[PATCH 19/25] drm/i915/tgl: Wa_14011059788

[Timo Aaltonen]

From: Matt Atwood <matthew.s.atwood at intel.com>

BugLink: https://bugs.launchpad.net/bugs/1855399

Reflect recent Bspec changes

v2: fix whitespace, typo

Signed-off-by: Matt Atwood <matthew.s.atwood at intel.com>
Reviewed-by: Radhakrishna Sripada <Radhakrishna.sripada at intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415193535.14597-1-matthew.s.atwood@intel.com
(cherry picked from commit f9d77427c3fd27fd69ac54067f968784dc725eb6)
Signed-off-by: Timo Aaltonen <timo.aaltonen at canonical.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 35a8fe2c8f5b..f323ac7a9882 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -6844,6 +6844,10 @@ static void tgl_init_clock_gating(struct drm_i915_private *dev_priv)
 	if (IS_TGL_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_A0))
 		I915_WRITE(GEN9_CLKGATE_DIS_3, I915_READ(GEN9_CLKGATE_DIS_3) |
 			   TGL_VRH_GATING_DIS);
+
+	/* Wa_14011059788:tgl */
+	intel_uncore_rmw(&dev_priv->uncore, GEN10_DFR_RATIO_EN_AND_CHICKEN,
+			 0, DFR_DISABLE);
 }
 
 static void cnp_init_clock_gating(struct drm_i915_private *dev_priv)
-- 
2.25.1