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-rw-r--r--drivers/gpio/Kconfig7
-rw-r--r--drivers/gpio/Makefile3
-rw-r--r--drivers/gpio/pcf50633-gpio.c228
-rw-r--r--drivers/mfd/Kconfig8
-rw-r--r--drivers/mfd/Makefile7
-rw-r--r--drivers/mfd/glamo/Kconfig42
-rw-r--r--drivers/mfd/glamo/Makefile11
-rw-r--r--drivers/mfd/glamo/glamo-core.c1289
-rw-r--r--drivers/mfd/glamo/glamo-core.h61
-rw-r--r--drivers/mfd/glamo/glamo-fb.c982
-rw-r--r--drivers/mfd/glamo/glamo-gpio.c285
-rw-r--r--drivers/mfd/glamo/glamo-mci.c1023
-rw-r--r--drivers/mfd/glamo/glamo-regs.h630
-rw-r--r--drivers/mfd/pcf50633-adc.c39
-rw-r--r--drivers/mfd/pcf50633-core.c351
-rw-r--r--drivers/mfd/pcf50633-gpio.c121
-rw-r--r--drivers/mfd/pcf50633-irq.c319
-rw-r--r--drivers/mtd/nand/s3c2410.c2
-rw-r--r--drivers/serial/samsung.c19
-rw-r--r--drivers/usb/gadget/s3c2410_udc.c3
-rw-r--r--drivers/video/backlight/Kconfig20
-rw-r--r--drivers/video/backlight/Makefile2
-rw-r--r--drivers/video/backlight/jbt6k74.c896
-rw-r--r--drivers/video/backlight/pcf50633-backlight.c189
24 files changed, 6046 insertions, 491 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index fee678f74a1..c6b9a40bffa 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -235,6 +235,13 @@ config GPIO_ADP5588
To compile this driver as a module, choose M here: the module will be
called adp5588-gpio.
+config GPIO_PCF50633
+ tristate "GPIO support for NXP PCF50633"
+ depends on MFD_PCF50633
+ help
+ Say yes here if you want to include support GPIO for pins on
+ the PCF50633 chip.
+
comment "PCI GPIO expanders:"
config GPIO_CS5535
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 10f3f8d958b..4fc4675a67b 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -27,4 +27,5 @@ obj-$(CONFIG_GPIO_VR41XX) += vr41xx_giu.o
obj-$(CONFIG_GPIO_WM831X) += wm831x-gpio.o
obj-$(CONFIG_GPIO_WM8350) += wm8350-gpiolib.o
obj-$(CONFIG_GPIO_WM8994) += wm8994-gpio.o
-obj-$(CONFIG_GPIO_SCH) += sch_gpio.o \ No newline at end of file
+obj-$(CONFIG_GPIO_SCH) += sch_gpio.o
+obj-$(CONFIG_GPIO_PCF50633) += pcf50633-gpio.o
diff --git a/drivers/gpio/pcf50633-gpio.c b/drivers/gpio/pcf50633-gpio.c
new file mode 100644
index 00000000000..eb044e805bf
--- /dev/null
+++ b/drivers/gpio/pcf50633-gpio.c
@@ -0,0 +1,228 @@
+/* NXP PCF50633 GPIO Driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Balaji Rao <balajirrao@openmoko.org>
+ * Copyright 2010, Lars-Peter Clausen <lars@metafoo.de>
+ * All rights reserved.
+ *
+ * Broken down from monstrous PCF50633 driver mainly by
+ * Harald Welte, Andy Green and Werner Almesberger
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/mfd/pcf50633/gpio.h>
+#include <linux/gpio.h>
+
+#define PCF50633_REG_GPIOCTL 0x13
+#define PCF50633_REG_GPIOCFG(x) (0x14 + (x))
+
+enum pcf50633_regulator_id {
+ PCF50633_REGULATOR_AUTO,
+ PCF50633_REGULATOR_DOWN1,
+ PCF50633_REGULATOR_DOWN2,
+ PCF50633_REGULATOR_LDO1,
+ PCF50633_REGULATOR_LDO2,
+ PCF50633_REGULATOR_LDO3,
+ PCF50633_REGULATOR_LDO4,
+ PCF50633_REGULATOR_LDO5,
+ PCF50633_REGULATOR_LDO6,
+ PCF50633_REGULATOR_HCLDO,
+ PCF50633_REGULATOR_MEMLDO,
+};
+
+#define PCF50633_REG_AUTOOUT 0x1a
+#define PCF50633_REG_DOWN1OUT 0x1e
+#define PCF50633_REG_DOWN2OUT 0x22
+#define PCF50633_REG_MEMLDOOUT 0x26
+#define PCF50633_REG_LDO1OUT 0x2d
+#define PCF50633_REG_LDO2OUT 0x2f
+#define PCF50633_REG_LDO3OUT 0x31
+#define PCF50633_REG_LDO4OUT 0x33
+#define PCF50633_REG_LDO5OUT 0x35
+#define PCF50633_REG_LDO6OUT 0x37
+#define PCF50633_REG_HCLDOOUT 0x39
+
+static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
+ [PCF50633_REGULATOR_AUTO] = PCF50633_REG_AUTOOUT,
+ [PCF50633_REGULATOR_DOWN1] = PCF50633_REG_DOWN1OUT,
+ [PCF50633_REGULATOR_DOWN2] = PCF50633_REG_DOWN2OUT,
+ [PCF50633_REGULATOR_MEMLDO] = PCF50633_REG_MEMLDOOUT,
+ [PCF50633_REGULATOR_LDO1] = PCF50633_REG_LDO1OUT,
+ [PCF50633_REGULATOR_LDO2] = PCF50633_REG_LDO2OUT,
+ [PCF50633_REGULATOR_LDO3] = PCF50633_REG_LDO3OUT,
+ [PCF50633_REGULATOR_LDO4] = PCF50633_REG_LDO4OUT,
+ [PCF50633_REGULATOR_LDO5] = PCF50633_REG_LDO5OUT,
+ [PCF50633_REGULATOR_LDO6] = PCF50633_REG_LDO6OUT,
+ [PCF50633_REGULATOR_HCLDO] = PCF50633_REG_HCLDOOUT,
+};
+
+struct pcf50633_gpio {
+ struct pcf50633 *pcf;
+ struct gpio_chip chip;
+};
+
+static inline struct pcf50633 *gpio_chip_to_pcf50633(struct gpio_chip *chip)
+{
+ struct pcf50633 *pcf = dev_to_pcf50633(chip->dev->parent);
+ return pcf;
+}
+
+static void pcf50633_gpio_set_value(struct gpio_chip *chip, unsigned gpio, int value)
+{
+ struct pcf50633 *pcf = gpio_chip_to_pcf50633(chip);
+ u8 reg;
+
+ reg = PCF50633_REG_GPIOCFG(gpio);
+
+ pcf50633_reg_set_bit_mask(pcf, reg, 0x07, value ? 0x7 : 0x0);
+}
+
+static int pcf50633_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
+{
+ struct pcf50633 *pcf = gpio_chip_to_pcf50633(chip);
+ return pcf50633_reg_read(pcf, PCF50633_REG_GPIOCFG(gpio)) >> 3;
+}
+
+
+static int pcf50633_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
+ int value)
+{
+ struct pcf50633 *pcf = gpio_chip_to_pcf50633(chip);
+ int ret;
+
+ ret = pcf50633_gpio_set_config(pcf, pcf->pdata->gpio_base + gpio,
+ PCF50633_GPIO_CONFIG_OUTPUT);
+ if (!ret)
+ pcf50633_gpio_set_value(chip, gpio, value);
+
+ return ret;
+}
+
+static int pcf50633_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
+{
+ return -ENOSYS;
+}
+
+int pcf50633_gpio_set_config(struct pcf50633 *pcf, unsigned gpio,
+ enum pcf50633_gpio_config config)
+{
+ u8 reg;
+ u8 direction;
+ int ret;
+
+ gpio -= pcf->pdata->gpio_base;
+
+ if (gpio < 3) {
+ direction = (config == PCF50633_GPIO_CONFIG_INPUT) ? (1 << gpio) : 0;
+ ret = pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_GPIOCTL, (1 << gpio),
+ direction);
+ if (ret) {
+ return ret;
+ }
+ } else if (gpio > 3 || config == PCF50633_GPIO_CONFIG_INPUT) {
+ return -EINVAL;
+ }
+
+ if (config != PCF50633_GPIO_CONFIG_INPUT) {
+ reg = PCF50633_REG_GPIOCFG(gpio);
+ ret = pcf50633_reg_set_bit_mask(pcf, reg, 0x0f, config);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pcf50633_gpio_set_config);
+
+int pcf50633_gpio_power_supply_set(struct pcf50633 *pcf,
+ int gpio, int regulator, int on)
+{
+ u8 reg, val, mask;
+
+ gpio -= pcf->pdata->gpio_base;
+
+ /* the *ENA register is always one after the *OUT register */
+ reg = pcf50633_regulator_registers[regulator] + 1;
+
+ val = !!on << (gpio - PCF50633_GPIO1);
+ mask = 1 << (gpio - PCF50633_GPIO1);
+
+ return pcf50633_reg_set_bit_mask(pcf, reg, mask, val);
+}
+EXPORT_SYMBOL_GPL(pcf50633_gpio_power_supply_set);
+
+
+static int __devinit pcf50633_gpio_probe(struct platform_device *pdev)
+{
+ struct pcf50633 *pcf = dev_to_pcf50633(pdev->dev.parent);
+ struct pcf50633_gpio *pcf_gpio;
+
+ pcf_gpio = kzalloc(sizeof(*pcf_gpio), GFP_KERNEL);
+
+ if (!pcf_gpio)
+ return -ENOMEM;
+
+ pcf_gpio->pcf = pcf;
+
+ pcf_gpio->chip.direction_input = pcf50633_gpio_direction_input;
+ pcf_gpio->chip.direction_output = pcf50633_gpio_direction_output;
+ pcf_gpio->chip.get = pcf50633_gpio_get_value;
+ pcf_gpio->chip.set = pcf50633_gpio_set_value;
+
+ pcf_gpio->chip.base = pcf->pdata->gpio_base;
+ pcf_gpio->chip.ngpio = 4;
+ pcf_gpio->chip.label = dev_name(pcf->dev);
+ pcf_gpio->chip.can_sleep = 1;
+ pcf_gpio->chip.owner = THIS_MODULE;
+ pcf_gpio->chip.dev = &pdev->dev;
+
+ platform_set_drvdata(pdev, pcf_gpio);
+
+ return gpiochip_add(&pcf_gpio->chip);
+}
+
+static int __devexit pcf50633_gpio_remove(struct platform_device *pdev)
+{
+ struct pcf50633_gpio *pcf_gpio = platform_get_drvdata(pdev);
+
+ gpiochip_remove(&pcf_gpio->chip);
+
+ platform_set_drvdata(pdev, NULL);
+ kfree(pcf_gpio);
+
+ return 0;
+}
+
+static struct platform_driver pcf50633_gpio_driver = {
+ .probe = pcf50633_gpio_probe,
+ .remove = __devexit_p(pcf50633_gpio_remove),
+ .driver = {
+ .name = "pcf50633-gpio",
+ .owner = THIS_MODULE,
+ },
+};
+
+int __init pcf50633_gpio_init(void)
+{
+ return platform_driver_register(&pcf50633_gpio_driver);
+}
+module_init(pcf50633_gpio_init);
+
+void __exit pcf50633_gpio_exit(void)
+{
+ platform_driver_unregister(&pcf50633_gpio_driver);
+}
+module_exit(pcf50633_gpio_exit);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("GPIO driver for the PCF50633");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 2a5a0b78f84..8e615af44b5 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -334,13 +334,6 @@ config PCF50633_ADC
Say yes here if you want to include support for ADC in the
NXP PCF50633 chip.
-config PCF50633_GPIO
- tristate "Support for NXP PCF50633 GPIO"
- depends on MFD_PCF50633
- help
- Say yes here if you want to include support GPIO for pins on
- the PCF50633 chip.
-
config AB3100_CORE
bool "ST-Ericsson AB3100 Mixed Signal Circuit core functions"
depends on I2C=y
@@ -398,6 +391,7 @@ config LPC_SCH
help
LPC bridge function of the Intel SCH provides support for
System Management Bus and General Purpose I/O.
+source "drivers/mfd/glamo/Kconfig"
endmenu
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 22715add99a..86481d20c20 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -7,6 +7,7 @@ obj-$(CONFIG_MFD_88PM860X) += 88pm860x.o
obj-$(CONFIG_MFD_SM501) += sm501.o
obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o
obj-$(CONFIG_MFD_SH_MOBILE_SDHI) += sh_mobile_sdhi.o
+obj-$(CONFIG_MFD_GLAMO) += glamo/
obj-$(CONFIG_HTC_EGPIO) += htc-egpio.o
obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o
@@ -54,12 +55,12 @@ obj-$(CONFIG_PMIC_DA903X) += da903x.o
max8925-objs := max8925-core.o max8925-i2c.o
obj-$(CONFIG_MFD_MAX8925) += max8925.o
-obj-$(CONFIG_MFD_PCF50633) += pcf50633-core.o
+pcf50633-objs := pcf50633-core.o pcf50633-irq.o
+obj-$(CONFIG_MFD_PCF50633) += pcf50633.o
obj-$(CONFIG_PCF50633_ADC) += pcf50633-adc.o
-obj-$(CONFIG_PCF50633_GPIO) += pcf50633-gpio.o
obj-$(CONFIG_AB3100_CORE) += ab3100-core.o
obj-$(CONFIG_AB3100_OTP) += ab3100-otp.o
obj-$(CONFIG_AB4500_CORE) += ab4500-core.o
obj-$(CONFIG_MFD_TIMBERDALE) += timberdale.o
obj-$(CONFIG_PMIC_ADP5520) += adp5520.o
-obj-$(CONFIG_LPC_SCH) += lpc_sch.o \ No newline at end of file
+obj-$(CONFIG_LPC_SCH) += lpc_sch.o
diff --git a/drivers/mfd/glamo/Kconfig b/drivers/mfd/glamo/Kconfig
new file mode 100644
index 00000000000..3aa4831a4ff
--- /dev/null
+++ b/drivers/mfd/glamo/Kconfig
@@ -0,0 +1,42 @@
+config MFD_GLAMO
+ bool "Smedia Glamo 336x/337x support"
+ select MFD_CORE
+ help
+ This enables the core driver for the Smedia Glamo 336x/337x
+ multi-function device. It includes irq_chip demultiplex as
+ well as clock / power management and GPIO support.
+
+config MFD_GLAMO_FB
+ tristate "Smedia Glamo 336x/337x framebuffer support"
+ depends on FB && MFD_GLAMO
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ help
+ Frame buffer driver for the LCD controller in the Smedia Glamo
+ 336x/337x.
+
+ This driver is also available as a module ( = code which can be
+ inserted and removed from the running kernel whenever you want). The
+ module will be called glamofb. If you want to compile it as a module,
+ say M here and read <file:Documentation/modules.txt>.
+
+ If unsure, say N.
+
+config MFD_GLAMO_GPIO
+ tristate "Glamo GPIO support"
+ depends on MFD_GLAMO
+
+ help
+ Enable a bitbanging SPI adapter driver for the Smedia Glamo.
+
+config MFD_GLAMO_MCI
+ tristate "Glamo S3C SD/MMC Card Interface support"
+ depends on MFD_GLAMO && MMC && REGULATOR
+ select CRC7
+ help
+ This selects a driver for the MCI interface found in
+ the S-Media GLAMO chip, as used in Openmoko
+ neo1973 GTA-02.
+
+ If unsure, say N.
diff --git a/drivers/mfd/glamo/Makefile b/drivers/mfd/glamo/Makefile
new file mode 100644
index 00000000000..ebf26f7e473
--- /dev/null
+++ b/drivers/mfd/glamo/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for the Smedia Glamo framebuffer driver
+#
+
+obj-$(CONFIG_MFD_GLAMO) += glamo-core.o
+obj-$(CONFIG_MFD_GLAMO_GPIO) += glamo-gpio.o
+obj-$(CONFIG_MFD_GLAMO_SPI) += glamo-spi.o
+
+obj-$(CONFIG_MFD_GLAMO_FB) += glamo-fb.o
+obj-$(CONFIG_MFD_GLAMO_MCI) += glamo-mci.o
+
diff --git a/drivers/mfd/glamo/glamo-core.c b/drivers/mfd/glamo/glamo-core.c
new file mode 100644
index 00000000000..23073fedea2
--- /dev/null
+++ b/drivers/mfd/glamo/glamo-core.c
@@ -0,0 +1,1289 @@
+/* Smedia Glamo 3362 driver
+ *
+ * (C) 2007 by Openmoko, Inc.
+ * Author: Harald Welte <laforge@openmoko.org>
+ * (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/workqueue.h>
+#include <linux/platform_device.h>
+#include <linux/kernel_stat.h>
+#include <linux/spinlock.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/glamo.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#include <linux/pm.h>
+
+#include "glamo-regs.h"
+#include "glamo-core.h"
+
+#define GLAMO_MEM_REFRESH_COUNT 0x100
+
+#define GLAMO_NR_IRQS 9
+
+#define GLAMO_IRQ_HOSTBUS 0
+#define GLAMO_IRQ_JPEG 1
+#define GLAMO_IRQ_MPEG 2
+#define GLAMO_IRQ_MPROC1 3
+#define GLAMO_IRQ_MPROC0 4
+#define GLAMO_IRQ_CMDQUEUE 5
+#define GLAMO_IRQ_2D 6
+#define GLAMO_IRQ_MMC 7
+#define GLAMO_IRQ_RISC 8
+
+/*
+ * Glamo internal settings
+ *
+ * We run the memory interface from the faster PLLB on 2.6.28 kernels and
+ * above. Couple of GTA02 users report trouble with memory bus when they
+ * upgraded from 2.6.24. So this parameter allows reversion to 2.6.24
+ * scheme if their Glamo chip needs it.
+ *
+ * you can override the faster default on kernel commandline using
+ *
+ * glamo3362.slow_memory=1
+ *
+ * for example
+ */
+
+static int slow_memory;
+module_param(slow_memory, int, 0644);
+
+struct reg_range {
+ int start;
+ int count;
+ char *name;
+ unsigned dump:1;
+};
+
+static const struct reg_range reg_range[] = {
+ { 0x0000, 0x76, "General", 1 },
+ { 0x0200, 0x18, "Host Bus", 1 },
+ { 0x0300, 0x38, "Memory", 1 },
+/* { 0x0400, 0x100, "Sensor", 0 }, */
+/* { 0x0500, 0x300, "ISP", 0 }, */
+/* { 0x0800, 0x400, "JPEG", 0 }, */
+/* { 0x0c00, 0xcc, "MPEG", 0 }, */
+ { 0x1100, 0xb2, "LCD 1", 1 },
+ { 0x1200, 0x64, "LCD 2", 1 },
+ { 0x1400, 0x42, "MMC", 1 },
+/* { 0x1500, 0x080, "MPU 0", 0 },
+ { 0x1580, 0x080, "MPU 1", 0 },
+ { 0x1600, 0x080, "Cmd Queue", 0 },
+ { 0x1680, 0x080, "RISC CPU", 0 },*/
+ { 0x1700, 0x400, "2D Unit", 1 },
+/* { 0x1b00, 0x900, "3D Unit", 0 }, */
+};
+
+static inline void __reg_write(struct glamo_core *glamo,
+ uint16_t reg, uint16_t val)
+{
+ writew(val, glamo->base + reg);
+}
+
+void glamo_reg_write(struct glamo_core *glamo,
+ uint16_t reg, uint16_t val)
+{
+ spin_lock(&glamo->lock);
+ __reg_write(glamo, reg, val);
+ spin_unlock(&glamo->lock);
+}
+EXPORT_SYMBOL_GPL(glamo_reg_write);
+
+
+static inline uint16_t __reg_read(struct glamo_core *glamo,
+ uint16_t reg)
+{
+ return readw(glamo->base + reg);
+}
+
+uint16_t glamo_reg_read(struct glamo_core *glamo, uint16_t reg)
+{
+ uint16_t val;
+ spin_lock(&glamo->lock);
+ val = __reg_read(glamo, reg);
+ spin_unlock(&glamo->lock);
+
+ return val;
+}
+EXPORT_SYMBOL_GPL(glamo_reg_read);
+
+static void __reg_set_bit_mask(struct glamo_core *glamo,
+ uint16_t reg, uint16_t mask,
+ uint16_t val)
+{
+ uint16_t tmp;
+
+ val &= mask;
+
+ tmp = __reg_read(glamo, reg);
+ tmp &= ~mask;
+ tmp |= val;
+ __reg_write(glamo, reg, tmp);
+}
+
+static void reg_set_bit_mask(struct glamo_core *glamo,
+ uint16_t reg, uint16_t mask,
+ uint16_t val)
+{
+ spin_lock(&glamo->lock);
+ __reg_set_bit_mask(glamo, reg, mask, val);
+ spin_unlock(&glamo->lock);
+}
+
+static inline void __reg_set_bit(struct glamo_core *glamo,
+ uint16_t reg, uint16_t bit)
+{
+ uint16_t tmp;
+ tmp = __reg_read(glamo, reg);
+ tmp |= bit;
+ __reg_write(glamo, reg, tmp);
+}
+
+static inline void __reg_clear_bit(struct glamo_core *glamo,
+ uint16_t reg, uint16_t bit)
+{
+ uint16_t tmp;
+ tmp = __reg_read(glamo, reg);
+ tmp &= ~bit;
+ __reg_write(glamo, reg, tmp);
+}
+
+static void __reg_write_batch(struct glamo_core *glamo, uint16_t reg,
+ uint16_t count, uint16_t *values)
+{
+ uint16_t end;
+ for (end = reg + count * 2; reg < end; reg += 2, ++values)
+ __reg_write(glamo, reg, *values);
+}
+
+static void __reg_read_batch(struct glamo_core *glamo, uint16_t reg,
+ uint16_t count, uint16_t *values)
+{
+ uint16_t end;
+ for (end = reg + count * 2; reg < end; reg += 2, ++values)
+ *values = __reg_read(glamo, reg);
+}
+
+void glamo_reg_write_batch(struct glamo_core *glamo, uint16_t reg,
+ uint16_t count, uint16_t *values)
+{
+ spin_lock(&glamo->lock);
+ __reg_write_batch(glamo, reg, count, values);
+ spin_unlock(&glamo->lock);
+}
+EXPORT_SYMBOL(glamo_reg_write_batch);
+
+void glamo_reg_read_batch(struct glamo_core *glamo, uint16_t reg,
+ uint16_t count, uint16_t *values)
+{
+ spin_lock(&glamo->lock);
+ __reg_read_batch(glamo, reg, count, values);
+ spin_unlock(&glamo->lock);
+}
+EXPORT_SYMBOL(glamo_reg_read_batch);
+
+/***********************************************************************
+ * resources of sibling devices
+ ***********************************************************************/
+
+static struct resource glamo_fb_resources[] = {
+ {
+ .name = "glamo-fb-regs",
+ .start = GLAMO_REGOFS_LCD,
+ .end = GLAMO_REGOFS_MMC - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .name = "glamo-fb-mem",
+ .start = GLAMO_OFFSET_FB,
+ .end = GLAMO_OFFSET_FB + GLAMO_FB_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct resource glamo_mmc_resources[] = {
+ {
+ .name = "glamo-mmc-regs",
+ .start = GLAMO_REGOFS_MMC,
+ .end = GLAMO_REGOFS_MPROC0 - 1,
+ .flags = IORESOURCE_MEM
+ }, {
+ .name = "glamo-mmc-mem",
+ .start = GLAMO_OFFSET_FB + GLAMO_FB_SIZE,
+ .end = GLAMO_OFFSET_FB + GLAMO_FB_SIZE +
+ GLAMO_MMC_BUFFER_SIZE - 1,
+ .flags = IORESOURCE_MEM
+ }, {
+ .start = GLAMO_IRQ_MMC,
+ .end = GLAMO_IRQ_MMC,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+enum glamo_cells {
+ GLAMO_CELL_FB,
+ GLAMO_CELL_MMC,
+ GLAMO_CELL_GPIO,
+};
+
+static const struct mfd_cell glamo_cells[] = {
+ [GLAMO_CELL_FB] = {
+ .name = "glamo-fb",
+ .num_resources = ARRAY_SIZE(glamo_fb_resources),
+ .resources = glamo_fb_resources,
+ },
+ [GLAMO_CELL_MMC] = {
+ .name = "glamo-mci",
+ .num_resources = ARRAY_SIZE(glamo_mmc_resources),
+ .resources = glamo_mmc_resources,
+ },
+ [GLAMO_CELL_GPIO] = {
+ .name = "glamo-gpio",
+ },
+};
+
+/***********************************************************************
+ * IRQ demultiplexer
+ ***********************************************************************/
+#define glamo_irq_bit(glamo, x) BIT(x - glamo->irq_base)
+
+static inline struct glamo_core *irq_to_glamo(unsigned int irq)
+{
+ return (struct glamo_core *)get_irq_chip_data(irq);
+}
+
+static void glamo_ack_irq(unsigned int irq)
+{
+ struct glamo_core *glamo = irq_to_glamo(irq);
+ /* clear interrupt source */
+ __reg_write(glamo, GLAMO_REG_IRQ_CLEAR, glamo_irq_bit(glamo, irq));
+}
+
+static void glamo_mask_irq(unsigned int irq)
+{
+ struct glamo_core *glamo = irq_to_glamo(irq);
+
+ /* clear bit in enable register */
+ __reg_clear_bit(glamo, GLAMO_REG_IRQ_ENABLE, glamo_irq_bit(glamo, irq));
+}
+
+static void glamo_unmask_irq(unsigned int irq)
+{
+ struct glamo_core *glamo = irq_to_glamo(irq);
+
+ /* set bit in enable register */
+ __reg_set_bit(glamo, GLAMO_REG_IRQ_ENABLE, glamo_irq_bit(glamo, irq));
+}
+
+static struct irq_chip glamo_irq_chip = {
+ .name = "glamo",
+ .ack = glamo_ack_irq,
+ .mask = glamo_mask_irq,
+ .unmask = glamo_unmask_irq,
+};
+
+static void glamo_irq_demux_handler(unsigned int irq, struct irq_desc *desc)
+{
+ struct glamo_core *glamo = get_irq_desc_data(desc);
+ desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
+
+ if (unlikely(desc->status & IRQ_INPROGRESS)) {
+ desc->status |= (IRQ_PENDING | IRQ_MASKED);
+ desc->chip->mask(irq);
+ desc->chip->ack(irq);
+ return;
+ }
+ kstat_incr_irqs_this_cpu(irq, desc);
+
+ desc->chip->ack(irq);
+ desc->status |= IRQ_INPROGRESS;
+
+ do {
+ uint16_t irqstatus;
+ int i;
+
+ if (unlikely((desc->status &
+ (IRQ_PENDING | IRQ_MASKED | IRQ_DISABLED)) ==
+ (IRQ_PENDING | IRQ_MASKED))) {
+ /* dealing with pending IRQ, unmasking */
+ desc->chip->unmask(irq);
+ desc->status &= ~IRQ_MASKED;
+ }
+
+ desc->status &= ~IRQ_PENDING;
+
+ /* read IRQ status register */
+ irqstatus = __reg_read(glamo, GLAMO_REG_IRQ_STATUS);
+ for (i = 0; i < 9; ++i) {
+ if (irqstatus & BIT(i))
+ generic_handle_irq(glamo->irq_base + i);
+ }
+
+ } while ((desc->status & (IRQ_PENDING | IRQ_DISABLED)) == IRQ_PENDING);
+
+ desc->status &= ~IRQ_INPROGRESS;
+}
+
+/*
+sysfs
+*/
+
+static ssize_t regs_write(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct glamo_core *glamo = dev_get_drvdata(dev);
+ unsigned int reg;
+ unsigned int val;
+
+ sscanf(buf, "%u %u", &reg, &val);
+ printk(KERN_INFO"reg 0x%02x <-- 0x%04x\n",
+ reg, val);
+
+ glamo_reg_write(glamo, reg, val);
+
+ return count;
+}
+
+static ssize_t regs_read(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct glamo_core *glamo = dev_get_drvdata(dev);
+ int i, n;
+ char *end = buf;
+ const struct reg_range *rr = reg_range;
+
+ spin_lock(&glamo->lock);
+
+ for (i = 0; i < ARRAY_SIZE(reg_range); ++i, ++rr) {
+ if (!rr->dump)
+ continue;
+ end += sprintf(end, "\n%s\n", rr->name);
+ for (n = rr->start; n < rr->start + rr->count; n += 2) {
+ if ((n & 15) == 0)
+ end += sprintf(end, "\n%04X: ", n);
+ end += sprintf(end, "%04x ", __reg_read(glamo, n));
+ }
+ end += sprintf(end, "\n");
+ }
+ spin_unlock(&glamo->lock);
+
+ return end - buf;
+}
+
+static DEVICE_ATTR(regs, 0644, regs_read, regs_write);
+
+struct glamo_engine_reg_set {
+ uint16_t reg;
+ uint16_t mask_suspended;
+ uint16_t mask_enabled;
+};
+
+struct glamo_engine_desc {
+ const char *name;
+ uint16_t hostbus;
+ const struct glamo_engine_reg_set *regs;
+ int num_regs;
+};
+
+static const struct glamo_engine_reg_set glamo_lcd_regs[] = {
+ { GLAMO_REG_CLOCK_LCD,
+ GLAMO_CLOCK_LCD_EN_M5CLK |
+ GLAMO_CLOCK_LCD_DG_M5CLK |
+ GLAMO_CLOCK_LCD_EN_DMCLK,
+
+ GLAMO_CLOCK_LCD_EN_DHCLK |
+ GLAMO_CLOCK_LCD_EN_DCLK
+ },
+ { GLAMO_REG_CLOCK_GEN5_1,
+ GLAMO_CLOCK_GEN51_EN_DIV_DMCLK,
+
+ GLAMO_CLOCK_GEN51_EN_DIV_DHCLK |
+ GLAMO_CLOCK_GEN51_EN_DIV_DCLK
+ }
+};
+
+static const struct glamo_engine_reg_set glamo_mmc_regs[] = {
+ { GLAMO_REG_CLOCK_MMC,
+ GLAMO_CLOCK_MMC_EN_M9CLK |
+ GLAMO_CLOCK_MMC_DG_M9CLK,
+
+ GLAMO_CLOCK_MMC_EN_TCLK |
+ GLAMO_CLOCK_MMC_DG_TCLK
+ },
+ { GLAMO_REG_CLOCK_GEN5_1,
+ 0,
+ GLAMO_CLOCK_GEN51_EN_DIV_TCLK
+ }
+};
+
+static const struct glamo_engine_reg_set glamo_2d_regs[] = {
+ { GLAMO_REG_CLOCK_2D,
+ GLAMO_CLOCK_2D_EN_M7CLK |
+ GLAMO_CLOCK_2D_DG_M7CLK,
+
+ GLAMO_CLOCK_2D_EN_GCLK |
+ GLAMO_CLOCK_2D_DG_GCLK
+ },
+ { GLAMO_REG_CLOCK_GEN5_1,
+ 0,
+ GLAMO_CLOCK_GEN51_EN_DIV_GCLK,
+ }
+};
+
+static const struct glamo_engine_reg_set glamo_cmdq_regs[] = {
+ { GLAMO_REG_CLOCK_2D,
+ GLAMO_CLOCK_2D_EN_M6CLK,
+ 0
+ },
+};
+
+#define GLAMO_ENGINE(xname, xhostbus, xregs) { \
+ .name = xname, \
+ .hostbus = xhostbus, \
+ .num_regs = ARRAY_SIZE(xregs), \
+ .regs = xregs, \
+}
+
+static const struct glamo_engine_desc glamo_engines[] = {
+ [GLAMO_ENGINE_LCD] = GLAMO_ENGINE("LCD", GLAMO_HOSTBUS2_MMIO_EN_LCD,
+ glamo_lcd_regs),
+ [GLAMO_ENGINE_MMC] = GLAMO_ENGINE("MMC", GLAMO_HOSTBUS2_MMIO_EN_MMC,
+ glamo_mmc_regs),
+ [GLAMO_ENGINE_2D] = GLAMO_ENGINE("2D", GLAMO_HOSTBUS2_MMIO_EN_2D,
+ glamo_2d_regs),
+ [GLAMO_ENGINE_CMDQ] = GLAMO_ENGINE("CMDQ", GLAMO_HOSTBUS2_MMIO_EN_CQ,
+ glamo_cmdq_regs),
