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drm/i915/bxt: Update Uninit sequence for DDI PHYs

Message ID 1445938611-6543-1-git-send-email-sonika.jindal@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

sonika.jindal@intel.com Oct. 27, 2015, 9:36 a.m. UTC 
Un-initialize DDI PHYs as per the bspec update

Cc: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
---
 drivers/gpu/drm/i915/intel_ddi.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
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Patch

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index a65bf81..ba8327f 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -2723,6 +2723,10 @@  static void broxton_phy_uninit(struct drm_i915_private *dev_priv,
 	val = I915_READ(BXT_PHY_CTL_FAMILY(phy));
 	val &= ~COMMON_RESET_DIS;
 	I915_WRITE(BXT_PHY_CTL_FAMILY(phy), val);
+
+	val = I915_READ(BXT_P_CR_GT_DISP_PWRON);
+	val &= ~GT_DISPLAY_POWER_ON(phy);
+	I915_WRITE(BXT_P_CR_GT_DISP_PWRON, val);
 }
 
 void broxton_ddi_phy_uninit(struct drm_device *dev)
@@ -2731,9 +2735,6 @@  void broxton_ddi_phy_uninit(struct drm_device *dev)
 
 	broxton_phy_uninit(dev_priv, DPIO_PHY1);
 	broxton_phy_uninit(dev_priv, DPIO_PHY0);
-
-	/* FIXME: do this in broxton_phy_uninit per phy */
-	I915_WRITE(BXT_P_CR_GT_DISP_PWRON, 0);
 }
 
 static const char * const bxt_ddi_pll_names[] = {