From: Ville Syrjälä <ville.syrj...@linux.intel.com>

Misplaced parens cause us to totally clobber the CHICKEN_PIPESL_1
registers with 0xffffffff. Move the parens to the correct place
to avoid this.

In particular this caused bit 30 of said registers to be set, which
caused the sprite CSC to produce incorrect results.

Cc: sta...@vger.kernel.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=72220
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 6436b70..245d3ae 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4832,8 +4832,8 @@ static void gen8_init_clock_gating(struct drm_device *dev)
        /* WaPsrDPRSUnmaskVBlankInSRD:bdw */
        for_each_pipe(i) {
                I915_WRITE(CHICKEN_PIPESL_1(i),
-                          I915_READ(CHICKEN_PIPESL_1(i) |
-                                    DPRS_MASK_VBLANK_SRD));
+                          I915_READ(CHICKEN_PIPESL_1(i)) |
+                          DPRS_MASK_VBLANK_SRD);
        }
 
        /* Use Force Non-Coherent whenever executing a 3D context. This is a
-- 
1.8.3.2

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