ARM: SMDK2416: Add support for framebuffer device and ensure correct setup
Ben Dooks [Mon, 3 May 2010 06:29:44 +0000 (15:29 +0900)]
Add support for the LCD display on the SMDJK2416, and correctly name the
framebuffer device.

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

arch/arm/mach-s3c2416/Kconfig
arch/arm/mach-s3c2416/mach-smdk2416.c
arch/arm/mach-s3c2416/s3c2416.c

index 29103a6..657e4fe 100644 (file)
@@ -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
index 99d24c4..5fc3f67 100644 (file)
@@ -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>
 #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();
 }
index 3bff057..35dabcc 100644 (file)
@@ -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);
 }