[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 d00b560..1d50100 100644 (file)
--- 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 b900244..ae3bd5c 100644 (file)
--- 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));