Merge branch 'dev/pwm-backlight' into for-next

Conflicts:
	arch/arm/mach-s3c64xx/mach-smdk6410.c

arch/arm/mach-s3c64xx/Kconfig

@@ -143,6 +143,7 @@ config MACH_SMDK6410
 	select S3C_DEV_USB_HSOTG
 	select S3C_DEV_WDT
 	select SAMSUNG_DEV_KEYPAD
+	select SAMSUNG_DEV_PWM
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
 	select S3C64XX_SETUP_SDHCI
 	select S3C64XX_SETUP_I2C1
@@ -231,7 +232,7 @@ config MACH_HMT
 	select S3C_DEV_NAND
 	select S3C_DEV_USB_HOST
 	select S3C64XX_SETUP_FB_24BPP
-	select HAVE_PWM
+	select SAMSUNG_DEV_PWM
 	help
 	  Machine support for the Airgoo HMT
 
@@ -249,8 +250,8 @@ config MACH_SMARTQ
 	select S3C64XX_SETUP_SDHCI
 	select S3C64XX_SETUP_FB_24BPP
 	select SAMSUNG_DEV_ADC
+	select SAMSUNG_DEV_PWM
 	select SAMSUNG_DEV_TS
-	select HAVE_PWM
 	help
 	    Shared machine support for SmartQ 5/7
 

arch/arm/mach-s3c64xx/mach-smdk6410.c

@@ -29,6 +29,7 @@
 #include <linux/smsc911x.h>
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
+#include <linux/pwm_backlight.h>
 
 #ifdef CONFIG_SMDK6410_WM1190_EV1
 #include <linux/mfd/wm8350/core.h>
@@ -49,6 +50,7 @@
 #include <mach/hardware.h>
 #include <mach/regs-fb.h>
 #include <mach/map.h>
+#include <mach/gpio-bank-f.h>
 
 #include <asm/irq.h>
 #include <asm/mach-types.h>
@@ -119,7 +121,6 @@ static void smdk6410_lcd_power_set(struct plat_lcd_data *pd,
 {
 	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);
@@ -127,7 +128,6 @@ static void smdk6410_lcd_power_set(struct plat_lcd_data *pd,
 		gpio_direction_output(S3C64XX_GPN(5), 1);
 		msleep(1);
 	} else {
-		gpio_direction_output(S3C64XX_GPF(15), 0);
 		gpio_direction_output(S3C64XX_GPF(13), 0);
 	}
 }
@@ -270,6 +270,45 @@ static struct samsung_keypad_platdata smdk6410_keypad_data __initdata = {
 	.cols		= 8,
 };
 
+static int smdk6410_backlight_init(struct device *dev)
+{
+	int ret;
+
+	ret = gpio_request(S3C64XX_GPF(15), "Backlight");
+	if (ret) {
+		printk(KERN_ERR "failed to request GPF for PWM-OUT1\n");
+		return ret;
+	}
+
+	/* Configure GPIO pin with S3C64XX_GPF15_PWM_TOUT1 */
+	s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_SFN(2));
+
+	return 0;
+}
+
+static void smdk6410_backlight_exit(struct device *dev)
+{
+	s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_OUTPUT);
+	gpio_free(S3C64XX_GPF(15));
+}
+
+static struct platform_pwm_backlight_data smdk6410_backlight_data = {
+	.pwm_id		= 1,
+	.max_brightness	= 255,
+	.dft_brightness	= 255,
+	.pwm_period_ns	= 78770,
+	.init		= smdk6410_backlight_init,
+	.exit		= smdk6410_backlight_exit,
+};
+
+static struct platform_device smdk6410_backlight_device = {
+	.name		= "pwm-backlight",
+	.dev		= {
+		.parent		= &s3c_device_timer[1].dev,
+		.platform_data	= &smdk6410_backlight_data,
+	},
+};
+
 static struct map_desc smdk6410_iodesc[] = {};
 
