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-rw-r--r--drivers/gpu/drm/i915/display/intel_display_power.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index 64943179c05e..41aec2998ada 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -1780,6 +1780,13 @@ out:
vlv_punit_put(dev_priv);
}
+static void chv_pipe_power_well_sync_hw(struct drm_i915_private *dev_priv,
+ struct i915_power_well *power_well)
+{
+ intel_de_write(dev_priv, DISPLAY_PHY_CONTROL,
+ dev_priv->chv_phy_control);
+}
+
static void chv_pipe_power_well_enable(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
@@ -2762,7 +2769,7 @@ static const struct i915_power_well_ops i9xx_always_on_power_well_ops = {
};
static const struct i915_power_well_ops chv_pipe_power_well_ops = {
- .sync_hw = i9xx_power_well_sync_hw_noop,
+ .sync_hw = chv_pipe_power_well_sync_hw,
.enable = chv_pipe_power_well_enable,
.disable = chv_pipe_power_well_disable,
.is_enabled = chv_pipe_power_well_enabled,
@@ -5163,11 +5170,10 @@ static void chv_phy_control_init(struct drm_i915_private *dev_priv)
dev_priv->chv_phy_assert[DPIO_PHY1] = true;
}
- intel_de_write(dev_priv, DISPLAY_PHY_CONTROL,
- dev_priv->chv_phy_control);
-
drm_dbg_kms(&dev_priv->drm, "Initial PHY_CONTROL=0x%08x\n",
dev_priv->chv_phy_control);
+
+ /* Defer application of initial phy_control to enabling the powerwell */
}
static void vlv_cmnlane_wa(struct drm_i915_private *dev_priv)