diff options
| -rw-r--r-- | drivers/video/display/panel-s6e8aa0.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/video/display/panel-s6e8aa0.c b/drivers/video/display/panel-s6e8aa0.c index 1bfa30f0511..9f82a9cc58a 100644 --- a/drivers/video/display/panel-s6e8aa0.c +++ b/drivers/video/display/panel-s6e8aa0.c @@ -35,6 +35,7 @@ #include <video/panel-s6e8aa0.h> #define LDI_MTP_LENGTH 24 +#define MAX_BRIGHTNESS 100 #define GAMMA_LEVEL_NUM 25 #define GAMMA_TABLE_LEN 26 #define S6E8AA0_PANEL_COND_LEN 39 @@ -906,6 +907,16 @@ static int s6e8aa0_get_brightness(struct backlight_device *bd) return bd->props.brightness; } +static int s6e8aa0_convert_brightness(int brightness) +{ + if (brightness >= MAX_BRIGHTNESS) + return GAMMA_LEVEL_NUM - 1; + else if (brightness > 0) + return (brightness / 4); + else + return 0; +} + static int s6e8aa0_update_status(struct backlight_device *bd) { struct s6e8aa0 *lcd = bl_get_data(bd); @@ -914,7 +925,7 @@ static int s6e8aa0_update_status(struct backlight_device *bd) mutex_lock(&lcd->mutex); - lcd->brightness = bd->props.brightness; + lcd->brightness = s6e8aa0_convert_brightness(bd->props.brightness); if (lcd->entity.state != DISPLAY_ENTITY_STATE_ON) goto unlock; @@ -1342,8 +1353,8 @@ static int s6e8aa0_probe(struct platform_device *pdev) mutex_init(&lcd->mutex); - lcd->bd->props.max_brightness = GAMMA_LEVEL_NUM - 1; - lcd->bd->props.brightness = GAMMA_LEVEL_NUM - 1; + lcd->bd->props.max_brightness = MAX_BRIGHTNESS; + lcd->bd->props.brightness = MAX_BRIGHTNESS; lcd->brightness = GAMMA_LEVEL_NUM - 1; lcd->entity.of_node = pdev->dev.of_node; |