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Diffstat (limited to 'arch/arm/mach-s5p64x0/mach-smdk6450.c')
-rw-r--r--arch/arm/mach-s5p64x0/mach-smdk6450.c47
1 files changed, 46 insertions, 1 deletions
diff --git a/arch/arm/mach-s5p64x0/mach-smdk6450.c b/arch/arm/mach-s5p64x0/mach-smdk6450.c
index 3a20de0a9264..d19c4690ee97 100644
--- a/arch/arm/mach-s5p64x0/mach-smdk6450.c
+++ b/arch/arm/mach-s5p64x0/mach-smdk6450.c
@@ -22,6 +22,7 @@
#include <linux/module.h>
#include <linux/clk.h>
#include <linux/gpio.h>
+#include <linux/pwm_backlight.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@@ -32,6 +33,7 @@
#include <mach/map.h>
#include <mach/regs-clock.h>
#include <mach/i2c.h>
+#include <mach/regs-gpio.h>
#include <plat/regs-serial.h>
#include <plat/gpio-cfg.h>
@@ -43,6 +45,7 @@
#include <plat/pll.h>
#include <plat/adc.h>
#include <plat/ts.h>
+#include <plat/s5p-time.h>
#define SMDK6450_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \
S3C2410_UCON_RXILEVEL | \
@@ -106,6 +109,45 @@ static struct s3c2410_uartcfg smdk6450_uartcfgs[] __initdata = {
#endif
};
+static int smdk6450_backlight_init(struct device *dev)
+{
+ int ret;
+
+ ret = gpio_request(S5P6450_GPF(15), "Backlight");
+ if (ret) {
+ printk(KERN_ERR "failed to request GPF for PWM-OUT1\n");
+ return ret;
+ }
+
+ /* Configure GPIO pin with S5P6450_GPF15_PWM_TOUT1 */
+ s3c_gpio_cfgpin(S5P6450_GPF(15), S3C_GPIO_SFN(2));
+
+ return 0;
+}
+
+static void smdk6450_backlight_exit(struct device *dev)
+{
+ s3c_gpio_cfgpin(S5P6450_GPF(15), S3C_GPIO_OUTPUT);
+ gpio_free(S5P6450_GPF(15));
+}
+
+static struct platform_pwm_backlight_data smdk6450_backlight_data = {
+ .pwm_id = 1,
+ .max_brightness = 255,
+ .dft_brightness = 255,
+ .pwm_period_ns = 78770,
+ .init = smdk6450_backlight_init,
+ .exit = smdk6450_backlight_exit,
+};
+
+static struct platform_device smdk6450_backlight_device = {
+ .name = "pwm-backlight",
+ .dev = {
+ .parent = &s3c_device_timer[1].dev,
+ .platform_data = &smdk6450_backlight_data,
+ },
+};
+
static struct platform_device *smdk6450_devices[] __initdata = {
&s3c_device_adc,
&s3c_device_rtc,
@@ -115,6 +157,8 @@ static struct platform_device *smdk6450_devices[] __initdata = {
&s3c_device_wdt,
&samsung_asoc_dma,
&s5p6450_device_iis0,
+ &s3c_device_timer[1],
+ &smdk6450_backlight_device,
/* s5p6450_device_spi0 will be added */
};
@@ -155,6 +199,7 @@ static void __init smdk6450_map_io(void)
s5p_init_io(NULL, 0, S5P64X0_SYS_ID);
s3c24xx_init_clocks(19200000);
s3c24xx_init_uarts(smdk6450_uartcfgs, ARRAY_SIZE(smdk6450_uartcfgs));
+ s5p_set_timer_source(S5P_PWM3, S5P_PWM4);
}
static void __init smdk6450_machine_init(void)
@@ -178,5 +223,5 @@ MACHINE_START(SMDK6450, "SMDK6450")
.init_irq = s5p6450_init_irq,
.map_io = smdk6450_map_io,
.init_machine = smdk6450_machine_init,
- .timer = &s3c24xx_timer,
+ .timer = &s5p_timer,
MACHINE_END