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-rw-r--r--drivers/gpu/drm/i915/intel_pm.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index f595b8d..522ff05 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -1325,10 +1325,11 @@ static void valleyview_update_wm(struct drm_device *dev)
(planeb_wm << DSPFW_PLANEB_SHIFT) |
planea_wm);
I915_WRITE(DSPFW2,
- (I915_READ(DSPFW2) & DSPFW_CURSORA_MASK) |
+ (I915_READ(DSPFW2) & ~DSPFW_CURSORA_MASK) |
(cursora_wm << DSPFW_CURSORA_SHIFT));
I915_WRITE(DSPFW3,
- (I915_READ(DSPFW3) | (cursor_sr << DSPFW_CURSOR_SR_SHIFT)));
+ (I915_READ(DSPFW3) & ~DSPFW_CURSOR_SR_MASK) |
+ (cursor_sr << DSPFW_CURSOR_SR_SHIFT));
}
static void g4x_update_wm(struct drm_device *dev)
@@ -1374,11 +1375,11 @@ static void g4x_update_wm(struct drm_device *dev)
(planeb_wm << DSPFW_PLANEB_SHIFT) |
planea_wm);
I915_WRITE(DSPFW2,
- (I915_READ(DSPFW2) & DSPFW_CURSORA_MASK) |
+ (I915_READ(DSPFW2) & ~DSPFW_CURSORA_MASK) |
(cursora_wm << DSPFW_CURSORA_SHIFT));
/* HPLL off in SR has some issues on G4x... disable it */
I915_WRITE(DSPFW3,
- (I915_READ(DSPFW3) & ~DSPFW_HPLL_SR_EN) |
+ (I915_READ(DSPFW3) & ~(DSPFW_HPLL_SR_EN | DSPFW_CURSOR_SR_MASK)) |
(cursor_sr << DSPFW_CURSOR_SR_SHIFT));
}