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Merge "msm: mdss: Minimize cases of BL lock in update backlight"

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2015-07-01 20:18:35 -07:00
committed by Gerrit - the friendly Code Review server
parent 758da62739 b8946b19a5
commit 90cee04c60
1 changed files with 17 additions and 15 deletions
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drivers/video/msm/mdss/mdss_fb.c
+17 -15
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@@ -964,23 +964,25 @@ void mdss_fb_update_backlight(struct msm_fb_data_type *mfd)
u32 temp;
bool bl_notify = false;
mutex_lock(&mfd->bl_lock);
if (mfd->unset_bl_level && !mfd->bl_updated) {
pdata = dev_get_platdata(&mfd->pdev->dev);
if ((pdata) && (pdata->set_backlight)) {
mfd->bl_level = mfd->unset_bl_level;
temp = mfd->bl_level;
if (mfd->mdp.ad_calc_bl)
(*mfd->mdp.ad_calc_bl)(mfd, temp, &temp,
&bl_notify);
if (bl_notify)
mdss_fb_bl_update_notify(mfd);
pdata->set_backlight(pdata, temp);
mfd->bl_level_scaled = mfd->unset_bl_level;
mfd->bl_updated = 1;
if (mfd->unset_bl_level) {
mutex_lock(&mfd->bl_lock);
if (!mfd->bl_updated) {
pdata = dev_get_platdata(&mfd->pdev->dev);
if ((pdata) && (pdata->set_backlight)) {
mfd->bl_level = mfd->unset_bl_level;
temp = mfd->bl_level;
if (mfd->mdp.ad_calc_bl)
(*mfd->mdp.ad_calc_bl)(mfd, temp, &temp,
&bl_notify);
if (bl_notify)
mdss_fb_bl_update_notify(mfd);
pdata->set_backlight(pdata, temp);
mfd->bl_level_scaled = mfd->unset_bl_level;
mfd->bl_updated = 1;
}
}
mutex_unlock(&mfd->bl_lock);
}
mutex_unlock(&mfd->bl_lock);
}
static int mdss_fb_blank_sub(int blank_mode, struct fb_info *info,