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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-27 07:15:30 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-27 07:15:30 -0700 |
| commit | a7bdf7fa33127bf08eb0810698bca607a9462df4 (patch) | |
| tree | 2f4be686e49710d10cc4f5ebc2d5f06ae030b9bd /drivers/gpu/drm/i915/intel_panel.c | |
| parent | 7fda953ffed1b94aa68f80c6c3ab312328aedcb3 (diff) | |
| parent | fea7a08acb13524b47711625eebea40a0ede69a0 (diff) | |
Merge v3.6-rc3 into usb-next
This picks up fixes that we need in this branch for testing.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 10c7d39034e1..3df4f5fa892a 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) |