+};
+
+static inline const char *glamo_engine_name(enum glamo_engine engine)
+{
+ return glamo_engines[engine].name;
+}
+
+/***********************************************************************
+ * 'engine' support
+ ***********************************************************************/
+
+int __glamo_engine_enable(struct glamo_core *glamo, enum glamo_engine engine)
+{
+ int i;
+ const struct glamo_engine_desc *engine_desc = &glamo_engines[engine];
+ const struct glamo_engine_reg_set *reg;
+
+ switch (engine) {
+ case GLAMO_ENGINE_LCD:
+ case GLAMO_ENGINE_MMC:
+ case GLAMO_ENGINE_2D:
+ case GLAMO_ENGINE_CMDQ:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ reg = engine_desc->regs;
+
+ __reg_set_bit(glamo, GLAMO_REG_HOSTBUS(2),
+ engine_desc->hostbus);
+ for (i = engine_desc->num_regs; i; --i, ++reg)
+ __reg_set_bit(glamo, reg->reg,
+ reg->mask_suspended | reg->mask_enabled);
+
+ return 0;
+}
+
+int glamo_engine_enable(struct glamo_core *glamo, enum glamo_engine engine)
+{
+ int ret = 0;
+
+ spin_lock(&glamo->lock);
+
+ if (glamo->engine_state[engine] != GLAMO_ENGINE_ENABLED) {
+ ret = __glamo_engine_enable(glamo, engine);
+ if (!ret)
+ glamo->engine_state[engine] = GLAMO_ENGINE_ENABLED;
+ }
+
+ spin_unlock(&glamo->lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(glamo_engine_enable);
+
+int __glamo_engine_disable(struct glamo_core *glamo, enum glamo_engine engine)
+{
+ int i;
+ const struct glamo_engine_desc *engine_desc = &glamo_engines[engine];
+ const struct glamo_engine_reg_set *reg;
+
+ switch (engine) {
+ case GLAMO_ENGINE_LCD:
+ case GLAMO_ENGINE_MMC:
+ case GLAMO_ENGINE_2D:
+ case GLAMO_ENGINE_CMDQ:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ reg = engine_desc->regs;
+
+ __reg_clear_bit(glamo, GLAMO_REG_HOSTBUS(2),
+ engine_desc->hostbus);
+ for (i = engine_desc->num_regs; i; --i, ++reg)
+ __reg_clear_bit(glamo, reg->reg,
+ reg->mask_suspended | reg->mask_enabled);
+
+ return 0;
+}
+int glamo_engine_disable(struct glamo_core *glamo, enum glamo_engine engine)
+{
+ int ret = 0;
+
+ spin_lock(&glamo->lock);
+
+ if (glamo->engine_state[engine] != GLAMO_ENGINE_DISABLED) {
+ ret = __glamo_engine_disable(glamo, engine);
+ if (!ret)
+ glamo->engine_state[engine] = GLAMO_ENGINE_DISABLED;
+ }
+
+ spin_unlock(&glamo->lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(glamo_engine_disable);
+
+int __glamo_engine_suspend(struct glamo_core *glamo, enum glamo_engine engine)
+{
+ int i;
+ const struct glamo_engine_desc *engine_desc = &glamo_engines[engine];
+ const struct glamo_engine_reg_set *reg;
+
+ switch (engine) {
+ case GLAMO_ENGINE_LCD:
+ case GLAMO_ENGINE_MMC:
+ case GLAMO_ENGINE_2D:
+ case GLAMO_ENGINE_CMDQ:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ reg = engine_desc->regs;
+
+ __reg_set_bit(glamo, GLAMO_REG_HOSTBUS(2),
+ engine_desc->hostbus);
+ for (i = engine_desc->num_regs; i; --i, ++reg) {
+ __reg_set_bit(glamo, reg->reg, reg->mask_suspended);
+ __reg_clear_bit(glamo, reg->reg, reg->mask_enabled);
+ }
+
+ return 0;
+}
+
+int glamo_engine_suspend(struct glamo_core *glamo, enum glamo_engine engine)
+{
+ int ret = 0;
+
+ spin_lock(&glamo->lock);
+
+ if (glamo->engine_state[engine] != GLAMO_ENGINE_SUSPENDED) {
+ ret = __glamo_engine_suspend(glamo, engine);
+ if (!ret)
+ glamo->engine_state[engine] = GLAMO_ENGINE_SUSPENDED;
+ }
+
+ spin_unlock(&glamo->lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(glamo_engine_suspend);
+
+static const struct glamo_script reset_regs[] = {
+ [GLAMO_ENGINE_LCD] = {
+ GLAMO_REG_CLOCK_LCD, GLAMO_CLOCK_LCD_RESET
+ },
+ [GLAMO_ENGINE_MMC] = {
+ GLAMO_REG_CLOCK_MMC, GLAMO_CLOCK_MMC_RESET
+ },
+ [GLAMO_ENGINE_CMDQ] = {
+ GLAMO_REG_CLOCK_2D, GLAMO_CLOCK_2D_CQ_RESET
+ },
+ [GLAMO_ENGINE_2D] = {
+ GLAMO_REG_CLOCK_2D, GLAMO_CLOCK_2D_RESET
+ },
+ [GLAMO_ENGINE_JPEG] = {
+ GLAMO_REG_CLOCK_JPEG, GLAMO_CLOCK_JPEG_RESET
+ },
+};
+
+void glamo_engine_reset(struct glamo_core *glamo, enum glamo_engine engine)
+{
+ uint16_t reg = reset_regs[engine].reg;
+ uint16_t val = reset_regs[engine].val;
+
+ if (engine >= ARRAY_SIZE(reset_regs)) {
+ dev_warn(&glamo->pdev->dev, "unknown engine %u ", engine);
+ return;
+ }
+
+ spin_lock(&glamo->lock);
+ __reg_set_bit(glamo, reg, val);
+ __reg_clear_bit(glamo, reg, val);
+ spin_unlock(&glamo->lock);
+}
+EXPORT_SYMBOL_GPL(glamo_engine_reset);
+
+int glamo_pll_rate(struct glamo_core *glamo,
+ enum glamo_pll pll)
+{
+ uint16_t reg;
+ unsigned int osci = glamo->pdata->osci_clock_rate;
+
+ switch (pll) {
+ case GLAMO_PLL1:
+ reg = __reg_read(glamo, GLAMO_REG_PLL_GEN1);
+ break;
+ case GLAMO_PLL2:
+ reg = __reg_read(glamo, GLAMO_REG_PLL_GEN3);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return (int)osci * (int)reg;
+}
+EXPORT_SYMBOL_GPL(glamo_pll_rate);
+
+int glamo_engine_reclock(struct glamo_core *glamo,
+ enum glamo_engine engine,
+ int hz)
+{
+ int pll;
+ uint16_t reg, mask, div;
+
+ if (!hz)
+ return -EINVAL;
+
+ switch (engine) {
+ case GLAMO_ENGINE_LCD:
+ pll = GLAMO_PLL1;
+ reg = GLAMO_REG_CLOCK_GEN7;
+ mask = 0xff;
+ break;
+ case GLAMO_ENGINE_MMC:
+ pll = GLAMO_PLL1;
+ reg = GLAMO_REG_CLOCK_GEN8;
+ mask = 0xff;
+ break;
+ default:
+ dev_warn(&glamo->pdev->dev,
+ "reclock of engine 0x%x not supported\n", engine);
+ return -EINVAL;
+ break;
+ }
+
+ pll = glamo_pll_rate(glamo, pll);
+
+ div = pll / hz;
+
+ if (div != 0 && pll / div <= hz)
+ --div;
+
+ if (div > mask)
+ div = mask;
+
+ dev_dbg(&glamo->pdev->dev,
+ "PLL %d, kHZ %d, div %d\n", pll, hz / 1000, div);
+
+ reg_set_bit_mask(glamo, reg, mask, div);
+ mdelay(5); /* wait some time to stabilize */
+
+ return pll / (div + 1);
+}
+EXPORT_SYMBOL_GPL(glamo_engine_reclock);
+
+/***********************************************************************
+ * script support
+ ***********************************************************************/
+
+#define GLAMO_SCRIPT_END 0xffff
+#define GLAMO_SCRIPT_WAIT 0xfffe
+#define GLAMO_SCRIPT_LOCK_PLL 0xfffd
+
+/*
+ * couple of people reported artefacts with 2.6.28 changes, this
+ * allows reversion to 2.6.24 settings
+*/
+static const uint16_t reg_0x200[] = {
+0xe03, /* 0 waits on Async BB R & W, Use PLL 2 for mem bus */
+0xef0, /* 3 waits on Async BB R & W, Use PLL 1 for mem bus */
+0xea0, /* 2 waits on Async BB R & W, Use PLL 1 for mem bus */
+0xe50, /* 1 waits on Async BB R & W, Use PLL 1 for mem bus */
+0xe00, /* 0 waits on Async BB R & W, Use PLL 1 for mem bus */
+0xef3, /* 3 waits on Async BB R & W, Use PLL 2 for mem bus */
+0xea3, /* 2 waits on Async BB R & W, Use PLL 2 for mem bus */
+0xe53, /* 1 waits on Async BB R & W, Use PLL 2 for mem bus */
+};
+
+static int glamo_run_script(struct glamo_core *glamo,
+ const struct glamo_script *script, int len,
+ int may_sleep)
+{
+ int i;
+ uint16_t status;
+ const struct glamo_script *line = script;
+
+ for (i = 0; i < len; ++i, ++line) {
+ switch (line->reg) {
+ case GLAMO_SCRIPT_END:
+ return 0;
+ case GLAMO_SCRIPT_WAIT:
+ if (may_sleep)
+ msleep(line->val);
+ else
+ mdelay(line->val * 4);
+ break;
+ case GLAMO_SCRIPT_LOCK_PLL:
+ /* spin until PLLs lock */
+ do {
+ status = __reg_read(glamo, GLAMO_REG_PLL_GEN5);
+ } while ((status & 3) != 3);
+ break;
+ case 0x200:
+ __reg_write(glamo, line->reg,
+ reg_0x200[slow_memory & 0x8]);
+ break;
+ default:
+ __reg_write(glamo, line->reg, line->val);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static const struct glamo_script glamo_init_script[] = {
+ { GLAMO_REG_CLOCK_HOST, 0x1000 },
+ { GLAMO_SCRIPT_WAIT, 2 },
+ { GLAMO_REG_CLOCK_MEMORY, 0x1000 },
+ { GLAMO_REG_CLOCK_MEMORY, 0x2000 },
+ { GLAMO_REG_CLOCK_LCD, 0x1000 },
+ { GLAMO_REG_CLOCK_MMC, 0x1000 },
+ { GLAMO_REG_CLOCK_ISP, 0x1000 },
+ { GLAMO_REG_CLOCK_ISP, 0x3000 },
+ { GLAMO_REG_CLOCK_JPEG, 0x1000 },
+ { GLAMO_REG_CLOCK_3D, 0x1000 },
+ { GLAMO_REG_CLOCK_3D, 0x3000 },
+ { GLAMO_REG_CLOCK_2D, 0x1000 },
+ { GLAMO_REG_CLOCK_2D, 0x3000 },
+ { GLAMO_REG_CLOCK_RISC1, 0x1000 },
+ { GLAMO_REG_CLOCK_MPEG, 0x1000 },
+ { GLAMO_REG_CLOCK_MPEG, 0x3000 },
+ { GLAMO_REG_CLOCK_MPROC, 0x1000 /*0x100f*/ },
+ { GLAMO_SCRIPT_WAIT, 2 },
+ { GLAMO_REG_CLOCK_HOST, 0x0000 },
+ { GLAMO_REG_CLOCK_MEMORY, 0x0000 },
+ { GLAMO_REG_CLOCK_LCD, 0x0000 },
+ { GLAMO_REG_CLOCK_MMC, 0x0000 },
+ { GLAMO_REG_PLL_GEN1, 0x05db }, /* 48MHz */
+ { GLAMO_REG_PLL_GEN3, 0x0aba }, /* 90MHz */
+ { GLAMO_SCRIPT_LOCK_PLL, 0 },
+ /*
+ * b9 of this register MUST be zero to get any interrupts on INT#
+ * the other set bits enable all the engine interrupt sources
+ */
+ { GLAMO_REG_IRQ_ENABLE, 0x0100 },
+ { GLAMO_REG_CLOCK_GEN6, 0x2000 },
+ { GLAMO_REG_CLOCK_GEN7, 0x0101 },
+ { GLAMO_REG_CLOCK_GEN8, 0x0100 },
+ { GLAMO_REG_CLOCK_HOST, 0x000d },
+ /*
+ * b7..b4 = 0 = no wait states on read or write
+ * b0 = 1 select PLL2 for Host interface, b1 = enable it
+ */
+ { GLAMO_REG_HOSTBUS(0), 0x0e03 /* this is replaced by script parser */ },
+ { GLAMO_REG_HOSTBUS(1), 0x07ff }, /* TODO: Disable all */
+ { GLAMO_REG_HOSTBUS(10), 0x0000 },
+ { GLAMO_REG_HOSTBUS(11), 0x4000 },
+ { GLAMO_REG_HOSTBUS(12), 0xf00e },
+
+ /* S-Media recommended "set tiling mode to 512 mode for memory access
+ * more efficiency when 640x480" */
+ { GLAMO_REG_MEM_TYPE, 0x0c74 }, /* 8MB, 16 word pg wr+rd */
+ { GLAMO_REG_MEM_GEN, 0xafaf }, /* 63 grants min + max */
+
+ { GLAMO_REG_MEM_TIMING1, 0x0108 },
+ { GLAMO_REG_MEM_TIMING2, 0x0010 }, /* Taa = 3 MCLK */
+ { GLAMO_REG_MEM_TIMING3, 0x0000 },
+ { GLAMO_REG_MEM_TIMING4, 0x0000 }, /* CE1# delay fall/rise */
+ { GLAMO_REG_MEM_TIMING5, 0x0000 }, /* UB# LB# */
+ { GLAMO_REG_MEM_TIMING6, 0x0000 }, /* OE# */
+ { GLAMO_REG_MEM_TIMING7, 0x0000 }, /* WE# */
+ { GLAMO_REG_MEM_TIMING8, 0x1002 }, /* MCLK delay, was 0x1000 */
+ { GLAMO_REG_MEM_TIMING9, 0x6006 },
+ { GLAMO_REG_MEM_TIMING10, 0x00ff },
+ { GLAMO_REG_MEM_TIMING11, 0x0001 },
+ { GLAMO_REG_MEM_POWER1, 0x0020 },
+ { GLAMO_REG_MEM_POWER2, 0x0000 },
+ { GLAMO_REG_MEM_DRAM1, 0x0000 },
+ { GLAMO_SCRIPT_WAIT, 1 },
+ { GLAMO_REG_MEM_DRAM1, 0xc100 },
+ { GLAMO_SCRIPT_WAIT, 1 },
+ { GLAMO_REG_MEM_DRAM1, 0xe100 },
+ { GLAMO_REG_MEM_DRAM2, 0x01d6 },
+ { GLAMO_REG_CLOCK_MEMORY, 0x000b },
+};
+
+/* Find out if we can support this version of the Glamo chip */
+static int __devinit glamo_supported(struct glamo_core *glamo)
+{
+ uint16_t dev_id, rev_id;
+
+ dev_id = __reg_read(glamo, GLAMO_REG_DEVICE_ID);
+ rev_id = __reg_read(glamo, GLAMO_REG_REVISION_ID);
+
+ switch (dev_id) {
+ case 0x3650:
+ switch (rev_id) {
+ case GLAMO_CORE_REV_A2:
+ break;
+ case GLAMO_CORE_REV_A0:
+ case GLAMO_CORE_REV_A1:
+ case GLAMO_CORE_REV_A3:
+ dev_warn(&glamo->pdev->dev, "untested core revision "
+ "%04x, your mileage may vary\n", rev_id);
+ break;
+ default:
+ dev_warn(&glamo->pdev->dev, "unknown glamo revision "
+ "%04x, your mileage may vary\n", rev_id);
+ }
+ break;
+ default:
+ dev_err(&glamo->pdev->dev, "unsupported Glamo device %04x\n",
+ dev_id);
+ return 0;
+ }
+
+ dev_dbg(&glamo->pdev->dev, "Detected Glamo core %04x Revision %04x "
+ "(%uHz CPU / %uHz Memory)\n", dev_id, rev_id,
+ glamo_pll_rate(glamo, GLAMO_PLL1),
+ glamo_pll_rate(glamo, GLAMO_PLL2));
+
+ return 1;
+}
+
+static int __devinit glamo_probe(struct platform_device *pdev)
+{
+ int ret = 0, irq, irq_base;
+ struct glamo_core *glamo;
+ struct resource *mem;
+
+ glamo = kmalloc(GFP_KERNEL, sizeof(*glamo));
+ if (!glamo)
+ return -ENOMEM;
+
+ spin_lock_init(&glamo->lock);
+
+ glamo->pdev = pdev;
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ glamo->irq = platform_get_irq(pdev, 0);
+ glamo->irq_base = irq_base = platform_get_irq(pdev, 1);
+ glamo->pdata = pdev->dev.platform_data;
+
+ if (glamo->irq < 0) {
+ ret = glamo->irq;
+ dev_err(&pdev->dev, "Failed to get platform irq: %d\n", ret);
+ goto err_free;
+ }
+
+ if (irq_base < 0) {
+ ret = glamo->irq;
+ dev_err(&pdev->dev, "Failed to get glamo irq base: %d\n", ret);
+ goto err_free;
+ }
+
+ if (!mem) {
+ dev_err(&pdev->dev, "Failed to get platform memory\n");
+ ret = -ENOENT;
+ goto err_free;
+ }
+
+ if (!glamo->pdata) {
+ dev_err(&pdev->dev, "Missing platform data\n");
+ ret = -ENOENT;
+ goto err_free;
+ }
+
+ /* only request the generic, hostbus and memory controller registers */
+ glamo->mem = request_mem_region(mem->start, GLAMO_REGOFS_VIDCAP,
+ pdev->name);
+
+ if (!glamo->mem) {
+ dev_err(&pdev->dev, "Failed to request io memory region\n");
+ ret = -ENOENT;
+ goto err_free;
+ }
+
+ glamo->base = ioremap(glamo->mem->start, resource_size(glamo->mem));
+ if (!glamo->base) {
+ dev_err(&pdev->dev, "Failed to ioremap() memory region\n");
+ goto err_release_mem_region;
+ }
+
+ /* confirm it isn't insane version */
+ if (!glamo_supported(glamo)) {
+ dev_err(&pdev->dev,
+ "This version of the Glamo is not supported\n");
+ goto err_iounmap;
+ }
+
+ platform_set_drvdata(pdev, glamo);
+
+ /* sysfs */
+ ret = device_create_file(&pdev->dev, &dev_attr_regs);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to create sysfs file\n");
+ goto err_iounmap;
+ }
+
+ /* init the chip with canned register set */
+ glamo_run_script(glamo, glamo_init_script,
+ ARRAY_SIZE(glamo_init_script), 1);
+
+ /*
+ * finally set the mfd interrupts up
+ */
+ for (irq = irq_base; irq < irq_base + GLAMO_NR_IRQS; ++irq) {
+#ifdef CONFIG_ARM
+ set_irq_flags(irq, IRQF_VALID);
+#else
+ set_irq_noprobe(irq);
+#endif
+ set_irq_chip_data(irq, glamo);
+ set_irq_chip_and_handler(irq, &glamo_irq_chip,
+ handle_level_irq);
+ }
+
+ set_irq_type(glamo->irq, IRQ_TYPE_EDGE_FALLING);
+ set_irq_data(glamo->irq, glamo);
+ set_irq_chained_handler(glamo->irq, glamo_irq_demux_handler);
+ glamo->irq_works = 1;
+
+ ret = mfd_add_devices(&pdev->dev, pdev->id, glamo_cells,
+ ARRAY_SIZE(glamo_cells), mem, glamo->irq_base);
+
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to add child devices: %d\n", ret);
+ goto err_free_irqs;
+ }
+
+ dev_info(&glamo->pdev->dev, "Glamo core PLL1: %uHz, PLL2: %uHz\n",
+ glamo_pll_rate(glamo, GLAMO_PLL1),
+ glamo_pll_rate(glamo, GLAMO_PLL2));
+
+ return 0;
+
+err_free_irqs:
+ disable_irq(glamo->irq);
+ set_irq_chained_handler(glamo->irq, NULL);
+ set_irq_chip_data(glamo->irq, NULL);
+
+ for (irq = irq_base; irq < irq_base + GLAMO_NR_IRQS; ++irq) {
+ set_irq_chip(irq, NULL);
+#ifdef CONFIG_ARM
+ set_irq_flags(irq, 0);
+#else
+ set_irq_probe(irq);
+#endif
+ set_irq_chip_data(irq, NULL);
+ }
+err_iounmap:
+ iounmap(glamo->base);
+err_release_mem_region:
+ release_mem_region(glamo->mem->start, resource_size(glamo->mem));
+err_free:
+ platform_set_drvdata(pdev, NULL);
+ kfree(glamo);
+
+ return ret;
+}
+
+static int __devexit glamo_remove(struct platform_device *pdev)
+{
+ struct glamo_core *glamo = platform_get_drvdata(pdev);
+ int irq;
+ int irq_base = glamo->irq_base;
+
+ mfd_remove_devices(&pdev->dev);
+
+ disable_irq(glamo->irq);
+ set_irq_chained_handler(glamo->irq, NULL);
+ set_irq_chip_data(glamo->irq, NULL);
+
+ for (irq = irq_base; irq < irq_base + GLAMO_NR_IRQS; ++irq) {
+#ifdef CONFIG_ARM
+ set_irq_flags(irq, 0);
+#else
+ set_irq_noprobe();
+#endif
+ set_irq_chip(irq, NULL);
+ set_irq_chip_data(irq, NULL);
+ }
+
+ platform_set_drvdata(pdev, NULL);
+ iounmap(glamo->base);
+ release_mem_region(glamo->mem->start, resource_size(glamo->mem));
+ kfree(glamo);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+#if 0
+static struct glamo_script glamo_resume_script[] = {
+
+ { GLAMO_REG_PLL_GEN1, 0x05db }, /* 48MHz */
+ { GLAMO_REG_PLL_GEN3, 0x0aba }, /* 90MHz */
+ { GLAMO_REG_DFT_GEN6, 1 },
+ { 0xfffe, 100 },
+ { 0xfffd, 0 },
+ { 0x200, 0x0e03 },
+
+ /*
+ * b9 of this register MUST be zero to get any interrupts on INT#
+ * the other set bits enable all the engine interrupt sources
+ */
+ { GLAMO_REG_IRQ_ENABLE, 0x01ff },
+ { GLAMO_REG_CLOCK_HOST, 0x0018 },
+ { GLAMO_REG_CLOCK_GEN5_1, 0x18b1 },
+
+ { GLAMO_REG_MEM_DRAM1, 0x0000 },
+ { 0xfffe, 1 },
+ { GLAMO_REG_MEM_DRAM1, 0xc100 },
+ { 0xfffe, 1 },
+ { GLAMO_REG_MEM_DRAM1, 0xe100 },
+ { GLAMO_REG_MEM_DRAM2, 0x01d6 },
+ { GLAMO_REG_CLOCK_MEMORY, 0x000b },
+};
+#endif
+
+#if 0
+static void glamo_power(struct glamo_core *glamo)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&glamo->lock, flags);
+
+ /*
+Power management
+static const REG_VALUE_MASK_TYPE reg_powerOn[] =
+{
+ { REG_GEN_DFT6, REG_BIT_ALL, REG_DATA(1u << 0) },
+ { REG_GEN_PLL3, 0u, REG_DATA(1u << 13) },
+ { REG_GEN_MEM_CLK, REG_BIT_ALL, REG_BIT_EN_MOCACLK },
+ { REG_MEM_DRAM2, 0u, REG_BIT_EN_DEEP_POWER_DOWN },
+ { REG_MEM_DRAM1, 0u, REG_BIT_SELF_REFRESH }
+};
+
+static const REG_VALUE_MASK_TYPE reg_powerStandby[] =
+{
+ { REG_MEM_DRAM1, REG_BIT_ALL, REG_BIT_SELF_REFRESH },
+ { REG_GEN_MEM_CLK, 0u, REG_BIT_EN_MOCACLK },
+ { REG_GEN_PLL3, REG_BIT_ALL, REG_DATA(1u << 13) },
+ { REG_GEN_DFT5, REG_BIT_ALL, REG_DATA(1u << 0) }
+};
+
+static const REG_VALUE_MASK_TYPE reg_powerSuspend[] =
+{
+ { REG_MEM_DRAM2, REG_BIT_ALL, REG_BIT_EN_DEEP_POWER_DOWN },
+ { REG_GEN_MEM_CLK, 0u, REG_BIT_EN_MOCACLK },
+ { REG_GEN_PLL3, REG_BIT_ALL, REG_DATA(1u << 13) },
+ { REG_GEN_DFT5, REG_BIT_ALL, REG_DATA(1u << 0) }
+};
+*/
+ switch (new_state) {
+ case GLAMO_POWER_ON:
+
+ /*
+ * glamo state on resume is nondeterministic in some
+ * fundamental way, it has also been observed that the
+ * Glamo reset pin can get asserted by, eg, touching it with
+ * a scope probe. So the only answer is to roll with it and
+ * force an external reset on the Glamo during resume.
+ */
+
+
+ break;
+
+ case GLAMO_POWER_SUSPEND:
+
+ break;
+ }
+ spin_unlock_irqrestore(&glamo->lock, flags);
+}
+#endif
+
+static int glamo_suspend(struct device *dev)
+{
+ struct glamo_core *glamo = dev_get_drvdata(dev);
+ int n;
+
+ spin_lock(&glamo->lock);
+
+ glamo->saved_irq_mask = __reg_read(glamo, GLAMO_REG_IRQ_ENABLE);
+
+ /* nuke interrupts */
+ __reg_write(glamo, GLAMO_REG_IRQ_ENABLE, 0x200);
+
+ /* take down each engine before we kill mem and pll */
+ for (n = 0; n < __NUM_GLAMO_ENGINES; n++) {
+ if (glamo->engine_state != GLAMO_ENGINE_DISABLED)
+ __glamo_engine_disable(glamo, n);
+ }
+
+ /* enable self-refresh */
+
+ __reg_write(glamo, GLAMO_REG_MEM_DRAM1,
+ GLAMO_MEM_DRAM1_EN_DRAM_REFRESH |
+ GLAMO_MEM_DRAM1_EN_GATE_CKE |
+ GLAMO_MEM_DRAM1_SELF_REFRESH |
+ GLAMO_MEM_REFRESH_COUNT);
+ __reg_write(glamo, GLAMO_REG_MEM_DRAM1,
+ GLAMO_MEM_DRAM1_EN_MODEREG_SET |
+ GLAMO_MEM_DRAM1_EN_DRAM_REFRESH |
+ GLAMO_MEM_DRAM1_EN_GATE_CKE |
+ GLAMO_MEM_DRAM1_SELF_REFRESH |
+ GLAMO_MEM_REFRESH_COUNT);
+
+ /* force RAM into deep powerdown */
+ __reg_write(glamo, GLAMO_REG_MEM_DRAM2,
+ GLAMO_MEM_DRAM2_DEEP_PWRDOWN |
+ (7 << 6) | /* tRC */
+ (1 << 4) | /* tRP */
+ (1 << 2) | /* tRCD */
+ 2); /* CAS latency */
+
+ /* disable clocks to memory */
+ __reg_write(glamo, GLAMO_REG_CLOCK_MEMORY, 0);
+
+ /* all dividers from OSCI */
+ __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_GEN5_1, 0x400, 0x400);
+
+ /* PLL2 into bypass */
+ __reg_set_bit_mask(glamo, GLAMO_REG_PLL_GEN3, 1 << 12, 1 << 12);
+
+ __reg_write(glamo, GLAMO_BASIC_MMC_EN_TCLK_DLYA1, 0x0e00);
+
+ /* kill PLLS 1 then 2 */
+ __reg_write(glamo, GLAMO_REG_DFT_GEN5, 0x0001);
+ __reg_set_bit_mask(glamo, GLAMO_REG_PLL_GEN3, 1 << 13, 1 << 13);
+
+ spin_unlock(&glamo->lock);
+
+ return 0;
+}
+
+static int glamo_resume(struct device *dev)
+{
+ struct glamo_core *glamo = dev_get_drvdata(dev);
+ int n;
+
+ (glamo->pdata->glamo_external_reset)(0);
+ udelay(10);
+ (glamo->pdata->glamo_external_reset)(1);
+ mdelay(5);
+
+ spin_lock(&glamo->lock);
+
+ glamo_run_script(glamo, glamo_init_script,
+ ARRAY_SIZE(glamo_init_script), 0);
+
+
+ for (n = 0; n < __NUM_GLAMO_ENGINES; n++) {
+ switch (glamo->engine_state[n]) {
+ case GLAMO_ENGINE_SUSPENDED:
+ __glamo_engine_suspend(glamo, n);
+ break;
+ case GLAMO_ENGINE_ENABLED:
+ __glamo_engine_enable(glamo, n);
+ break;
+ default:
+ break;
+ }
+ }
+
+ __reg_write(glamo, GLAMO_REG_IRQ_ENABLE, glamo->saved_irq_mask);
+
+ spin_unlock(&glamo->lock);
+
+ return 0;
+}
+
+static struct dev_pm_ops glamo_pm_ops = {
+ .suspend = glamo_suspend,
+ .resume = glamo_resume,
+ .poweroff = glamo_suspend,
+ .restore = glamo_resume,
+};
+
+#define GLAMO_PM_OPS (&glamo_pm_ops)
+
+#else
+#define GLAMO_PM_OPS NULL
+#endif
+
+static struct platform_driver glamo_driver = {
+ .probe = glamo_probe,
+ .remove = __devexit_p(glamo_remove),
+ .driver = {
+ .name = "glamo3362",
+ .owner = THIS_MODULE,
+ .pm = GLAMO_PM_OPS,
+ },
+};
+
+static int __devinit glamo_init(void)
+{
+ return platform_driver_register(&glamo_driver);
+}
+module_init(glamo_init);
+
+static void __exit glamo_exit(void)
+{
+ platform_driver_unregister(&glamo_driver);
+}
+module_exit(glamo_exit);
+
+MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("Smedia Glamo 3362 core/resource driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:glamo3362");
diff --git a/drivers/mfd/glamo/glamo-core.h b/drivers/mfd/glamo/glamo-core.h
new file mode 100644
index 00000000000..17017b03fb5
--- /dev/null
+++ b/drivers/mfd/glamo/glamo-core.h
@@ -0,0 +1,61 @@
+#ifndef __GLAMO_CORE_H
+#define __GLAMO_CORE_H
+
+#include <linux/mfd/glamo.h>
+
+/* for the time being, we put the on-screen framebuffer into the lowest
+ * VRAM space. This should make the code easily compatible with the various
+ * 2MB/4MB/8MB variants of the Smedia chips */
+#define GLAMO_OFFSET_VRAM 0x800000
+#define GLAMO_OFFSET_FB (GLAMO_OFFSET_VRAM)
+
+/* we only allocate the minimum possible size for the framebuffer to make
+ * sure we have sufficient memory for other functions of the chip */
+/*#define GLAMO_FB_SIZE (640*480*4) *//* == 0x12c000 */
+#define GLAMO_INTERNAL_RAM_SIZE 0x800000
+#define GLAMO_MMC_BUFFER_SIZE (64 * 1024)
+#define GLAMO_FB_SIZE (GLAMO_INTERNAL_RAM_SIZE - GLAMO_MMC_BUFFER_SIZE)
+
+enum glamo_pll {
+ GLAMO_PLL1,
+ GLAMO_PLL2,
+};
+
+enum glamo_engine_state {
+ GLAMO_ENGINE_DISABLED,
+ GLAMO_ENGINE_SUSPENDED,
+ GLAMO_ENGINE_ENABLED,
+};
+
+struct glamo_core {
+ int irq;
+ int irq_base;
+ int irq_works; /* 0 means PCB does not support Glamo IRQ */
+ struct resource *mem;
+ void __iomem *base;
+ struct platform_device *pdev;
+ struct glamo_platform_data *pdata;
+ enum glamo_engine_state engine_state[__NUM_GLAMO_ENGINES];
+ spinlock_t lock;
+ uint16_t saved_irq_mask;
+};
+
+struct glamo_script {
+ uint16_t reg;
+ uint16_t val;
+};
+
+int glamo_pll_rate(struct glamo_core *glamo, enum glamo_pll pll);
+
+int glamo_engine_enable(struct glamo_core *glamo, enum glamo_engine engine);
+int glamo_engine_suspend(struct glamo_core *glamo, enum glamo_engine engine);
+int glamo_engine_disable(struct glamo_core *glamo, enum glamo_engine engine);
+void glamo_engine_reset(struct glamo_core *glamo, enum glamo_engine engine);
+int glamo_engine_reclock(struct glamo_core *glamo,
+ enum glamo_engine engine, int ps);
+
+void glamo_reg_read_batch(struct glamo_core *glamo, uint16_t reg,
+ uint16_t count, uint16_t *values);
+void glamo_reg_write_batch(struct glamo_core *glamo, uint16_t reg,
+ uint16_t count, uint16_t *values);
+#endif /* __GLAMO_CORE_H */
diff --git a/drivers/mfd/glamo/glamo-fb.c b/drivers/mfd/glamo/glamo-fb.c
new file mode 100644
index 00000000000..0eac3ac442b
--- /dev/null
+++ b/drivers/mfd/glamo/glamo-fb.c
@@ -0,0 +1,982 @@
+/* Smedia Glamo 336x/337x driver
+ *
+ * (C) 2007-2008 by Openmoko, Inc.
