diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 0ad04132ca8d..a0dba005e997 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -5908,6 +5908,7 @@ #define ICL_DELAY_PMRSP REG_BIT(22) #define DISABLE_FLR_SRC REG_BIT(15) #define MASK_WAKEMEM REG_BIT(13) +#define DDI_CLOCK_REG_ACCESS REG_BIT(7) #define GEN11_CHICKEN_DCPR_2 _MMIO(0x46434) #define DCPR_MASK_MAXLATENCY_MEMUP_CLR REG_BIT(27) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 8824f269e5f5..594ab59e4991 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -7470,6 +7470,9 @@ static void adlp_init_clock_gating(struct drm_i915_private *dev_priv) /* Wa_22011091694:adlp */ intel_de_rmw(dev_priv, GEN9_CLKGATE_DIS_5, 0, DPCE_GATING_DIS); + + /* Bspec/49189 Initialize Sequence */ + intel_de_rmw(dev_priv, GEN8_CHICKEN_DCPR_1, DDI_CLOCK_REG_ACCESS, 0); } static void dg1_init_clock_gating(struct drm_i915_private *dev_priv) |