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Commit 0a790cdb authored by Paulo Zanoni's avatar Paulo Zanoni Committed by Daniel Vetter
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drm/i915: implement WADPOClockGatingDisable for LPT 



This should prevent mode set failures on LPT.

Signed-off-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: default avatarDamien Lespiau <damien.lespiau@intel.com>
[danvet: Pimp the w/a tag to fit into Damien's new scheme.]
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 7dd23ba0

drivers/gpu/drm/i915/intel_pm.c

+5 −0
Original line number Diff line number Diff line
@@ -4093,6 +4093,11 @@ static void lpt_init_clock_gating(struct drm_device *dev) 
		I915_WRITE(SOUTH_DSPCLK_GATE_D,

			   I915_READ(SOUTH_DSPCLK_GATE_D) |

			   PCH_LP_PARTITION_LEVEL_DISABLE);



	/* WADPOClockGatingDisable:hsw */

	I915_WRITE(_TRANSA_CHICKEN1,

		   I915_READ(_TRANSA_CHICKEN1) |

		   TRANS_CHICKEN1_DP0UNIT_GC_DISABLE);

}



static void lpt_suspend_hw(struct drm_device *dev)