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authorMark Brown <broonie@opensource.wolfsonmicro.com>2013-04-15 20:27:12 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-04-15 20:27:12 +0400
commitcd2d95d97c8d1b66467507400c63d707ddb1deba (patch)
tree7ad5223ba88110ca6735637c9eef327515e9bb96 /drivers/gpu/drm/i915/intel_panel.c
parent88dd75af0e49e1dabef6f7c7f7f4fa0234b9b988 (diff)
parent41ef2d5678d83af030125550329b6ae8b74618fa (diff)
downloadlinux-cd2d95d97c8d1b66467507400c63d707ddb1deba.tar.xz
Merge tag 'v3.9-rc7' into regulator-fix-core
Linux 3.9-rc7 Trivial context overlap conflicts: MAINTAINERS
Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
-rw-r--r--drivers/gpu/drm/i915/intel_panel.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index a3730e0289e5..bee8cb6108a7 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -321,9 +321,6 @@ void intel_panel_enable_backlight(struct drm_device *dev,
if (dev_priv->backlight_level == 0)
dev_priv->backlight_level = intel_panel_get_max_backlight(dev);
- dev_priv->backlight_enabled = true;
- intel_panel_actually_set_backlight(dev, dev_priv->backlight_level);
-
if (INTEL_INFO(dev)->gen >= 4) {
uint32_t reg, tmp;
@@ -359,12 +356,12 @@ void intel_panel_enable_backlight(struct drm_device *dev,
}
set_level:
- /* Check the current backlight level and try to set again if it's zero.
- * On some machines, BLC_PWM_CPU_CTL is cleared to zero automatically
- * when BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1 are written.
+ /* Call below after setting BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1.
+ * BLC_PWM_CPU_CTL may be cleared to zero automatically when these
+ * registers are set.
*/
- if (!intel_panel_get_backlight(dev))
- intel_panel_actually_set_backlight(dev, dev_priv->backlight_level);
+ dev_priv->backlight_enabled = true;
+ intel_panel_actually_set_backlight(dev, dev_priv->backlight_level);
}
static void intel_panel_init_backlight(struct drm_device *dev)