[Intel-gfx] [PATCH 2/5] drm/i915: Drop reg_write from the PSR mask

[Dhinakaran Pandiyan]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

v2: from DK
 * Rebased on drm-tip
 * Explananation in commit message.

REG_WRITE is necessary for HW to exit PSR when plane/pipe registers are
written to.

Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
---
 drivers/gpu/drm/i915/intel_psr.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 27dfd507a4f7..317cb4a12693 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -613,8 +613,7 @@ static void hsw_psr_enable_source(struct intel_dp *intel_dp,
 		I915_WRITE(EDP_PSR_DEBUG,
 			   EDP_PSR_DEBUG_MASK_MEMUP |
 			   EDP_PSR_DEBUG_MASK_HPD |
-			   EDP_PSR_DEBUG_MASK_LPSP |
-			   EDP_PSR_DEBUG_MASK_REG_WRITE);
+			   EDP_PSR_DEBUG_MASK_LPSP);
 	}
 }
 
-- 
2.14.1