From cfc3899fcd0b3b990b29d3d33f75f4edf715e7d1 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 10 Nov 2009 17:20:40 +0000 Subject: [PATCH] backlight: Pass device through notify callback in the pwm driver Add the device to the notify callback's arguments in the PWM backlight driver. This brings the notify callback into line with the other callbacks defined by this driver. Signed-off-by: Ben Dooks Signed-off-by: Simtec Linux Team Signed-off-by: Richard Purdie --- drivers/video/backlight/pwm_bl.c | 9 ++++++--- include/linux/pwm_backlight.h | 2 +- 2 files changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index df9e0b3..9d2ec2a 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c @@ -22,8 +22,10 @@ struct pwm_bl_data { struct pwm_device *pwm; + struct device *dev; unsigned int period; - int (*notify)(int brightness); + int (*notify)(struct device *, + int brightness); }; static int pwm_backlight_update_status(struct backlight_device *bl) @@ -39,7 +41,7 @@ static int pwm_backlight_update_status(struct backlight_device *bl) brightness = 0; if (pb->notify) - brightness = pb->notify(brightness); + brightness = pb->notify(pb->dev, brightness); if (brightness == 0) { pwm_config(pb->pwm, 0, pb->period); @@ -88,6 +90,7 @@ static int pwm_backlight_probe(struct platform_device *pdev) pb->period = data->pwm_period_ns; pb->notify = data->notify; + pb->dev = &pdev->dev; pb->pwm = pwm_request(data->pwm_id, "backlight"); if (IS_ERR(pb->pwm)) { @@ -146,7 +149,7 @@ static int pwm_backlight_suspend(struct platform_device *pdev, struct pwm_bl_data *pb = dev_get_drvdata(&bl->dev); if (pb->notify) - pb->notify(0); + pb->notify(pb->dev, 0); pwm_config(pb->pwm, 0, pb->period); pwm_disable(pb->pwm); return 0; diff --git a/include/linux/pwm_backlight.h b/include/linux/pwm_backlight.h index 7a9754c..01b3d75 100644 --- a/include/linux/pwm_backlight.h +++ b/include/linux/pwm_backlight.h @@ -10,7 +10,7 @@ struct platform_pwm_backlight_data { unsigned int dft_brightness; unsigned int pwm_period_ns; int (*init)(struct device *dev); - int (*notify)(int brightness); + int (*notify)(struct device *dev, int brightness); void (*exit)(struct device *dev); }; -- 2.7.4