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authorBen Dooks <ben-linux@fluff.org>2008-11-19 15:41:34 +0000
committerBen Dooks <ben-linux@fluff.org>2008-12-15 23:57:26 +0000
commit438a5d42e052ec6126c5f1e24763b711210db33e (patch)
treeafdaa666836d6d7f020b05325eb93935672065a0 /arch/arm/mach-s3c6410
parentc7a0401e61447ebc2b7a8923c78875a2c300e548 (diff)
[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>
Diffstat (limited to 'arch/arm/mach-s3c6410')
-rw-r--r--arch/arm/mach-s3c6410/Kconfig2
-rw-r--r--arch/arm/mach-s3c6410/mach-smdk6410.c71
2 files changed, 73 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c6410/Kconfig b/arch/arm/mach-s3c6410/Kconfig
index d00b5605100..1d501007002 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 b900244a91d..ae3bd5c2b8c 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));