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path: root/drivers/video/backlight/pwm_bl.c
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Diffstat (limited to 'drivers/video/backlight/pwm_bl.c')
-rw-r--r--drivers/video/backlight/pwm_bl.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index df9e0b32cf39..9d2ec2a1cce8 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -22,8 +22,10 @@
22 22
23struct pwm_bl_data { 23struct pwm_bl_data {
24 struct pwm_device *pwm; 24 struct pwm_device *pwm;
25 struct device *dev;
25 unsigned int period; 26 unsigned int period;
26 int (*notify)(int brightness); 27 int (*notify)(struct device *,
28 int brightness);
27}; 29};
28 30
29static int pwm_backlight_update_status(struct backlight_device *bl) 31static int pwm_backlight_update_status(struct backlight_device *bl)
@@ -39,7 +41,7 @@ static int pwm_backlight_update_status(struct backlight_device *bl)
39 brightness = 0; 41 brightness = 0;
40 42
41 if (pb->notify) 43 if (pb->notify)
42 brightness = pb->notify(brightness); 44 brightness = pb->notify(pb->dev, brightness);
43 45
44 if (brightness == 0) { 46 if (brightness == 0) {
45 pwm_config(pb->pwm, 0, pb->period); 47 pwm_config(pb->pwm, 0, pb->period);
@@ -88,6 +90,7 @@ static int pwm_backlight_probe(struct platform_device *pdev)
88 90
89 pb->period = data->pwm_period_ns; 91 pb->period = data->pwm_period_ns;
90 pb->notify = data->notify; 92 pb->notify = data->notify;
93 pb->dev = &pdev->dev;
91 94
92 pb->pwm = pwm_request(data->pwm_id, "backlight"); 95 pb->pwm = pwm_request(data->pwm_id, "backlight");
93 if (IS_ERR(pb->pwm)) { 96 if (IS_ERR(pb->pwm)) {
@@ -146,7 +149,7 @@ static int pwm_backlight_suspend(struct platform_device *pdev,
146 struct pwm_bl_data *pb = dev_get_drvdata(&bl->dev); 149 struct pwm_bl_data *pb = dev_get_drvdata(&bl->dev);
147 150
148 if (pb->notify) 151 if (pb->notify)
149 pb->notify(0); 152 pb->notify(pb->dev, 0);
150 pwm_config(pb->pwm, 0, pb->period); 153 pwm_config(pb->pwm, 0, pb->period);
151 pwm_disable(pb->pwm); 154 pwm_disable(pb->pwm);
152 return 0; 155 return 0;