It is also applicable for B0.
Signed-off-by: Arun Siluvery <arun.siluvery@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_pm.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 9151a2b..be39f7ad 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -121,8 +121,10 @@ static void bxt_init_clock_gating(struct drm_device *dev)
gen9_init_clock_gating(dev);
/* WaDisableSDEUnitClockGating:bxt */
- I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) |
- GEN8_SDEUNIT_CLOCK_GATE_DISABLE);
+ if (INTEL_REVID(dev) >= BXT_REVID_A0) {
+ I915_WRITE(GEN8_UCGCTL6, (I915_READ(GEN8_UCGCTL6) |
+ GEN8_SDEUNIT_CLOCK_GATE_DISABLE));
+ }
/* WaSetHDCunitClckGatingDisable:bxt */
/* WaSetHdcUnitClockGatingDisableInUcgctl6:bxt */
--
1.9.1
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