 static struct platform_device *smdk6410_devices[] __initdata = {
@@ -299,6 +338,8 @@ 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
@@ -694,7 +735,6 @@ static void __init smdk6410_machine_init(void)
 
 	gpio_request(S3C64XX_GPN(5), "LCD power");
 	gpio_request(S3C64XX_GPF(13), "LCD power");
-	gpio_request(S3C64XX_GPF(15), "LCD power");
 
 	i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
 	i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));

arch/arm/mach-s5p64x0/Kconfig

@@ -34,6 +34,7 @@ config MACH_SMDK6440
 	select S3C_DEV_WDT
 	select S3C64XX_DEV_SPI
 	select SAMSUNG_DEV_ADC
+	select SAMSUNG_DEV_PWM
 	select SAMSUNG_DEV_TS
 	select S5P64X0_SETUP_I2C1
 	help
@@ -47,6 +48,7 @@ config MACH_SMDK6450
 	select S3C_DEV_WDT
 	select S3C64XX_DEV_SPI
 	select SAMSUNG_DEV_ADC
+	select SAMSUNG_DEV_PWM
 	select SAMSUNG_DEV_TS
 	select S5P64X0_SETUP_I2C1
 	help

arch/arm/mach-s5p64x0/mach-smdk6440.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>
@@ -88,6 +90,45 @@ static struct s3c2410_uartcfg smdk6440_uartcfgs[] __initdata = {
 	},
 };
 
+static int smdk6440_backlight_init(struct device *dev)
+{
+	int ret;
+
+	ret = gpio_request(S5P6440_GPF(15), "Backlight");
+	if (ret) {
+		printk(KERN_ERR "failed to request GPF for PWM-OUT1\n");
+		return ret;
+	}
+
+	/* Configure GPIO pin with S5P6440_GPF15_PWM_TOUT1 */
+	s3c_gpio_cfgpin(S5P6440_GPF(15), S3C_GPIO_SFN(2));
+
+	return 0;
+}
+
+static void smdk6440_backlight_exit(struct device *dev)
+{
+	s3c_gpio_cfgpin(S5P6440_GPF(15), S3C_GPIO_OUTPUT);
+	gpio_free(S5P6440_GPF(15));
+}
+
+static struct platform_pwm_backlight_data smdk6440_backlight_data = {
+	.pwm_id		= 1,
+	.max_brightness	= 255,
+	.dft_brightness	= 255,
+	.pwm_period_ns	= 78770,
+	.init		= smdk6440_backlight_init,
+	.exit		= smdk6440_backlight_exit,
+};
+
+static struct platform_device smdk6440_backlight_device = {
+	.name		= "pwm-backlight",
+	.dev		= {
+		.parent		= &s3c_device_timer[1].dev,
+		.platform_data	= &smdk6440_backlight_data,
+	},
+};
+
 static struct platform_device *smdk6440_devices[] __initdata = {
 	&s3c_device_adc,
 	&s3c_device_rtc,
@@ -97,6 +138,8 @@ static struct platform_device *smdk6440_devices[] __initdata = {
 	&s3c_device_wdt,
 	&samsung_asoc_dma,
 	&s5p6440_device_iis,
+	&s3c_device_timer[1],
+	&smdk6440_backlight_device,
 };
 
 static struct s3c2410_platform_i2c s5p6440_i2c0_data __initdata = {

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>
@@ -106,6 +108,45 @@ 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 +156,8 @@ 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 */
 };
 

arch/arm/mach-s5pc100/Kconfig

@@ -58,6 +58,7 @@ config MACH_SMDKC100
 	select SAMSUNG_DEV_ADC
 	select SAMSUNG_DEV_IDE
 	select SAMSUNG_DEV_KEYPAD
+	select SAMSUNG_DEV_PWM
 	select SAMSUNG_DEV_TS
 	select S5PC100_SETUP_FB_24BPP
 	select S5PC100_SETUP_I2C1

arch/arm/mach-s5pc100/mach-smdkc100.c

@@ -23,12 +23,15 @@
 #include <linux/fb.h>
 #include <linux/delay.h>
 #include <linux/input.h>
+#include <linux/pwm_backlight.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
 #include <mach/map.h>
 #include <mach/regs-fb.h>
+#include <mach/regs-gpio.h>
+
 #include <video/platform_lcd.h>
 
