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ARM: clps711x: edb7211: Control LCD backlight via PWM

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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>
This commit is contained in:
Alexander Shiyan 2013-05-13 21:07:35 +04:00 committed by Olof Johansson
parent 362168f86e
commit e337d724e8
1 changed files with 3 additions and 2 deletions
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5
arch/arm/mach-clps711x/board-edb7211.c
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@ -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,
};