+ * Author: Harald Welte <laforge@openmoko.org>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/console.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/mfd/glamo.h>
+
+#include <asm/div64.h>
+
+#ifdef CONFIG_PM
+#include <linux/pm.h>
+#endif
+
+#include <linux/glamofb.h>
+
+#include "glamo-regs.h"
+#include "glamo-core.h"
+
+static void glamofb_program_mode(struct glamofb_handle *glamo);
+
+struct glamofb_handle {
+ struct glamo_core *core;
+ struct fb_info *fb;
+ struct device *dev;
+ struct resource *reg;
+ struct resource *fb_res;
+ char __iomem *base;
+ struct glamo_fb_platform_data *mach_info;
+ char __iomem *cursor_addr;
+ int cursor_on;
+ u_int32_t pseudo_pal[16];
+ spinlock_t lock_cmd;
+ int blank_mode;
+ int mode_set; /* 0 if the current display mode hasn't been set on the glamo */
+ int output_enabled; /* 0 if the video output is disabled */
+};
+
+static void glamo_output_enable(struct glamofb_handle *gfb)
+{
+ struct glamo_core *gcore = gfb->core;
+
+ if (gfb->output_enabled)
+ return;
+
+ /* enable the pixel clock if off */
+ glamo_engine_enable(gcore, GLAMO_ENGINE_LCD);
+
+ gfb->output_enabled = 1;
+ if (!gfb->mode_set)
+ glamofb_program_mode(gfb);
+}
+
+static void glamo_output_disable(struct glamofb_handle *gfb)
+{
+ struct glamo_core *gcore = gfb->core;
+
+ if (!gfb->output_enabled)
+ return;
+
+ /* enable the pixel clock if off */
+ glamo_engine_suspend(gcore, GLAMO_ENGINE_LCD);
+
+ gfb->output_enabled = 0;
+}
+
+
+static int reg_read(struct glamofb_handle *glamo,
+ u_int16_t reg)
+{
+ int i = 0;
+
+ for (i = 0; i != 2; i++)
+ nop();
+
+ return readw(glamo->base + reg);
+}
+
+static void reg_write(struct glamofb_handle *glamo,
+ uint16_t reg, uint16_t val)
+{
+ int i = 0;
+
+ for (i = 0; i != 2; i++)
+ nop();
+
+ writew(val, glamo->base + reg);
+}
+
+static struct glamo_script glamo_regs[] = {
+ { GLAMO_REG_LCD_MODE1, 0x0020 },
+ /* no display rotation, no hardware cursor, no dither, no gamma,
+ * no retrace flip, vsync low-active, hsync low active,
+ * no TVCLK, no partial display, hw dest color from fb,
+ * no partial display mode, LCD1, software flip, */
+ { GLAMO_REG_LCD_MODE2, 0x9020 },
+ /* video flip, no ptr, no ptr, dhclk off,
+ * normal mode, no cpuif,
+ * res, serial msb first, single fb, no fr ctrl,
+ * cpu if bits all zero, no crc
+ * 0000 0000 0010 0000 */
+ { GLAMO_REG_LCD_MODE3, 0x0b40 },
+ /* src data rgb565, res, 18bit rgb666
+ * 000 01 011 0100 0000 */
+ { GLAMO_REG_LCD_POLARITY, 0x440c },
+ /* DE high active, no cpu/lcd if, cs0 force low, a0 low active,
+ * np cpu if, 9bit serial data, sclk rising edge latch data
+ * 01 00 0 100 0 000 01 0 0 */
+ /* The following values assume 640*480@16bpp */
+ { GLAMO_REG_LCD_A_BASE1, 0x0000 }, /* display A base address 15:0 */
+ { GLAMO_REG_LCD_A_BASE2, 0x0000 }, /* display A base address 22:16 */
+ { GLAMO_REG_LCD_CURSOR_BASE1, 0xC000 }, /* cursor base address 15:0 */
+ { GLAMO_REG_LCD_CURSOR_BASE2, 0x0012 }, /* cursor base address 22:16 */
+ { GLAMO_REG_LCD_COMMAND2, 0x0000 }, /* display page A */
+};
+
+static int glamofb_run_script(struct glamofb_handle *glamo,
+ struct glamo_script *script, int len)
+{
+ int i;
+
+ for (i = 0; i < len; i++) {
+ struct glamo_script *line = &script[i];
+
+ if (line->reg == 0xffff)
+ return 0;
+ else if (line->reg == 0xfffe)
+ msleep(line->val);
+ else
+ reg_write(glamo, script[i].reg, script[i].val);
+ }
+
+ return 0;
+}
+
+static int glamofb_check_var(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ struct glamofb_handle *glamo = info->par;
+
+ if (var->bits_per_pixel != 16)
+ var->bits_per_pixel = 16;
+
+ var->height = glamo->mach_info->height;
+ var->width = glamo->mach_info->width;
+
+ /* FIXME: set rgb positions */
+ switch (var->bits_per_pixel) {
+ case 16:
+ switch (reg_read(glamo, GLAMO_REG_LCD_MODE3) & 0xc000) {
+ case GLAMO_LCD_SRC_RGB565:
+ var->red.offset = 11;
+ var->green.offset = 5;
+ var->blue.offset = 0;
+ var->red.length = 5;
+ var->green.length = 6;
+ var->blue.length = 5;
+ var->transp.length = 0;
+ break;
+ case GLAMO_LCD_SRC_ARGB1555:
+ var->transp.offset = 15;
+ var->red.offset = 10;
+ var->green.offset = 5;
+ var->blue.offset = 0;
+ var->transp.length = 1;
+ var->red.length = 5;
+ var->green.length = 5;
+ var->blue.length = 5;
+ break;
+ case GLAMO_LCD_SRC_ARGB4444:
+ var->transp.offset = 12;
+ var->red.offset = 8;
+ var->green.offset = 4;
+ var->blue.offset = 0;
+ var->transp.length = 4;
+ var->red.length = 4;
+ var->green.length = 4;
+ var->blue.length = 4;
+ break;
+ }
+ break;
+ case 24:
+ case 32:
+ default:
+ /* The Smedia Glamo doesn't support anything but 16bit color */
+ printk(KERN_ERR
+ "Smedia driver does not [yet?] support 24/32bpp\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void reg_set_bit_mask(struct glamofb_handle *glamo,
+ uint16_t reg, uint16_t mask,
+ uint16_t val)
+{
+ u_int16_t tmp;
+
+ val &= mask;
+
+ tmp = reg_read(glamo, reg);
+ tmp &= ~mask;
+ tmp |= val;
+ reg_write(glamo, reg, tmp);
+}
+
+#define GLAMO_LCD_WIDTH_MASK 0x03FF
+#define GLAMO_LCD_HEIGHT_MASK 0x03FF
+#define GLAMO_LCD_PITCH_MASK 0x07FE
+#define GLAMO_LCD_HV_TOTAL_MASK 0x03FF
+#define GLAMO_LCD_HV_RETR_START_MASK 0x03FF
+#define GLAMO_LCD_HV_RETR_END_MASK 0x03FF
+#define GLAMO_LCD_HV_RETR_DISP_START_MASK 0x03FF
+#define GLAMO_LCD_HV_RETR_DISP_END_MASK 0x03FF
+
+/* the caller has to enxure lock_cmd is held and we are in cmd mode */
+static void __rotate_lcd(struct glamofb_handle *glamo, __u32 rotation)
+{
+ int glamo_rot;
+
+ switch (rotation) {
+ case FB_ROTATE_CW:
+ glamo_rot = GLAMO_LCD_ROT_MODE_90;
+ break;
+ case FB_ROTATE_UD:
+ glamo_rot = GLAMO_LCD_ROT_MODE_180;
+ break;
+ case FB_ROTATE_CCW:
+ glamo_rot = GLAMO_LCD_ROT_MODE_270;
+ break;
+ default:
+ glamo_rot = GLAMO_LCD_ROT_MODE_0;
+ break;
+ }
+
+ reg_set_bit_mask(glamo,
+ GLAMO_REG_LCD_WIDTH,
+ GLAMO_LCD_ROT_MODE_MASK,
+ glamo_rot);
+ reg_set_bit_mask(glamo,
+ GLAMO_REG_LCD_MODE1,
+ GLAMO_LCD_MODE1_ROTATE_EN,
+ (glamo_rot != GLAMO_LCD_ROT_MODE_0) ?
+ GLAMO_LCD_MODE1_ROTATE_EN : 0);
+}
+
+static void glamofb_program_mode(struct glamofb_handle *gfb)
+{
+ int sync, bp, disp, fp, total;
+ unsigned long flags;
+ struct glamo_core *gcore = gfb->core;
+ struct fb_var_screeninfo *var = &gfb->fb->var;
+
+ dev_dbg(&gcore->pdev->dev,
+ "glamofb_program_mode spin_lock_irqsave\n");
+ spin_lock_irqsave(&gfb->lock_cmd, flags);
+
+ if (glamofb_cmd_mode(gfb, 1))
+ goto out_unlock;
+
+ if (var->pixclock)
+ glamo_engine_reclock(gcore, GLAMO_ENGINE_LCD,
+ (1000000000UL / gfb->fb->var.pixclock) * 1000);
+
+ reg_set_bit_mask(gfb,
+ GLAMO_REG_LCD_WIDTH,
+ GLAMO_LCD_WIDTH_MASK,
+ var->xres);
+ reg_set_bit_mask(gfb,
+ GLAMO_REG_LCD_HEIGHT,
+ GLAMO_LCD_HEIGHT_MASK,
+ var->yres);
+ reg_set_bit_mask(gfb,
+ GLAMO_REG_LCD_PITCH,
+ GLAMO_LCD_PITCH_MASK,
+ gfb->fb->fix.line_length);
+
+ /* honour the rotation request */
+ __rotate_lcd(gfb, var->rotate);
+
+ /* update scannout timings */
+ sync = 0;
+ bp = sync + var->hsync_len;
+ disp = bp + var->left_margin;
+ fp = disp + var->xres;
+ total = fp + var->right_margin;
+
+ reg_set_bit_mask(gfb, GLAMO_REG_LCD_HORIZ_TOTAL,
+ GLAMO_LCD_HV_TOTAL_MASK, total);
+ reg_set_bit_mask(gfb, GLAMO_REG_LCD_HORIZ_RETR_START,
+ GLAMO_LCD_HV_RETR_START_MASK, sync);
+ reg_set_bit_mask(gfb, GLAMO_REG_LCD_HORIZ_RETR_END,
+ GLAMO_LCD_HV_RETR_END_MASK, bp);
+ reg_set_bit_mask(gfb, GLAMO_REG_LCD_HORIZ_DISP_START,
+ GLAMO_LCD_HV_RETR_DISP_START_MASK, disp);
+ reg_set_bit_mask(gfb, GLAMO_REG_LCD_HORIZ_DISP_END,
+ GLAMO_LCD_HV_RETR_DISP_END_MASK, fp);
+
+ sync = 0;
+ bp = sync + var->vsync_len;
+ disp = bp + var->upper_margin;
+ fp = disp + var->yres;
+ total = fp + var->lower_margin;
+
+ reg_set_bit_mask(gfb, GLAMO_REG_LCD_VERT_TOTAL,
+ GLAMO_LCD_HV_TOTAL_MASK, total);
+ reg_set_bit_mask(gfb, GLAMO_REG_LCD_VERT_RETR_START,
+ GLAMO_LCD_HV_RETR_START_MASK, sync);
+ reg_set_bit_mask(gfb, GLAMO_REG_LCD_VERT_RETR_END,
+ GLAMO_LCD_HV_RETR_END_MASK, bp);
+ reg_set_bit_mask(gfb, GLAMO_REG_LCD_VERT_DISP_START,
+ GLAMO_LCD_HV_RETR_DISP_START_MASK, disp);
+ reg_set_bit_mask(gfb, GLAMO_REG_LCD_VERT_DISP_END,
+ GLAMO_LCD_HV_RETR_DISP_END_MASK, fp);
+
+ glamofb_cmd_mode(gfb, 0);
+
+ gfb->mode_set = 1;
+
+out_unlock:
+ dev_dbg(&gcore->pdev->dev,
+ "glamofb_program_mode spin_unlock_irqrestore\n");
+ spin_unlock_irqrestore(&gfb->lock_cmd, flags);
+}
+
+
+static int glamofb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ return 0;
+}
+
+static struct fb_videomode *glamofb_find_mode(struct fb_info *info,
+ struct fb_var_screeninfo *var)
+{
+ struct glamofb_handle *glamo = info->par;
+ struct glamo_fb_platform_data *pdata = glamo->mach_info;
+ struct fb_videomode *mode;
+ int i;
+
+ for (i = pdata->num_modes, mode = pdata->modes; i; --i, ++mode) {
+ if (mode->xres == var->xres &&
+ mode->yres == var->yres)
+ return mode;
+ }
+
+ return NULL;
+}
+
+static int glamofb_set_par(struct fb_info *info)
+{
+ struct glamofb_handle *glamo = info->par;
+ struct fb_var_screeninfo *var = &info->var;
+ struct fb_videomode *mode;
+
+ mode = glamofb_find_mode(info, var);
+ if (!mode)
+ return -EINVAL;
+
+ fb_videomode_to_var(var, mode);
+
+ info->mode = mode;
+
+ glamo->mode_set = 0;
+
+ switch (var->rotate) {
+ case FB_ROTATE_CW:
+ case FB_ROTATE_CCW:
+ info->fix.line_length = (var->yres * var->bits_per_pixel) / 8;
+ /* FIXME: Limit pixelclock */
+ var->pixclock *= 2;
+ break;
+ default:
+ info->fix.line_length = (var->xres * var->bits_per_pixel) / 8;
+ break;
+ }
+
+ if (glamo->output_enabled)
+ glamofb_program_mode(glamo);
+
+ return 0;
+}
+
+static int glamofb_blank(int blank_mode, struct fb_info *info)
+{
+ struct glamofb_handle *gfb = info->par;
+
+ dev_dbg(gfb->dev, "glamofb_blank(%u)\n", blank_mode);
+
+ switch (blank_mode) {
+ case FB_BLANK_VSYNC_SUSPEND:
+ case FB_BLANK_HSYNC_SUSPEND:
+ /* FIXME: add pdata hook/flag to indicate whether
+ * we should already switch off pixel clock here */
+ break;
+ case FB_BLANK_POWERDOWN:
+ /* disable the pixel clock */
+ glamo_output_disable(gfb);
+ gfb->blank_mode = blank_mode;
+ break;
+ case FB_BLANK_UNBLANK:
+ case FB_BLANK_NORMAL:
+ glamo_output_enable(gfb);
+ gfb->blank_mode = blank_mode;
+ break;
+ }
+
+ /* FIXME: once we have proper clock management in glamo-core,
+ * we can determine if other units need MCLK1 or the PLL, and
+ * disable it if not used. */
+ return 0;
+}
+
+static inline unsigned int chan_to_field(unsigned int chan,
+ struct fb_bitfield *bf)
+{
+ chan &= 0xffff;
+ chan >>= 16 - bf->length;
+ return chan << bf->offset;
+}
+
+static int glamofb_setcolreg(unsigned regno,
+ unsigned red, unsigned green, unsigned blue,
+ unsigned transp, struct fb_info *info)
+{
+ struct glamofb_handle *glamo = info->par;
+ unsigned int val;
+
+ switch (glamo->fb->fix.visual) {
+ case FB_VISUAL_TRUECOLOR:
+ case FB_VISUAL_DIRECTCOLOR:
+ /* true-colour, use pseuo-palette */
+
+ if (regno < 16) {
+ u32 *pal = glamo->fb->pseudo_palette;
+
+ val = chan_to_field(red, &glamo->fb->var.red);
+ val |= chan_to_field(green, &glamo->fb->var.green);
+ val |= chan_to_field(blue, &glamo->fb->var.blue);
+
+ pal[regno] = val;
+ };
+ break;
+ default:
+ return 1; /* unknown type */
+ }
+
+ return 0;
+}
+
+static int glamofb_ioctl(struct fb_info *info, unsigned int cmd,
+ unsigned long arg)
+{
+ struct glamofb_handle *gfb = (struct glamofb_handle *)info->par;
+ struct glamo_core *gcore = gfb->core;
+ int retval = -ENOTTY;
+
+ switch (cmd) {
+ case GLAMOFB_ENGINE_ENABLE:
+ retval = glamo_engine_enable(gcore, arg);
+ break;
+ case GLAMOFB_ENGINE_DISABLE:
+ retval = glamo_engine_disable(gcore, arg);
+ break;
+ case GLAMOFB_ENGINE_RESET:
+ glamo_engine_reset(gcore, arg);
+ retval = 0;
+ break;
+ default:
+ break;
+ }
+
+ return retval;
+}
+
+
+#ifdef CONFIG_MFD_GLAMO_HWACCEL
+static inline void glamofb_vsync_wait(struct glamofb_handle *glamo,
+ int line, int size, int range)
+{
+ int count[2];
+
+ do {
+ count[0] = reg_read(glamo, GLAMO_REG_LCD_STATUS2) & 0x3ff;
+ count[1] = reg_read(glamo, GLAMO_REG_LCD_STATUS2) & 0x3ff;
+ } while (count[0] != count[1] ||
+ (line < count[0] + range &&
+ size > count[0] - range) ||
+ count[0] < range * 2);
+}
+
+/*
+ * Enable/disable the hardware cursor mode altogether
+ * (for blinking and such, use glamofb_cursor()).
+ */
+static void glamofb_cursor_onoff(struct glamofb_handle *glamo, int on)
+{
+ int y, size;
+
+ if (glamo->cursor_on) {
+ y = reg_read(glamo, GLAMO_REG_LCD_CURSOR_Y_POS);
+ size = reg_read(glamo, GLAMO_REG_LCD_CURSOR_Y_SIZE);
+
+ glamofb_vsync_wait(glamo, y, size, 30);
+ }
+
+ reg_set_bit_mask(glamo, GLAMO_REG_LCD_MODE1,
+ GLAMO_LCD_MODE1_CURSOR_EN,
+ on ? GLAMO_LCD_MODE1_CURSOR_EN : 0);
+ glamo->cursor_on = on;
+
+ /* Hide the cursor by default */
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_X_SIZE, 0);
+}
+
+static int glamofb_cursor(struct fb_info *info, struct fb_cursor *cursor)
+{
+ struct glamofb_handle *glamo = info->par;
+ unsigned long flags;
+
+ spin_lock_irqsave(&glamo->lock_cmd, flags);
+
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_X_SIZE,
+ cursor->enable ? cursor->image.width : 0);
+
+ if (cursor->set & FB_CUR_SETPOS) {
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_X_POS,
+ cursor->image.dx);
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_Y_POS,
+ cursor->image.dy);
+ }
+
+ if (cursor->set & FB_CUR_SETCMAP) {
+ uint16_t fg = glamo->pseudo_pal[cursor->image.fg_color];
+ uint16_t bg = glamo->pseudo_pal[cursor->image.bg_color];
+
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_FG_COLOR, fg);
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_BG_COLOR, bg);
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_DST_COLOR, fg);
+ }
+
+ if (cursor->set & FB_CUR_SETHOT)
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_PRESET,
+ (cursor->hot.x << 8) | cursor->hot.y);
+
+ if ((cursor->set & FB_CUR_SETSIZE) ||
+ (cursor->set & (FB_CUR_SETIMAGE | FB_CUR_SETSHAPE))) {
+ int x, y, pitch, op;
+ const uint8_t *pcol = cursor->image.data;
+ const uint8_t *pmsk = cursor->mask;
+ uint8_t __iomem *dst = glamo->cursor_addr;
+ uint8_t dcol = 0;
+ uint8_t dmsk = 0;
+ uint8_t byte = 0;
+
+ if (cursor->image.depth > 1) {
+ spin_unlock_irqrestore(&glamo->lock_cmd, flags);
+ return -EINVAL;
+ }
+
+ pitch = ((cursor->image.width + 7) >> 2) & ~1;
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_PITCH,
+ pitch);
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_Y_SIZE,
+ cursor->image.height);
+
+ for (y = 0; y < cursor->image.height; y++) {
+ byte = 0;
+ for (x = 0; x < cursor->image.width; x++) {
+ if ((x % 8) == 0) {
+ dcol = *pcol++;
+ dmsk = *pmsk++;
+ } else {
+ dcol >>= 1;
+ dmsk >>= 1;
+ }
+
+ if (cursor->rop == ROP_COPY)
+ op = (dmsk & 1) ?
+ (dcol & 1) ? 1 : 3 : 0;
+ else
+ op = ((dmsk & 1) << 1) |
+ ((dcol & 1) << 0);
+ byte |= op << ((x & 3) << 1);
+
+ if (x % 4 == 3) {
+ writeb(byte, dst + x / 4);
+ byte = 0;
+ }
+ }
+ if (x % 4) {
+ writeb(byte, dst + x / 4);
+ byte = 0;
+ }
+
+ dst += pitch;
+ }
+ }
+
+ spin_unlock_irqrestore(&glamo->lock_cmd, flags);
+
+ return 0;
+}
+#endif
+
+static inline int glamofb_cmdq_empty(struct glamofb_handle *gfb)
+{
+ /* DGCMdQempty -- 1 == command queue is empty */
+ return reg_read(gfb, GLAMO_REG_LCD_STATUS1) & (1 << 15);
+}
+
+/* call holding gfb->lock_cmd when locking, until you unlock */
+int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
+{
+ int timeout = 2000000;
+
+ dev_dbg(gfb->dev, "glamofb_cmd_mode(gfb=%p, on=%d)\n", gfb, on);
+ if (on) {
+ dev_dbg(gfb->dev, "%s: waiting for cmdq empty: ",
+ __func__);
+ while (!glamofb_cmdq_empty(gfb) && (timeout--))
+ cpu_relax();
+ if (timeout < 0) {
+ printk(KERN_ERR "glamofb cmd_queue never got empty\n");
+ return -EIO;
+ }
+ dev_dbg(gfb->dev, "empty!\n");
+
+ /* display the entire frame then switch to command */
+ reg_write(gfb, GLAMO_REG_LCD_COMMAND1,
+ GLAMO_LCD_CMD_TYPE_DISP |
+ GLAMO_LCD_CMD_DATA_FIRE_VSYNC);
+
+ /* wait until lcd idle */
+ dev_dbg(gfb->dev, "waiting for lcd idle: ");
+ timeout = 2000000;
+ while (!(reg_read(gfb, GLAMO_REG_LCD_STATUS2) & (1 << 12)) &&
+ (timeout--))
+ cpu_relax();
+ if (timeout < 0) {
+ printk(KERN_ERR"*************"
+ "glamofb lcd never idle"
+ "*************\n");
+ return -EIO;
+ }
+
+ mdelay(100);
+
+ dev_dbg(gfb->dev, "cmd mode entered\n");
+
+ } else {
+ /* RGB interface needs vsync/hsync */
+ if (reg_read(gfb, GLAMO_REG_LCD_MODE3) & GLAMO_LCD_MODE3_RGB)
+ reg_write(gfb, GLAMO_REG_LCD_COMMAND1,
+ GLAMO_LCD_CMD_TYPE_DISP |
+ GLAMO_LCD_CMD_DATA_DISP_SYNC);
+
+ reg_write(gfb, GLAMO_REG_LCD_COMMAND1,
+ GLAMO_LCD_CMD_TYPE_DISP |
+ GLAMO_LCD_CMD_DATA_DISP_FIRE);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(glamofb_cmd_mode);
+
+
+int glamofb_cmd_write(struct glamofb_handle *gfb, u_int16_t val)
+{
+ int timeout = 200000;
+
+ dev_dbg(gfb->dev, "%s: waiting for cmdq empty\n", __func__);
+ while ((!glamofb_cmdq_empty(gfb)) && (timeout--))
+ yield();
+ if (timeout < 0) {
+ printk(KERN_ERR"*************"
+ "glamofb cmd_queue never got empty"
+ "*************\n");
+ return 1;
+ }
+ dev_dbg(gfb->dev, "idle, writing 0x%04x\n", val);
+
+ reg_write(gfb, GLAMO_REG_LCD_COMMAND1, val);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(glamofb_cmd_write);
+
+static struct fb_ops glamofb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = glamofb_check_var,
+ .fb_pan_display = glamofb_pan_display,
+ .fb_set_par = glamofb_set_par,
+ .fb_blank = glamofb_blank,
+ .fb_setcolreg = glamofb_setcolreg,
+ .fb_ioctl = glamofb_ioctl,
+#ifdef CONFIG_MFD_GLAMO_HWACCEL
+ .fb_cursor = glamofb_cursor,
+#endif
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+};
+
+static int glamofb_init_regs(struct glamofb_handle *glamo)
+{
+ struct fb_info *info = glamo->fb;
+
+ glamofb_check_var(&info->var, info);
+ glamofb_run_script(glamo, glamo_regs, ARRAY_SIZE(glamo_regs));
+ glamofb_set_par(info);
+
+ return 0;
+}
+
+static int __init glamofb_probe(struct platform_device *pdev)
+{
+ int rc = -EIO;
+ struct fb_info *fbinfo;
+ struct glamofb_handle *glamofb;
+ struct glamo_core *core = dev_get_drvdata(pdev->dev.parent);
+ struct glamo_fb_platform_data *mach_info;
+
+ printk(KERN_INFO "SMEDIA Glamo frame buffer driver (C) 2007 "
+ "Openmoko, Inc.\n");
+
+ if (!core->pdata || !core->pdata->fb_data)
+ return -ENOENT;
+
+
+ fbinfo = framebuffer_alloc(sizeof(struct glamofb_handle), &pdev->dev);
+ if (!fbinfo)
+ return -ENOMEM;
+
+
+ glamofb = fbinfo->par;
+ glamofb->fb = fbinfo;
+ glamofb->dev = &pdev->dev;
+
+ glamofb->blank_mode = FB_BLANK_POWERDOWN;
+
+ strcpy(fbinfo->fix.id, "SMedia Glamo");
+
+ glamofb->reg = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ "glamo-fb-regs");
+ if (!glamofb->reg) {
+ dev_err(&pdev->dev, "platform device with no registers?\n");
+ rc = -ENOENT;
+ goto out_free;
+ }
+
+ glamofb->fb_res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ "glamo-fb-mem");
+ if (!glamofb->fb_res) {
+ dev_err(&pdev->dev, "platform device with no memory ?\n");
+ rc = -ENOENT;
+ goto out_free;
+ }
+
+ glamofb->reg = request_mem_region(glamofb->reg->start,
+ resource_size(glamofb->reg),
+ pdev->name);
+ if (!glamofb->reg) {
+ dev_err(&pdev->dev, "failed to request mmio region\n");
+ goto out_free;
+ }
+
+ glamofb->fb_res = request_mem_region(glamofb->fb_res->start,
+ resource_size(glamofb->fb_res),
+ pdev->name);
+ if (!glamofb->fb_res) {
+ dev_err(&pdev->dev, "failed to request vram region\n");
+ goto out_release_reg;
+ }
+
+ /* we want to remap only the registers required for this core
+ * driver. */
+ glamofb->base = ioremap_nocache(glamofb->reg->start,
+ resource_size(glamofb->reg));
+ if (!glamofb->base) {
+ dev_err(&pdev->dev, "failed to ioremap() mmio memory\n");
+ goto out_release_fb;
+ }
+
+ fbinfo->fix.smem_start = (unsigned long) glamofb->fb_res->start;
+ fbinfo->fix.smem_len = (__u32) resource_size(glamofb->fb_res);
+
+ fbinfo->screen_base = ioremap(glamofb->fb_res->start,
+ resource_size(glamofb->fb_res));
+ if (!fbinfo->screen_base) {
+ dev_err(&pdev->dev, "failed to ioremap() vram memory\n");
+ goto out_release_fb;
+ }
+ glamofb->cursor_addr = fbinfo->screen_base + 0x12C000;
+
+ platform_set_drvdata(pdev, glamofb);
+
+ mach_info = core->pdata->fb_data;
+ glamofb->core = core;
+ glamofb->mach_info = mach_info;
+
+ fbinfo->fix.visual = FB_VISUAL_TRUECOLOR;
+ fbinfo->fix.type = FB_TYPE_PACKED_PIXELS;
+ fbinfo->fix.type_aux = 0;
+ fbinfo->fix.xpanstep = 0;
+ fbinfo->fix.ypanstep = 0;
+ fbinfo->fix.ywrapstep = 0;
+ fbinfo->fix.accel = FB_ACCEL_GLAMO;
+
+
+ fbinfo->fbops = &glamofb_ops;
+ fbinfo->flags = FBINFO_FLAG_DEFAULT;
+ fbinfo->pseudo_palette = &glamofb->pseudo_pal;
+
+ fbinfo->mode = mach_info->modes;
+ fb_videomode_to_var(&fbinfo->var, fbinfo->mode);
+ fbinfo->var.bits_per_pixel = 16;
+ fbinfo->var.nonstd = 0;
+ fbinfo->var.activate = FB_ACTIVATE_NOW;
+ fbinfo->var.height = mach_info->height;
+ fbinfo->var.width = mach_info->width;
+ fbinfo->var.accel_flags = 0;
+ fbinfo->var.vmode = FB_VMODE_NONINTERLACED;
+
+ glamo_engine_enable(core, GLAMO_ENGINE_LCD);
+ glamo_engine_reset(core, GLAMO_ENGINE_LCD);
+ glamofb->output_enabled = 1;
+ glamofb->mode_set = 1;
+
+ dev_info(&pdev->dev, "spin_lock_init\n");
+ spin_lock_init(&glamofb->lock_cmd);
+ glamofb_init_regs(glamofb);
+#ifdef CONFIG_MFD_GLAMO_HWACCEL
+ glamofb_cursor_onoff(glamofb, 1);
+#endif
+
+ fb_videomode_to_modelist(mach_info->modes, mach_info->num_modes,
+ &fbinfo->modelist);
+
+ rc = register_framebuffer(fbinfo);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "failed to register framebuffer\n");
+ goto out_unmap_fb;
+ }
+
+ printk(KERN_INFO "fb%d: %s frame buffer device\n",
+ fbinfo->node, fbinfo->fix.id);
+
+ return 0;
+
+out_unmap_fb:
+ iounmap(fbinfo->screen_base);
+ iounmap(glamofb->base);
+out_release_fb:
+ release_mem_region(glamofb->fb_res->start,
+ resource_size(glamofb->fb_res));
+out_release_reg:
+ release_mem_region(glamofb->reg->start,
+ resource_size(glamofb->reg));
+out_free:
+ framebuffer_release(fbinfo);
+ return rc;
+}
+
+static int glamofb_remove(struct platform_device *pdev)
+{
+ struct glamofb_handle *glamofb = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ iounmap(glamofb->base);
+ release_mem_region(glamofb->reg->start, resource_size(glamofb->reg));
+
+ framebuffer_release(glamofb->fb);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+
+static int glamofb_suspend(struct device *dev)
+{
+ struct glamofb_handle *gfb = dev_get_drvdata(dev);
+
+ acquire_console_sem();
+ fb_set_suspend(gfb->fb, 1);
+ release_console_sem();
+
+ /* seriously -- nobody is allowed to touch glamo memory when we
+ * are suspended or we lock on nWAIT
+ */
+ /* iounmap(gfb->fb->screen_base); */
+
+ return 0;
+}
+
+static int glamofb_resume(struct device *dev)
+{
+ struct glamofb_handle *gfb = dev_get_drvdata(dev);
+
+ /* OK let's allow framebuffer ops again */
+ /* gfb->fb->screen_base = ioremap(gfb->fb_res->start,
+ resource_size(gfb->fb_res)); */
+ glamo_engine_enable(gfb->core, GLAMO_ENGINE_LCD);
+ glamo_engine_reset(gfb->core, GLAMO_ENGINE_LCD);
+
+ glamofb_init_regs(gfb);
+#ifdef CONFIG_MFD_GLAMO_HWACCEL
+ glamofb_cursor_onoff(gfb, 1);
+#endif
+
+ acquire_console_sem();
+ fb_set_suspend(gfb->fb, 0);
+ release_console_sem();
+
+ return 0;
+}
+
+static struct dev_pm_ops glamofb_pm_ops = {
+ .suspend = glamofb_suspend,
+ .resume = glamofb_resume,
