From d7d33fd85a6574ddce4cc0340f1856434b6a38ec Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Fri, 1 Apr 2016 16:02:41 +0300 Subject: [PATCH] drm/i915/bxt: Power down DDI PHYs separately during the per PHY uninit MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The power-down step logically belongs to the individual PHY uninit sequence so move it there. The only functional change is that we will power down now PHY 1 separately before PHY 0 and preserve the other bits in the register which are defined as reserved. Signed-off-by: Imre Deak Reviewed-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/1459515767-29228-11-git-send-email-imre.deak@intel.com --- drivers/gpu/drm/i915/intel_ddi.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index d50d2a33fc26..ad8f50eec8ff 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -1849,15 +1849,16 @@ 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_i915_private *dev_priv) { 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); } void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp) -- 2.20.1