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| author | Inderpal Singh <inderpal.singh@linaro.org> | 2012-07-05 08:31:46 +0530 |
|---|---|---|
| committer | Tushar Behera <tushar.behera@linaro.org> | 2012-07-05 17:10:09 +0530 |
| commit | 50c3e53db4676c29bb183d11e861f3b406663050 (patch) | |
| tree | 98c3df3c6c6a84c535774974225336a8d67697c5 | |
| parent | 64cab68bd916661aea9178c9e2be3659c75e1f5d (diff) | |
BACKLIGHT: PWM: Implement shutdown functionsamsung-linux-3.5-rc2-2012.06-1
Implemented shutdown function so that LCD backlight can be
turned off during system halt.
Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
| -rw-r--r-- | drivers/video/backlight/pwm_bl.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index 342b7d7cbb63..b9f3c4088a35 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c @@ -165,6 +165,15 @@ static int pwm_backlight_remove(struct platform_device *pdev) return 0; } +static void pwm_backlight_shutdown(struct platform_device *pdev) +{ + struct backlight_device *bl = platform_get_drvdata(pdev); + struct pwm_bl_data *pb = dev_get_drvdata(&bl->dev); + + pwm_config(pb->pwm, 0, pb->period); + pwm_disable(pb->pwm); +} + #ifdef CONFIG_PM static int pwm_backlight_suspend(struct device *dev) { @@ -203,6 +212,7 @@ static struct platform_driver pwm_backlight_driver = { }, .probe = pwm_backlight_probe, .remove = pwm_backlight_remove, + .shutdown = pwm_backlight_shutdown, }; module_platform_driver(pwm_backlight_driver); |