From: Thierry Reding <treding@nvidia.com>
Date: Fri, 17 Jun 2016 17:11:53 +0000 (+0200)
Subject: drm/panel: simple: Update backlight state property
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=e4aa34289ec6a8a9f6a6f63d0e219db6ceaaf4c8;p=openwrt%2Fstaging%2Fblogic.git

drm/panel: simple: Update backlight state property

Some backlight drivers ignore the power property and instead only use
the state property. Fixup the panel driver to set the state property in
addition to the power property.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 359cd37d09cb..f503d12b3930 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -168,6 +168,7 @@ static int panel_simple_disable(struct drm_panel *panel)
 
 	if (p->backlight) {
 		p->backlight->props.power = FB_BLANK_POWERDOWN;
+		p->backlight->props.state |= BL_CORE_FBBLANK;
 		backlight_update_status(p->backlight);
 	}
 
@@ -235,6 +236,7 @@ static int panel_simple_enable(struct drm_panel *panel)
 		msleep(p->desc->delay.enable);
 
 	if (p->backlight) {
+		p->backlight->props.state &= ~BL_CORE_FBBLANK;
 		p->backlight->props.power = FB_BLANK_UNBLANK;
 		backlight_update_status(p->backlight);
 	}