diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index efe80ed5fd4d..fd59016191ff 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -2701,6 +2701,8 @@ static void skl_display_core_uninit(struct drm_i915_private *dev_priv) intel_power_well_disable(dev_priv, well); mutex_unlock(&power_domains->lock); + + usleep_range(10, 30); /* 10 us delay per Bspec */ } void bxt_display_core_init(struct drm_i915_private *dev_priv, @@ -2758,6 +2760,8 @@ void bxt_display_core_uninit(struct drm_i915_private *dev_priv) intel_power_well_disable(dev_priv, well); mutex_unlock(&power_domains->lock); + + usleep_range(10, 30); /* 10 us delay per Bspec */ } #define CNL_PROCMON_IDX(val) \ @@ -2859,6 +2863,8 @@ static void cnl_display_core_uninit(struct drm_i915_private *dev_priv) intel_power_well_disable(dev_priv, well); mutex_unlock(&power_domains->lock); + usleep_range(10, 30); /* 10 us delay per Bspec */ + /* 5. Disable Comp */ val = I915_READ(CHICKEN_MISC_2); val |= COMP_PWR_DOWN;