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authorPhilipp Zabel <philipp.zabel@gmail.com>2008-04-12 13:25:41 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-04-19 11:29:08 +0100
commit5dc3339aa5ba29593ea57814049ddca8c12831c8 (patch)
tree0481d4344d0cf4052effce8605706414ce63ce8a /include/linux/mfd
parent481ea5a16aaabe2570d56b5a4d29fa80adc8008b (diff)
[ARM] 4964/1: htc-pasic3: MFD driver for PASIC3 LED control + DS1WM chip
This driver will provide registers, clocks and GPIOs of the HTC PASIC3 (AIC3) and PASIC2 (AIC2) chips to the ds1wm and leds-pasic3 drivers. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/linux/mfd')
-rw-r--r--include/linux/mfd/htc-pasic3.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/include/linux/mfd/htc-pasic3.h b/include/linux/mfd/htc-pasic3.h
new file mode 100644
index 00000000000..b4294f12c4f
--- /dev/null
+++ b/include/linux/mfd/htc-pasic3.h
@@ -0,0 +1,55 @@
+/*
+ * HTC PASIC3 driver - LEDs and DS1WM
+ *
+ * Copyright (c) 2007 Philipp Zabel <philipp.zabel@gmail.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ *
+ */
+
+#ifndef __PASIC3_H
+#define __PASIC3_H
+
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+
+extern void pasic3_write_register(struct device *dev, u32 reg, u8 val);
+extern u8 pasic3_read_register(struct device *dev, u32 reg);
+
+/*
+ * mask for registers 0x20,0x21,0x22
+ */
+#define PASIC3_MASK_LED0 0x04
+#define PASIC3_MASK_LED1 0x08
+#define PASIC3_MASK_LED2 0x40
+
+/*
+ * bits in register 0x06
+ */
+#define PASIC3_BIT2_LED0 0x08
+#define PASIC3_BIT2_LED1 0x10
+#define PASIC3_BIT2_LED2 0x20
+
+struct pasic3_led {
+ struct led_classdev led;
+ unsigned int hw_num;
+ unsigned int bit2;
+ unsigned int mask;
+ struct pasic3_leds_machinfo *pdata;
+};
+
+struct pasic3_leds_machinfo {
+ unsigned int num_leds;
+ unsigned int power_gpio;
+ struct pasic3_led *leds;
+};
+
+struct pasic3_platform_data {
+ struct pasic3_leds_machinfo *led_pdata;
+ unsigned int bus_shift;
+ unsigned int clock_rate;
+};
+
+#endif