+};
+
+#define GLAMOFB_PM_OPS (&glamofb_pm_ops)
+
+#else
+#define GLAMOFB_PM_OPS NULL
+#endif
+
+static struct platform_driver glamofb_driver = {
+ .probe = glamofb_probe,
+ .remove = glamofb_remove,
+ .driver = {
+ .name = "glamo-fb",
+ .owner = THIS_MODULE,
+ .pm = GLAMOFB_PM_OPS
+ },
+};
+
+static int __devinit glamofb_init(void)
+{
+ return platform_driver_register(&glamofb_driver);
+}
+
+static void __exit glamofb_cleanup(void)
+{
+ platform_driver_unregister(&glamofb_driver);
+}
+
+module_init(glamofb_init);
+module_exit(glamofb_cleanup);
+
+MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
+MODULE_DESCRIPTION("Smedia Glamo 336x/337x framebuffer driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/glamo/glamo-gpio.c b/drivers/mfd/glamo/glamo-gpio.c
new file mode 100644
index 00000000000..30ee6ed1d9a
--- /dev/null
+++ b/drivers/mfd/glamo/glamo-gpio.c
@@ -0,0 +1,285 @@
+/* Smedia Glamo 336x/337x gpio driver
+ *
+ * (C) 2009 Lars-Peter Clausen
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <linux/io.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+
+#include <linux/gpio.h>
+#include <linux/mfd/glamo.h>
+
+#include "glamo-core.h"
+#include "glamo-regs.h"
+
+#define GLAMO_NR_GPIO 21
+#define GLAMO_NR_GPIO_REGS DIV_ROUND_UP(GLAMO_NR_GPIO, 4)
+
+#define GLAMO_REG_GPIO(x) (((x) * 2) + GLAMO_REG_GPIO_GEN1)
+
+struct glamo_gpio {
+ struct glamo_core *glamo;
+ struct gpio_chip chip;
+ uint16_t saved_regs[GLAMO_NR_GPIO_REGS];
+};
+
+#define REG_OF_GPIO(gpio) (GLAMO_REG_GPIO(gpio >> 2))
+#define NUM_OF_GPIO(gpio) (gpio & 0x3)
+#define DIRECTION_BIT(gpio) (1 << (NUM_OF_GPIO(gpio) + 0))
+#define OUTPUT_BIT(gpio) (1 << (NUM_OF_GPIO(gpio) + 4))
+#define INPUT_BIT(gpio) (1 << (NUM_OF_GPIO(gpio) + 8))
+#define FUNC_BIT(gpio) (1 << (NUM_OF_GPIO(gpio) + 12))
+
+
+static inline struct glamo_core *chip_to_glamo(struct gpio_chip *chip)
+{
+ return container_of(chip, struct glamo_gpio, chip)->glamo;
+}
+
+static void glamo_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+ struct glamo_core *glamo = chip_to_glamo(chip);
+ unsigned int reg = REG_OF_GPIO(offset);
+ u_int16_t tmp;
+
+ spin_lock(&glamo->lock);
+ tmp = readw(glamo->base + reg);
+ if (value)
+ tmp |= OUTPUT_BIT(offset);
+ else
+ tmp &= ~OUTPUT_BIT(offset);
+ writew(tmp, glamo->base + reg);
+ spin_unlock(&glamo->lock);
+}
+
+static int glamo_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+ struct glamo_core *glamo = chip_to_glamo(chip);
+ return !!(readw(glamo->base + REG_OF_GPIO(offset)) & INPUT_BIT(offset));
+}
+
+static int glamo_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+ struct glamo_core *glamo = chip_to_glamo(chip);
+ unsigned int reg = REG_OF_GPIO(offset);
+ u_int16_t tmp;
+
+ spin_lock(&glamo->lock);
+ tmp = readw(glamo->base + reg);
+ if ((tmp & FUNC_BIT(offset)) == 0) {
+ tmp |= FUNC_BIT(offset);
+ writew(tmp, glamo->base + reg);
+ }
+ spin_unlock(&glamo->lock);
+
+ return 0;
+}
+
+static void glamo_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+ struct glamo_core *glamo = chip_to_glamo(chip);
+ unsigned int reg = REG_OF_GPIO(offset);
+ u_int16_t tmp;
+
+ spin_lock(&glamo->lock);
+ tmp = readw(glamo->base + reg);
+ if ((tmp & FUNC_BIT(offset)) == 1) {
+ tmp &= ~FUNC_BIT(offset);
+ writew(tmp, glamo->base + reg);
+ }
+ spin_unlock(&glamo->lock);
+}
+
+static int glamo_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ struct glamo_core *glamo = chip_to_glamo(chip);
+ unsigned int reg = REG_OF_GPIO(offset);
+ u_int16_t tmp;
+
+ spin_lock(&glamo->lock);
+ tmp = readw(glamo->base + reg);
+ tmp &= ~DIRECTION_BIT(offset);
+
+ if (value)
+ tmp |= OUTPUT_BIT(offset);
+ else
+ tmp &= ~OUTPUT_BIT(offset);
+
+ writew(tmp, glamo->base + reg);
+ spin_unlock(&glamo->lock);
+
+ return 0;
+}
+
+static int glamo_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+ struct glamo_core *glamo = chip_to_glamo(chip);
+ unsigned int reg = REG_OF_GPIO(offset);
+ u_int16_t tmp;
+
+ spin_lock(&glamo->lock);
+ tmp = readw(glamo->base + reg);
+ if ((tmp & DIRECTION_BIT(offset)) == 0) {
+ tmp |= DIRECTION_BIT(offset);
+ writew(tmp, glamo->base + reg);
+ }
+ spin_unlock(&glamo->lock);
+
+ return 0;
+}
+
+static const struct __devinit gpio_chip glamo_gpio_chip = {
+ .label = "glamo",
+ .request = glamo_gpio_request,
+ .free = glamo_gpio_free,
+ .direction_input = glamo_gpio_direction_input,
+ .get = glamo_gpio_get,
+ .direction_output = glamo_gpio_direction_output,
+ .set = glamo_gpio_set,
+ .base = -1,
+ .ngpio = GLAMO_NR_GPIO,
+ .can_sleep = 0,
+ .owner = THIS_MODULE,
+};
+
+static int __devinit glamo_gpio_probe(struct platform_device *pdev)
+{
+ struct glamo_platform_data *pdata = pdev->dev.parent->platform_data;
+ struct glamo_gpio *glamo_gpio;
+ int ret;
+
+ glamo_gpio = kzalloc(sizeof(struct glamo_gpio), GFP_KERNEL);
+ if (!glamo_gpio)
+ return -ENOMEM;
+
+ glamo_gpio->glamo = dev_get_drvdata(pdev->dev.parent);
+ glamo_gpio->chip = glamo_gpio_chip;
+ glamo_gpio->chip.dev = &pdev->dev;
+ if (pdata && pdata->gpio_data)
+ glamo_gpio->chip.base = pdata->gpio_data->base;
+
+ ret = gpiochip_add(&glamo_gpio->chip);
+
+ if (ret) {
+ dev_err(&pdev->dev, "Could not register gpio chip: %d\n", ret);
+ goto err;
+ }
+
+ platform_set_drvdata(pdev, glamo_gpio);
+
+ if (pdata && pdata->gpio_data && pdata->gpio_data->registered)
+ pdata->gpio_data->registered(&pdev->dev);
+
+ return 0;
+err:
+ kfree(glamo_gpio);
+ return ret;
+}
+
+static int __devexit glamo_gpio_remove(struct platform_device *pdev)
+{
+ struct glamo_gpio *glamo_gpio = platform_get_drvdata(pdev);
+ int ret;
+
+ ret = gpiochip_remove(&glamo_gpio->chip);
+ if (!ret)
+ goto done;
+
+ platform_set_drvdata(pdev, NULL);
+ kfree(glamo_gpio);
+
+done:
+ return ret;
+}
+
+#ifdef CONFIG_PM
+
+static int glamo_gpio_suspend(struct device *dev)
+{
+ struct glamo_gpio *glamo_gpio = dev_get_drvdata(dev);
+ struct glamo_core *glamo = glamo_gpio->glamo;
+ uint16_t *saved_regs = glamo_gpio->saved_regs;
+ int i;
+
+ spin_lock(&glamo->lock);
+ for (i = 0; i < GLAMO_NR_GPIO / 4; ++i)
+ saved_regs[i] = readw(glamo->base + GLAMO_REG_GPIO(i));
+ spin_unlock(&glamo->lock);
+
+ return 0;
+}
+
+static int glamo_gpio_resume(struct device *dev)
+{
+ struct glamo_gpio *glamo_gpio = dev_get_drvdata(dev);
+ struct glamo_core *glamo = glamo_gpio->glamo;
+ uint16_t *saved_regs = glamo_gpio->saved_regs;
+ int i;
+
+ spin_lock(&glamo->lock);
+ for (i = 0; i < GLAMO_NR_GPIO_REGS; ++i)
+ writew(saved_regs[i], glamo->base + GLAMO_REG_GPIO(i));
+ spin_unlock(&glamo->lock);
+ return 0;
+}
+
+static const struct dev_pm_ops glamo_pm_ops = {
+ .suspend = glamo_gpio_suspend,
+ .resume = glamo_gpio_resume,
+ .freeze = glamo_gpio_suspend,
+ .thaw = glamo_gpio_resume,
+};
+
+#define GLAMO_GPIO_PM_OPS (&glamo_pm_ops)
+
+#else
+#define GLAMO_GPIO_PM_OPS NULL
+#endif
+
+static struct platform_driver glamo_gpio_driver = {
+ .driver = {
+ .name = "glamo-gpio",
+ .owner = THIS_MODULE,
+ .pm = GLAMO_GPIO_PM_OPS,
+ },
+ .probe = glamo_gpio_probe,
+ .remove = __devexit_p(glamo_gpio_remove),
+};
+
+static int __devinit glamo_gpio_init(void)
+{
+ return platform_driver_register(&glamo_gpio_driver);
+}
+module_init(glamo_gpio_init);
+
+static void __exit glamo_gpio_exit(void)
+{
+ platform_driver_unregister(&glamo_gpio_driver);
+}
+module_exit(glamo_gpio_exit);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("GPIO interface for the Glamo multimedia device");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:glamo-gpio");
diff --git a/drivers/mfd/glamo/glamo-mci.c b/drivers/mfd/glamo/glamo-mci.c
new file mode 100644
index 00000000000..f49fa7167aa
--- /dev/null
+++ b/drivers/mfd/glamo/glamo-mci.c
@@ -0,0 +1,1023 @@
+/*
+ * linux/drivers/mmc/host/glamo-mmc.c - Glamo MMC driver
+ *
+ * Copyright (C) 2007 Openmoko, Inc, Andy Green <andy@openmoko.com>
+ * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
+ * Based on S3C MMC driver that was:
+ * Copyright (C) 2004-2006 maintech GmbH, Thomas Kleffel <tk@maintech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/mmc/mmc.h>
+#include <linux/mmc/sd.h>
+#include <linux/mmc/host.h>
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/workqueue.h>
+#include <linux/crc7.h>
+#include <linux/scatterlist.h>
+#include <linux/io.h>
+#include <linux/regulator/consumer.h>
+#include <linux/err.h>
+#include <linux/mfd/glamo.h>
+
+#include "glamo-core.h"
+#include "glamo-regs.h"
+
+struct glamo_mci_host {
+ struct glamo_mmc_platform_data *pdata;
+ struct platform_device *pdev;
+ struct glamo_core *core;
+ struct mmc_host *mmc;
+ struct resource *mmio_mem;
+ struct resource *data_mem;
+ void __iomem *mmio_base;
+ uint16_t __iomem *data_base;
+
+ unsigned int irq;
+
+ struct regulator *regulator;
+ struct mmc_request *mrq;
+
+ unsigned int clk_rate;
+
+ unsigned short vdd;
+ char power_mode;
+
+ unsigned char request_counter;
+
+ struct timer_list disable_timer;
+
+ struct work_struct irq_work;
+ struct work_struct read_work;
+
+ unsigned clk_enabled:1;
+};
+
+static void glamo_mci_send_request(struct mmc_host *mmc,
+ struct mmc_request *mrq);
+static void glamo_mci_send_command(struct glamo_mci_host *host,
+ struct mmc_command *cmd);
+
+/*
+ * Max SD clock rate
+ *
+ * held at /(3 + 1) due to concerns of 100R recommended series resistor
+ * allows 16MHz @ 4-bit --> 8MBytes/sec raw
+ *
+ * you can override this on kernel commandline using
+ *
+ * glamo_mci.sd_max_clk=10000000
+ *
+ * for example
+ */
+
+static int sd_max_clk = 21000000;
+module_param(sd_max_clk, int, 0644);
+
+/*
+ * Slow SD clock rate
+ *
+ * you can override this on kernel commandline using
+ *
+ * glamo_mci.sd_slow_ratio=8
+ *
+ * for example
+ *
+ * platform callback is used to decide effective clock rate, if not
+ * defined then max is used, if defined and returns nonzero, rate is
+ * divided by this factor
+ */
+
+static int sd_slow_ratio = 8;
+module_param(sd_slow_ratio, int, 0644);
+
+/*
+ * Post-power SD clock rate
+ *
+ * you can override this on kernel commandline using
+ *
+ * glamo_mci.sd_post_power_clock=1000000
+ *
+ * for example
+ *
+ * After changing power to card, clock is held at this rate until first bulk
+ * transfer completes
+ */
+
+static int sd_post_power_clock = 1000000;
+module_param(sd_post_power_clock, int, 0644);
+
+
+static inline void glamo_reg_write(struct glamo_mci_host *glamo,
+ uint16_t reg, uint16_t val)
+{
+ writew(val, glamo->mmio_base + reg);
+}
+
+static inline uint16_t glamo_reg_read(struct glamo_mci_host *glamo,
+ uint16_t reg)
+{
+ return readw(glamo->mmio_base + reg);
+}
+
+static void glamo_reg_set_bit_mask(struct glamo_mci_host *glamo,
+ uint16_t reg, uint16_t mask,
+ uint16_t val)
+{
+ uint16_t tmp;
+
+ val &= mask;
+
+ tmp = glamo_reg_read(glamo, reg);
+ tmp &= ~mask;
+ tmp |= val;
+ glamo_reg_write(glamo, reg, tmp);
+}
+
+static void glamo_mci_reset(struct glamo_mci_host *host)
+{
+ glamo_engine_reset(host->core, GLAMO_ENGINE_MMC);
+
+ glamo_reg_write(host, GLAMO_REG_MMC_WDATADS1,
+ (uint16_t)(host->data_mem->start));
+ glamo_reg_write(host, GLAMO_REG_MMC_WDATADS2,
+ (uint16_t)(host->data_mem->start >> 16));
+
+ glamo_reg_write(host, GLAMO_REG_MMC_RDATADS1,
+ (uint16_t)(host->data_mem->start));
+ glamo_reg_write(host, GLAMO_REG_MMC_RDATADS2,
+ (uint16_t)(host->data_mem->start >> 16));
+
+}
+
+static void glamo_mci_clock_disable(struct glamo_mci_host *host)
+{
+ glamo_engine_suspend(host->core, GLAMO_ENGINE_MMC);
+}
+
+static void glamo_mci_clock_enable(struct glamo_mci_host *host)
+{
+ del_timer_sync(&host->disable_timer);
+
+ glamo_engine_enable(host->core, GLAMO_ENGINE_MMC);
+}
+
+static void glamo_mci_disable_timer(unsigned long data)
+{
+ struct glamo_mci_host *host = (struct glamo_mci_host *)data;
+ glamo_mci_clock_disable(host);
+}
+
+
+static void do_pio_read(struct glamo_mci_host *host, struct mmc_data *data)
+{
+ struct sg_mapping_iter miter;
+ uint16_t __iomem *from_ptr = host->data_base;
+
+ dev_dbg(&host->pdev->dev, "pio_read():\n");
+
+ sg_miter_start(&miter, data->sg, data->sg_len, SG_MITER_TO_SG);
+
+ while (sg_miter_next(&miter)) {
+ memcpy(miter.addr, from_ptr, miter.length);
+ from_ptr += miter.length >> 1;
+
+ data->bytes_xfered += miter.length;
+ }
+
+ sg_miter_stop(&miter);
+
+ dev_dbg(&host->pdev->dev, "pio_read(): "
+ "complete (no more data).\n");
+}
+
+static void do_pio_write(struct glamo_mci_host *host, struct mmc_data *data)
+{
+ struct sg_mapping_iter miter;
+ uint16_t __iomem *to_ptr = host->data_base;
+
+ dev_dbg(&host->pdev->dev, "pio_write():\n");
+ sg_miter_start(&miter, data->sg, data->sg_len, SG_MITER_FROM_SG);
+
+ while (sg_miter_next(&miter)) {
+ memcpy(to_ptr, miter.addr, miter.length);
+ to_ptr += miter.length >> 1;
+
+ data->bytes_xfered += miter.length;
+ }
+
+ sg_miter_stop(&miter);
+ dev_dbg(&host->pdev->dev, "pio_write(): complete\n");
+}
+
+static int glamo_mci_set_card_clock(struct glamo_mci_host *host, int freq)
+{
+ int real_rate = 0;
+
+ if (freq) {
+ glamo_mci_clock_enable(host);
+ real_rate = glamo_engine_reclock(host->core, GLAMO_ENGINE_MMC,
+ freq);
+ } else {
+ glamo_mci_clock_disable(host);
+ }
+
+ return real_rate;
+}
+
+static int glamo_mci_wait_idle(struct glamo_mci_host *host,
+ unsigned long timeout)
+{
+ uint16_t status;
+ do {
+ status = glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1);
+ } while (!(status & GLAMO_STAT1_MMC_IDLE) &&
+ time_is_after_jiffies(timeout));
+
+ if (time_is_before_eq_jiffies(timeout)) {
+ glamo_mci_reset(host);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static void glamo_mci_request_done(struct glamo_mci_host *host, struct
+mmc_request *mrq)
+{
+ mod_timer(&host->disable_timer, jiffies + HZ / 16);
+ mmc_request_done(host->mmc, mrq);
+}
+
+
+static void glamo_mci_irq_worker(struct work_struct *work)
+{
+ struct glamo_mci_host *host = container_of(work, struct glamo_mci_host,
+ irq_work);
+ struct mmc_request *mrq;
+ struct mmc_command *cmd;
+ uint16_t status;
+
+ if (!host->mrq || !host->mrq->cmd)
+ return;
+
+ mrq = host->mrq;
+ cmd = mrq->cmd;
+
+#if 0
+ if (cmd->data->flags & MMC_DATA_READ)
+ return;
+#endif
+
+ status = glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1);
+ dev_dbg(&host->pdev->dev, "status = 0x%04x\n", status);
+
+ /* we ignore a data timeout report if we are also told the data came */
+ if (status & GLAMO_STAT1_MMC_RB_DRDY)
+ status &= ~GLAMO_STAT1_MMC_DTOUT;
+
+ if (status & (GLAMO_STAT1_MMC_RTOUT | GLAMO_STAT1_MMC_DTOUT))
+ cmd->error = -ETIMEDOUT;
+ else if (status & (GLAMO_STAT1_MMC_BWERR | GLAMO_STAT1_MMC_BRERR))
+ cmd->error = -EILSEQ;
+
+ if (cmd->error) {
+ dev_info(&host->pdev->dev, "Error after cmd: 0x%x\n", status);
+ goto done;
+ }
+
+ /* issue STOP if we have been given one to use */
+ if (mrq->stop)
+ glamo_mci_send_command(host, mrq->stop);
+
+ if (cmd->data->flags & MMC_DATA_READ)
+ do_pio_read(host, cmd->data);
+
+ if (mrq->stop)
+ mrq->stop->error = glamo_mci_wait_idle(host, jiffies + HZ);
+
+done:
+ host->mrq = NULL;
+ glamo_mci_request_done(host, cmd->mrq);
+}
+
+static void glamo_mci_read_worker(struct work_struct *work)
+{
+ struct glamo_mci_host *host = container_of(work, struct glamo_mci_host,
+ read_work);
+ struct mmc_command *cmd;
+ uint16_t status;
+ uint16_t blocks_ready;
+ size_t data_read = 0;
+ size_t data_ready;
+ struct scatterlist *sg;
+ uint16_t __iomem *from_ptr = host->data_base;
+ void *sg_pointer;
+
+
+ cmd = host->mrq->cmd;
+ sg = cmd->data->sg;
+ do {
+ status = glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1);
+
+ if (status & (GLAMO_STAT1_MMC_RTOUT | GLAMO_STAT1_MMC_DTOUT))
+ cmd->error = -ETIMEDOUT;
+ if (status & (GLAMO_STAT1_MMC_BWERR | GLAMO_STAT1_MMC_BRERR))
+ cmd->error = -EILSEQ;
+ if (cmd->error) {
+ dev_info(&host->pdev->dev, "Error after cmd: 0x%x\n",
+ status);
+ goto done;
+ }
+
+ blocks_ready = glamo_reg_read(host, GLAMO_REG_MMC_RB_BLKCNT);
+ data_ready = blocks_ready * cmd->data->blksz;
+
+ if (data_ready == data_read)
+ yield();
+
+ while (sg && data_read + sg->length <= data_ready) {
+ sg_pointer = page_address(sg_page(sg)) + sg->offset;
+ memcpy(sg_pointer, from_ptr, sg->length);
+ from_ptr += sg->length >> 1;
+
+ data_read += sg->length;
+ sg = sg_next(sg);
+ }
+
+ } while (sg);
+ cmd->data->bytes_xfered = data_read;
+
+ do {
+ status = glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1);
+ } while (!(status & GLAMO_STAT1_MMC_IDLE));
+
+ if (host->mrq->stop)
+ glamo_mci_send_command(host, host->mrq->stop);
+
+ do {
+ status = glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1);
+ } while (!(status & GLAMO_STAT1_MMC_IDLE));
+done:
+ host->mrq = NULL;
+ glamo_mci_request_done(host, cmd->mrq);
+}
+
+static irqreturn_t glamo_mci_irq(int irq, void *devid)
+{
+ struct glamo_mci_host *host = (struct glamo_mci_host *)devid;
+ schedule_work(&host->irq_work);
+
+ return IRQ_HANDLED;
+}
+
+static void glamo_mci_send_command(struct glamo_mci_host *host,
+ struct mmc_command *cmd)
+{
+ uint8_t u8a[6];
+ uint16_t fire = 0;
+ unsigned int timeout = 1000000;
+ uint16_t *reg_resp = (uint16_t *)(host->mmio_base + GLAMO_REG_MMC_CMD_RSP1);
+ uint16_t status;
+ int triggers_int = 1;
+
+ /* if we can't do it, reject as busy */
+ if (!(glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1) &
+ GLAMO_STAT1_MMC_IDLE)) {
+ cmd->error = -EBUSY;
+ return;
+ }
+
+ /* create an array in wire order for CRC computation */
+ u8a[0] = 0x40 | (cmd->opcode & 0x3f);
+ u8a[1] = (uint8_t)(cmd->arg >> 24);
+ u8a[2] = (uint8_t)(cmd->arg >> 16);
+ u8a[3] = (uint8_t)(cmd->arg >> 8);
+ u8a[4] = (uint8_t)cmd->arg;
+ u8a[5] = (crc7(0, u8a, 5) << 1) | 0x01;
+
+ /* issue the wire-order array including CRC in register order */
+ glamo_reg_write(host, GLAMO_REG_MMC_CMD_REG1, ((u8a[4] << 8) | u8a[5]));
+ glamo_reg_write(host, GLAMO_REG_MMC_CMD_REG2, ((u8a[2] << 8) | u8a[3]));
+ glamo_reg_write(host, GLAMO_REG_MMC_CMD_REG3, ((u8a[0] << 8) | u8a[1]));
+
+ /* command index toggle */
+ fire |= (host->request_counter & 1) << 12;
+
+ /* set type of command */
+ switch (mmc_cmd_type(cmd)) {
+ case MMC_CMD_BC:
+ fire |= GLAMO_FIRE_MMC_CMDT_BNR;
+ break;
+ case MMC_CMD_BCR:
+ fire |= GLAMO_FIRE_MMC_CMDT_BR;
+ break;
+ case MMC_CMD_AC:
+ fire |= GLAMO_FIRE_MMC_CMDT_AND;
+ break;
+ case MMC_CMD_ADTC:
+ fire |= GLAMO_FIRE_MMC_CMDT_AD;
+ break;
+ }
+ /*
+ * if it expects a response, set the type expected
+ *
+ * R1, Length : 48bit, Normal response
+ * R1b, Length : 48bit, same R1, but added card busy status
+ * R2, Length : 136bit (really 128 bits with CRC snipped)
+ * R3, Length : 48bit (OCR register value)
+ * R4, Length : 48bit, SDIO_OP_CONDITION, Reverse SDIO Card
+ * R5, Length : 48bit, IO_RW_DIRECTION, Reverse SDIO Card
+ * R6, Length : 48bit (RCA register)
+ * R7, Length : 48bit (interface condition, VHS(voltage supplied),
+ * check pattern, CRC7)
+ */
+ switch (mmc_resp_type(cmd)) {
+ case MMC_RSP_R1: /* same index as R6 and R7 */
+ fire |= GLAMO_FIRE_MMC_RSPT_R1;
+ break;
+ case MMC_RSP_R1B:
+ fire |= GLAMO_FIRE_MMC_RSPT_R1b;
+ break;
+ case MMC_RSP_R2:
+ fire |= GLAMO_FIRE_MMC_RSPT_R2;
+ break;
+ case MMC_RSP_R3:
+ fire |= GLAMO_FIRE_MMC_RSPT_R3;
+ break;
+ /* R4 and R5 supported by chip not defined in linux/mmc/core.h (sdio) */
+ }
+ /*
+ * From the command index, set up the command class in the host ctrllr
+ *
+ * missing guys present on chip but couldn't figure out how to use yet:
+ * 0x0 "stream read"
+ * 0x9 "cancel running command"
+ */
+ switch (cmd->opcode) {
+ case MMC_READ_SINGLE_BLOCK:
+ fire |= GLAMO_FIRE_MMC_CC_SBR; /* single block read */
+ break;
+ case MMC_SWITCH: /* 64 byte payload */
+ case SD_APP_SEND_SCR:
+ case MMC_READ_MULTIPLE_BLOCK:
+ /* we will get an interrupt off this */
+ if (!cmd->mrq->stop) {
+ /* multiblock no stop */
+ fire |= GLAMO_FIRE_MMC_CC_MBRNS;
+ } else {
+ /* multiblock with stop */
+ fire |= GLAMO_FIRE_MMC_CC_MBRS;
+ }
+ break;
+ case MMC_WRITE_BLOCK:
+ fire |= GLAMO_FIRE_MMC_CC_SBW; /* single block write */
+ break;
+ case MMC_WRITE_MULTIPLE_BLOCK:
+ if (cmd->mrq->stop) {
+ /* multiblock with stop */
+ fire |= GLAMO_FIRE_MMC_CC_MBWS;
+ } else {
+ /* multiblock NO stop-- 'RESERVED'? */
+ fire |= GLAMO_FIRE_MMC_CC_MBWNS;
+ }
+ break;
+ case MMC_STOP_TRANSMISSION:
+ fire |= GLAMO_FIRE_MMC_CC_STOP; /* STOP */
+ triggers_int = 0;
+ break;
+ default:
+ fire |= GLAMO_FIRE_MMC_CC_BASIC; /* "basic command" */
+ triggers_int = 0;
+ break;
+ }
+
+ if (cmd->data)
+ host->mrq = cmd->mrq;
+
+ /* always largest timeout */
+ glamo_reg_write(host, GLAMO_REG_MMC_TIMEOUT, 0xfff);
+
+ /* Generate interrupt on txfer */
+ glamo_reg_set_bit_mask(host, GLAMO_REG_MMC_BASIC, 0xff36,
+ 0x0800 |
+ GLAMO_BASIC_MMC_NO_CLK_RD_WAIT |
+ GLAMO_BASIC_MMC_EN_COMPL_INT |
+ GLAMO_BASIC_MMC_EN_DATA_PUPS |
+ GLAMO_BASIC_MMC_EN_CMD_PUP);
+
+ /* send the command out on the wire */
+ /* dev_info(&host->pdev->dev, "Using FIRE %04X\n", fire); */
+ glamo_reg_write(host, GLAMO_REG_MMC_CMD_FIRE, fire);
+
+ /* we are deselecting card? because it isn't going to ack then... */
+ if ((cmd->opcode == 7) && (cmd->arg == 0))
+ return;
+
+ /*
+ * we must spin until response is ready or timed out
+ * -- we don't get interrupts unless there is a bulk rx
+ */
+ do
+ status = glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1);
+ while (((((status >> 15) & 1) != (host->request_counter & 1)) ||
+ (!(status & (GLAMO_STAT1_MMC_RB_RRDY |
+ GLAMO_STAT1_MMC_RTOUT |
+ GLAMO_STAT1_MMC_DTOUT |
+ GLAMO_STAT1_MMC_BWERR |
+ GLAMO_STAT1_MMC_BRERR)))) && (timeout--));
+
+ if ((status & (GLAMO_STAT1_MMC_RTOUT |
+ GLAMO_STAT1_MMC_DTOUT)) ||
+ (timeout == 0)) {
+ cmd->error = -ETIMEDOUT;
+ } else if (status & (GLAMO_STAT1_MMC_BWERR | GLAMO_STAT1_MMC_BRERR)) {
+ cmd->error = -EILSEQ;
+ }
+
+ if (cmd->flags & MMC_RSP_PRESENT) {
+ if (cmd->flags & MMC_RSP_136) {
+ cmd->resp[3] = readw(&reg_resp[0]) |
+ (readw(&reg_resp[1]) << 16);
+ cmd->resp[2] = readw(&reg_resp[2]) |
+ (readw(&reg_resp[3]) << 16);
+ cmd->resp[1] = readw(&reg_resp[4]) |
+ (readw(&reg_resp[5]) << 16);
+ cmd->resp[0] = readw(&reg_resp[6]) |
+ (readw(&reg_resp[7]) << 16);
+ } else {
+ cmd->resp[0] = (readw(&reg_resp[0]) >> 8) |
+ (readw(&reg_resp[1]) << 8) |
+ (readw(&reg_resp[2]) << 24);
+ }
+ }
+
+#if 0
+ /* We'll only get an interrupt when all data has been transfered.
+ By starting to copy data when it's avaiable we can increase
+ throughput by up to 30%. */
+ if (cmd->data && (cmd->data->flags & MMC_DATA_READ))
+ schedule_work(&host->read_work);
+#endif
+
+}
+
+static int glamo_mci_prepare_pio(struct glamo_mci_host *host,
+ struct mmc_data *data)
+{
+ /* set up the block info */
+ glamo_reg_write(host, GLAMO_REG_MMC_DATBLKLEN, data->blksz);
+ glamo_reg_write(host, GLAMO_REG_MMC_DATBLKCNT, data->blocks);
+
+ data->bytes_xfered = 0;
+
+ /* if write, prep the write into the shared RAM before the command */
+ if (data->flags & MMC_DATA_WRITE)
+ do_pio_write(host, data);
+
+ dev_dbg(&host->pdev->dev, "(blksz=%d, count=%d)\n",
+ data->blksz, data->blocks);
+ return 0;
+}
+
+static int glamo_mci_irq_poll(struct glamo_mci_host *host,
+ struct mmc_command *cmd)
+{
+ int timeout = 1000000;
+ uint16_t status;
+ /*
+ * if the glamo INT# line isn't wired (*cough* it can happen)
+ * I'm afraid we have to spin on the IRQ status bit and "be
+ * our own INT# line"
+ */
+ /*
+ * we have faith we will get an "interrupt"...
