diff options
| -rw-r--r-- | arch/arm/mach-pxa/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/zylonite.c | 26 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/zylonite_pxa300.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/zylonite_pxa320.c | 2 | ||||
| -rw-r--r-- | include/asm-arm/arch-pxa/zylonite.h | 1 |
5 files changed, 21 insertions, 14 deletions
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index 9c01505b1825..b7a3281c420e 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -116,6 +116,7 @@ config MACH_COLIBRI config MACH_ZYLONITE bool "PXA3xx Development Platform" select PXA3xx + select HAVE_PWM config MACH_LITTLETON bool "PXA3xx Form Factor Platform (aka Littleton)" @@ -276,6 +277,7 @@ config PXA_SSP config PXA_PWM tristate + default BACKLIGHT_PWM help Enable support for PXA2xx/PXA3xx PWM controllers endif diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c index 4a0028087ea6..b13bb9385138 100644 --- a/arch/arm/mach-pxa/zylonite.c +++ b/arch/arm/mach-pxa/zylonite.c @@ -18,6 +18,7 @@ #include <linux/interrupt.h> #include <linux/init.h> #include <linux/platform_device.h> +#include <linux/pwm_backlight.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -28,12 +29,12 @@ #include <asm/arch/mmc.h> #include <asm/arch/pxa27x_keypad.h> +#include "devices.h" #include "generic.h" #define MAX_SLOTS 3 struct platform_mmc_slot zylonite_mmc_slot[MAX_SLOTS]; -int gpio_backlight; int gpio_eth_irq; int wm9713_irq; @@ -62,10 +63,20 @@ static struct platform_device smc91x_device = { }; #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE) -static void zylonite_backlight_power(int on) -{ - gpio_set_value(gpio_backlight, on); -} +static struct platform_pwm_backlight_data zylonite_backlight_data = { + .pwm_id = 3, + .max_brightness = 100, + .dft_brightness = 100, + .pwm_period_ns = 10000, +}; + +static struct platform_device zylonite_backlight_device = { + .name = "pwm-backlight", + .dev = { + .parent = &pxa27x_device_pwm1.dev, + .platform_data = &zylonite_backlight_data, + }, +}; static struct pxafb_mode_info toshiba_ltm035a776c_mode = { .pixclock = 110000, @@ -98,7 +109,6 @@ static struct pxafb_mode_info toshiba_ltm04c380k_mode = { static struct pxafb_mach_info zylonite_toshiba_lcd_info = { .num_modes = 1, .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, - .pxafb_backlight_power = zylonite_backlight_power, }; static struct pxafb_mode_info sharp_ls037_modes[] = { @@ -134,13 +144,11 @@ static struct pxafb_mach_info zylonite_sharp_lcd_info = { .modes = sharp_ls037_modes, .num_modes = 2, .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, - .pxafb_backlight_power = zylonite_backlight_power, }; static void __init zylonite_init_lcd(void) { - /* backlight GPIO: output, default on */ - gpio_direction_output(gpio_backlight, 1); + platform_device_register(&zylonite_backlight_device); if (lcd_id & 0x20) { set_pxa_fb_info(&zylonite_sharp_lcd_info); diff --git a/arch/arm/mach-pxa/zylonite_pxa300.c b/arch/arm/mach-pxa/zylonite_pxa300.c index 324fb9daae28..6f7ae972b8db 100644 --- a/arch/arm/mach-pxa/zylonite_pxa300.c +++ b/arch/arm/mach-pxa/zylonite_pxa300.c @@ -50,6 +50,7 @@ static mfp_cfg_t common_mfp_cfg[] __initdata = { GPIO75_LCD_BIAS, GPIO76_LCD_VSYNC, GPIO127_LCD_CS_N, + GPIO20_PWM3_OUT, /* backlight */ /* BTUART */ GPIO111_UART2_RTS, @@ -200,9 +201,6 @@ void __init zylonite_pxa300_init(void) /* detect LCD panel */ zylonite_detect_lcd_panel(); - /* GPIO pin assignment */ - gpio_backlight = mfp_to_gpio(MFP_PIN_GPIO20); - /* MMC card detect & write protect for controller 0 */ zylonite_mmc_slot[0].gpio_cd = EXT_GPIO(0); zylonite_mmc_slot[0].gpio_wp = EXT_GPIO(2); diff --git a/arch/arm/mach-pxa/zylonite_pxa320.c b/arch/arm/mach-pxa/zylonite_pxa320.c index 193d07903b06..2b4fc34919ac 100644 --- a/arch/arm/mach-pxa/zylonite_pxa320.c +++ b/arch/arm/mach-pxa/zylonite_pxa320.c @@ -49,6 +49,7 @@ static mfp_cfg_t mfp_cfg[] __initdata = { GPIO15_2_LCD_LCLK, GPIO16_2_LCD_PCLK, GPIO17_2_LCD_BIAS, + GPIO14_PWM3_OUT, /* backlight */ /* FFUART */ GPIO41_UART1_RXD | MFP_LPM_EDGE_FALL, @@ -187,7 +188,6 @@ void __init zylonite_pxa320_init(void) zylonite_detect_lcd_panel(); /* GPIO pin assignment */ - gpio_backlight = mfp_to_gpio(MFP_PIN_GPIO14); gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO9); /* MMC card detect & write protect for controller 0 */ diff --git a/include/asm-arm/arch-pxa/zylonite.h b/include/asm-arm/arch-pxa/zylonite.h index 4881b80f0f90..de577de8d18c 100644 --- a/include/asm-arm/arch-pxa/zylonite.h +++ b/include/asm-arm/arch-pxa/zylonite.h @@ -15,7 +15,6 @@ struct platform_mmc_slot { extern struct platform_mmc_slot zylonite_mmc_slot[]; -extern int gpio_backlight; extern int gpio_eth_irq; extern int wm9713_irq; |