diff options
| -rw-r--r-- | drivers/video/backlight/lcd.c | 2 | ||||
| -rw-r--r-- | drivers/video/backlight/platform_lcd.c | 11 | ||||
| -rw-r--r-- | include/linux/lcd.h | 16 |
3 files changed, 18 insertions, 11 deletions
diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c index 713f7fb8b10a..dd175b446180 100644 --- a/drivers/video/backlight/lcd.c +++ b/drivers/video/backlight/lcd.c @@ -54,7 +54,7 @@ static int fb_notifier_callback(struct notifier_block *self, if (!ld->ops) return 0; - if (ld->ops->check_fb && !ld->ops->check_fb(ld, info)) + if (ld->ops->controls_device && !ld->ops->controls_device(ld, info->device)) return 0; if (fb_lcd && fb_lcd != ld) return 0; diff --git a/drivers/video/backlight/platform_lcd.c b/drivers/video/backlight/platform_lcd.c index 69a22d1a8a35..c9fe50f4d8ed 100644 --- a/drivers/video/backlight/platform_lcd.c +++ b/drivers/video/backlight/platform_lcd.c @@ -9,7 +9,6 @@ #include <linux/module.h> #include <linux/platform_device.h> -#include <linux/fb.h> #include <linux/lcd.h> #include <linux/slab.h> @@ -50,17 +49,17 @@ static int platform_lcd_set_power(struct lcd_device *lcd, int power) return 0; } -static int platform_lcd_match(struct lcd_device *lcd, struct fb_info *info) +static bool platform_lcd_controls_device(struct lcd_device *lcd, struct device *display_device) { struct platform_lcd *plcd = to_our_lcd(lcd); - return plcd->us->parent == info->device; + return plcd->us->parent == display_device; } static const struct lcd_ops platform_lcd_ops = { - .get_power = platform_lcd_get_power, - .set_power = platform_lcd_set_power, - .check_fb = platform_lcd_match, + .get_power = platform_lcd_get_power, + .set_power = platform_lcd_set_power, + .controls_device = platform_lcd_controls_device, }; static int platform_lcd_probe(struct platform_device *pdev) diff --git a/include/linux/lcd.h b/include/linux/lcd.h index dfcc54d327f5..8399b5ed48f2 100644 --- a/include/linux/lcd.h +++ b/include/linux/lcd.h @@ -35,7 +35,6 @@ */ struct lcd_device; -struct fb_info; struct lcd_properties { /* The maximum value for contrast (read-only) */ @@ -54,9 +53,18 @@ struct lcd_ops { int (*set_contrast)(struct lcd_device *, int contrast); /* Set LCD panel mode (resolutions ...) */ int (*set_mode)(struct lcd_device *, struct fb_videomode *); - /* Check if given framebuffer device is the one LCD is bound to; - return 0 if not, !=0 if it is. If NULL, lcd always matches the fb. */ - int (*check_fb)(struct lcd_device *, struct fb_info *); + + /* + * Check if the LCD controls the given display device. This + * operation is optional and if not implemented it is assumed that + * the display is always the one controlled by the LCD. + * + * RETURNS: + * + * If display_dev is NULL or display_dev matches the device controlled by + * the LCD, return true. Otherwise return false. + */ + bool (*controls_device)(struct lcd_device *lcd, struct device *display_device); }; struct lcd_device { |