From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> 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: stable@xxxxxxxxxxxxxxx Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=72220 Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html