+ * but something insane like suspend problems can mean
+ * we spin here forever, so we timeout after a LONG time
+ */
+ do {
+ status = glamo_reg_read(host, GLAMO_REG_IRQ_STATUS);
+ } while ((--timeout) && !(status & GLAMO_IRQ_MMC));
+
+ if (timeout <= 0) {
+ if (cmd->data->error)
+ cmd->data->error = -ETIMEDOUT;
+ dev_err(&host->pdev->dev, "Payload timeout\n");
+ return -ETIMEDOUT;
+ }
+ /* ack this interrupt source */
+ writew(GLAMO_IRQ_MMC, host->core->base +
+ GLAMO_REG_IRQ_CLEAR);
+
+ /* yay we are an interrupt controller! -- call the ISR
+ * it will stop clock to card
+ */
+ glamo_mci_irq(host->irq, host);
+
+ return 0;
+}
+
+static void glamo_mci_send_request(struct mmc_host *mmc,
+ struct mmc_request *mrq)
+{
+ struct glamo_mci_host *host = mmc_priv(mmc);
+ struct mmc_command *cmd = mrq->cmd;
+
+ glamo_mci_clock_enable(host);
+ host->request_counter++;
+ if (cmd->data) {
+ if (glamo_mci_prepare_pio(host, cmd->data)) {
+ cmd->error = -EIO;
+ cmd->data->error = -EIO;
+ goto done;
+ }
+ }
+
+ dev_dbg(&host->pdev->dev, "cmd 0x%x, "
+ "arg 0x%x data=%p mrq->stop=%p flags 0x%x\n",
+ cmd->opcode, cmd->arg, cmd->data, cmd->mrq->stop,
+ cmd->flags);
+
+ glamo_mci_send_command(host, cmd);
+
+ /*
+ * if we don't have bulk data to take care of, we're done
+ */
+ if (!cmd->data || cmd->error)
+ goto done;
+
+
+ if (!host->core->irq_works) {
+ if (glamo_mci_irq_poll(host, mrq->cmd))
+ goto done;
+ }
+
+ /*
+ * Otherwise can can use the interrupt as async completion --
+ * if there is read data coming, or we wait for write data to complete,
+ * exit without mmc_request_done() as the payload interrupt
+ * will service it
+ */
+ dev_dbg(&host->pdev->dev, "Waiting for payload data\n");
+ return;
+done:
+ if (!cmd->error)
+ cmd->error = glamo_mci_wait_idle(host, jiffies + 2 * HZ);
+ glamo_mci_request_done(host, mrq);
+}
+
+static void glamo_mci_set_power_mode(struct glamo_mci_host *host,
+ unsigned char power_mode)
+{
+ int ret;
+
+ if (power_mode == host->power_mode)
+ return;
+
+ switch (power_mode) {
+ case MMC_POWER_UP:
+ if (host->power_mode == MMC_POWER_OFF) {
+ ret = regulator_enable(host->regulator);
+ if (ret)
+ dev_err(&host->pdev->dev,
+ "Failed to enable regulator: %d\n",
+ ret);
+ }
+ break;
+ case MMC_POWER_ON:
+ break;
+ case MMC_POWER_OFF:
+ default:
+ glamo_engine_disable(host->core, GLAMO_ENGINE_MMC);
+
+ ret = regulator_disable(host->regulator);
+ if (ret)
+ dev_warn(&host->pdev->dev,
+ "Failed to disable regulator: %d\n",
+ ret);
+ break;
+ }
+ host->power_mode = power_mode;
+}
+
+static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+ struct glamo_mci_host *host = mmc_priv(mmc);
+ int bus_width = 0;
+ int rate;
+ int sd_drive;
+ int ret;
+
+ /* Set power */
+ glamo_mci_set_power_mode(host, ios->power_mode);
+
+ if (host->vdd != ios->vdd) {
+ ret = mmc_regulator_set_ocr(host->regulator, ios->vdd);
+ if (ret)
+ dev_err(&host->pdev->dev,
+ "Failed to set regulator voltage: %d\n", ret);
+ else
+ host->vdd = ios->vdd;
+ }
+ rate = glamo_mci_set_card_clock(host, ios->clock);
+
+ if ((ios->power_mode == MMC_POWER_ON) ||
+ (ios->power_mode == MMC_POWER_UP)) {
+ dev_info(&host->pdev->dev,
+ "powered (vdd = %hu) clk: %dkHz div=%hu (req: %ukHz). "
+ "Bus width=%d\n", ios->vdd,
+ rate / 1000, 0,
+ ios->clock / 1000, (int)ios->bus_width);
+ } else {
+ dev_info(&host->pdev->dev, "glamo_mci_set_ios: power down.\n");
+ }
+
+ /* set bus width */
+ if (ios->bus_width == MMC_BUS_WIDTH_4)
+ bus_width = GLAMO_BASIC_MMC_EN_4BIT_DATA;
+
+ sd_drive = (rate * 4) / host->clk_rate;
+ if (sd_drive > 3)
+ sd_drive = 3;
+
+ glamo_reg_set_bit_mask(host, GLAMO_REG_MMC_BASIC,
+ GLAMO_BASIC_MMC_EN_4BIT_DATA | 0xb0,
+ bus_width | sd_drive << 6);
+}
+
+
+/*
+ * no physical write protect supported by us
+ */
+static int glamo_mci_get_ro(struct mmc_host *mmc)
+{
+ return 0;
+}
+
+static struct mmc_host_ops glamo_mci_ops = {
+ .request = glamo_mci_send_request,
+ .set_ios = glamo_mci_set_ios,
+ .get_ro = glamo_mci_get_ro,
+};
+
+static int glamo_mci_probe(struct platform_device *pdev)
+{
+ struct mmc_host *mmc;
+ struct glamo_mci_host *host;
+ struct glamo_core *core = dev_get_drvdata(pdev->dev.parent);
+ int ret;
+
+ dev_info(&pdev->dev, "glamo_mci driver (C)2007 Openmoko, Inc\n");
+
+ mmc = mmc_alloc_host(sizeof(struct glamo_mci_host), &pdev->dev);
+ if (!mmc) {
+ ret = -ENOMEM;
+ goto probe_out;
+ }
+
+ host = mmc_priv(mmc);
+ host->mmc = mmc;
+ host->pdev = pdev;
+ if (core->pdata)
+ host->pdata = core->pdata->mmc_data;
+ host->power_mode = MMC_POWER_OFF;
+ host->clk_enabled = 0;
+ host->core = core;
+ host->irq = platform_get_irq(pdev, 0);
+
+ INIT_WORK(&host->irq_work, glamo_mci_irq_worker);
+ INIT_WORK(&host->read_work, glamo_mci_read_worker);
+
+ host->regulator = regulator_get(pdev->dev.parent, "SD_3V3");
+ if (IS_ERR(host->regulator)) {
+ dev_err(&pdev->dev, "Cannot proceed without regulator.\n");
+ ret = PTR_ERR(host->regulator);
+ goto probe_free_host;
+ }
+
+ host->mmio_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!host->mmio_mem) {
+ dev_err(&pdev->dev,
+ "failed to get io memory region resouce.\n");
+ ret = -ENOENT;
+ goto probe_regulator_put;
+ }
+
+ host->mmio_mem = request_mem_region(host->mmio_mem->start,
+ resource_size(host->mmio_mem),
+ pdev->name);
+
+ if (!host->mmio_mem) {
+ dev_err(&pdev->dev, "failed to request io memory region.\n");
+ ret = -ENOENT;
+ goto probe_regulator_put;
+ }
+
+ host->mmio_base = ioremap(host->mmio_mem->start,
+ resource_size(host->mmio_mem));
+ if (!host->mmio_base) {
+ dev_err(&pdev->dev, "failed to ioremap() io memory region.\n");
+ ret = -EINVAL;
+ goto probe_free_mem_region_mmio;
+ }
+
+
+ /* Get ahold of our data buffer we use for data in and out on MMC */
+ host->data_mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (!host->data_mem) {
+ dev_err(&pdev->dev,
+ "failed to get io memory region resource.\n");
+ ret = -ENOENT;
+ goto probe_iounmap_mmio;
+ }
+
+ host->data_mem = request_mem_region(host->data_mem->start,
+ resource_size(host->data_mem),
+ pdev->name);
+
+ if (!host->data_mem) {
+ dev_err(&pdev->dev, "failed to request io memory region.\n");
+ ret = -ENOENT;
+ goto probe_iounmap_mmio;
+ }
+ host->data_base = ioremap(host->data_mem->start,
+ resource_size(host->data_mem));
+
+ if (host->data_base == 0) {
+ dev_err(&pdev->dev, "failed to ioremap() io memory region.\n");
+ ret = -EINVAL;
+ goto probe_free_mem_region_data;
+ }
+
+ ret = request_irq(host->irq, glamo_mci_irq, IRQF_SHARED,
+ pdev->name, host);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to register irq.\n");
+ goto probe_iounmap_data;
+ }
+
+
+ host->vdd = 0;
+ host->clk_rate = glamo_pll_rate(host->core, GLAMO_PLL1);
+
+ /* explain our host controller capabilities */
+ mmc->ops = &glamo_mci_ops;
+ mmc->ocr_avail = mmc_regulator_get_ocrmask(host->regulator);
+ mmc->caps = MMC_CAP_4_BIT_DATA |
+ MMC_CAP_MMC_HIGHSPEED |
+ MMC_CAP_SD_HIGHSPEED;
+ mmc->f_min = host->clk_rate / 256;
+ mmc->f_max = sd_max_clk;
+
+ mmc->max_blk_count = (1 << 16) - 1; /* GLAMO_REG_MMC_RB_BLKCNT */
+ mmc->max_blk_size = (1 << 12) - 1; /* GLAMO_REG_MMC_RB_BLKLEN */
+ mmc->max_req_size = resource_size(host->data_mem);
+ mmc->max_seg_size = mmc->max_req_size;
+ mmc->max_phys_segs = 128;
+ mmc->max_hw_segs = 128;
+
+ if (mmc->ocr_avail < 0) {
+ dev_warn(&pdev->dev,
+ "Failed to get ocr list for regulator: %d.\n",
+ mmc->ocr_avail);
+ mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
+ }
+
+ platform_set_drvdata(pdev, mmc);
+
+ glamo_engine_enable(host->core, GLAMO_ENGINE_MMC);
+ glamo_mci_reset(host);
+ glamo_engine_disable(host->core, GLAMO_ENGINE_MMC);
+
+ setup_timer(&host->disable_timer, glamo_mci_disable_timer,
+ (unsigned long)host);
+
+ ret = mmc_add_host(mmc);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to add mmc host.\n");
+ goto probe_freeirq;
+ }
+
+ return 0;
+
+probe_freeirq:
+ free_irq(host->irq, host);
+probe_iounmap_data:
+ iounmap(host->data_base);
+probe_free_mem_region_data:
+ release_mem_region(host->data_mem->start,
+ resource_size(host->data_mem));
+probe_iounmap_mmio:
+ iounmap(host->mmio_base);
+probe_free_mem_region_mmio:
+ release_mem_region(host->mmio_mem->start,
+ resource_size(host->mmio_mem));
+probe_regulator_put:
+ regulator_put(host->regulator);
+probe_free_host:
+ mmc_free_host(mmc);
+probe_out:
+ return ret;
+}
+
+static int glamo_mci_remove(struct platform_device *pdev)
+{
+ struct mmc_host *mmc = platform_get_drvdata(pdev);
+ struct glamo_mci_host *host = mmc_priv(mmc);
+
+ free_irq(host->irq, host);
+
+ mmc_remove_host(mmc);
+ iounmap(host->mmio_base);
+ iounmap(host->data_base);
+ release_mem_region(host->mmio_mem->start,
+ resource_size(host->mmio_mem));
+ release_mem_region(host->data_mem->start,
+ resource_size(host->data_mem));
+
+ regulator_put(host->regulator);
+
+ mmc_free_host(mmc);
+
+ glamo_engine_disable(host->core, GLAMO_ENGINE_MMC);
+ return 0;
+}
+
+
+#ifdef CONFIG_PM
+
+static int glamo_mci_suspend(struct device *dev)
+{
+ struct mmc_host *mmc = dev_get_drvdata(dev);
+ struct glamo_mci_host *host = mmc_priv(mmc);
+ int ret;
+
+ cancel_work_sync(&host->irq_work);
+
+ ret = mmc_suspend_host(mmc, PMSG_SUSPEND);
+
+ return ret;
+}
+
+static int glamo_mci_resume(struct device *dev)
+{
+ struct mmc_host *mmc = dev_get_drvdata(dev);
+ struct glamo_mci_host *host = mmc_priv(mmc);
+ int ret;
+
+
+ glamo_mci_reset(host);
+ glamo_engine_enable(host->core, GLAMO_ENGINE_MMC);
+ mdelay(10);
+
+ ret = mmc_resume_host(host->mmc);
+
+ return 0;
+}
+
+static struct dev_pm_ops glamo_mci_pm_ops = {
+ .suspend = glamo_mci_suspend,
+ .resume = glamo_mci_resume,
+ .freeze = glamo_mci_suspend,
+ .thaw = glamo_mci_resume,
+};
+#define GLAMO_MCI_PM_OPS (&glamo_mci_pm_ops)
+
+#else /* CONFIG_PM */
+#define GLAMO_MCI_PM_OPS NULL
+#endif /* CONFIG_PM */
+
+
+static struct platform_driver glamo_mci_driver = {
+ .probe = glamo_mci_probe,
+ .remove = glamo_mci_remove,
+ .driver = {
+ .name = "glamo-mci",
+ .owner = THIS_MODULE,
+ .pm = GLAMO_MCI_PM_OPS,
+ },
+};
+
+static int __init glamo_mci_init(void)
+{
+ platform_driver_register(&glamo_mci_driver);
+ return 0;
+}
+module_init(glamo_mci_init);
+
+static void __exit glamo_mci_exit(void)
+{
+ platform_driver_unregister(&glamo_mci_driver);
+}
+module_exit(glamo_mci_exit);
+
+MODULE_DESCRIPTION("Glamo MMC/SD Card Interface driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Andy Green <andy@openmoko.com>");
diff --git a/drivers/mfd/glamo/glamo-regs.h b/drivers/mfd/glamo/glamo-regs.h
new file mode 100644
index 00000000000..59848e1122e
--- /dev/null
+++ b/drivers/mfd/glamo/glamo-regs.h
@@ -0,0 +1,630 @@
+#ifndef _GLAMO_REGS_H
+#define _GLAMO_REGS_H
+
+/* Smedia Glamo 336x/337x driver
+ *
+ * (C) 2007 by Openmoko, Inc.
+ * Author: Harald Welte <laforge@openmoko.org>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+enum glamo_regster_offsets {
+ GLAMO_REGOFS_GENERIC = 0x0000,
+ GLAMO_REGOFS_HOSTBUS = 0x0200,
+ GLAMO_REGOFS_MEMORY = 0x0300,
+ GLAMO_REGOFS_VIDCAP = 0x0400,
+ GLAMO_REGOFS_ISP = 0x0500,
+ GLAMO_REGOFS_JPEG = 0x0800,
+ GLAMO_REGOFS_MPEG = 0x0c00,
+ GLAMO_REGOFS_LCD = 0x1100,
+ GLAMO_REGOFS_MMC = 0x1400,
+ GLAMO_REGOFS_MPROC0 = 0x1500,
+ GLAMO_REGOFS_MPROC1 = 0x1580,
+ GLAMO_REGOFS_CMDQUEUE = 0x1600,
+ GLAMO_REGOFS_RISC = 0x1680,
+ GLAMO_REGOFS_2D = 0x1700,
+ GLAMO_REGOFS_3D = 0x1b00,
+ GLAMO_REGOFS_END = 0x2400,
+};
+
+
+enum glamo_register_generic {
+ GLAMO_REG_GCONF1 = 0x0000,
+ GLAMO_REG_GCONF2 = 0x0002,
+#define GLAMO_REG_DEVICE_ID GLAMO_REG_GCONF2
+ GLAMO_REG_GCONF3 = 0x0004,
+#define GLAMO_REG_REVISION_ID GLAMO_REG_GCONF3
+ GLAMO_REG_IRQ_GEN1 = 0x0006,
+#define GLAMO_REG_IRQ_ENABLE GLAMO_REG_IRQ_GEN1
+ GLAMO_REG_IRQ_GEN2 = 0x0008,
+#define GLAMO_REG_IRQ_SET GLAMO_REG_IRQ_GEN2
+ GLAMO_REG_IRQ_GEN3 = 0x000a,
+#define GLAMO_REG_IRQ_CLEAR GLAMO_REG_IRQ_GEN3
+ GLAMO_REG_IRQ_GEN4 = 0x000c,
+#define GLAMO_REG_IRQ_STATUS GLAMO_REG_IRQ_GEN4
+ GLAMO_REG_CLOCK_HOST = 0x0010,
+ GLAMO_REG_CLOCK_MEMORY = 0x0012,
+ GLAMO_REG_CLOCK_LCD = 0x0014,
+ GLAMO_REG_CLOCK_MMC = 0x0016,
+ GLAMO_REG_CLOCK_ISP = 0x0018,
+ GLAMO_REG_CLOCK_JPEG = 0x001a,
+ GLAMO_REG_CLOCK_3D = 0x001c,
+ GLAMO_REG_CLOCK_2D = 0x001e,
+ GLAMO_REG_CLOCK_RISC1 = 0x0020, /* 3365 only? */
+ GLAMO_REG_CLOCK_RISC2 = 0x0022, /* 3365 only? */
+ GLAMO_REG_CLOCK_MPEG = 0x0024,
+ GLAMO_REG_CLOCK_MPROC = 0x0026,
+
+ GLAMO_REG_CLOCK_GEN5_1 = 0x0030,
+ GLAMO_REG_CLOCK_GEN5_2 = 0x0032,
+ GLAMO_REG_CLOCK_GEN6 = 0x0034,
+ GLAMO_REG_CLOCK_GEN7 = 0x0036,
+ GLAMO_REG_CLOCK_GEN8 = 0x0038,
+ GLAMO_REG_CLOCK_GEN9 = 0x003a,
+ GLAMO_REG_CLOCK_GEN10 = 0x003c,
+ GLAMO_REG_CLOCK_GEN11 = 0x003e,
+ GLAMO_REG_PLL_GEN1 = 0x0040,
+ GLAMO_REG_PLL_GEN2 = 0x0042,
+ GLAMO_REG_PLL_GEN3 = 0x0044,
+ GLAMO_REG_PLL_GEN4 = 0x0046,
+ GLAMO_REG_PLL_GEN5 = 0x0048,
+ GLAMO_REG_GPIO_GEN1 = 0x0050,
+ GLAMO_REG_GPIO_GEN2 = 0x0052,
+ GLAMO_REG_GPIO_GEN3 = 0x0054,
+ GLAMO_REG_GPIO_GEN4 = 0x0056,
+ GLAMO_REG_GPIO_GEN5 = 0x0058,
+ GLAMO_REG_GPIO_GEN6 = 0x005a,
+ GLAMO_REG_GPIO_GEN7 = 0x005c,
+ GLAMO_REG_GPIO_GEN8 = 0x005e,
+ GLAMO_REG_GPIO_GEN9 = 0x0060,
+ GLAMO_REG_GPIO_GEN10 = 0x0062,
+ GLAMO_REG_DFT_GEN1 = 0x0070,
+ GLAMO_REG_DFT_GEN2 = 0x0072,
+ GLAMO_REG_DFT_GEN3 = 0x0074,
+ GLAMO_REG_DFT_GEN4 = 0x0076,
+
+ GLAMO_REG_DFT_GEN5 = 0x01e0,
+ GLAMO_REG_DFT_GEN6 = 0x01f0,
+};
+
+#define GLAMO_REG_HOSTBUS(x) (GLAMO_REGOFS_HOSTBUS-2+(x*2))
+
+#define REG_MEM(x) (GLAMO_REGOFS_MEMORY+(x))
+#define GLAMO_REG_MEM_TIMING(x) (GLAMO_REG_MEM_TIMING1-2+(x*2))
+
+enum glamo_register_mem {
+ GLAMO_REG_MEM_TYPE = REG_MEM(0x00),
+ GLAMO_REG_MEM_GEN = REG_MEM(0x02),
+ GLAMO_REG_MEM_TIMING1 = REG_MEM(0x04),
+ GLAMO_REG_MEM_TIMING2 = REG_MEM(0x06),
+ GLAMO_REG_MEM_TIMING3 = REG_MEM(0x08),
+ GLAMO_REG_MEM_TIMING4 = REG_MEM(0x0a),
+ GLAMO_REG_MEM_TIMING5 = REG_MEM(0x0c),
+ GLAMO_REG_MEM_TIMING6 = REG_MEM(0x0e),
+ GLAMO_REG_MEM_TIMING7 = REG_MEM(0x10),
+ GLAMO_REG_MEM_TIMING8 = REG_MEM(0x12),
+ GLAMO_REG_MEM_TIMING9 = REG_MEM(0x14),
+ GLAMO_REG_MEM_TIMING10 = REG_MEM(0x16),
+ GLAMO_REG_MEM_TIMING11 = REG_MEM(0x18),
+ GLAMO_REG_MEM_POWER1 = REG_MEM(0x1a),
+ GLAMO_REG_MEM_POWER2 = REG_MEM(0x1c),
+ GLAMO_REG_MEM_LCD_BUF1 = REG_MEM(0x1e),
+ GLAMO_REG_MEM_LCD_BUF2 = REG_MEM(0x20),
+ GLAMO_REG_MEM_LCD_BUF3 = REG_MEM(0x22),
+ GLAMO_REG_MEM_LCD_BUF4 = REG_MEM(0x24),
+ GLAMO_REG_MEM_BIST1 = REG_MEM(0x26),
+ GLAMO_REG_MEM_BIST2 = REG_MEM(0x28),
+ GLAMO_REG_MEM_BIST3 = REG_MEM(0x2a),
+ GLAMO_REG_MEM_BIST4 = REG_MEM(0x2c),
+ GLAMO_REG_MEM_BIST5 = REG_MEM(0x2e),
+ GLAMO_REG_MEM_MAH1 = REG_MEM(0x30),
+ GLAMO_REG_MEM_MAH2 = REG_MEM(0x32),
+ GLAMO_REG_MEM_DRAM1 = REG_MEM(0x34),
+ GLAMO_REG_MEM_DRAM2 = REG_MEM(0x36),
+ GLAMO_REG_MEM_CRC = REG_MEM(0x38),
+};
+
+#define GLAMO_MEM_TYPE_MASK 0x03
+
+enum glamo_reg_mem_dram1 {
+ /* b0 - b10 == refresh period, 1 -> 2048 clocks */
+ GLAMO_MEM_DRAM1_EN_GATE_CLK = (1 << 11),
+ GLAMO_MEM_DRAM1_SELF_REFRESH = (1 << 12),
+ GLAMO_MEM_DRAM1_EN_GATE_CKE = (1 << 13),
+ GLAMO_MEM_DRAM1_EN_DRAM_REFRESH = (1 << 14),
+ GLAMO_MEM_DRAM1_EN_MODEREG_SET = (1 << 15),
+};
+
+enum glamo_reg_mem_dram2 {
+ GLAMO_MEM_DRAM2_DEEP_PWRDOWN = (1 << 12),
+};
+
+enum glamo_irq_index {
+ GLAMO_IRQIDX_HOSTBUS = 0,
+ GLAMO_IRQIDX_JPEG = 1,
+ GLAMO_IRQIDX_MPEG = 2,
+ GLAMO_IRQIDX_MPROC1 = 3,
+ GLAMO_IRQIDX_MPROC0 = 4,
+ GLAMO_IRQIDX_CMDQUEUE = 5,
+ GLAMO_IRQIDX_2D = 6,
+ GLAMO_IRQIDX_MMC = 7,
+ GLAMO_IRQIDX_RISC = 8,
+};
+
+enum glamo_irq {
+ GLAMO_IRQ_HOSTBUS = (1 << GLAMO_IRQIDX_HOSTBUS),
+ GLAMO_IRQ_JPEG = (1 << GLAMO_IRQIDX_JPEG),
+ GLAMO_IRQ_MPEG = (1 << GLAMO_IRQIDX_MPEG),
+ GLAMO_IRQ_MPROC1 = (1 << GLAMO_IRQIDX_MPROC1),
+ GLAMO_IRQ_MPROC0 = (1 << GLAMO_IRQIDX_MPROC0),
+ GLAMO_IRQ_CMDQUEUE = (1 << GLAMO_IRQIDX_CMDQUEUE),
+ GLAMO_IRQ_2D = (1 << GLAMO_IRQIDX_2D),
+ GLAMO_IRQ_MMC = (1 << GLAMO_IRQIDX_MMC),
+ GLAMO_IRQ_RISC = (1 << GLAMO_IRQIDX_RISC),
+};
+
+enum glamo_reg_clock_host {
+ GLAMO_CLOCK_HOST_DG_BCLK = 0x0001,
+ GLAMO_CLOCK_HOST_DG_M0CLK = 0x0004,
+ GLAMO_CLOCK_HOST_RESET = 0x1000,
+};
+
+enum glamo_reg_clock_mem {
+ GLAMO_CLOCK_MEM_DG_M1CLK = 0x0001,
+ GLAMO_CLOCK_MEM_EN_M1CLK = 0x0002,
+ GLAMO_CLOCK_MEM_DG_MOCACLK = 0x0004,
+ GLAMO_CLOCK_MEM_EN_MOCACLK = 0x0008,
+ GLAMO_CLOCK_MEM_RESET = 0x1000,
+ GLAMO_CLOCK_MOCA_RESET = 0x2000,
+};
+
+enum glamo_reg_clock_lcd {
+ GLAMO_CLOCK_LCD_DG_DCLK = 0x0001,
+ GLAMO_CLOCK_LCD_EN_DCLK = 0x0002,
+ GLAMO_CLOCK_LCD_DG_DMCLK = 0x0004,
+ GLAMO_CLOCK_LCD_EN_DMCLK = 0x0008,
+ GLAMO_CLOCK_LCD_EN_DHCLK = 0x0020,
+ GLAMO_CLOCK_LCD_DG_M5CLK = 0x0040,
+ GLAMO_CLOCK_LCD_EN_M5CLK = 0x0080,
+ GLAMO_CLOCK_LCD_RESET = 0x1000,
+};
+
+enum glamo_reg_clock_mmc {
+ GLAMO_CLOCK_MMC_DG_TCLK = 0x0001,
+ GLAMO_CLOCK_MMC_EN_TCLK = 0x0002,
+ GLAMO_CLOCK_MMC_DG_M9CLK = 0x0004,
+ GLAMO_CLOCK_MMC_EN_M9CLK = 0x0008,
+ GLAMO_CLOCK_MMC_RESET = 0x1000,
+};
+
+enum glamo_reg_basic_mmc {
+ /* set to disable CRC error rejection */
+ GLAMO_BASIC_MMC_DISABLE_CRC = 0x0001,
+ /* enable completion interrupt */
+ GLAMO_BASIC_MMC_EN_COMPL_INT = 0x0002,
+ /* stop MMC clock while enforced idle waiting for data from card */
+ GLAMO_BASIC_MMC_NO_CLK_RD_WAIT = 0x0004,
+ /* 0 = 1-bit bus to card, 1 = use 4-bit bus (has to be negotiated) */
+ GLAMO_BASIC_MMC_EN_4BIT_DATA = 0x0008,
+ /* enable 75K pullups on D3..D0 */
+ GLAMO_BASIC_MMC_EN_DATA_PUPS = 0x0010,
+ /* enable 75K pullup on CMD */
+ GLAMO_BASIC_MMC_EN_CMD_PUP = 0x0020,
+ /* IO drive strength 00=weak -> 11=strongest */
+ GLAMO_BASIC_MMC_EN_DR_STR0 = 0x0040,
+ GLAMO_BASIC_MMC_EN_DR_STR1 = 0x0080,
+ /* TCLK delay stage A, 0000 = 500ps --> 1111 = 8ns */
+ GLAMO_BASIC_MMC_EN_TCLK_DLYA0 = 0x0100,
+ GLAMO_BASIC_MMC_EN_TCLK_DLYA1 = 0x0200,
+ GLAMO_BASIC_MMC_EN_TCLK_DLYA2 = 0x0400,
+ GLAMO_BASIC_MMC_EN_TCLK_DLYA3 = 0x0800,
+ /* TCLK delay stage B (cumulative), 0000 = 500ps --> 1111 = 8ns */
+ GLAMO_BASIC_MMC_EN_TCLK_DLYB0 = 0x1000,
+ GLAMO_BASIC_MMC_EN_TCLK_DLYB1 = 0x2000,
+ GLAMO_BASIC_MMC_EN_TCLK_DLYB2 = 0x4000,
+ GLAMO_BASIC_MMC_EN_TCLK_DLYB3 = 0x8000,
+};
+
+enum glamo_reg_stat1_mmc {
+ /* command "counter" (really: toggle) */
+ GLAMO_STAT1_MMC_CMD_CTR = 0x8000,
+ /* engine is idle */
+ GLAMO_STAT1_MMC_IDLE = 0x4000,
+ /* readback response is ready */
+ GLAMO_STAT1_MMC_RB_RRDY = 0x0200,
+ /* readback data is ready */
+ GLAMO_STAT1_MMC_RB_DRDY = 0x0100,
+ /* no response timeout */
+ GLAMO_STAT1_MMC_RTOUT = 0x0020,
+ /* no data timeout */
+ GLAMO_STAT1_MMC_DTOUT = 0x0010,
+ /* CRC error on block write */
+ GLAMO_STAT1_MMC_BWERR = 0x0004,
+ /* CRC error on block read */
+ GLAMO_STAT1_MMC_BRERR = 0x0002
+};
+
+enum glamo_reg_fire_mmc {
+ /* command "counter" (really: toggle)
+ * the STAT1 register reflects this so you can ensure you don't look
+ * at status for previous command
+ */
+ GLAMO_FIRE_MMC_CMD_CTR = 0x8000,
+ /* sets kind of response expected */
+ GLAMO_FIRE_MMC_RES_MASK = 0x0700,
+ /* sets command type */
+ GLAMO_FIRE_MMC_TYP_MASK = 0x00C0,
+ /* sets command class */
+ GLAMO_FIRE_MMC_CLS_MASK = 0x000F,
+};
+
+enum glamo_fire_mmc_response_types {
+ GLAMO_FIRE_MMC_RSPT_R1 = 0x0000,
+ GLAMO_FIRE_MMC_RSPT_R1b = 0x0100,
+ GLAMO_FIRE_MMC_RSPT_R2 = 0x0200,
+ GLAMO_FIRE_MMC_RSPT_R3 = 0x0300,
+ GLAMO_FIRE_MMC_RSPT_R4 = 0x0400,
+ GLAMO_FIRE_MMC_RSPT_R5 = 0x0500,
+};
+
+enum glamo_fire_mmc_command_types {
+ /* broadcast, no response */
+ GLAMO_FIRE_MMC_CMDT_BNR = 0x0000,
+ /* broadcast, with response */
+ GLAMO_FIRE_MMC_CMDT_BR = 0x0040,
+ /* addressed, no data */
+ GLAMO_FIRE_MMC_CMDT_AND = 0x0080,
+ /* addressed, with data */
+ GLAMO_FIRE_MMC_CMDT_AD = 0x00C0,
+};
+
+enum glamo_fire_mmc_command_class {
+ /* "Stream Read" */
+ GLAMO_FIRE_MMC_CC_STRR = 0x0000,
+ /* Single Block Read */
+ GLAMO_FIRE_MMC_CC_SBR = 0x0001,
+ /* Multiple Block Read With Stop */
+ GLAMO_FIRE_MMC_CC_MBRS = 0x0002,
+ /* Multiple Block Read No Stop */
+ GLAMO_FIRE_MMC_CC_MBRNS = 0x0003,
+ /* RESERVED for "Stream Write" */
+ GLAMO_FIRE_MMC_CC_STRW = 0x0004,
+ /* "Stream Write" */
+ GLAMO_FIRE_MMC_CC_SBW = 0x0005,
+ /* RESERVED for Multiple Block Write With Stop */
+ GLAMO_FIRE_MMC_CC_MBWS = 0x0006,
+ /* Multiple Block Write No Stop */
+ GLAMO_FIRE_MMC_CC_MBWNS = 0x0007,
+ /* STOP command */
+ GLAMO_FIRE_MMC_CC_STOP = 0x0008,
+ /* Cancel on Running Command */
+ GLAMO_FIRE_MMC_CC_CANCL = 0x0009,
+ /* "Basic Command" */
+ GLAMO_FIRE_MMC_CC_BASIC = 0x000a,
+};
+
+/* these are offsets from the start of the MMC register region */
+enum glamo_register_mmc {
+ /* MMC command, b15..8 = cmd arg b7..0; b7..1 = CRC; b0 = end bit */
+ GLAMO_REG_MMC_CMD_REG1 = 0x00,
+ /* MMC command, b15..0 = cmd arg b23 .. 8 */
+ GLAMO_REG_MMC_CMD_REG2 = 0x02,
+ /* MMC command, b15=start, b14=transmission,
+ * b13..8=cmd idx, b7..0=cmd arg b31..24
