diff options
| author | Alexander Shiyan <shc_work@mail.ru> | 2013-05-13 19:07:35 +0200 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-06-12 00:47:43 +0200 |
| commit | e337d724e8ec40f80ade3371c002454f419a2c87 (patch) | |
| tree | 3f076efa8cf171d2b6546d3ebd4b1b5737245758 | |
| parent | ARM: clps711x: edb7211: Add support for I2C (diff) | |
| download | linux-e337d724e8ec40f80ade3371c002454f419a2c87.tar.xz linux-e337d724e8ec40f80ade3371c002454f419a2c87.zip | |
ARM: clps711x: edb7211: Control LCD backlight via PWM
This patch provide control LCD backlight via PWM. GPIO is used
only for switch backlight ON and OFF.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Olof Johansson <olof@lixom.net>
| -rw-r--r-- | arch/arm/mach-clps711x/board-edb7211.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/mach-clps711x/board-edb7211.c b/arch/arm/mach-clps711x/board-edb7211.c index 970f4e17ba76..9dfb990f0801 100644 --- a/arch/arm/mach-clps711x/board-edb7211.c +++ b/arch/arm/mach-clps711x/board-edb7211.c @@ -109,13 +109,14 @@ static struct plat_lcd_data edb7211_lcd_power_pdata = { static void edb7211_lcd_backlight_set_intensity(int intensity) { - gpio_set_value(EDB7211_LCDBL, intensity); + gpio_set_value(EDB7211_LCDBL, !!intensity); + clps_writel((clps_readl(PMPCON) & 0xf0ff) | (intensity << 8), PMPCON); } static struct generic_bl_info edb7211_lcd_backlight_pdata = { .name = "lcd-backlight.0", .default_intensity = 0x01, - .max_intensity = 0x01, + .max_intensity = 0x0f, .set_bl_intensity = edb7211_lcd_backlight_set_intensity, }; |