ARM: SMDK2416: Add support for framebuffer device and ensure correct …

…setup Add support for the LCD display on the SMDJK2416, and correctly name the framebuffer device. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
git-mirror · May 18, 2010 · f64bea4 · f64bea4
1 parent f077f3f
commit f64bea4
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Showing 3 changed files with 62 additions and 3 deletions.
diff --git a/arch/arm/mach-s3c2416/Kconfig b/arch/arm/mach-s3c2416/Kconfig
@@ -30,6 +30,7 @@ menu "S3C2416 Machines"
 config MACH_SMDK2416
 	bool "SMDK2416"
 	select CPU_S3C2416
+	select S3C_DEV_FB
 	select S3C_DEV_HSMMC
 	select S3C_DEV_HSMMC1
 	help

diff --git a/arch/arm/mach-s3c2416/mach-smdk2416.c b/arch/arm/mach-s3c2416/mach-smdk2416.c
@@ -22,6 +22,7 @@
 #include <linux/io.h>
 #include <linux/mtd/partitions.h>
 #include <linux/gpio.h>
+#include <linux/fb.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -36,16 +37,19 @@
 #include <mach/regs-lcd.h>
 
 #include <mach/idle.h>
-#include <mach/fb.h>
 #include <mach/leds-gpio.h>
 #include <plat/iic.h>
 
 #include <plat/s3c2416.h>
+#include <plat/gpio-cfg.h>
 #include <plat/clock.h>
 #include <plat/devs.h>
 #include <plat/cpu.h>
 #include <plat/nand.h>
 
+#include <plat/regs-fb-v4.h>
+#include <plat/fb.h>
+
 #include <plat/common-smdk.h>
 
 static struct map_desc smdk2416_iodesc[] __initdata = {
@@ -109,7 +113,54 @@ static struct s3c2410_uartcfg smdk2416_uartcfgs[] __initdata = {
 	}
 };
 
+struct s3c_fb_pd_win smdk2416_fb_win[] = {
+	[0] = {
+		/* think this is the same as the smdk6410 */
+		.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,
+		},
+		.default_bpp	= 16,
+		.max_bpp	= 32,
+	},
+};
+
+static void s3c2416_fb_gpio_setup_24bpp(void)
+{
+	unsigned int gpio;
+
+	for (gpio = S3C2410_GPC(1); gpio <= S3C2410_GPC(4); gpio++) {
+		s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+		s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+	}
+
+	for (gpio = S3C2410_GPC(8); gpio <= S3C2410_GPC(15); gpio++) {
+		s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+		s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+	}
+
+	for (gpio = S3C2410_GPD(0); gpio <= S3C2410_GPD(15); gpio++) {
+		s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+		s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+	}
+}
+
+static struct s3c_fb_platdata smdk2416_fb_platdata = {
+	.win[0]		= &smdk2416_fb_win[0],
+	.setup_gpio	= s3c2416_fb_gpio_setup_24bpp,
+	.vidcon0	= VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
+	.vidcon1	= VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
+};
+
 static struct platform_device *smdk2416_devices[] __initdata = {
+	&s3c_device_fb,
 	&s3c_device_wdt,
 	&s3c_device_ohci,
 	&s3c_device_i2c0,
@@ -119,20 +170,25 @@ static struct platform_device *smdk2416_devices[] __initdata = {
 
 static void __init smdk2416_map_io(void)
 {
-
 	s3c24xx_init_io(smdk2416_iodesc, ARRAY_SIZE(smdk2416_iodesc));
 	s3c24xx_init_clocks(12000000);
 	s3c24xx_init_uarts(smdk2416_uartcfgs, ARRAY_SIZE(smdk2416_uartcfgs));
-
 }
 
 static void __init smdk2416_machine_init(void)
 {
 	s3c_i2c0_set_platdata(NULL);
+	s3c_fb_set_platdata(&smdk2416_fb_platdata);
 
 	gpio_request(S3C2410_GPB(4), "USBHost Power");
 	gpio_direction_output(S3C2410_GPB(4), 1);
 
+	gpio_request(S3C2410_GPB(3), "Display Power");
+	gpio_direction_output(S3C2410_GPB(3), 1);
+
+	gpio_request(S3C2410_GPB(1), "Display Reset");
+	gpio_direction_output(S3C2410_GPB(1), 1);
+
 	platform_add_devices(smdk2416_devices, ARRAY_SIZE(smdk2416_devices));
 	smdk_machine_init();
 }

diff --git a/arch/arm/mach-s3c2416/s3c2416.c b/arch/arm/mach-s3c2416/s3c2416.c
@@ -90,6 +90,8 @@ int __init s3c2416_init(void)
 	s3c_i2c0_setname("s3c2440-i2c");
 	s3c_i2c1_setname("s3c2440-i2c");
 
+	s3c_device_fb.name = "s3c2443-fb";
+
 	return sysdev_register(&s3c2416_sysdev);
 }