+ */
+ GLAMO_REG_MMC_CMD_REG3 = 0x04,
+ GLAMO_REG_MMC_CMD_FIRE = 0x06,
+ GLAMO_REG_MMC_CMD_RSP1 = 0x10,
+ GLAMO_REG_MMC_CMD_RSP2 = 0x12,
+ GLAMO_REG_MMC_CMD_RSP3 = 0x14,
+ GLAMO_REG_MMC_CMD_RSP4 = 0x16,
+ GLAMO_REG_MMC_CMD_RSP5 = 0x18,
+ GLAMO_REG_MMC_CMD_RSP6 = 0x1a,
+ GLAMO_REG_MMC_CMD_RSP7 = 0x1c,
+ GLAMO_REG_MMC_CMD_RSP8 = 0x1e,
+ GLAMO_REG_MMC_RB_STAT1 = 0x20,
+ GLAMO_REG_MMC_RB_BLKCNT = 0x22,
+ GLAMO_REG_MMC_RB_BLKLEN = 0x24,
+ GLAMO_REG_MMC_BASIC = 0x30,
+ GLAMO_REG_MMC_RDATADS1 = 0x34,
+ GLAMO_REG_MMC_RDATADS2 = 0x36,
+ GLAMO_REG_MMC_WDATADS1 = 0x38,
+ GLAMO_REG_MMC_WDATADS2 = 0x3a,
+ GLAMO_REG_MMC_DATBLKCNT = 0x3c,
+ GLAMO_REG_MMC_DATBLKLEN = 0x3e,
+ GLAMO_REG_MMC_TIMEOUT = 0x40,
+
+};
+
+enum glamo_reg_clock_isp {
+ GLAMO_CLOCK_ISP_DG_I1CLK = 0x0001,
+ GLAMO_CLOCK_ISP_EN_I1CLK = 0x0002,
+ GLAMO_CLOCK_ISP_DG_CCLK = 0x0004,
+ GLAMO_CLOCK_ISP_EN_CCLK = 0x0008,
+ GLAMO_CLOCK_ISP_EN_SCLK = 0x0020,
+ GLAMO_CLOCK_ISP_DG_M2CLK = 0x0040,
+ GLAMO_CLOCK_ISP_EN_M2CLK = 0x0080,
+ GLAMO_CLOCK_ISP_DG_M15CLK = 0x0100,
+ GLAMO_CLOCK_ISP_EN_M15CLK = 0x0200,
+ GLAMO_CLOCK_ISP1_RESET = 0x1000,
+ GLAMO_CLOCK_ISP2_RESET = 0x2000,
+};
+
+enum glamo_reg_clock_jpeg {
+ GLAMO_CLOCK_JPEG_DG_JCLK = 0x0001,
+ GLAMO_CLOCK_JPEG_EN_JCLK = 0x0002,
+ GLAMO_CLOCK_JPEG_DG_M3CLK = 0x0004,
+ GLAMO_CLOCK_JPEG_EN_M3CLK = 0x0008,
+ GLAMO_CLOCK_JPEG_RESET = 0x1000,
+};
+
+enum glamo_reg_clock_2d {
+ GLAMO_CLOCK_2D_DG_GCLK = 0x0001,
+ GLAMO_CLOCK_2D_EN_GCLK = 0x0002,
+ GLAMO_CLOCK_2D_DG_M7CLK = 0x0004,
+ GLAMO_CLOCK_2D_EN_M7CLK = 0x0008,
+ GLAMO_CLOCK_2D_DG_M6CLK = 0x0010,
+ GLAMO_CLOCK_2D_EN_M6CLK = 0x0020,
+ GLAMO_CLOCK_2D_RESET = 0x1000,
+ GLAMO_CLOCK_2D_CQ_RESET = 0x2000,
+};
+
+enum glamo_reg_clock_3d {
+ GLAMO_CLOCK_3D_DG_ECLK = 0x0001,
+ GLAMO_CLOCK_3D_EN_ECLK = 0x0002,
+ GLAMO_CLOCK_3D_DG_RCLK = 0x0004,
+ GLAMO_CLOCK_3D_EN_RCLK = 0x0008,
+ GLAMO_CLOCK_3D_DG_M8CLK = 0x0010,
+ GLAMO_CLOCK_3D_EN_M8CLK = 0x0020,
+ GLAMO_CLOCK_3D_BACK_RESET = 0x1000,
+ GLAMO_CLOCK_3D_FRONT_RESET = 0x2000,
+};
+
+enum glamo_reg_clock_mpeg {
+ GLAMO_CLOCK_MPEG_DG_X0CLK = 0x0001,
+ GLAMO_CLOCK_MPEG_EN_X0CLK = 0x0002,
+ GLAMO_CLOCK_MPEG_DG_X1CLK = 0x0004,
+ GLAMO_CLOCK_MPEG_EN_X1CLK = 0x0008,
+ GLAMO_CLOCK_MPEG_DG_X2CLK = 0x0010,
+ GLAMO_CLOCK_MPEG_EN_X2CLK = 0x0020,
+ GLAMO_CLOCK_MPEG_DG_X3CLK = 0x0040,
+ GLAMO_CLOCK_MPEG_EN_X3CLK = 0x0080,
+ GLAMO_CLOCK_MPEG_DG_X4CLK = 0x0100,
+ GLAMO_CLOCK_MPEG_EN_X4CLK = 0x0200,
+ GLAMO_CLOCK_MPEG_DG_X6CLK = 0x0400,
+ GLAMO_CLOCK_MPEG_EN_X6CLK = 0x0800,
+ GLAMO_CLOCK_MPEG_ENC_RESET = 0x1000,
+ GLAMO_CLOCK_MPEG_DEC_RESET = 0x2000,
+};
+
+enum glamo_reg_clock51 {
+ GLAMO_CLOCK_GEN51_EN_DIV_MCLK = 0x0001,
+ GLAMO_CLOCK_GEN51_EN_DIV_SCLK = 0x0002,
+ GLAMO_CLOCK_GEN51_EN_DIV_JCLK = 0x0004,
+ GLAMO_CLOCK_GEN51_EN_DIV_DCLK = 0x0008,
+ GLAMO_CLOCK_GEN51_EN_DIV_DMCLK = 0x0010,
+ GLAMO_CLOCK_GEN51_EN_DIV_DHCLK = 0x0020,
+ GLAMO_CLOCK_GEN51_EN_DIV_GCLK = 0x0040,
+ GLAMO_CLOCK_GEN51_EN_DIV_TCLK = 0x0080,
+ /* FIXME: higher bits */
+};
+
+enum glamo_reg_hostbus2 {
+ GLAMO_HOSTBUS2_MMIO_EN_ISP = 0x0001,
+ GLAMO_HOSTBUS2_MMIO_EN_JPEG = 0x0002,
+ GLAMO_HOSTBUS2_MMIO_EN_MPEG = 0x0004,
+ GLAMO_HOSTBUS2_MMIO_EN_LCD = 0x0008,
+ GLAMO_HOSTBUS2_MMIO_EN_MMC = 0x0010,
+ GLAMO_HOSTBUS2_MMIO_EN_MICROP0 = 0x0020,
+ GLAMO_HOSTBUS2_MMIO_EN_MICROP1 = 0x0040,
+ GLAMO_HOSTBUS2_MMIO_EN_CQ = 0x0080,
+ GLAMO_HOSTBUS2_MMIO_EN_RISC = 0x0100,
+ GLAMO_HOSTBUS2_MMIO_EN_2D = 0x0200,
+ GLAMO_HOSTBUS2_MMIO_EN_3D = 0x0400,
+};
+
+/* LCD Controller */
+
+#define REG_LCD(x) (x)
+enum glamo_reg_lcd {
+ GLAMO_REG_LCD_MODE1 = REG_LCD(0x00),
+ GLAMO_REG_LCD_MODE2 = REG_LCD(0x02),
+ GLAMO_REG_LCD_MODE3 = REG_LCD(0x04),
+ GLAMO_REG_LCD_WIDTH = REG_LCD(0x06),
+ GLAMO_REG_LCD_HEIGHT = REG_LCD(0x08),
+ GLAMO_REG_LCD_POLARITY = REG_LCD(0x0a),
+ GLAMO_REG_LCD_A_BASE1 = REG_LCD(0x0c),
+ GLAMO_REG_LCD_A_BASE2 = REG_LCD(0x0e),
+ GLAMO_REG_LCD_B_BASE1 = REG_LCD(0x10),
+ GLAMO_REG_LCD_B_BASE2 = REG_LCD(0x12),
+ GLAMO_REG_LCD_C_BASE1 = REG_LCD(0x14),
+ GLAMO_REG_LCD_C_BASE2 = REG_LCD(0x16),
+ GLAMO_REG_LCD_PITCH = REG_LCD(0x18),
+ /* RES */
+ GLAMO_REG_LCD_HORIZ_TOTAL = REG_LCD(0x1c),
+ /* RES */
+ GLAMO_REG_LCD_HORIZ_RETR_START = REG_LCD(0x20),
+ /* RES */
+ GLAMO_REG_LCD_HORIZ_RETR_END = REG_LCD(0x24),
+ /* RES */
+ GLAMO_REG_LCD_HORIZ_DISP_START = REG_LCD(0x28),
+ /* RES */
+ GLAMO_REG_LCD_HORIZ_DISP_END = REG_LCD(0x2c),
+ /* RES */
+ GLAMO_REG_LCD_VERT_TOTAL = REG_LCD(0x30),
+ /* RES */
+ GLAMO_REG_LCD_VERT_RETR_START = REG_LCD(0x34),
+ /* RES */
+ GLAMO_REG_LCD_VERT_RETR_END = REG_LCD(0x38),
+ /* RES */
+ GLAMO_REG_LCD_VERT_DISP_START = REG_LCD(0x3c),
+ /* RES */
+ GLAMO_REG_LCD_VERT_DISP_END = REG_LCD(0x40),
+ /* RES */
+ GLAMO_REG_LCD_POL = REG_LCD(0x44),
+ GLAMO_REG_LCD_DATA_START = REG_LCD(0x46),
+ GLAMO_REG_LCD_FRATE_CONTRO = REG_LCD(0x48),
+ GLAMO_REG_LCD_DATA_CMD_HDR = REG_LCD(0x4a),
+ GLAMO_REG_LCD_SP_START = REG_LCD(0x4c),
+ GLAMO_REG_LCD_SP_END = REG_LCD(0x4e),
+ GLAMO_REG_LCD_CURSOR_BASE1 = REG_LCD(0x50),
+ GLAMO_REG_LCD_CURSOR_BASE2 = REG_LCD(0x52),
+ GLAMO_REG_LCD_CURSOR_PITCH = REG_LCD(0x54),
+ GLAMO_REG_LCD_CURSOR_X_SIZE = REG_LCD(0x56),
+ GLAMO_REG_LCD_CURSOR_Y_SIZE = REG_LCD(0x58),
+ GLAMO_REG_LCD_CURSOR_X_POS = REG_LCD(0x5a),
+ GLAMO_REG_LCD_CURSOR_Y_POS = REG_LCD(0x5c),
+ GLAMO_REG_LCD_CURSOR_PRESET = REG_LCD(0x5e),
+ GLAMO_REG_LCD_CURSOR_FG_COLOR = REG_LCD(0x60),
+ /* RES */
+ GLAMO_REG_LCD_CURSOR_BG_COLOR = REG_LCD(0x64),
+ /* RES */
+ GLAMO_REG_LCD_CURSOR_DST_COLOR = REG_LCD(0x68),
+ /* RES */
+ GLAMO_REG_LCD_STATUS1 = REG_LCD(0x80),
+ GLAMO_REG_LCD_STATUS2 = REG_LCD(0x82),
+ GLAMO_REG_LCD_STATUS3 = REG_LCD(0x84),
+ GLAMO_REG_LCD_STATUS4 = REG_LCD(0x86),
+ /* RES */
+ GLAMO_REG_LCD_COMMAND1 = REG_LCD(0xa0),
+ GLAMO_REG_LCD_COMMAND2 = REG_LCD(0xa2),
+ /* RES */
+ GLAMO_REG_LCD_WFORM_DELAY1 = REG_LCD(0xb0),
+ GLAMO_REG_LCD_WFORM_DELAY2 = REG_LCD(0xb2),
+ /* RES */
+ GLAMO_REG_LCD_GAMMA_CORR = REG_LCD(0x100),
+ /* RES */
+ GLAMO_REG_LCD_GAMMA_R_ENTRY01 = REG_LCD(0x110),
+ GLAMO_REG_LCD_GAMMA_R_ENTRY23 = REG_LCD(0x112),
+ GLAMO_REG_LCD_GAMMA_R_ENTRY45 = REG_LCD(0x114),
+ GLAMO_REG_LCD_GAMMA_R_ENTRY67 = REG_LCD(0x116),
+ GLAMO_REG_LCD_GAMMA_R_ENTRY8 = REG_LCD(0x118),
+ /* RES */
+ GLAMO_REG_LCD_GAMMA_G_ENTRY01 = REG_LCD(0x130),
+ GLAMO_REG_LCD_GAMMA_G_ENTRY23 = REG_LCD(0x132),
+ GLAMO_REG_LCD_GAMMA_G_ENTRY45 = REG_LCD(0x134),
+ GLAMO_REG_LCD_GAMMA_G_ENTRY67 = REG_LCD(0x136),
+ GLAMO_REG_LCD_GAMMA_G_ENTRY8 = REG_LCD(0x138),
+ /* RES */
+ GLAMO_REG_LCD_GAMMA_B_ENTRY01 = REG_LCD(0x150),
+ GLAMO_REG_LCD_GAMMA_B_ENTRY23 = REG_LCD(0x152),
+ GLAMO_REG_LCD_GAMMA_B_ENTRY45 = REG_LCD(0x154),
+ GLAMO_REG_LCD_GAMMA_B_ENTRY67 = REG_LCD(0x156),
+ GLAMO_REG_LCD_GAMMA_B_ENTRY8 = REG_LCD(0x158),
+ /* RES */
+ GLAMO_REG_LCD_SRAM_DRIVING1 = REG_LCD(0x160),
+ GLAMO_REG_LCD_SRAM_DRIVING2 = REG_LCD(0x162),
+ GLAMO_REG_LCD_SRAM_DRIVING3 = REG_LCD(0x164),
+};
+
+enum glamo_reg_lcd_mode1 {
+ GLAMO_LCD_MODE1_PWRSAVE = 0x0001,
+ GLAMO_LCD_MODE1_PARTIAL_PRT = 0x0002,
+ GLAMO_LCD_MODE1_HWFLIP = 0x0004,
+ GLAMO_LCD_MODE1_LCD2 = 0x0008,
+ /* RES */
+ GLAMO_LCD_MODE1_PARTIAL_MODE = 0x0020,
+ GLAMO_LCD_MODE1_CURSOR_DSTCOLOR = 0x0040,
+ GLAMO_LCD_MODE1_PARTIAL_ENABLE = 0x0080,
+ GLAMO_LCD_MODE1_TVCLK_IN_ENABLE = 0x0100,
+ GLAMO_LCD_MODE1_HSYNC_HIGH_ACT = 0x0200,
+ GLAMO_LCD_MODE1_VSYNC_HIGH_ACT = 0x0400,
+ GLAMO_LCD_MODE1_HSYNC_FLIP = 0x0800,
+ GLAMO_LCD_MODE1_GAMMA_COR_EN = 0x1000,
+ GLAMO_LCD_MODE1_DITHER_EN = 0x2000,
+ GLAMO_LCD_MODE1_CURSOR_EN = 0x4000,
+ GLAMO_LCD_MODE1_ROTATE_EN = 0x8000,
+};
+
+enum glamo_reg_lcd_mode2 {
+ GLAMO_LCD_MODE2_CRC_CHECK_EN = 0x0001,
+ GLAMO_LCD_MODE2_DCMD_PER_LINE = 0x0002,
+ GLAMO_LCD_MODE2_NOUSE_BDEF = 0x0004,
+ GLAMO_LCD_MODE2_OUT_POS_MODE = 0x0008,
+ GLAMO_LCD_MODE2_FRATE_CTRL_EN = 0x0010,
+ GLAMO_LCD_MODE2_SINGLE_BUFFER = 0x0020,
+ GLAMO_LCD_MODE2_SER_LSB_TO_MSB = 0x0040,
+ /* FIXME */
+};
+
+enum glamo_reg_lcd_mode3 {
+ /* LCD color source data format */
+ GLAMO_LCD_SRC_RGB565 = 0x0000,
+ GLAMO_LCD_SRC_ARGB1555 = 0x4000,
+ GLAMO_LCD_SRC_ARGB4444 = 0x8000,
+ /* interface type */
+ GLAMO_LCD_MODE3_LCD = 0x1000,
+ GLAMO_LCD_MODE3_RGB = 0x0800,
+ GLAMO_LCD_MODE3_CPU = 0x0000,
+ /* mode */
+ GLAMO_LCD_MODE3_RGB332 = 0x0000,
+ GLAMO_LCD_MODE3_RGB444 = 0x0100,
+ GLAMO_LCD_MODE3_RGB565 = 0x0200,
+ GLAMO_LCD_MODE3_RGB666 = 0x0300,
+ /* depth */
+ GLAMO_LCD_MODE3_6BITS = 0x0000,
+ GLAMO_LCD_MODE3_8BITS = 0x0010,
+ GLAMO_LCD_MODE3_9BITS = 0x0020,
+ GLAMO_LCD_MODE3_16BITS = 0x0030,
+ GLAMO_LCD_MODE3_18BITS = 0x0040,
+};
+
+enum glamo_lcd_rot_mode {
+ GLAMO_LCD_ROT_MODE_0 = 0x0000,
+ GLAMO_LCD_ROT_MODE_180 = 0x2000,
+ GLAMO_LCD_ROT_MODE_MIRROR = 0x4000,
+ GLAMO_LCD_ROT_MODE_FLIP = 0x6000,
+ GLAMO_LCD_ROT_MODE_90 = 0x8000,
+ GLAMO_LCD_ROT_MODE_270 = 0xa000,
+};
+#define GLAMO_LCD_ROT_MODE_MASK 0xe000
+
+enum glamo_lcd_cmd_type {
+ GLAMO_LCD_CMD_TYPE_DISP = 0x0000,
+ GLAMO_LCD_CMD_TYPE_PARALLEL = 0x4000,
+ GLAMO_LCD_CMD_TYPE_SERIAL = 0x8000,
+ GLAMO_LCD_CMD_TYPE_SERIAL_DIRECT = 0xc000,
+};
+#define GLAMO_LCD_CMD_TYPE_MASK 0xc000
+
+enum glamo_lcd_cmds {
+ GLAMO_LCD_CMD_DATA_DISP_FIRE = 0x00,
+ GLAMO_LCD_CMD_DATA_DISP_SYNC = 0x01, /* RGB only */
+ /* switch to command mode, no display */
+ GLAMO_LCD_CMD_DATA_FIRE_NO_DISP = 0x02,
+ /* display until VSYNC, switch to command */
+ GLAMO_LCD_CMD_DATA_FIRE_VSYNC = 0x11,
+ /* display until HSYNC, switch to command */
+ GLAMO_LCD_CMD_DATA_FIRE_HSYNC = 0x12,
+ /* display until VSYNC, 1 black frame, VSYNC, switch to command */
+ GLAMO_LCD_CMD_DATA_FIRE_VSYNC_B = 0x13,
+ /* don't care about display and switch to command */
+ GLAMO_LCD_CMD_DATA_FIRE_FREE = 0x14, /* RGB only */
+ /* don't care about display, keep data display but disable data,
+ * and switch to command */
+ GLAMO_LCD_CMD_DATA_FIRE_FREE_D = 0x15, /* RGB only */
+};
+
+enum glamo_core_revisions {
+ GLAMO_CORE_REV_A0 = 0x0000,
+ GLAMO_CORE_REV_A1 = 0x0001,
+ GLAMO_CORE_REV_A2 = 0x0002,
+ GLAMO_CORE_REV_A3 = 0x0003,
+};
+
+#endif /* _GLAMO_REGS_H */
diff --git a/drivers/mfd/pcf50633-adc.c b/drivers/mfd/pcf50633-adc.c
index fe8f922f665..aed0d2a9b03 100644
--- a/drivers/mfd/pcf50633-adc.c
+++ b/drivers/mfd/pcf50633-adc.c
@@ -30,13 +30,13 @@
struct pcf50633_adc_request {
int mux;
int avg;
- int result;
void (*callback)(struct pcf50633 *, void *, int);
void *callback_param;
+};
- /* Used in case of sync requests */
+struct pcf50633_adc_sync_request {
+ int result;
struct completion completion;
-
};
#define PCF50633_MAX_ADC_FIFO_DEPTH 8
@@ -109,10 +109,10 @@ adc_enqueue_request(struct pcf50633 *pcf, struct pcf50633_adc_request *req)
return 0;
}
-static void
-pcf50633_adc_sync_read_callback(struct pcf50633 *pcf, void *param, int result)
+static void pcf50633_adc_sync_read_callback(struct pcf50633 *pcf, void *param,
+ int result)
{
- struct pcf50633_adc_request *req = param;
+ struct pcf50633_adc_sync_request *req = param;
req->result = result;
complete(&req->completion);
@@ -120,28 +120,19 @@ pcf50633_adc_sync_read_callback(struct pcf50633 *pcf, void *param, int result)
int pcf50633_adc_sync_read(struct pcf50633 *pcf, int mux, int avg)
{
- struct pcf50633_adc_request *req;
- int err;
+ struct pcf50633_adc_sync_request req;
+ int ret;
- /* req is freed when the result is ready, in interrupt handler */
- req = kzalloc(sizeof(*req), GFP_KERNEL);
- if (!req)
- return -ENOMEM;
-
- req->mux = mux;
- req->avg = avg;
- req->callback = pcf50633_adc_sync_read_callback;
- req->callback_param = req;
+ init_completion(&req.completion);
- init_completion(&req->completion);
- err = adc_enqueue_request(pcf, req);
- if (err)
- return err;
+ ret = pcf50633_adc_async_read(pcf, mux, avg,
+ pcf50633_adc_sync_read_callback, &req);
+ if (ret)
+ return ret;
- wait_for_completion(&req->completion);
+ wait_for_completion(&req.completion);
- /* FIXME by this time req might be already freed */
- return req->result;
+ return req.result;
}
EXPORT_SYMBOL_GPL(pcf50633_adc_sync_read);
diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
index 63a614d696c..9c14dbf02b0 100644
--- a/drivers/mfd/pcf50633-core.c
+++ b/drivers/mfd/pcf50633-core.c
@@ -21,16 +21,16 @@
#include <linux/workqueue.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
-#include <linux/irq.h>
#include <linux/slab.h>
#include <linux/mfd/pcf50633/core.h>
-/* Two MBCS registers used during cold start */
-#define PCF50633_REG_MBCS1 0x4b
-#define PCF50633_REG_MBCS2 0x4c
-#define PCF50633_MBCS1_USBPRES 0x01
-#define PCF50633_MBCS1_ADAPTPRES 0x01
+int pcf50633_irq_init(struct pcf50633 *pcf, int irq);
+void pcf50633_irq_free(struct pcf50633 *pcf);
+#ifdef CONFIG_PM
+int pcf50633_irq_suspend(struct pcf50633 *pcf);
+int pcf50633_irq_resume(struct pcf50633 *pcf);
+#endif
static int __pcf50633_read(struct pcf50633 *pcf, u8 reg, int num, u8 *data)
{
@@ -215,247 +215,9 @@ static struct attribute_group pcf_attr_group = {
.attrs = pcf_sysfs_entries,
};
-int pcf50633_register_irq(struct pcf50633 *pcf, int irq,
- void (*handler) (int, void *), void *data)
-{
- if (irq < 0 || irq > PCF50633_NUM_IRQ || !handler)
- return -EINVAL;
-
- if (WARN_ON(pcf->irq_handler[irq].handler))
- return -EBUSY;
-
- mutex_lock(&pcf->lock);
- pcf->irq_handler[irq].handler = handler;
- pcf->irq_handler[irq].data = data;
- mutex_unlock(&pcf->lock);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(pcf50633_register_irq);
-
-int pcf50633_free_irq(struct pcf50633 *pcf, int irq)
-{
- if (irq < 0 || irq > PCF50633_NUM_IRQ)
- return -EINVAL;
-
- mutex_lock(&pcf->lock);
- pcf->irq_handler[irq].handler = NULL;
- mutex_unlock(&pcf->lock);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(pcf50633_free_irq);
-
-static int __pcf50633_irq_mask_set(struct pcf50633 *pcf, int irq, u8 mask)
-{
- u8 reg, bits, tmp;
- int ret = 0, idx;
-
- idx = irq >> 3;
- reg = PCF50633_REG_INT1M + idx;
- bits = 1 << (irq & 0x07);
-
- mutex_lock(&pcf->lock);
-
- if (mask) {
- ret = __pcf50633_read(pcf, reg, 1, &tmp);
- if (ret < 0)
- goto out;
-
- tmp |= bits;
-
- ret = __pcf50633_write(pcf, reg, 1, &tmp);
- if (ret < 0)
- goto out;
-
- pcf->mask_regs[idx] &= ~bits;
- pcf->mask_regs[idx] |= bits;
- } else {
- ret = __pcf50633_read(pcf, reg, 1, &tmp);
- if (ret < 0)
- goto out;
-
- tmp &= ~bits;
-
- ret = __pcf50633_write(pcf, reg, 1, &tmp);
- if (ret < 0)
- goto out;
-
- pcf->mask_regs[idx] &= ~bits;
- }
-out:
- mutex_unlock(&pcf->lock);
-
- return ret;
-}
-
-int pcf50633_irq_mask(struct pcf50633 *pcf, int irq)
-{
- dev_dbg(pcf->dev, "Masking IRQ %d\n", irq);
-
- return __pcf50633_irq_mask_set(pcf, irq, 1);
-}
-EXPORT_SYMBOL_GPL(pcf50633_irq_mask);
-
-int pcf50633_irq_unmask(struct pcf50633 *pcf, int irq)
-{
- dev_dbg(pcf->dev, "Unmasking IRQ %d\n", irq);
-
- return __pcf50633_irq_mask_set(pcf, irq, 0);
-}
-EXPORT_SYMBOL_GPL(pcf50633_irq_unmask);
-
-int pcf50633_irq_mask_get(struct pcf50633 *pcf, int irq)
-{
- u8 reg, bits;
-
- reg = irq >> 3;
- bits = 1 << (irq & 0x07);
-
- return pcf->mask_regs[reg] & bits;
-}
-EXPORT_SYMBOL_GPL(pcf50633_irq_mask_get);
-
-static void pcf50633_irq_call_handler(struct pcf50633 *pcf, int irq)
-{
- if (pcf->irq_handler[irq].handler)
- pcf->irq_handler[irq].handler(irq, pcf->irq_handler[irq].data);
-}
-
-/* Maximum amount of time ONKEY is held before emergency action is taken */
-#define PCF50633_ONKEY1S_TIMEOUT 8
-
-static void pcf50633_irq_worker(struct work_struct *work)
-{
- struct pcf50633 *pcf;
- int ret, i, j;
- u8 pcf_int[5], chgstat;
-
- pcf = container_of(work, struct pcf50633, irq_work);
-
- /* Read the 5 INT regs in one transaction */
- ret = pcf50633_read_block(pcf, PCF50633_REG_INT1,
- ARRAY_SIZE(pcf_int), pcf_int);
- if (ret != ARRAY_SIZE(pcf_int)) {
- dev_err(pcf->dev, "Error reading INT registers\n");
-
- /*
- * If this doesn't ACK the interrupt to the chip, we'll be
- * called once again as we're level triggered.
- */
- goto out;
- }
-
- /* defeat 8s death from lowsys on A5 */
- pcf50633_reg_write(pcf, PCF50633_REG_OOCSHDWN, 0x04);
-
- /* We immediately read the usb and adapter status. We thus make sure
- * only of USBINS/USBREM IRQ handlers are called */
- if (pcf_int[0] & (PCF50633_INT1_USBINS | PCF50633_INT1_USBREM)) {
- chgstat = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2);
- if (chgstat & (0x3 << 4))
- pcf_int[0] &= ~(1 << PCF50633_INT1_USBREM);
- else
- pcf_int[0] &= ~(1 << PCF50633_INT1_USBINS);
- }
-
- /* Make sure only one of ADPINS or ADPREM is set */
- if (pcf_int[0] & (PCF50633_INT1_ADPINS | PCF50633_INT1_ADPREM)) {
- chgstat = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2);
- if (chgstat & (0x3 << 4))
- pcf_int[0] &= ~(1 << PCF50633_INT1_ADPREM);
- else
- pcf_int[0] &= ~(1 << PCF50633_INT1_ADPINS);
- }
-
- dev_dbg(pcf->dev, "INT1=0x%02x INT2=0x%02x INT3=0x%02x "
- "INT4=0x%02x INT5=0x%02x\n", pcf_int[0],
- pcf_int[1], pcf_int[2], pcf_int[3], pcf_int[4]);
-
- /* Some revisions of the chip don't have a 8s standby mode on
- * ONKEY1S press. We try to manually do it in such cases. */
- if ((pcf_int[0] & PCF50633_INT1_SECOND) && pcf->onkey1s_held) {
- dev_info(pcf->dev, "ONKEY1S held for %d secs\n",
- pcf->onkey1s_held);
- if (pcf->onkey1s_held++ == PCF50633_ONKEY1S_TIMEOUT)
- if (pcf->pdata->force_shutdown)
- pcf->pdata->force_shutdown(pcf);
- }
-
- if (pcf_int[2] & PCF50633_INT3_ONKEY1S) {
- dev_info(pcf->dev, "ONKEY1S held\n");
- pcf->onkey1s_held = 1 ;
-
- /* Unmask IRQ_SECOND */
- pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT1M,
- PCF50633_INT1_SECOND);
-
- /* Unmask IRQ_ONKEYR */
- pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT2M,
- PCF50633_INT2_ONKEYR);
- }
-
- if ((pcf_int[1] & PCF50633_INT2_ONKEYR) && pcf->onkey1s_held) {
- pcf->onkey1s_held = 0;
-
- /* Mask SECOND and ONKEYR interrupts */
- if (pcf->mask_regs[0] & PCF50633_INT1_SECOND)
- pcf50633_reg_set_bit_mask(pcf,
- PCF50633_REG_INT1M,
- PCF50633_INT1_SECOND,
- PCF50633_INT1_SECOND);
-
- if (pcf->mask_regs[1] & PCF50633_INT2_ONKEYR)
- pcf50633_reg_set_bit_mask(pcf,
- PCF50633_REG_INT2M,
- PCF50633_INT2_ONKEYR,
- PCF50633_INT2_ONKEYR);
- }
-
- /* Have we just resumed ? */
- if (pcf->is_suspended) {
- pcf->is_suspended = 0;
-
- /* Set the resume reason filtering out non resumers */
- for (i = 0; i < ARRAY_SIZE(pcf_int); i++)
- pcf->resume_reason[i] = pcf_int[i] &
- pcf->pdata->resumers[i];
-
- /* Make sure we don't pass on any ONKEY events to
- * userspace now */
- pcf_int[1] &= ~(PCF50633_INT2_ONKEYR | PCF50633_INT2_ONKEYF);
- }
-
- for (i = 0; i < ARRAY_SIZE(pcf_int); i++) {
- /* Unset masked interrupts */
- pcf_int[i] &= ~pcf->mask_regs[i];
-
- for (j = 0; j < 8 ; j++)
- if (pcf_int[i] & (1 << j))
- pcf50633_irq_call_handler(pcf, (i * 8) + j);
- }
-
-out:
- put_device(pcf->dev);
- enable_irq(pcf->irq);
-}
-
-static irqreturn_t pcf50633_irq(int irq, void *data)
-{
- struct pcf50633 *pcf = data;
-
- dev_dbg(pcf->dev, "pcf50633_irq\n");
-
- get_device(pcf->dev);
- disable_irq_nosync(pcf->irq);
- queue_work(pcf->work_queue, &pcf->irq_work);
-
- return IRQ_HANDLED;
-}
-
static void
pcf50633_client_dev_register(struct pcf50633 *pcf, const char *name,
- struct platform_device **pdev)
+ struct platform_device **pdev)
{
int ret;
@@ -479,70 +241,17 @@ pcf50633_client_dev_register(struct pcf50633 *pcf, const char *name,
static int pcf50633_suspend(struct i2c_client *client, pm_message_t state)
{
struct pcf50633 *pcf;
- int ret = 0, i;
- u8 res[5];
-
pcf = i2c_get_clientdata(client);
- /* Make sure our interrupt handlers are not called
- * henceforth */
- disable_irq(pcf->irq);
-
- /* Make sure that any running IRQ worker has quit */
- cancel_work_sync(&pcf->irq_work);
-
- /* Save the masks */
- ret = pcf50633_read_block(pcf, PCF50633_REG_INT1M,
- ARRAY_SIZE(pcf->suspend_irq_masks),
- pcf->suspend_irq_masks);
- if (ret < 0) {
- dev_err(pcf->dev, "error saving irq masks\n");
- goto out;
- }
-
- /* Write wakeup irq masks */
- for (i = 0; i < ARRAY_SIZE(res); i++)
- res[i] = ~pcf->pdata->resumers[i];
-
- ret = pcf50633_write_block(pcf, PCF50633_REG_INT1M,
- ARRAY_SIZE(res), &res[0]);
- if (ret < 0) {
- dev_err(pcf->dev, "error writing wakeup irq masks\n");
- goto out;
- }
-
- pcf->is_suspended = 1;
-
-out:
- return ret;
+ return pcf50633_irq_suspend(pcf);
}
static int pcf50633_resume(struct i2c_client *client)
{
struct pcf50633 *pcf;
- int ret;
-
pcf = i2c_get_clientdata(client);
- /* Write the saved mask registers */
- ret = pcf50633_write_block(pcf, PCF50633_REG_INT1M,
- ARRAY_SIZE(pcf->suspend_irq_masks),
- pcf->suspend_irq_masks);
- if (ret < 0)
- dev_err(pcf->dev, "Error restoring saved suspend masks\n");
-
- /* Restore regulators' state */
-
-
- get_device(pcf->dev);
-
- /*
- * Clear any pending interrupts and set resume reason if any.