 #include <asm/irq.h>
@@ -107,9 +110,6 @@ static struct i2c_board_info i2c_devs1[] __initdata = {
 static void smdkc100_lcd_power_set(struct plat_lcd_data *pd,
 				   unsigned int power)
 {
-	/* backlight */
-	gpio_direction_output(S5PC100_GPD(0), power);
-
 	if (power) {
 		/* module reset */
 		gpio_direction_output(S5PC100_GPH0(6), 1);
@@ -179,6 +179,45 @@ static struct samsung_keypad_platdata smdkc100_keypad_data __initdata = {
 	.cols		= 8,
 };
 
+static int smdkc100_backlight_init(struct device *dev)
+{
+	int ret;
+
+	ret = gpio_request(S5PC100_GPD(0), "Backlight");
+	if (ret) {
+		printk(KERN_ERR "failed to request GPF for PWM-OUT0\n");
+		return ret;
+	}
+
+	/* Configure GPIO pin with S5PC100_GPD_TOUT_0 */
+	s3c_gpio_cfgpin(S5PC100_GPD(0), S3C_GPIO_SFN(2));
+
+	return 0;
+}
+
+static void smdkc100_backlight_exit(struct device *dev)
+{
+	s3c_gpio_cfgpin(S5PC100_GPD(0), S3C_GPIO_OUTPUT);
+	gpio_free(S5PC100_GPD(0));
+}
+
+static struct platform_pwm_backlight_data smdkc100_backlight_data = {
+	.pwm_id		= 0,
+	.max_brightness	= 255,
+	.dft_brightness	= 255,
+	.pwm_period_ns	= 78770,
+	.init		= smdkc100_backlight_init,
+	.exit		= smdkc100_backlight_exit,
+};
+
+static struct platform_device smdkc100_backlight_device = {
+	.name		= "pwm-backlight",
+	.dev		= {
+		.parent		= &s3c_device_timer[0].dev,
+		.platform_data	= &smdkc100_backlight_data,
+	},
+};
+
 static struct platform_device *smdkc100_devices[] __initdata = {
 	&s3c_device_adc,
 	&s3c_device_cfcon,
@@ -200,6 +239,8 @@ static struct platform_device *smdkc100_devices[] __initdata = {
 	&s5p_device_fimc1,
 	&s5p_device_fimc2,
 	&s5pc100_device_spdif,
+	&s3c_device_timer[0],
+	&smdkc100_backlight_device,
 };
 
 static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
@@ -233,7 +274,6 @@ static void __init smdkc100_machine_init(void)
 	s5pc100_spdif_setup_gpio(S5PC100_SPDIF_GPD);
 
 	/* LCD init */
-	gpio_request(S5PC100_GPD(0), "GPD");
 	gpio_request(S5PC100_GPH0(6), "GPH0");
 	smdkc100_lcd_power_set(&smdkc100_lcd_power_data, 0);
 	platform_add_devices(smdkc100_devices, ARRAY_SIZE(smdkc100_devices));

arch/arm/mach-s5pv210/Kconfig

@@ -130,6 +130,7 @@ config MACH_SMDKV210
 	select SAMSUNG_DEV_ADC
 	select SAMSUNG_DEV_IDE
 	select SAMSUNG_DEV_KEYPAD
+	select SAMSUNG_DEV_PWM
 	select SAMSUNG_DEV_TS
 	select S5PV210_SETUP_FB_24BPP
 	select S5PV210_SETUP_I2C1

arch/arm/mach-s5pv210/mach-smdkv210.c

@@ -18,6 +18,7 @@
 #include <linux/fb.h>
 #include <linux/gpio.h>
 #include <linux/delay.h>
+#include <linux/pwm_backlight.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -43,6 +44,7 @@
 #include <plat/keypad.h>
 #include <plat/pm.h>
 #include <plat/fb.h>
+#include <plat/gpio-cfg.h>
 
