ARM: S3C64XX: Add PWM backlight support on SMDK6410
This patch adds support for LCD backlight using PWM timer for
Samsung SMDK6410 board.
Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index e4177e2..fdc89fc 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -142,6 +142,7 @@
select S3C_DEV_USB_HOST
select S3C_DEV_USB_HSOTG
select S3C_DEV_WDT
+ select SAMSUNG_DEV_BACKLIGHT
select SAMSUNG_DEV_KEYPAD
select SAMSUNG_DEV_PWM
select HAVE_S3C2410_WATCHDOG if WATCHDOG
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
index e0521e0..2aa28a2 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -71,6 +71,7 @@
#include <plat/adc.h>
#include <plat/ts.h>
#include <plat/keypad.h>
+#include <plat/backlight.h>
#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
@@ -329,8 +330,6 @@
&s3c_device_rtc,
&s3c_device_ts,
&s3c_device_wdt,
- &s3c_device_timer[1],
- &smdk6410_backlight_device,
};
#ifdef CONFIG_REGULATOR
@@ -665,6 +664,16 @@
.oversampling_shift = 2,
};
+/* LCD Backlight data */
+static struct samsung_bl_gpio_info smdk6410_bl_gpio_info = {
+ .no = S3C64XX_GPF(15),
+ .func = S3C_GPIO_SFN(2),
+};
+
+static struct platform_pwm_backlight_data smdk6410_bl_data = {
+ .pwm_id = 1,
+};
+
static void __init smdk6410_map_io(void)
{
u32 tmp;
@@ -726,6 +735,8 @@
s3c_ide_set_platdata(&smdk6410_ide_pdata);
+ samsung_bl_set(&smdk6410_bl_gpio_info, &smdk6410_bl_data);
+
platform_add_devices(smdk6410_devices, ARRAY_SIZE(smdk6410_devices));
}