- * This will leave with enable_irq()
- */
- pcf50633_irq_worker(&pcf->irq_work);
-
- return 0;
+ return pcf50633_irq_resume(pcf);
}
#else
#define pcf50633_suspend NULL
@@ -573,43 +282,19 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
i2c_set_clientdata(client, pcf);
pcf->dev = &client->dev;
pcf->i2c_client = client;
- pcf->irq = client->irq;
- pcf->work_queue = create_singlethread_workqueue("pcf50633");
-
- if (!pcf->work_queue) {
- dev_err(&client->dev, "Failed to alloc workqueue\n");
- ret = -ENOMEM;
- goto err_free;
- }
-
- INIT_WORK(&pcf->irq_work, pcf50633_irq_worker);
version = pcf50633_reg_read(pcf, 0);
variant = pcf50633_reg_read(pcf, 1);
if (version < 0 || variant < 0) {
dev_err(pcf->dev, "Unable to probe pcf50633\n");
ret = -ENODEV;
- goto err_destroy_workqueue;
+ goto err_free;
}
dev_info(pcf->dev, "Probed device version %d variant %d\n",
version, variant);
- /* Enable all interrupts except RTC SECOND */
- pcf->mask_regs[0] = 0x80;
- pcf50633_reg_write(pcf, PCF50633_REG_INT1M, pcf->mask_regs[0]);
- pcf50633_reg_write(pcf, PCF50633_REG_INT2M, 0x00);
- pcf50633_reg_write(pcf, PCF50633_REG_INT3M, 0x00);
- pcf50633_reg_write(pcf, PCF50633_REG_INT4M, 0x00);
- pcf50633_reg_write(pcf, PCF50633_REG_INT5M, 0x00);
-
- ret = request_irq(client->irq, pcf50633_irq,
- IRQF_TRIGGER_LOW, "pcf50633", pcf);
-
- if (ret) {
- dev_err(pcf->dev, "Failed to request IRQ %d\n", ret);
- goto err_destroy_workqueue;
- }
+ pcf50633_irq_init(pcf, client->irq);
/* Create sub devices */
pcf50633_client_dev_register(pcf, "pcf50633-input",
@@ -620,6 +305,10 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
&pcf->mbc_pdev);
pcf50633_client_dev_register(pcf, "pcf50633-adc",
&pcf->adc_pdev);
+ pcf50633_client_dev_register(pcf, "pcf50633-backlight",
+ &pcf->bl_pdev);
+ pcf50633_client_dev_register(pcf, "pcf50633-gpio",
+ &pcf->gpio_pdev);
for (i = 0; i < PCF50633_NUM_REGULATORS; i++) {
struct platform_device *pdev;
@@ -638,10 +327,6 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
platform_device_add(pdev);
}
- if (enable_irq_wake(client->irq) < 0)
- dev_err(pcf->dev, "IRQ %u cannot be enabled as wake-up source"
- "in this hardware revision", client->irq);
-
ret = sysfs_create_group(&client->dev.kobj, &pcf_attr_group);
if (ret)
dev_err(pcf->dev, "error creating sysfs entries\n");
@@ -651,8 +336,6 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
return 0;
-err_destroy_workqueue:
- destroy_workqueue(pcf->work_queue);
err_free:
i2c_set_clientdata(client, NULL);
kfree(pcf);
@@ -665,9 +348,9 @@ static int __devexit pcf50633_remove(struct i2c_client *client)
struct pcf50633 *pcf = i2c_get_clientdata(client);
int i;
- free_irq(pcf->irq, pcf);
- destroy_workqueue(pcf->work_queue);
+ pcf50633_irq_free(pcf);
+ platform_device_unregister(pcf->gpio_pdev);
platform_device_unregister(pcf->input_pdev);
platform_device_unregister(pcf->rtc_pdev);
platform_device_unregister(pcf->mbc_pdev);
diff --git a/drivers/mfd/pcf50633-gpio.c b/drivers/mfd/pcf50633-gpio.c
deleted file mode 100644
index 9ab19a8f669..00000000000
--- a/drivers/mfd/pcf50633-gpio.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/* NXP PCF50633 GPIO Driver
- *
- * (C) 2006-2008 by Openmoko, Inc.
- * Author: Balaji Rao <balajirrao@openmoko.org>
- * All rights reserved.
- *
- * Broken down from monstrous PCF50633 driver mainly by
- * Harald Welte, Andy Green and Werner Almesberger
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-
-#include <linux/mfd/pcf50633/core.h>
-#include <linux/mfd/pcf50633/gpio.h>
-
-enum pcf50633_regulator_id {
- PCF50633_REGULATOR_AUTO,
- PCF50633_REGULATOR_DOWN1,
- PCF50633_REGULATOR_DOWN2,
- PCF50633_REGULATOR_LDO1,
- PCF50633_REGULATOR_LDO2,
- PCF50633_REGULATOR_LDO3,
- PCF50633_REGULATOR_LDO4,
- PCF50633_REGULATOR_LDO5,
- PCF50633_REGULATOR_LDO6,
- PCF50633_REGULATOR_HCLDO,
- PCF50633_REGULATOR_MEMLDO,
-};
-
-#define PCF50633_REG_AUTOOUT 0x1a
-#define PCF50633_REG_DOWN1OUT 0x1e
-#define PCF50633_REG_DOWN2OUT 0x22
-#define PCF50633_REG_MEMLDOOUT 0x26
-#define PCF50633_REG_LDO1OUT 0x2d
-#define PCF50633_REG_LDO2OUT 0x2f
-#define PCF50633_REG_LDO3OUT 0x31
-#define PCF50633_REG_LDO4OUT 0x33
-#define PCF50633_REG_LDO5OUT 0x35
-#define PCF50633_REG_LDO6OUT 0x37
-#define PCF50633_REG_HCLDOOUT 0x39
-
-static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
- [PCF50633_REGULATOR_AUTO] = PCF50633_REG_AUTOOUT,
- [PCF50633_REGULATOR_DOWN1] = PCF50633_REG_DOWN1OUT,
- [PCF50633_REGULATOR_DOWN2] = PCF50633_REG_DOWN2OUT,
- [PCF50633_REGULATOR_MEMLDO] = PCF50633_REG_MEMLDOOUT,
- [PCF50633_REGULATOR_LDO1] = PCF50633_REG_LDO1OUT,
- [PCF50633_REGULATOR_LDO2] = PCF50633_REG_LDO2OUT,
- [PCF50633_REGULATOR_LDO3] = PCF50633_REG_LDO3OUT,
- [PCF50633_REGULATOR_LDO4] = PCF50633_REG_LDO4OUT,
- [PCF50633_REGULATOR_LDO5] = PCF50633_REG_LDO5OUT,
- [PCF50633_REGULATOR_LDO6] = PCF50633_REG_LDO6OUT,
- [PCF50633_REGULATOR_HCLDO] = PCF50633_REG_HCLDOOUT,
-};
-
-int pcf50633_gpio_set(struct pcf50633 *pcf, int gpio, u8 val)
-{
- u8 reg;
-
- reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
-
- return pcf50633_reg_set_bit_mask(pcf, reg, 0x07, val);
-}
-EXPORT_SYMBOL_GPL(pcf50633_gpio_set);
-
-u8 pcf50633_gpio_get(struct pcf50633 *pcf, int gpio)
-{
- u8 reg, val;
-
- reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
- val = pcf50633_reg_read(pcf, reg) & 0x07;
-
- return val;
-}
-EXPORT_SYMBOL_GPL(pcf50633_gpio_get);
-
-int pcf50633_gpio_invert_set(struct pcf50633 *pcf, int gpio, int invert)
-{
- u8 val, reg;
-
- reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
- val = !!invert << 3;
-
- return pcf50633_reg_set_bit_mask(pcf, reg, 1 << 3, val);
-}
-EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_set);
-
-int pcf50633_gpio_invert_get(struct pcf50633 *pcf, int gpio)
-{
- u8 reg, val;
-
- reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
- val = pcf50633_reg_read(pcf, reg);
-
- return val & (1 << 3);
-}
-EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_get);
-
-int pcf50633_gpio_power_supply_set(struct pcf50633 *pcf,
- int gpio, int regulator, int on)
-{
- u8 reg, val, mask;
-
- /* the *ENA register is always one after the *OUT register */
- reg = pcf50633_regulator_registers[regulator] + 1;
-
- val = !!on << (gpio - PCF50633_GPIO1);
- mask = 1 << (gpio - PCF50633_GPIO1);
-
- return pcf50633_reg_set_bit_mask(pcf, reg, mask, val);
-}
-EXPORT_SYMBOL_GPL(pcf50633_gpio_power_supply_set);
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/pcf50633-irq.c b/drivers/mfd/pcf50633-irq.c
new file mode 100644
index 00000000000..c1923cf1b06
--- /dev/null
+++ b/drivers/mfd/pcf50633-irq.c
@@ -0,0 +1,319 @@
+/* NXP PCF50633 Power Management Unit (PMU) driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Harald Welte <laforge@openmoko.org>
+ * Balaji Rao <balajirrao@openmoko.org>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+
+#include <linux/mfd/pcf50633/core.h>
+
+/* Two MBCS registers used during cold start */
+#define PCF50633_REG_MBCS1 0x4b
+#define PCF50633_REG_MBCS2 0x4c
+#define PCF50633_MBCS1_USBPRES 0x01
+#define PCF50633_MBCS1_ADAPTPRES 0x01
+
+int pcf50633_register_irq(struct pcf50633 *pcf, int irq,
+ void (*handler) (int, void *), void *data)
+{
+ if (irq < 0 || irq > PCF50633_NUM_IRQ || !handler)
+ return -EINVAL;
+
+ if (WARN_ON(pcf->irq_handler[irq].handler))
+ return -EBUSY;
+
+ mutex_lock(&pcf->lock);
+ pcf->irq_handler[irq].handler = handler;
+ pcf->irq_handler[irq].data = data;
+ mutex_unlock(&pcf->lock);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(pcf50633_register_irq);
+
+int pcf50633_free_irq(struct pcf50633 *pcf, int irq)
+{
+ if (irq < 0 || irq > PCF50633_NUM_IRQ)
+ return -EINVAL;
+
+ mutex_lock(&pcf->lock);
+ pcf->irq_handler[irq].handler = NULL;
+ mutex_unlock(&pcf->lock);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(pcf50633_free_irq);
+
+static int __pcf50633_irq_mask_set(struct pcf50633 *pcf, int irq, u8 mask)
+{
+ u8 reg, bit;
+ int ret = 0, idx;
+
+ idx = irq >> 3;
+ reg = PCF50633_REG_INT1M + idx;
+ bit = 1 << (irq & 0x07);
+
+ pcf50633_reg_set_bit_mask(pcf, reg, bit, mask ? bit : 0);
+
+ mutex_lock(&pcf->lock);
+
+ if (mask)
+ pcf->mask_regs[idx] |= bit;
+ else
+ pcf->mask_regs[idx] &= ~bit;
+
+ mutex_unlock(&pcf->lock);
+
+ return ret;
+}
+
+int pcf50633_irq_mask(struct pcf50633 *pcf, int irq)
+{
+ dev_dbg(pcf->dev, "Masking IRQ %d\n", irq);
+
+ return __pcf50633_irq_mask_set(pcf, irq, 1);
+}
+EXPORT_SYMBOL_GPL(pcf50633_irq_mask);
+
+int pcf50633_irq_unmask(struct pcf50633 *pcf, int irq)
+{
+ dev_dbg(pcf->dev, "Unmasking IRQ %d\n", irq);
+
+ return __pcf50633_irq_mask_set(pcf, irq, 0);
+}
+EXPORT_SYMBOL_GPL(pcf50633_irq_unmask);
+
+int pcf50633_irq_mask_get(struct pcf50633 *pcf, int irq)
+{
+ u8 reg, bits;
+
+ reg = irq >> 3;
+ bits = 1 << (irq & 0x07);
+
+ return pcf->mask_regs[reg] & bits;
+}
+EXPORT_SYMBOL_GPL(pcf50633_irq_mask_get);
+
+static void pcf50633_irq_call_handler(struct pcf50633 *pcf, int irq)
+{
+ if (pcf->irq_handler[irq].handler)
+ pcf->irq_handler[irq].handler(irq, pcf->irq_handler[irq].data);
+}
+
+/* Maximum amount of time ONKEY is held before emergency action is taken */
+#define PCF50633_ONKEY1S_TIMEOUT 8
+
+static irqreturn_t pcf50633_irq(int irq, void *data)
+{
+ struct pcf50633 *pcf = data;
+ int ret, i, j;
+ u8 pcf_int[5], chgstat;
+
+ /* Read the 5 INT regs in one transaction */
+ ret = pcf50633_read_block(pcf, PCF50633_REG_INT1,
+ ARRAY_SIZE(pcf_int), pcf_int);
+ if (ret != ARRAY_SIZE(pcf_int)) {
+ dev_err(pcf->dev, "Error reading INT registers\n");
+
+ /*
+ * If this doesn't ACK the interrupt to the chip, we'll be
+ * called once again as we're level triggered.
+ */
+ goto out;
+ }
+
+ /* defeat 8s death from lowsys on A5 */
+ pcf50633_reg_write(pcf, PCF50633_REG_OOCSHDWN, 0x04);
+
+ /* We immediately read the usb and adapter status. We thus make sure
+ * only of USBINS/USBREM IRQ handlers are called */
+ if (pcf_int[0] & (PCF50633_INT1_USBINS | PCF50633_INT1_USBREM)) {
+ chgstat = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2);
+ if (chgstat & (0x3 << 4))
+ pcf_int[0] &= ~PCF50633_INT1_USBREM;
+ else
+ pcf_int[0] &= ~PCF50633_INT1_USBINS;
+ }
+
+ /* Make sure only one of ADPINS or ADPREM is set */
+ if (pcf_int[0] & (PCF50633_INT1_ADPINS | PCF50633_INT1_ADPREM)) {
+ chgstat = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2);
+ if (chgstat & (0x3 << 4))
+ pcf_int[0] &= ~PCF50633_INT1_ADPREM;
+ else
+ pcf_int[0] &= ~PCF50633_INT1_ADPINS;
+ }
+
+ dev_dbg(pcf->dev, "INT1=0x%02x INT2=0x%02x INT3=0x%02x "
+ "INT4=0x%02x INT5=0x%02x\n", pcf_int[0],
+ pcf_int[1], pcf_int[2], pcf_int[3], pcf_int[4]);
+
+ /* Some revisions of the chip don't have a 8s standby mode on
+ * ONKEY1S press. We try to manually do it in such cases. */
+ if ((pcf_int[0] & PCF50633_INT1_SECOND) && pcf->onkey1s_held) {
+ dev_info(pcf->dev, "ONKEY1S held for %d secs\n",
+ pcf->onkey1s_held);
+ if (pcf->onkey1s_held++ == PCF50633_ONKEY1S_TIMEOUT)
+ if (pcf->pdata->force_shutdown)
+ pcf->pdata->force_shutdown(pcf);
+ }
+
+ if (pcf_int[2] & PCF50633_INT3_ONKEY1S) {
+ dev_info(pcf->dev, "ONKEY1S held\n");
+ pcf->onkey1s_held = 1 ;
+
+ /* Unmask IRQ_SECOND */
+ pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT1M,
+ PCF50633_INT1_SECOND);
+
+ /* Unmask IRQ_ONKEYR */
+ pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT2M,
+ PCF50633_INT2_ONKEYR);
+ }
+
+ if ((pcf_int[1] & PCF50633_INT2_ONKEYR) && pcf->onkey1s_held) {
+ pcf->onkey1s_held = 0;
+
+ /* Mask SECOND and ONKEYR interrupts */
+ if (pcf->mask_regs[0] & PCF50633_INT1_SECOND)
+ pcf50633_reg_set_bit_mask(pcf,
+ PCF50633_REG_INT1M,
+ PCF50633_INT1_SECOND,
+ PCF50633_INT1_SECOND);
+
+ if (pcf->mask_regs[1] & PCF50633_INT2_ONKEYR)
+ pcf50633_reg_set_bit_mask(pcf,
+ PCF50633_REG_INT2M,
+ PCF50633_INT2_ONKEYR,
+ PCF50633_INT2_ONKEYR);
+ }
+
+ /* Have we just resumed ? */
+ if (pcf->is_suspended) {
+ pcf->is_suspended = 0;
+
+ /* Set the resume reason filtering out non resumers */
+ for (i = 0; i < ARRAY_SIZE(pcf_int); i++)
+ pcf->resume_reason[i] = pcf_int[i] &
+ pcf->pdata->resumers[i];
+
+ /* Make sure we don't pass on any ONKEY events to
+ * userspace now */
+ pcf_int[1] &= ~(PCF50633_INT2_ONKEYR | PCF50633_INT2_ONKEYF);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(pcf_int); i++) {
+ /* Unset masked interrupts */
+ pcf_int[i] &= ~pcf->mask_regs[i];
+
+ for (j = 0; j < 8 ; j++)
+ if (pcf_int[i] & (1 << j))
+ pcf50633_irq_call_handler(pcf, (i * 8) + j);
+ }
+
+out:
+ return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_PM
+
+int pcf50633_irq_suspend(struct pcf50633 *pcf)
+{
+ int ret;
+ int i;
+ u8 res[5];
+
+
+ /* Make sure our interrupt handlers are not called
+ * henceforth */
+ disable_irq(pcf->irq);
+
+ /* Save the masks */
+ ret = pcf50633_read_block(pcf, PCF50633_REG_INT1M,
+ ARRAY_SIZE(pcf->suspend_irq_masks),
+ pcf->suspend_irq_masks);
+ if (ret < 0) {
+ dev_err(pcf->dev, "error saving irq masks\n");
+ goto out;
+ }
+
+ /* Write wakeup irq masks */
+ for (i = 0; i < ARRAY_SIZE(res); i++)
+ res[i] = ~pcf->pdata->resumers[i];
+
+ ret = pcf50633_write_block(pcf, PCF50633_REG_INT1M,
+ ARRAY_SIZE(res), &res[0]);
+ if (ret < 0) {
+ dev_err(pcf->dev, "error writing wakeup irq masks\n");
+ goto out;
+ }
+
+ pcf->is_suspended = 1;
+
+out:
+ return ret;
+}
+
+int pcf50633_irq_resume(struct pcf50633 *pcf)
+{
+ int ret;
+
+ /* Write the saved mask registers */
+ ret = pcf50633_write_block(pcf, PCF50633_REG_INT1M,
+ ARRAY_SIZE(pcf->suspend_irq_masks),
+ pcf->suspend_irq_masks);
+ if (ret < 0)
+ dev_err(pcf->dev, "Error restoring saved suspend masks\n");
+
+ enable_irq(pcf->irq);
+
+ return ret;
+}
+
+#endif
+
+int pcf50633_irq_init(struct pcf50633 *pcf, int irq)
+{
+ int ret;
+
+ pcf->irq = irq;
+
+ /* Enable all interrupts except RTC SECOND */
+ pcf->mask_regs[0] = 0x80;
+ pcf50633_reg_write(pcf, PCF50633_REG_INT1M, pcf->mask_regs[0]);
+ pcf50633_reg_write(pcf, PCF50633_REG_INT2M, 0x00);
+ pcf50633_reg_write(pcf, PCF50633_REG_INT3M, 0x00);
+ pcf50633_reg_write(pcf, PCF50633_REG_INT4M, 0x00);
+ pcf50633_reg_write(pcf, PCF50633_REG_INT5M, 0x00);
+
+ ret = request_threaded_irq(irq, NULL, pcf50633_irq,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ "pcf50633", pcf);
+
+ if (ret) {
+ dev_err(pcf->dev, "Failed to request IRQ %d\n", ret);
+ }
+
+ if (enable_irq_wake(irq) < 0)
+ dev_err(pcf->dev, "IRQ %u cannot be enabled as wake-up source"
+ "in this hardware revision", irq);
+
+ return ret;
+}
+
+void pcf50633_irq_free(struct pcf50633 *pcf)
+{
+ free_irq(pcf->irq, pcf);
+}
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index fa6e9c7fe51..ec4ac0934d2 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -816,7 +816,7 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
nmtd->mtd.owner = THIS_MODULE;
nmtd->set = set;
- if (hardware_ecc) {
+ if (!(info->platform && info->platform->software_ecc) && hardware_ecc) {
chip->ecc.calculate = s3c2410_nand_calculate_ecc;
chip->ecc.correct = s3c2410_nand_correct_data;
chip->ecc.mode = NAND_ECC_HW;
diff --git a/drivers/serial/samsung.c b/drivers/serial/samsung.c
index a9d6c5626a0..f7b80ae91d5 100644
--- a/drivers/serial/samsung.c
+++ b/drivers/serial/samsung.c
@@ -1263,6 +1263,13 @@ module_exit(s3c24xx_serial_modexit);
#ifdef CONFIG_SERIAL_SAMSUNG_CONSOLE
static struct uart_port *cons_uart;
+static int cons_silenced;
+
+void s3c24xx_serial_console_set_silence(int silenced)
+{
+ cons_silenced = silenced;
+}
+EXPORT_SYMBOL(s3c24xx_serial_console_set_silence);
static int
s3c24xx_serial_console_txrdy(struct uart_port *port, unsigned int ufcon)
@@ -1287,9 +1294,21 @@ static void
s3c24xx_serial_console_putchar(struct uart_port *port, int ch)
{
unsigned int ufcon = rd_regl(cons_uart, S3C2410_UFCON);
+ unsigned int umcon = rd_regl(cons_uart, S3C2410_UMCON);
+
+ if (cons_silenced)
+ return;
+
+ /* If auto HW flow control enabled, temporarily turn it off */
+ if (umcon & S3C2410_UMCOM_AFC)
+ wr_regl(port, S3C2410_UMCON, (umcon & !S3C2410_UMCOM_AFC));
+
while (!s3c24xx_serial_console_txrdy(port, ufcon))
barrier();
wr_regb(cons_uart, S3C2410_UTXH, ch);
+
+ if (umcon & S3C2410_UMCOM_AFC)
+ wr_regl(port, S3C2410_UMCON, umcon);
}
static void
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index d5f4c1d45c9..e6b76d812c3 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -842,6 +842,7 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep)
u32 ep_csr1;
u32 idx;
+handle_ep_again:
if (likely (!list_empty(&ep->queue)))
req = list_entry(ep->queue.next,
struct s3c2410_request, queue);
@@ -881,6 +882,8 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep)
if ((ep_csr1 & S3C2410_UDC_OCSR1_PKTRDY) && req) {
s3c2410_udc_read_fifo(ep,req);
+ if (s3c2410_udc_fifo_count_out())
+ goto handle_ep_again;
}
}
}
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index c025c84601b..fe463c3d1a4 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -107,6 +107,20 @@ config LCD_HP700
If you have an HP Jornada 700 series handheld (710/720/728)
say Y to enable LCD control driver.
+config LCD_JBT6K74
+ tristate "TPO JBT6K74-AS TFT display ASIC control interface"
+ depends on SPI_MASTER && SYSFS && LCD_CLASS_DEVICE
+ help
+ SPI driver for the control interface of TFT panels containing
+ the TPO JBT6K74-AS controller ASIC, such as the TPO TD028TTEC1
+ TFT diplay module used in the Openmoko Freerunner GSM phone.
+
+ The control interface is required for display operation, as it
+ controls power management, display timing and gamma calibration.
+
+ This driver can also be build as a module, if so it will be called
+ jbt6k74.
+
#
# Backlight
#
@@ -282,3 +296,9 @@ config BACKLIGHT_88PM860X
help
Say Y to enable the backlight driver for Marvell 88PM8606.
+config BACKLIGHT_PCF50633
+ tristate "Backlight driver for NXP PCF50633 MFD"
+ depends on BACKLIGHT_CLASS_DEVICE && MFD_PCF50633
+ help
+ If you have a backlight driven by a NXP PCF50633 MFD, say Y here to
+ enable its driver.
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index 09d1f14d625..c9c049e9aeb 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_LCD_PLATFORM) += platform_lcd.o
obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o
obj-$(CONFIG_LCD_TDO24M) += tdo24m.o
obj-$(CONFIG_LCD_TOSA) += tosa_lcd.o
+obj-$(CONFIG_LCD_JBT6K74) += jbt6k74.o
obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o
obj-$(CONFIG_BACKLIGHT_ATMEL_PWM) += atmel-pwm-bl.o
@@ -31,4 +32,5 @@ obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
obj-$(CONFIG_BACKLIGHT_ADX) += adx_bl.o
obj-$(CONFIG_BACKLIGHT_ADP5520) += adp5520_bl.o
obj-$(CONFIG_BACKLIGHT_88PM860X) += 88pm860x_bl.o
+obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o
diff --git a/drivers/video/backlight/jbt6k74.c b/drivers/video/backlight/jbt6k74.c
new file mode 100644
index 00000000000..8450904d585
--- /dev/null
+++ b/drivers/video/backlight/jbt6k74.c
@@ -0,0 +1,896 @@
+/* Linux kernel driver for the tpo JBT6K74-AS LCM ASIC
+ *
+ * Copyright (C) 2006-2007 by Openmoko, Inc.
