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authorAlexander Shiyan <shc_work@mail.ru>2013-05-13 21:07:35 +0400
committerOlof Johansson <olof@lixom.net>2013-06-12 02:47:43 +0400
commite337d724e8ec40f80ade3371c002454f419a2c87 (patch)
tree3f076efa8cf171d2b6546d3ebd4b1b5737245758 /arch/arm/mach-clps711x
parent362168f86e947ace670e0f670e558994d388ed6a (diff)
downloadlinux-e337d724e8ec40f80ade3371c002454f419a2c87.tar.xz
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>
Diffstat (limited to 'arch/arm/mach-clps711x')
-rw-r--r--arch/arm/mach-clps711x/board-edb7211.c5
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,
};