 /* Following are default values for UCON, ULCON and UFCON UART registers */
 #define SMDKV210_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
@@ -208,6 +210,45 @@ static struct s3c_fb_platdata smdkv210_lcd0_pdata __initdata = {
 	.setup_gpio	= s5pv210_fb_gpio_setup_24bpp,
 };
 
+static int smdkv210_backlight_init(struct device *dev)
+{
+	int ret;
+
+	ret = gpio_request(S5PV210_GPD0(3), "Backlight");
+	if (ret) {
+		printk(KERN_ERR "failed to request GPD for PWM-OUT 3\n");
+		return ret;
+	}
+
+	/* Configure GPIO pin with S5PV210_GPD_0_3_TOUT_3 */
+	s3c_gpio_cfgpin(S5PV210_GPD0(3), S3C_GPIO_SFN(2));
+
+	return 0;
+}
+
+static void smdkv210_backlight_exit(struct device *dev)
+{
+	s3c_gpio_cfgpin(S5PV210_GPD0(3), S3C_GPIO_OUTPUT);
+	gpio_free(S5PV210_GPD0(3));
+}
+
+static struct platform_pwm_backlight_data smdkv210_backlight_data = {
+	.pwm_id		= 3,
+	.max_brightness	= 255,
+	.dft_brightness	= 255,
+	.pwm_period_ns	= 78770,
+	.init		= smdkv210_backlight_init,
+	.exit		= smdkv210_backlight_exit,
+};
+
+static struct platform_device smdkv210_backlight_device = {
+	.name		= "pwm-backlight",
+	.dev		= {
+		.parent		= &s3c_device_timer[3].dev,
+		.platform_data	= &smdkv210_backlight_data,
+	},
+};
+
 static struct platform_device *smdkv210_devices[] __initdata = {
 	&s3c_device_adc,
 	&s3c_device_cfcon,
@@ -229,6 +270,8 @@ static struct platform_device *smdkv210_devices[] __initdata = {
 	&samsung_device_keypad,
 	&smdkv210_dm9000,
 	&smdkv210_lcd_lte480wv,
+	&s3c_device_timer[3],
+	&smdkv210_backlight_device,
 };
 
 static void __init smdkv210_dm9000_init(void)

arch/arm/plat-s3c24xx/Kconfig

@@ -56,13 +56,6 @@ config S3C24XX_DCLK
 	help
 	  Clock code for supporting DCLK/CLKOUT on S3C24XX architectures
 
-config S3C24XX_PWM
-	bool "PWM device support"
-	select HAVE_PWM
-	help
-	  Support for exporting the PWM timer blocks via the pwm device
-	  system.
-
 # gpio configurations
 
 config S3C24XX_GPIO_EXTRA

arch/arm/plat-samsung/Kconfig

@@ -273,6 +273,19 @@ config SAMSUNG_DEV_KEYPAD
 	help
 	  Compile in platform device definitions for keypad
 
+config SAMSUNG_DEV_PWM
+	bool
+	default y if ARCH_S3C2410
+	help
+	  Compile in platform device definition for PWM Timer
+
+config S3C24XX_PWM
+	bool "PWM device support"
+	select HAVE_PWM
+	help
+	  Support for exporting the PWM timer blocks via the pwm device
+	  system
+
 # DMA
 
 config S3C_DMA

arch/arm/plat-samsung/Makefile

@@ -59,6 +59,7 @@ obj-$(CONFIG_SAMSUNG_DEV_ADC)	+= dev-adc.o
 obj-$(CONFIG_SAMSUNG_DEV_IDE)	+= dev-ide.o
 obj-$(CONFIG_SAMSUNG_DEV_TS)	+= dev-ts.o
 obj-$(CONFIG_SAMSUNG_DEV_KEYPAD)	+= dev-keypad.o
+obj-$(CONFIG_SAMSUNG_DEV_PWM)	+= dev-pwm.o
 