+ * Author: Harald Welte <laforge@openmoko.org>,
+ * Stefan Schmidt <stefan@openmoko.org>
+ * Copyright (C) 2008 by Harald Welte <laforge@openmoko.org>
+ * Copyright (C) 2009 by Lars-Peter Clausen <lars@metafoo.de>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/workqueue.h>
+#include <linux/jbt6k74.h>
+#include <linux/fb.h>
+#include <linux/lcd.h>
+#include <linux/time.h>
+#include <linux/regulator/consumer.h>
+#include <linux/gpio.h>
+
+enum jbt_register {
+ JBT_REG_SLEEP_IN = 0x10,
+ JBT_REG_SLEEP_OUT = 0x11,
+
+ JBT_REG_DISPLAY_OFF = 0x28,
+ JBT_REG_DISPLAY_ON = 0x29,
+
+ JBT_REG_RGB_FORMAT = 0x3a,
+ JBT_REG_QUAD_RATE = 0x3b,
+
+ JBT_REG_POWER_ON_OFF = 0xb0,
+ JBT_REG_BOOSTER_OP = 0xb1,
+ JBT_REG_BOOSTER_MODE = 0xb2,
+ JBT_REG_BOOSTER_FREQ = 0xb3,
+ JBT_REG_OPAMP_SYSCLK = 0xb4,
+ JBT_REG_VSC_VOLTAGE = 0xb5,
+ JBT_REG_VCOM_VOLTAGE = 0xb6,
+ JBT_REG_EXT_DISPL = 0xb7,
+ JBT_REG_OUTPUT_CONTROL = 0xb8,
+ JBT_REG_DCCLK_DCEV = 0xb9,
+ JBT_REG_DISPLAY_MODE1 = 0xba,
+ JBT_REG_DISPLAY_MODE2 = 0xbb,
+ JBT_REG_DISPLAY_MODE = 0xbc,
+ JBT_REG_ASW_SLEW = 0xbd,
+ JBT_REG_DUMMY_DISPLAY = 0xbe,
+ JBT_REG_DRIVE_SYSTEM = 0xbf,
+
+ JBT_REG_SLEEP_OUT_FR_A = 0xc0,
+ JBT_REG_SLEEP_OUT_FR_B = 0xc1,
+ JBT_REG_SLEEP_OUT_FR_C = 0xc2,
+ JBT_REG_SLEEP_IN_LCCNT_D = 0xc3,
+ JBT_REG_SLEEP_IN_LCCNT_E = 0xc4,
+ JBT_REG_SLEEP_IN_LCCNT_F = 0xc5,
+ JBT_REG_SLEEP_IN_LCCNT_G = 0xc6,
+
+ JBT_REG_GAMMA1_FINE_1 = 0xc7,
+ JBT_REG_GAMMA1_FINE_2 = 0xc8,
+ JBT_REG_GAMMA1_INCLINATION = 0xc9,
+ JBT_REG_GAMMA1_BLUE_OFFSET = 0xca,
+
+ /* VGA */
+ JBT_REG_BLANK_CONTROL = 0xcf,
+ JBT_REG_BLANK_TH_TV = 0xd0,
+ JBT_REG_CKV_ON_OFF = 0xd1,
+ JBT_REG_CKV_1_2 = 0xd2,
+ JBT_REG_OEV_TIMING = 0xd3,
+ JBT_REG_ASW_TIMING_1 = 0xd4,
+ JBT_REG_ASW_TIMING_2 = 0xd5,
+
+ /* QVGA */
+ JBT_REG_BLANK_CONTROL_QVGA = 0xd6,
+ JBT_REG_BLANK_TH_TV_QVGA = 0xd7,
+ JBT_REG_CKV_ON_OFF_QVGA = 0xd8,
+ JBT_REG_CKV_1_2_QVGA = 0xd9,
+ JBT_REG_OEV_TIMING_QVGA = 0xde,
+ JBT_REG_ASW_TIMING_1_QVGA = 0xdf,
+ JBT_REG_ASW_TIMING_2_QVGA = 0xe0,
+
+
+ JBT_REG_HCLOCK_VGA = 0xec,
+ JBT_REG_HCLOCK_QVGA = 0xed,
+};
+
+enum jbt_resolution {
+ JBT_RESOLUTION_VGA,
+ JBT_RESOLUTION_QVGA,
+};
+
+enum jbt_power_mode {
+ JBT_POWER_MODE_DEEP_STANDBY,
+ JBT_POWER_MODE_SLEEP,
+ JBT_POWER_MODE_NORMAL,
+};
+
+static const char *jbt_power_mode_names[] = {
+ [JBT_POWER_MODE_DEEP_STANDBY] = "deep-standby",
+ [JBT_POWER_MODE_SLEEP] = "sleep",
+ [JBT_POWER_MODE_NORMAL] = "normal",
+};
+
+static const char *jbt_resolution_names[] = {
+ [JBT_RESOLUTION_VGA] = "vga",
+ [JBT_RESOLUTION_QVGA] = "qvga",
+};
+
+struct jbt_info {
+ struct mutex lock; /* protects this structure */
+ enum jbt_resolution resolution;
+ enum jbt_power_mode power_mode;
+ enum jbt_power_mode suspend_mode;
+ int suspended;
+
+ struct spi_device *spi;
+ struct lcd_device *lcd_dev;
+
+ unsigned long next_sleep;
+ struct delayed_work blank_work;
+ int blank_mode;
+ struct regulator_bulk_data supplies[2];
+ uint16_t tx_buf[3];
+ uint16_t reg_cache[0xEE];
+};
+
+#define JBT_COMMAND 0x000
+#define JBT_DATA 0x100
+
+static int jbt_reg_write_nodata(struct jbt_info *jbt, uint8_t reg)
+{
+ int ret;
+
+ jbt->tx_buf[0] = JBT_COMMAND | reg;
+ ret = spi_write(jbt->spi, (uint8_t *)jbt->tx_buf,
+ sizeof(uint16_t));
+ if (ret == 0)
+ jbt->reg_cache[reg] = 0;
+ else
+ dev_err(&jbt->spi->dev, "Write failed: %d\n", ret);
+
+ return ret;
+}
+
+
+static int jbt_reg_write(struct jbt_info *jbt, uint8_t reg, uint8_t data)
+{
+ int ret;
+
+ jbt->tx_buf[0] = JBT_COMMAND | reg;
+ jbt->tx_buf[1] = JBT_DATA | data;
+ ret = spi_write(jbt->spi, (uint8_t *)jbt->tx_buf,
+ 2*sizeof(uint16_t));
+ if (ret == 0)
+ jbt->reg_cache[reg] = data;
+ else
+ dev_err(&jbt->spi->dev, "Write failed: %d\n", ret);
+
+ return ret;
+}
+
+static int jbt_reg_write16(struct jbt_info *jbt, uint8_t reg, uint16_t data)
+{
+ int ret;
+
+ jbt->tx_buf[0] = JBT_COMMAND | reg;
+ jbt->tx_buf[1] = JBT_DATA | (data >> 8);
+ jbt->tx_buf[2] = JBT_DATA | (data & 0xff);
+
+ ret = spi_write(jbt->spi, (uint8_t *)jbt->tx_buf,
+ 3*sizeof(uint16_t));
+ if (ret == 0)
+ jbt->reg_cache[reg] = data;
+ else
+ dev_err(&jbt->spi->dev, "Write failed: %d\n", ret);
+
+ return ret;
+}
+
+static int jbt_init_regs(struct jbt_info *jbt)
+{
+ int ret;
+
+ dev_dbg(&jbt->spi->dev, "entering %cVGA mode\n",
+ jbt->resolution == JBT_RESOLUTION_QVGA ? 'Q' : ' ');
+
+ ret = jbt_reg_write(jbt, JBT_REG_DISPLAY_MODE1, 0x01);
+ ret |= jbt_reg_write(jbt, JBT_REG_DISPLAY_MODE2, 0x00);
+ ret |= jbt_reg_write(jbt, JBT_REG_RGB_FORMAT, 0x60);
+ ret |= jbt_reg_write(jbt, JBT_REG_DRIVE_SYSTEM, 0x10);
+ ret |= jbt_reg_write(jbt, JBT_REG_BOOSTER_OP, 0x56);
+ ret |= jbt_reg_write(jbt, JBT_REG_BOOSTER_MODE, 0x33);
+ ret |= jbt_reg_write(jbt, JBT_REG_BOOSTER_FREQ, 0x11);
+ ret |= jbt_reg_write(jbt, JBT_REG_OPAMP_SYSCLK, 0x02);
+ ret |= jbt_reg_write(jbt, JBT_REG_VSC_VOLTAGE, 0x2b);
+ ret |= jbt_reg_write(jbt, JBT_REG_VCOM_VOLTAGE, 0x40);
+ ret |= jbt_reg_write(jbt, JBT_REG_EXT_DISPL, 0x03);
+ ret |= jbt_reg_write(jbt, JBT_REG_DCCLK_DCEV, 0x04);
+ /*
+ * default of 0x02 in JBT_REG_ASW_SLEW responsible for 72Hz requirement
+ * to avoid red / blue flicker
+ */
+ ret |= jbt_reg_write(jbt, JBT_REG_ASW_SLEW, 0x00 | (1 << 5));
+ ret |= jbt_reg_write(jbt, JBT_REG_DUMMY_DISPLAY, 0x00);
+
+ ret |= jbt_reg_write(jbt, JBT_REG_SLEEP_OUT_FR_A, 0x11);
+ ret |= jbt_reg_write(jbt, JBT_REG_SLEEP_OUT_FR_B, 0x11);
+ ret |= jbt_reg_write(jbt, JBT_REG_SLEEP_OUT_FR_C, 0x11);
+ ret |= jbt_reg_write16(jbt, JBT_REG_SLEEP_IN_LCCNT_D, 0x2040);
+ ret |= jbt_reg_write16(jbt, JBT_REG_SLEEP_IN_LCCNT_E, 0x60c0);
+ ret |= jbt_reg_write16(jbt, JBT_REG_SLEEP_IN_LCCNT_F, 0x1020);
+ ret |= jbt_reg_write16(jbt, JBT_REG_SLEEP_IN_LCCNT_G, 0x60c0);
+
+ ret |= jbt_reg_write16(jbt, JBT_REG_GAMMA1_FINE_1, 0x5533);
+ ret |= jbt_reg_write(jbt, JBT_REG_GAMMA1_FINE_2, 0x00);
+ ret |= jbt_reg_write(jbt, JBT_REG_GAMMA1_INCLINATION, 0x00);
+ ret |= jbt_reg_write(jbt, JBT_REG_GAMMA1_BLUE_OFFSET, 0x00);
+
+ if (jbt->resolution != JBT_RESOLUTION_QVGA) {
+ ret |= jbt_reg_write16(jbt, JBT_REG_HCLOCK_VGA, 0x1f0);
+ ret |= jbt_reg_write(jbt, JBT_REG_BLANK_CONTROL, 0x02);
+ ret |= jbt_reg_write16(jbt, JBT_REG_BLANK_TH_TV, 0x0804);
+
+ ret |= jbt_reg_write(jbt, JBT_REG_CKV_ON_OFF, 0x01);
+ ret |= jbt_reg_write16(jbt, JBT_REG_CKV_1_2, 0x0000);
+
+ ret |= jbt_reg_write16(jbt, JBT_REG_OEV_TIMING, 0x0d0e);
+ ret |= jbt_reg_write16(jbt, JBT_REG_ASW_TIMING_1, 0x11a4);
+ ret |= jbt_reg_write(jbt, JBT_REG_ASW_TIMING_2, 0x0e);
+ } else {
+ ret |= jbt_reg_write16(jbt, JBT_REG_HCLOCK_QVGA, 0x00ff);
+ ret |= jbt_reg_write(jbt, JBT_REG_BLANK_CONTROL_QVGA, 0x02);
+ ret |= jbt_reg_write16(jbt, JBT_REG_BLANK_TH_TV_QVGA, 0x0804);
+
+ ret |= jbt_reg_write(jbt, JBT_REG_CKV_ON_OFF_QVGA, 0x01);
+ ret |= jbt_reg_write16(jbt, JBT_REG_CKV_1_2_QVGA, 0x0008);
+
+ ret |= jbt_reg_write16(jbt, JBT_REG_OEV_TIMING_QVGA, 0x050a);
+ ret |= jbt_reg_write16(jbt, JBT_REG_ASW_TIMING_1_QVGA, 0x0a19);
+ ret |= jbt_reg_write(jbt, JBT_REG_ASW_TIMING_2_QVGA, 0x0a);
+ }
+
+ return ret ? -EIO : 0;
+}
+
+static int jbt_standby_to_sleep(struct jbt_info *jbt)
+{
+ int ret;
+ struct jbt6k74_platform_data *pdata = jbt->spi->dev.platform_data;
+
+ gpio_set_value_cansleep(pdata->gpio_reset, 1);
+ ret = regulator_bulk_enable(ARRAY_SIZE(jbt->supplies), jbt->supplies);
+
+ /* three times command zero */
+ ret |= jbt_reg_write_nodata(jbt, 0x00);
+ mdelay(1);
+ ret |= jbt_reg_write_nodata(jbt, 0x00);
+ mdelay(1);
+ ret |= jbt_reg_write_nodata(jbt, 0x00);
+ mdelay(1);
+
+ /* deep standby out */
+ ret |= jbt_reg_write(jbt, JBT_REG_POWER_ON_OFF, 0x11);
+ mdelay(1);
+ ret = jbt_reg_write(jbt, JBT_REG_DISPLAY_MODE, 0x28);
+
+ /* (re)initialize register set */
+ ret |= jbt_init_regs(jbt);
+
+ return ret ? -EIO : 0;
+}
+
+static int jbt_sleep_to_normal(struct jbt_info *jbt)
+{
+ int ret;
+
+ /* Make sure we are 120 ms after SLEEP_OUT */
+ if (time_before(jiffies, jbt->next_sleep))
+ mdelay(jiffies_to_msecs(jbt->next_sleep - jiffies));
+
+ if (jbt->resolution == JBT_RESOLUTION_VGA) {
+ /* RGB I/F on, RAM wirte off, QVGA through, SIGCON enable */
+ ret = jbt_reg_write(jbt, JBT_REG_DISPLAY_MODE, 0x80);
+
+ /* Quad mode off */
+ ret |= jbt_reg_write(jbt, JBT_REG_QUAD_RATE, 0x00);
+ } else {
+ /* RGB I/F on, RAM wirte off, QVGA through, SIGCON enable */
+ ret = jbt_reg_write(jbt, JBT_REG_DISPLAY_MODE, 0x81);
+
+ /* Quad mode on */
+ ret |= jbt_reg_write(jbt, JBT_REG_QUAD_RATE, 0x22);
+ }
+
+ /* AVDD on, XVDD on */
+ ret |= jbt_reg_write(jbt, JBT_REG_POWER_ON_OFF, 0x16);
+
+ /* Output control */
+ ret |= jbt_reg_write16(jbt, JBT_REG_OUTPUT_CONTROL, 0xdff9);
+
+ /* Turn on display */
+ ret |= jbt_reg_write_nodata(jbt, JBT_REG_DISPLAY_ON);
+
+ /* Sleep mode off */
+ ret |= jbt_reg_write_nodata(jbt, JBT_REG_SLEEP_OUT);
+ jbt->next_sleep = jiffies + msecs_to_jiffies(120);
+
+ /* Allow the booster and display controller to restart stably */
+ mdelay(5);
+
+ return ret ? -EIO : 0;
+}
+
+static int jbt_normal_to_sleep(struct jbt_info *jbt)
+{
+ int ret;
+
+ /* Make sure we are 120 ms after SLEEP_OUT */
+ while (time_before(jiffies, jbt->next_sleep))
+ cpu_relax();
+
+ ret = jbt_reg_write_nodata(jbt, JBT_REG_DISPLAY_OFF);
+ ret |= jbt_reg_write16(jbt, JBT_REG_OUTPUT_CONTROL, 0x8000 | 1 << 3);
+ ret |= jbt_reg_write_nodata(jbt, JBT_REG_SLEEP_IN);
+ jbt->next_sleep = jiffies + msecs_to_jiffies(120);
+
+ /* Allow the internal circuits to stop automatically */
+ mdelay(5);
+
+ return ret ? -EIO : 0;
+}
+
+static int jbt_sleep_to_standby(struct jbt_info *jbt)
+{
+ int ret;
+ struct jbt6k74_platform_data *pdata = jbt->spi->dev.platform_data;
+
+ ret = jbt_reg_write(jbt, JBT_REG_POWER_ON_OFF, 0x00);
+
+ if (!ret)
+ ret = regulator_bulk_disable(ARRAY_SIZE(jbt->supplies), jbt->supplies);
+
+ if (!ret)
+ gpio_set_value_cansleep(pdata->gpio_reset, 0);
+
+ return ret;
+}
+
+static int jbt6k74_enter_power_mode(struct jbt_info *jbt,
+ enum jbt_power_mode new_mode)
+{
+ struct jbt6k74_platform_data *pdata = jbt->spi->dev.platform_data;
+ int ret = -EINVAL;
+
+ dev_dbg(&jbt->spi->dev, "entering (old_state=%s, new_state=%s)\n",
+ jbt_power_mode_names[jbt->power_mode],
+ jbt_power_mode_names[new_mode]);
+
+ mutex_lock(&jbt->lock);
+
+ if (jbt->suspended) {
+ switch (new_mode) {
+ case JBT_POWER_MODE_DEEP_STANDBY:
+ case JBT_POWER_MODE_SLEEP:
+ case JBT_POWER_MODE_NORMAL:
+ ret = 0;
+ jbt->suspend_mode = new_mode;
+ break;
+ default:
+ break;
+ }
+ } else if (new_mode == JBT_POWER_MODE_NORMAL &&
+ pdata->enable_pixel_clock) {
+ pdata->enable_pixel_clock(&jbt->spi->dev, 1);
+ }
+
+ switch (jbt->power_mode) {
+ case JBT_POWER_MODE_DEEP_STANDBY:
+ switch (new_mode) {
+ case JBT_POWER_MODE_DEEP_STANDBY:
+ ret = 0;
+ break;
+ case JBT_POWER_MODE_SLEEP:
+ ret = jbt_standby_to_sleep(jbt);
+ break;
+ case JBT_POWER_MODE_NORMAL:
+ /* first transition into sleep */
+ ret = jbt_standby_to_sleep(jbt);
+ /* then transition into normal */
+ ret |= jbt_sleep_to_normal(jbt);
+ break;
+ }
+ break;
+ case JBT_POWER_MODE_SLEEP:
+ switch (new_mode) {
+ case JBT_POWER_MODE_SLEEP:
+ ret = 0;
+ break;
+ case JBT_POWER_MODE_DEEP_STANDBY:
+ ret = jbt_sleep_to_standby(jbt);
+ break;
+ case JBT_POWER_MODE_NORMAL:
+ ret = jbt_sleep_to_normal(jbt);
+ break;
+ }
+ break;
+ case JBT_POWER_MODE_NORMAL:
+ switch (new_mode) {
+ case JBT_POWER_MODE_NORMAL:
+ ret = 0;
+ break;
+ case JBT_POWER_MODE_DEEP_STANDBY:
+ /* first transition into sleep */
+ ret = jbt_normal_to_sleep(jbt);
+ /* then transition into deep standby */
+ ret |= jbt_sleep_to_standby(jbt);
+ break;
+ case JBT_POWER_MODE_SLEEP:
+ ret = jbt_normal_to_sleep(jbt);
+ break;
+ }
+ }
+
+ if (ret == 0) {
+ jbt->power_mode = new_mode;
+ if (new_mode != JBT_POWER_MODE_NORMAL &&
+ pdata->enable_pixel_clock)
+ pdata->enable_pixel_clock(&jbt->spi->dev, 0);
+ } else {
+ dev_err(&jbt->spi->dev, "Failed enter state '%s': %d\n",
+ jbt_power_mode_names[new_mode], ret);
+ }
+
+ mutex_unlock(&jbt->lock);
+
+ return ret;
+}
+
+static int jbt6k74_set_resolution(struct jbt_info *jbt,
+ enum jbt_resolution new_resolution)
+{
+ int ret = 0;
+ enum jbt_resolution old_resolution;
+
+ mutex_lock(&jbt->lock);
+
+ if (jbt->resolution == new_resolution)
+ goto out_unlock;
+
+ old_resolution = jbt->resolution;
+ jbt->resolution = new_resolution;
+
+ if (jbt->power_mode == JBT_POWER_MODE_NORMAL) {
+
+ /* first transition into sleep */
+ ret = jbt_normal_to_sleep(jbt);
+ ret |= jbt_sleep_to_normal(jbt);
+
+ if (ret) {
+ jbt->resolution = old_resolution;
+ dev_err(&jbt->spi->dev, "Failed to set resolution '%s')\n",
+ jbt_resolution_names[new_resolution]);
+ }
+ }
+
+out_unlock:
+ mutex_unlock(&jbt->lock);
+
+ return ret;
+}
+
+static ssize_t resolution_read(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct jbt_info *jbt = dev_get_drvdata(dev);
+
+ if (jbt->resolution >= ARRAY_SIZE(jbt_resolution_names))
+ return -EIO;
+
+ return sprintf(buf, "%s\n", jbt_resolution_names[jbt->resolution]);
+}
+
+static ssize_t resolution_write(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct jbt_info *jbt = dev_get_drvdata(dev);
+ int i, ret;
+
+ for (i = 0; i < ARRAY_SIZE(jbt_resolution_names); i++) {
+ if (!strncmp(buf, jbt_resolution_names[i],
+ strlen(jbt_resolution_names[i]))) {
+ ret = jbt6k74_set_resolution(jbt, i);
+ if (ret)
+ return ret;
+ return count;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static DEVICE_ATTR(resolution, 0644, resolution_read, resolution_write);
+
+static int reg_by_string(const char *name)
+{
+ if (!strcmp(name, "gamma_fine1"))
+ return JBT_REG_GAMMA1_FINE_1;
+ else if (!strcmp(name, "gamma_fine2"))
+ return JBT_REG_GAMMA1_FINE_2;
+ else if (!strcmp(name, "gamma_inclination"))
+ return JBT_REG_GAMMA1_INCLINATION;
+ else
+ return JBT_REG_GAMMA1_BLUE_OFFSET;
+}
+
+static ssize_t gamma_read(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct jbt_info *jbt = dev_get_drvdata(dev);
+ int reg = reg_by_string(attr->attr.name);
+ uint16_t val;
+
+ mutex_lock(&jbt->lock);
+ val = jbt->reg_cache[reg];
+ mutex_unlock(&jbt->lock);
+
+ return sprintf(buf, "0x%04x\n", val);
+}
+
+static ssize_t gamma_write(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int ret;
+ struct jbt_info *jbt = dev_get_drvdata(dev);
+ int reg = reg_by_string(attr->attr.name);
+ unsigned long val;
+
+ ret = strict_strtoul(buf, 10, &val);
+ if (ret)
+ return ret;
+
+ mutex_lock(&jbt->lock);
+ jbt_reg_write(jbt, reg, val & 0xff);
+ mutex_unlock(&jbt->lock);
+
+ return count;
+}
+
+static ssize_t reset_write(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int ret;
+ struct jbt_info *jbt = dev_get_drvdata(dev);
+ struct jbt6k74_platform_data *pdata = jbt->spi->dev.platform_data;
+ enum jbt_power_mode old_power_mode = jbt->power_mode;
+
+ mutex_lock(&jbt->lock);
+
+ if (gpio_is_valid(pdata->gpio_reset)) {
+ /* hard reset the jbt6k74 */
+ gpio_set_value_cansleep(pdata->gpio_reset, 0);
+ mdelay(120);
+ gpio_set_value_cansleep(pdata->gpio_reset, 1);
+ mdelay(120);
+ }
+
+ ret = jbt_reg_write_nodata(jbt, 0x01);
+ if (ret < 0)
+ dev_err(&jbt->spi->dev, "cannot soft reset\n");
+ mdelay(120);
+
+ mutex_unlock(&jbt->lock);
+
+ jbt->power_mode = JBT_POWER_MODE_DEEP_STANDBY;
+ jbt6k74_enter_power_mode(jbt, old_power_mode);
+
+ return count;
+}
+
+static DEVICE_ATTR(gamma_fine1, 0644, gamma_read, gamma_write);
+static DEVICE_ATTR(gamma_fine2, 0644, gamma_read, gamma_write);
+static DEVICE_ATTR(gamma_inclination, 0644, gamma_read, gamma_write);
+static DEVICE_ATTR(gamma_blue_offset, 0644, gamma_read, gamma_write);
+static DEVICE_ATTR(reset, 0600, NULL, reset_write);
+
+static struct attribute *jbt_sysfs_entries[] = {
+ &dev_attr_resolution.attr,
+ &dev_attr_gamma_fine1.attr,
+ &dev_attr_gamma_fine2.attr,
+ &dev_attr_gamma_inclination.attr,
+ &dev_attr_gamma_blue_offset.attr,
+ &dev_attr_reset.attr,
+ NULL,
+};
+
+static struct attribute_group jbt_attr_group = {
+ .name = NULL,
+ .attrs = jbt_sysfs_entries,
+};
+
+/* FIXME: This in an ugly hack to delay display blanking.
+ When the jbt is in sleep mode it displays an all white screen and thus one
+ will a see a short flash.
+ By delaying the blanking we will give the backlight a chance to turn off and
+ thus avoid getting the flash */
+static void jbt_blank_worker(struct work_struct *work)
+{
+ struct jbt_info *jbt = container_of(work, struct jbt_info,
+ blank_work.work);
+
+ switch (jbt->blank_mode) {
+ case FB_BLANK_NORMAL:
+ jbt6k74_enter_power_mode(jbt, JBT_POWER_MODE_SLEEP);
+ break;
+ case FB_BLANK_POWERDOWN:
+ jbt6k74_enter_power_mode(jbt, JBT_POWER_MODE_DEEP_STANDBY);
+ break;
+ default:
+ break;
+ }
+}
+
+static int jbt6k74_set_mode(struct lcd_device *ld, struct fb_videomode *m)
+{
+ int ret = -EINVAL;
+ struct jbt_info *jbt = dev_get_drvdata(&ld->dev);
+
+ if (m->xres == 240 && m->yres == 320) {
+ ret = jbt6k74_set_resolution(jbt, JBT_RESOLUTION_QVGA);
+ } else if (m->xres == 480 && m->yres == 640) {
+ ret = jbt6k74_set_resolution(jbt, JBT_RESOLUTION_VGA);
+ } else {
+ dev_err(&jbt->spi->dev, "Unknown resolution.\n");
+ jbt6k74_enter_power_mode(jbt, JBT_POWER_MODE_SLEEP);
+ }
+
+ return ret;
+}
+
+static int jbt6k74_set_power(struct lcd_device *ld, int power)
+{
+ int ret = -EINVAL;
+ struct jbt_info *jbt = dev_get_drvdata(&ld->dev);
+
+ jbt->blank_mode = power;
+ cancel_rearming_delayed_work(&jbt->blank_work);
+
+ switch (power) {
+ case FB_BLANK_UNBLANK:
+ dev_dbg(&jbt->spi->dev, "unblank\n");
+ mdelay(20);
+ ret = jbt6k74_enter_power_mode(jbt, JBT_POWER_MODE_NORMAL);
+ break;
+ case FB_BLANK_NORMAL:
+ dev_dbg(&jbt->spi->dev, "blank\n");
+ ret = schedule_delayed_work(&jbt->blank_work, HZ);
+ break;
+ case FB_BLANK_POWERDOWN:
+ dev_dbg(&jbt->spi->dev, "powerdown\n");
+ ret = schedule_delayed_work(&jbt->blank_work, HZ);
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+static int jbt6k74_get_power(struct lcd_device *ld)
+{
+ struct jbt_info *jbt = dev_get_drvdata(&ld->dev);
+
+ switch (jbt->power_mode) {
+ case JBT_POWER_MODE_NORMAL:
+ return FB_BLANK_UNBLANK;
+ case JBT_POWER_MODE_SLEEP:
+ return FB_BLANK_NORMAL;
+ default:
+ return JBT_POWER_MODE_DEEP_STANDBY;
+ }
+}
+
+struct lcd_ops jbt6k74_lcd_ops = {
+ .set_power = jbt6k74_set_power,
+ .get_power = jbt6k74_get_power,
+ .set_mode = jbt6k74_set_mode,
+};
+
+/* linux device model infrastructure */
+
+static int __devinit jbt_probe(struct spi_device *spi)
+{
+ int ret;
+ struct jbt_info *jbt;
+ struct jbt6k74_platform_data *pdata = spi->dev.platform_data;
+
+ /* the controller doesn't have a MISO pin; we can't do detection */
+
+ spi->mode = SPI_CPOL | SPI_CPHA;
+ spi->bits_per_word = 9;
+
+ ret = spi_setup(spi);
+ if (ret < 0) {
+ dev_err(&spi->dev,
+ "Failed to setup spi\n");
+ return ret;
+ }
+
+ jbt = kzalloc(sizeof(*jbt), GFP_KERNEL);
+ if (!jbt)
+ return -ENOMEM;
+
+ jbt->spi = spi;
+
+ jbt->lcd_dev = lcd_device_register("jbt6k74-lcd", &spi->dev, jbt,
+ &jbt6k74_lcd_ops);
+
+ if (IS_ERR(jbt->lcd_dev)) {
+ ret = PTR_ERR(jbt->lcd_dev);
+ goto err_free_drvdata;
+ }
+
+ INIT_DELAYED_WORK(&jbt->blank_work, jbt_blank_worker);
+
+ jbt->resolution = JBT_RESOLUTION_VGA;
+ jbt->power_mode = JBT_POWER_MODE_DEEP_STANDBY;
+ jbt->next_sleep = jiffies + msecs_to_jiffies(120);
+ mutex_init(&jbt->lock);
+
+ dev_set_drvdata(&spi->dev, jbt);
+
+ jbt->supplies[0].supply = "VDC";
+ jbt->supplies[1].supply = "VDDIO";
+
+ ret = regulator_bulk_get(&spi->dev, ARRAY_SIZE(jbt->supplies),
+ jbt->supplies);
+ if (ret) {
+ dev_err(&spi->dev, "Failed to power get supplies: %d\n", ret);
+ goto err_unregister_lcd;
+ }
+
+ if (gpio_is_valid(pdata->gpio_reset)) {
+ ret = gpio_request(pdata->gpio_reset, "jbt6k74 reset");
+ if (ret) {
+ dev_err(&spi->dev, "Failed to request reset gpio: %d\n",
+ ret);
+ goto err_free_supplies;
+ }
+
+ ret = gpio_direction_output(pdata->gpio_reset, 1);
+ if (ret) {
+ dev_err(&spi->dev, "Failed to set reset gpio direction: %d\n",
+ ret);
+ goto err_gpio_free;
+ }
+ }
+
+ ret = sysfs_create_group(&spi->dev.kobj, &jbt_attr_group);
+ if (ret < 0) {
+ dev_err(&spi->dev, "cannot create sysfs group\n");
+ goto err_gpio_free;
+ }
+
+ mdelay(50);
+ ret = jbt6k74_enter_power_mode(jbt, JBT_POWER_MODE_NORMAL);
+ if (ret < 0) {
+ dev_err(&spi->dev, "cannot enter NORMAL state\n");
+ goto err_sysfs_remove;
+ }
+
+
+ if (pdata->probe_completed)
+ (pdata->probe_completed)(&spi->dev);
+
+ return 0;
+
+err_sysfs_remove:
+ sysfs_remove_group(&spi->dev.kobj, &jbt_attr_group);
+err_gpio_free:
+ gpio_free(pdata->gpio_reset);
+err_free_supplies:
+ regulator_bulk_free(ARRAY_SIZE(jbt->supplies), jbt->supplies);
+err_unregister_lcd:
+ lcd_device_unregister(jbt->lcd_dev);
+err_free_drvdata:
+ dev_set_drvdata(&spi->dev, NULL);
+ kfree(jbt);
+
+ return ret;
+}
+
+static int __devexit jbt_remove(struct spi_device *spi)
+{
+ struct jbt_info *jbt = dev_get_drvdata(&spi->dev);
+ struct jbt6k74_platform_data *pdata = jbt->spi->dev.platform_data;
+
+ /* We don't want to switch off the display in case the user
+ * accidentially unloads the module (whose use count normally is 0) */
+ jbt6k74_enter_power_mode(jbt, JBT_POWER_MODE_NORMAL);
+
+ sysfs_remove_group(&spi->dev.kobj, &jbt_attr_group);
+
+ if (gpio_is_valid(pdata->gpio_reset))
+ gpio_free(pdata->gpio_reset);
+
+ lcd_device_unregister(jbt->lcd_dev);
+
+ dev_set_drvdata(&spi->dev, NULL);
+
+ regulator_bulk_free(ARRAY_SIZE(jbt->supplies), jbt->supplies);
+ kfree(jbt);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int jbt_suspend(struct spi_device *spi, pm_message_t state)
+{
+ struct jbt_info *jbt = dev_get_drvdata(&spi->dev);
+
+ jbt->suspend_mode = jbt->power_mode;
+
+ jbt6k74_enter_power_mode(jbt, JBT_POWER_MODE_DEEP_STANDBY);
+ jbt->suspended = 1;
+
+ dev_info(&spi->dev, "suspended\n");
+
+ return 0;
+}
+
+int jbt6k74_resume(struct spi_device *spi)
+{
+ struct jbt_info *jbt = dev_get_drvdata(&spi->dev);
+ dev_info(&spi->dev, "starting resume: %d\n", jbt->suspend_mode);
+
+ mdelay(20);
+
+ jbt->suspended = 0;
+ jbt6k74_enter_power_mode(jbt, jbt->suspend_mode);
+
+ dev_info(&spi->dev, "resumed: %d\n", jbt->suspend_mode);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(jbt6k74_resume);
+
+#else
+#define jbt_suspend NULL
+#define jbt6k74_resume NULL
+#endif
+
+static struct spi_driver jbt6k74_driver = {
+ .driver = {
+ .name = "jbt6k74",
+ .owner = THIS_MODULE,
+ },
+
+ .probe = jbt_probe,
+ .remove = __devexit_p(jbt_remove),
+ .suspend = jbt_suspend,
+ .resume = jbt6k74_resume,
+};
+
+static int __init jbt_init(void)
+{
+ return spi_register_driver(&jbt6k74_driver);
+}
+module_init(jbt_init);
+
+static void __exit jbt_exit(void)
+{
+ spi_unregister_driver(&jbt6k74_driver);
+}
+module_exit(jbt_exit);
+
+MODULE_DESCRIPTION("SPI driver for tpo JBT6K74-AS LCM control interface");
+MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/backlight/pcf50633-backlight.c b/drivers/video/backlight/pcf50633-backlight.c
new file mode 100644
index 00000000000..5b72089c9c3
--- /dev/null
+++ b/drivers/video/backlight/pcf50633-backlight.c
@@ -0,0 +1,189 @@
+/*
+ * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
+ * PCF50633 backlight device driver
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+
+#include <linux/backlight.h>
+#include <linux/fb.h>
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/mfd/pcf50633/backlight.h>
+
+struct pcf50633_bl {
+ struct pcf50633 *pcf;
+ struct backlight_device *bl;
+
+ unsigned int brightness;
+ unsigned int brightness_limit;
+};
+
+/*
+ * pcf50633_bl_set_brightness_limit
+ *
+ * Update the brightness limit for the pc50633 backlight. The actuall brightness
+ * will not go above the limit. This is useful to limit power drain for example
+ * on low battery.
+ *
+ * @dev: Pointer to a pcf50633 device
+ * @limit: The brightness limit. Valid values are 0-63
+ */
+int pcf50633_bl_set_brightness_limit(struct pcf50633 *pcf, unsigned int limit)
+{
+ struct pcf50633_bl *pcf_bl = platform_get_drvdata(pcf->bl_pdev);
+
+ if (!pcf_bl)
+ return -ENODEV;
+
+ pcf_bl->brightness_limit = limit & 0x3f;
+ backlight_update_status(pcf_bl->bl);
+
+ return 0;
+}
+
+static int pcf50633_bl_update_status(struct backlight_device *bl)
+{
+ struct pcf50633_bl *pcf_bl = bl_get_data(bl);
+ unsigned int new_brightness;
+
+
+ if (bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK) ||
+ bl->props.power != FB_BLANK_UNBLANK)
+ new_brightness = 0;
+ else if (bl->props.brightness < pcf_bl->brightness_limit)
+ new_brightness = bl->props.brightness;
+ else
+ new_brightness = pcf_bl->brightness_limit;
+
+
+ if (pcf_bl->brightness == new_brightness)
+ return 0;
+
+ if (new_brightness) {
+ pcf50633_reg_write(pcf_bl->pcf, PCF50633_REG_LEDOUT,
+ new_brightness);
+ if (!pcf_bl->brightness)
+ pcf50633_reg_write(pcf_bl->pcf, PCF50633_REG_LEDENA, 1);
+ } else {
+ pcf50633_reg_write(pcf_bl->pcf, PCF50633_REG_LEDENA, 0);
+ }
+
+ pcf_bl->brightness = new_brightness;
+
+ return 0;
+}
+
+static int pcf50633_bl_get_brightness(struct backlight_device *bl)
+{
+ struct pcf50633_bl *pcf_bl = bl_get_data(bl);
+ return pcf_bl->brightness;
+}
+
+static struct backlight_ops pcf50633_bl_ops = {
+ .get_brightness = pcf50633_bl_get_brightness,
+ .update_status = pcf50633_bl_update_status,
+ .options = BL_CORE_SUSPENDRESUME,
+};
+
+static int __devinit pcf50633_bl_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct pcf50633_bl *pcf_bl;
+ struct pcf50633_platform_data *pcf50633_data = pdev->dev.parent->platform_data;
+ struct pcf50633_bl_platform_data *pdata = pcf50633_data->backlight_data;
+ struct backlight_properties bl_props;
+
+ pcf_bl = kzalloc(sizeof(*pcf_bl), GFP_KERNEL);
+ if (!pcf_bl)
+ return -ENOMEM;
+
+ bl_props.max_brightness = 0x3f;
+ bl_props.power = FB_BLANK_UNBLANK;
+
+ if (pdata) {
+ bl_props.brightness = pdata->default_brightness;
+ pcf_bl->brightness_limit = pdata->default_brightness_limit;
+ } else {
+ bl_props.brightness = 0x3f;
+ pcf_bl->brightness_limit = 0x3f;
+ }
+
+ pcf_bl->pcf = dev_to_pcf50633(pdev->dev.parent);
+
+ pcf_bl->bl = backlight_device_register(pdev->name, &pdev->dev, pcf_bl,
+ &pcf50633_bl_ops, &bl_props);
+
+ if (IS_ERR(pcf_bl->bl)) {
+ ret = PTR_ERR(pcf_bl->bl);
+ goto err_free;
+ }
+
+ platform_set_drvdata(pdev, pcf_bl);
+
+ pcf50633_reg_write(pcf_bl->pcf, PCF50633_REG_LEDDIM, pdata->ramp_time);
+
+ /* Should be different from bl_props.brightness, so we don't
+ * update_status early the first time it's called */
+ pcf_bl->brightness = pcf_bl->bl->props.brightness + 1;
+
+ backlight_update_status(pcf_bl->bl);
+
+ return 0;
+
+err_free:
+ kfree(pcf_bl);
+
+ return ret;
+}
+
+static int __devexit pcf50633_bl_remove(struct platform_device *pdev)
+{
+ struct pcf50633_bl *pcf_bl = platform_get_drvdata(pdev);
+
+ backlight_device_unregister(pcf_bl->bl);
+
+ platform_set_drvdata(pdev, NULL);
+
+ kfree(pcf_bl);
+
+ return 0;
+}
+
+static struct platform_driver pcf50633_bl_driver = {
+ .probe = pcf50633_bl_probe,
+ .remove = __devexit_p(pcf50633_bl_remove),
+ .driver = {
+ .name = "pcf50633-backlight",
+ },
+};
+
+static int __init pcf50633_bl_init(void)
+{
+ return platform_driver_register(&pcf50633_bl_driver);
+}
+module_init(pcf50633_bl_init);
+
+static void __exit pcf50633_bl_exit(void)
+{
+ platform_driver_unregister(&pcf50633_bl_driver);
+}
+module_exit(pcf50633_bl_exit);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("PCF50633 backlight driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcf50633-backlight");
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-18 02:21:38 +0000