diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_runtime_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_runtime_pm.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index 80e8bd4b43b52..8f9797f179912 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -900,6 +900,17 @@ static bool vlv_power_well_enabled(struct drm_i915_private *dev_priv, return enabled; } +static void vlv_init_display_clock_gating(struct drm_i915_private *dev_priv) +{ + I915_WRITE(DSPCLK_GATE_D, VRHUNIT_CLOCK_GATE_DISABLE); + + /* + * Disable trickle feed and enable pnd deadline calculation + */ + I915_WRITE(MI_ARB_VLV, MI_ARB_DISPLAY_TRICKLE_FEED_DISABLE); + I915_WRITE(CBR1_VLV, 0); +} + static void vlv_display_power_well_init(struct drm_i915_private *dev_priv) { enum pipe pipe; @@ -922,6 +933,8 @@ static void vlv_display_power_well_init(struct drm_i915_private *dev_priv) I915_WRITE(DPLL(pipe), val); } + vlv_init_display_clock_gating(dev_priv); + spin_lock_irq(&dev_priv->irq_lock); valleyview_enable_display_irqs(dev_priv); spin_unlock_irq(&dev_priv->irq_lock); |