 # DMA support
 

arch/arm/plat-samsung/dev-pwm.c

@@ -0,0 +1,53 @@
+/* linux/arch/arm/plat-samsung/dev-pwm.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Copyright (c) 2007 Ben Dooks
+ * Copyright (c) 2008 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>, <ben-linux@fluff.org>
+ *
+ * S3C series device definition for the PWM timer
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+
+#include <mach/irqs.h>
+
+#include <plat/devs.h>
+
+#define TIMER_RESOURCE_SIZE (1)
+
+#define TIMER_RESOURCE(_tmr, _irq)			\
+	(struct resource [TIMER_RESOURCE_SIZE]) {	\
+		[0] = {					\
+			.start	= _irq,			\
+			.end	= _irq,			\
+			.flags	= IORESOURCE_IRQ	\
+		}					\
+	}
+
+#define DEFINE_S3C_TIMER(_tmr_no, _irq)			\
+	.name		= "s3c24xx-pwm",		\
+	.id		= _tmr_no,			\
+	.num_resources	= TIMER_RESOURCE_SIZE,		\
+	.resource	= TIMER_RESOURCE(_tmr_no, _irq),	\
+
+/*
+ * since we already have an static mapping for the timer,
+ * we do not bother setting any IO resource for the base.
+ */
+
+struct platform_device s3c_device_timer[] = {
+	[0] = { DEFINE_S3C_TIMER(0, IRQ_TIMER0) },
+	[1] = { DEFINE_S3C_TIMER(1, IRQ_TIMER1) },
+	[2] = { DEFINE_S3C_TIMER(2, IRQ_TIMER2) },
+	[3] = { DEFINE_S3C_TIMER(3, IRQ_TIMER3) },
+	[4] = { DEFINE_S3C_TIMER(4, IRQ_TIMER4) },
+};
+EXPORT_SYMBOL(s3c_device_timer);

arch/arm/plat-samsung/pwm.c

@@ -20,10 +20,8 @@
 #include <linux/io.h>
 #include <linux/pwm.h>
 
-#include <mach/irqs.h>
 #include <mach/map.h>
 
-#include <plat/devs.h>
 #include <plat/regs-timer.h>
 
 struct pwm_device {
@@ -47,37 +45,6 @@ struct pwm_device {
 
 static struct clk *clk_scaler[2];
 
-/* Standard setup for a timer block. */
-
-#define TIMER_RESOURCE_SIZE (1)
-
-#define TIMER_RESOURCE(_tmr, _irq)			\
-	(struct resource [TIMER_RESOURCE_SIZE]) {	\
-		[0] = {					\
-			.start	= _irq,			\
-			.end	= _irq,			\
-			.flags	= IORESOURCE_IRQ	\
-		}					\
-	}
-
-#define DEFINE_S3C_TIMER(_tmr_no, _irq)			\
-	.name		= "s3c24xx-pwm",		\
-	.id		= _tmr_no,			\
-	.num_resources	= TIMER_RESOURCE_SIZE,		\
-	.resource	= TIMER_RESOURCE(_tmr_no, _irq),	\
-
-/* since we already have an static mapping for the timer, we do not
- * bother setting any IO resource for the base.
- */
-
-struct platform_device s3c_device_timer[] = {
-	[0] = { DEFINE_S3C_TIMER(0, IRQ_TIMER0) },
-	[1] = { DEFINE_S3C_TIMER(1, IRQ_TIMER1) },
-	[2] = { DEFINE_S3C_TIMER(2, IRQ_TIMER2) },
-	[3] = { DEFINE_S3C_TIMER(3, IRQ_TIMER3) },
-	[4] = { DEFINE_S3C_TIMER(4, IRQ_TIMER4) },
-};
-
 static inline int pwm_is_tdiv(struct pwm_device *pwm)
 {
 	return clk_get_parent(pwm->clk) == pwm->clk_div;