diff options
Diffstat (limited to 'drivers/video/backlight/tegra_pwm_bl.c')
| -rw-r--r-- | drivers/video/backlight/tegra_pwm_bl.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/video/backlight/tegra_pwm_bl.c b/drivers/video/backlight/tegra_pwm_bl.c index 93f4645128a0..5bd2113a37a9 100644 --- a/drivers/video/backlight/tegra_pwm_bl.c +++ b/drivers/video/backlight/tegra_pwm_bl.c @@ -27,6 +27,7 @@ struct tegra_pwm_bl_data { int which_dc; int (*notify)(struct device *, int brightness); struct tegra_dc_pwm_params params; + int (*check_fb)(struct device *dev, struct fb_info *info); }; static int tegra_pwm_backlight_update_status(struct backlight_device *bl) @@ -71,9 +72,17 @@ static int tegra_pwm_backlight_get_brightness(struct backlight_device *bl) return bl->props.brightness; } +static int tegra_pwm_backlight_check_fb(struct backlight_device *bl, + struct fb_info *info) +{ + struct tegra_pwm_bl_data *tbl = dev_get_drvdata(&bl->dev); + return !tbl->check_fb || tbl->check_fb(tbl->dev, info); +} + static const struct backlight_ops tegra_pwm_backlight_ops = { .update_status = tegra_pwm_backlight_update_status, .get_brightness = tegra_pwm_backlight_get_brightness, + .check_fb = tegra_pwm_backlight_check_fb, }; static int tegra_pwm_backlight_probe(struct platform_device *pdev) @@ -100,6 +109,7 @@ static int tegra_pwm_backlight_probe(struct platform_device *pdev) tbl->dev = &pdev->dev; tbl->which_dc = data->which_dc; tbl->notify = data->notify; + tbl->check_fb = data->check_fb; tbl->params.which_pwm = data->which_pwm; tbl->params.gpio_conf_to_sfio = data->gpio_conf_to_sfio; tbl->params.switch_to_sfio = data->switch_to_sfio; |