diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index 763730febfde6dfb7d3853fb4fa8cf2395a47f0e..29988d8c0cf626a088fbc65d3c6809fae3f36f7a 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -399,36 +399,26 @@ static void gen9_wait_for_power_well_disable(struct drm_i915_private *dev_priv, static void hsw_set_power_well(struct drm_i915_private *dev_priv, struct i915_power_well *power_well, bool enable) { - bool is_enabled, enable_requested; uint32_t tmp; tmp = I915_READ(HSW_PWR_WELL_DRIVER); - is_enabled = tmp & HSW_PWR_WELL_STATE_ENABLED; - enable_requested = tmp & HSW_PWR_WELL_ENABLE_REQUEST; if (enable) { - if (!enable_requested) - I915_WRITE(HSW_PWR_WELL_DRIVER, - HSW_PWR_WELL_ENABLE_REQUEST); - - if (!is_enabled) { - DRM_DEBUG_KMS("Enabling power well\n"); - if (intel_wait_for_register(dev_priv, - HSW_PWR_WELL_DRIVER, - HSW_PWR_WELL_STATE_ENABLED, - HSW_PWR_WELL_STATE_ENABLED, - 20)) - DRM_ERROR("Timeout enabling power well\n"); - hsw_power_well_post_enable(dev_priv); - } + I915_WRITE(HSW_PWR_WELL_DRIVER, HSW_PWR_WELL_ENABLE_REQUEST); + DRM_DEBUG_KMS("Enabling power well\n"); + if (intel_wait_for_register(dev_priv, + HSW_PWR_WELL_DRIVER, + HSW_PWR_WELL_STATE_ENABLED, + HSW_PWR_WELL_STATE_ENABLED, + 20)) + DRM_ERROR("Timeout enabling power well\n"); + hsw_power_well_post_enable(dev_priv); } else { - if (enable_requested) { - hsw_power_well_pre_disable(dev_priv); - I915_WRITE(HSW_PWR_WELL_DRIVER, 0); - POSTING_READ(HSW_PWR_WELL_DRIVER); - DRM_DEBUG_KMS("Requesting to disable the power well\n"); - } + hsw_power_well_pre_disable(dev_priv); + I915_WRITE(HSW_PWR_WELL_DRIVER, 0); + POSTING_READ(HSW_PWR_WELL_DRIVER); + DRM_DEBUG_KMS("Requesting to disable the power well\n"); } }