diff options
| author | Kevin Huang <kevinh@nvidia.com> | 2011-09-13 16:26:40 -0700 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2011-09-14 14:34:12 -0700 |
| commit | 92ec78210ee1526dc2c35b7775674105aa6f729b (patch) | |
| tree | fa3833984321afa75171ef95824a7c4c3aea1f97 | |
| parent | 5d171387f978f5b420b5ed8cfb6c60365f8bddc8 (diff) | |
video: backlight: tegra: Add check_fb hook.
Bug 873860
Change-Id: Ia29a74689c150fec782e91884bd4116bd89f253c
Reviewed-on: http://git-master/r/52135
Reviewed-by: Kevin Huang (Eng-SW) <kevinh@nvidia.com>
Tested-by: Kevin Huang (Eng-SW) <kevinh@nvidia.com>
Reviewed-by: Robert Morell <rmorell@nvidia.com>
| -rw-r--r-- | drivers/video/backlight/tegra_pwm_bl.c | 10 | ||||
| -rw-r--r-- | include/linux/tegra_pwm_bl.h | 3 |
2 files changed, 13 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; diff --git a/include/linux/tegra_pwm_bl.h b/include/linux/tegra_pwm_bl.h index 68fecb522cfc..71a81f2eda88 100644 --- a/include/linux/tegra_pwm_bl.h +++ b/include/linux/tegra_pwm_bl.h @@ -12,6 +12,8 @@ #ifndef TEGRA_PWM_BL_H #define TEGRA_PWM_BL_H +#include <linux/backlight.h> + struct platform_tegra_pwm_backlight_data { int which_dc; int which_pwm; @@ -23,6 +25,7 @@ struct platform_tegra_pwm_backlight_data { unsigned int clk_div; unsigned int clk_select; int (*notify)(struct device *dev, int brightness); + int (*check_fb)(struct device *dev, struct fb_info *info); }; #endif /* TERGA_PWM_BL_H */ |