From: Ben Dooks <ben-linux@fluff.org>
Date: Wed, 19 Nov 2008 15:41:34 +0000 (+0000)
Subject: [ARM] SMDK6410: Add LCD (LCD48WVGA) definitions
X-Git-Tag: firefly_0821_release~16459^2~9^2~8^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=438a5d42e052ec6126c5f1e24763b711210db33e;p=firefly-linux-kernel-4.4.55.git

[ARM] SMDK6410: Add LCD (LCD48WVGA) definitions

Add support for the LCD 48WVGA module attached to the
SMDK6410.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---

diff --git a/arch/arm/mach-s3c6410/Kconfig b/arch/arm/mach-s3c6410/Kconfig
index d00b5605100d..1d5010070027 100644
--- a/arch/arm/mach-s3c6410/Kconfig
+++ b/arch/arm/mach-s3c6410/Kconfig
@@ -25,8 +25,10 @@ config MACH_SMDK6410
 	select S3C_DEV_HSMMC
 	select S3C_DEV_HSMMC1
 	select S3C_DEV_I2C1
+	select S3C_DEV_FB
 	select S3C6410_SETUP_SDHCI
 	select S3C64XX_SETUP_I2C1
+	select S3C64XX_SETUP_FB_24BPP
 	help
 	  Machine support for the Samsung SMDK6410
 
diff --git a/arch/arm/mach-s3c6410/mach-smdk6410.c b/arch/arm/mach-s3c6410/mach-smdk6410.c
index b900244a91d3..ae3bd5c2b8c6 100644
--- a/arch/arm/mach-s3c6410/mach-smdk6410.c
+++ b/arch/arm/mach-s3c6410/mach-smdk6410.c
@@ -21,12 +21,18 @@
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/i2c.h>
+#include <linux/fb.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+
+#include <video/platform_lcd.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
 #include <mach/hardware.h>
+#include <mach/regs-fb.h>
 #include <mach/map.h>
 
 #include <asm/irq.h>
@@ -34,6 +40,7 @@
 
 #include <plat/regs-serial.h>
 #include <plat/iic.h>
+#include <plat/fb.h>
 
 #include <plat/s3c6410.h>
 #include <plat/clock.h>
@@ -61,6 +68,67 @@ static struct s3c2410_uartcfg smdk6410_uartcfgs[] __initdata = {
 	},
 };
 
+/* framebuffer and LCD setup. */
+
+/* GPF15 = LCD backlight control
+ * GPF13 => Panel power
+ * GPN5 = LCD nRESET signal
+ * PWM_TOUT1 => backlight brightness
+ */
+
+static void smdk6410_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 smdk6410_lcd_power_data = {
+	.set_power	= smdk6410_lcd_power_set,
+};
+
+static struct platform_device smdk6410_lcd_powerdev = {
+	.name			= "platform-lcd",
+	.dev.parent		= &s3c_device_fb.dev,
+	.dev.platform_data	= &smdk6410_lcd_power_data,
+};
+
+static struct s3c_fb_pd_win smdk6410_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 smdk6410_lcd_pdata __initdata = {
+	.setup_gpio	= s3c64xx_fb_gpio_setup_24bpp,
+	.win[0]		= &smdk6410_fb_win0,
+	.vidcon0	= VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
+	.vidcon1	= VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
+};
+
 struct map_desc smdk6410_iodesc[] = {};
 
 static struct platform_device *smdk6410_devices[] __initdata = {
@@ -72,6 +140,8 @@ static struct platform_device *smdk6410_devices[] __initdata = {
 #endif
 	&s3c_device_i2c0,
 	&s3c_device_i2c1,
+	&s3c_device_fb,
+	&smdk6410_lcd_powerdev,
 };
 
 static struct i2c_board_info i2c_devs0[] __initdata = {
@@ -96,6 +166,7 @@ static void __init smdk6410_machine_init(void)
 {
 	s3c_i2c0_set_platdata(NULL);
 	s3c_i2c1_set_platdata(NULL);
+	s3c_fb_set_platdata(&smdk6410_lcd_pdata);
 
 	i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
 	i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));