[PATCH 13/15] ARM: clps711x: edb7211: Control LCD backlight via PWM
Alexander Shiyan
shc_work at mail.ru
Mon May 13 13:07:35 EDT 2013
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 at mail.ru>
---
arch/arm/mach-clps711x/board-edb7211.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-clps711x/board-edb7211.c b/arch/arm/mach-clps711x/board-edb7211.c
index 970f4e1..9dfb990 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,
};
--
1.8.1.5
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