diff options
author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-09-07 09:48:59 +1000 |
---|---|---|
committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-09-07 09:48:59 +1000 |
commit | fff34b3412b9401a76ba9d021db1bd91cb0e02b6 (patch) | |
tree | 870ed2d1555004e7939d15b5099017aae61c97b8 /drivers/gpu/drm/i915/intel_panel.c | |
parent | 28e1e58fb668e262648fb8ee8a24154633f40507 (diff) | |
parent | 636802ef96eebe279b22ad9f9dacfe29291e45c7 (diff) |
Merge branch 'merge' into next
Brings in various bug fixes from 3.6-rcX
Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_panel.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 10c7d39034e..3df4f5fa892 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -213,7 +213,7 @@ static u32 intel_panel_compute_brightness(struct drm_device *dev, u32 val) return val; } -u32 intel_panel_get_backlight(struct drm_device *dev) +static u32 intel_panel_get_backlight(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; u32 val; @@ -311,9 +311,6 @@ 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; @@ -326,7 +323,7 @@ void intel_panel_enable_backlight(struct drm_device *dev, * we don't track the backlight dpms state, hence check whether * we have to do anything first. */ if (tmp & BLM_PWM_ENABLE) - return; + goto set_level; if (dev_priv->num_pipe == 3) tmp &= ~BLM_PIPE_SELECT_IVB; @@ -347,6 +344,14 @@ void intel_panel_enable_backlight(struct drm_device *dev, I915_WRITE(BLC_PWM_PCH_CTL1, tmp); } } + +set_level: + /* 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. + */ + 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) |