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ARM: S3C64XX: Add PWM backlight support on SMDK6410

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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>
This commit is contained in:
Banajit Goswami 2011-07-20 23:45:22 +09:00 committed by Kukjin Kim
parent 543601f526
commit 96d78686d4
2 changed files with 14 additions and 2 deletions
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1
arch/arm/mach-s3c64xx/Kconfig
View file

@ -142,6 +142,7 @@ config MACH_SMDK6410
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

15
arch/arm/mach-s3c64xx/mach-smdk6410.c
View file

@ -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 @@ static struct platform_device *smdk6410_devices[] __initdata = {
&s3c_device_rtc,
&s3c_device_ts,
&s3c_device_wdt,
&s3c_device_timer[1],
&smdk6410_backlight_device,
};
#ifdef CONFIG_REGULATOR
@ -665,6 +664,16 @@ static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
.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 @@ static void __init smdk6410_machine_init(void)
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));
}