add-gta03-framebuffer-init.patch

Signed-off-by: Andy Green <andy@openmoko.com>

1 files changed, 76 insertions, 2 deletions

diff --git a/arch/arm/mach-s3c6410/mach-om-gta03.c b/arch/arm/mach-s3c6410/mach-om-gta03.c
index 79f72635c08..a9aca2aab2a 100644
--- a/arch/arm/mach-s3c6410/mach-om-gta03.c
+++ b/arch/arm/mach-s3c6410/mach-om-gta03.c
@@ -1,9 +1,9 @@
-/* linux/arch/arm/mach-s3c6410/mach-smdk6410.c
+/* linux/arch/arm/mach-s3c6410/mach-om_gta03.c
  *
  * Copyright 2008 Openmoko, Inc.
  * Andy Green <andy@openmoko.org>
  *
- * based on mach_smdk6410.c which is
+ * based on mach_om_gta03.c which is
  *
  * Copyright 2008 Openmoko, Inc.
  * Copyright 2008 Simtec Electronics
@@ -25,6 +25,11 @@
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+#include <linux/i2c.h>
+#include <linux/fb.h>
+#include <linux/delay.h>
+
+#include <video/platform_lcd.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -32,12 +37,15 @@
 
 #include <mach/hardware.h>
 #include <mach/map.h>
+#include <mach/regs-fb.h>
 
 #include <asm/irq.h>
 #include <asm/mach-types.h>
 
 #include <plat/regs-serial.h>
 #include <plat/iic.h>
+#include <plat/fb.h>
+
 
 #include <plat/s3c6410.h>
 #include <plat/clock.h>
@@ -88,6 +96,68 @@ static struct s3c2410_uartcfg om_gta03_uartcfgs[] __initdata = {
 	},
 };
 
+/* framebuffer and LCD setup. */
+
+/* GPF15 = LCD backlight control
+ * GPF13 => Panel power
+ * GPN5 = LCD nRESET signal
+ * PWM_TOUT1 => backlight brightness
+ */
+
+static void om_gta03_lcd_power_set(struct plat_lcd_data *pd,
+				   unsigned int power)
+{
+	if (power) {
+		gpio_direction_output(S3C64XX_GPF(13), 1);
+		gpio_direction_output(S3C64XX_GPF(15), 1);
+
+		/* fire nRESET on power up */
+		gpio_direction_output(S3C64XX_GPN(5), 0);
+		msleep(10);
+		gpio_direction_output(S3C64XX_GPN(5), 1);
+		msleep(1);
+	} else {
+		gpio_direction_output(S3C64XX_GPF(15), 0);
+		gpio_direction_output(S3C64XX_GPF(13), 0);
+	}
+}
+
+static struct plat_lcd_data om_gta03_lcd_power_data = {
+	.set_power	= om_gta03_lcd_power_set,
+};
+
+static struct platform_device om_gta03_lcd_powerdev = {
+	.name			= "platform-lcd",
+	.dev.parent		= &s3c_device_fb.dev,
+	.dev.platform_data	= &om_gta03_lcd_power_data,
+};
+
+static struct s3c_fb_pd_win om_gta03_fb_win0 = {
+	/* this is to ensure we use win0 */
+	.win_mode	= {
+		.pixclock	= 41094,
+		.left_margin	= 8,
+		.right_margin	= 13,
+		.upper_margin	= 7,
+		.lower_margin	= 5,
+		.hsync_len	= 3,
+		.vsync_len	= 1,
+		.xres		= 800,
+		.yres		= 480,
+	},
+	.max_bpp	= 32,
+	.default_bpp	= 16,
+};
+
+/* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
+static struct s3c_fb_platdata om_gta03_lcd_pdata __initdata = {
+	.setup_gpio	= s3c64xx_fb_gpio_setup_24bpp,
+	.win[0]		= &om_gta03_fb_win0,
+	.vidcon0	= VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
+	.vidcon1	= VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
+};
+
+
 struct map_desc om_gta03_6410_iodesc[] = {};
 
 static struct resource om_gta03_button_resources[] = {
@@ -381,6 +451,8 @@ static struct platform_device *om_gta03_devices[] __initdata = {
 	&s3c_device_hsmmc0,
 	&s3c_device_hsmmc1,
 	&s3c_device_i2c0,
+	&s3c_device_fb,
+	&om_gta03_lcd_powerdev,
 	&om_gta03_button_dev,
 };
 
@@ -396,6 +468,8 @@ static void __init om_gta03_map_io(void)
 static void __init om_gta03_machine_init(void)
 {
 	s3c_i2c0_set_platdata(NULL);
+	s3c_fb_set_platdata(&om_gta03_lcd_pdata);
+
 
 	i2c_register_board_info(0, om_gta03_i2c_devs,
 						 ARRAY_SIZE(om_gta03_i2c_devs));