static int mdp3_bl_scale_config(struct msm_fb_data_type *mfd,
struct mdp_bl_scale_data *data)
{
int ret = 0;
int curr_bl;
mutex_lock(&mfd->bl_lock);
curr_bl = mfd->bl_level;
mfd->bl_scale = data->scale;
mfd->bl_min_lvl = data->min_lvl;
pr_debug("update scale = %d, min_lvl = %d\n", mfd->bl_scale,
mfd->bl_min_lvl);
/* update current backlight to use new scaling*/
mdss_fb_set_backlight(mfd, curr_bl);
mutex_unlock(&mfd->bl_lock);
return ret;
}
static void mdss_fb_set_bl_brightness(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct msm_fb_data_type *mfd = dev_get_drvdata(led_cdev->dev->parent);
int bl_lvl;
if (value > MDSS_MAX_BL_BRIGHTNESS)
value = MDSS_MAX_BL_BRIGHTNESS;
/* This maps light HAL backlight level 0 to 4095 into
driver backlight level 0 to bl_max with rounding */
MDSS_BRIGHT_TO_BL(bl_lvl, value, mfd->panel_info->bl_max,
MDSS_MAX_BL_BRIGHTNESS);
if (!bl_lvl && value)
bl_lvl = 1;
if (!IS_CALIB_MODE_BL(mfd) && (!mfd->ext_bl_ctrl || !value ||
!mfd->bl_level)) {
mutex_lock(&mfd->bl_lock);
mdss_fb_set_backlight(mfd, bl_lvl);
mutex_unlock(&mfd->bl_lock);
}
}
