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| author | Amaury Pouly <amaury.pouly@gmail.com> | 2014-06-30 20:57:37 +0200 |
|---|---|---|
| committer | Amaury Pouly <amaury.pouly@gmail.com> | 2014-06-30 20:57:37 +0200 |
| commit | 6e575b6c7011827c042cba7b27537c1ceec9ef24 (patch) | |
| tree | fcde3d75a8b71afc4800011c79097321a38013b3 /firmware | |
| parent | ae9b78ee2e89e425aadf4aac6a52119ef938a784 (diff) | |
sonynwz: fix backlight
Apparently the backlight driver is leaking current even when the PWM set to 0.
This patch should greatly improve the battery life of the device.
Change-Id: I76bbc8a87cae452e599b37de17e91f373cee58bc
Diffstat (limited to 'firmware')
| -rw-r--r-- | firmware/target/arm/imx233/sony-nwz/backlight-nwz.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/firmware/target/arm/imx233/sony-nwz/backlight-nwz.c b/firmware/target/arm/imx233/sony-nwz/backlight-nwz.c index ad3ef484db..d99d21386b 100644 --- a/firmware/target/arm/imx233/sony-nwz/backlight-nwz.c +++ b/firmware/target/arm/imx233/sony-nwz/backlight-nwz.c @@ -29,8 +29,10 @@ void _backlight_set_brightness(int brightness) { + bool en = brightness > 0; imx233_pwm_setup_simple(2, 24000, 100 - brightness); - imx233_pwm_enable(2, true); + imx233_pwm_enable(2, en); + imx233_pinctrl_set_gpio(0, 10, en); } bool _backlight_init(void) |