[Intel-gfx] [PATCH 2/3] drm/i915: Use cached cdclk value in i915_audio_component_get_cdclk_freq()

[ville.syrjala at linux.intel.com]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

No point in reading the cdclk out from the hardware every single time
since we have it cached already. Just return the cached value to the
audio driver.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_audio.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index 56ba8765816e..1063108a9bab 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -624,17 +624,11 @@ static void i915_audio_component_codec_wake_override(struct device *dev,
 static int i915_audio_component_get_cdclk_freq(struct device *dev)
 {
 	struct drm_i915_private *dev_priv = dev_to_i915(dev);
-	int ret;
 
 	if (WARN_ON_ONCE(!HAS_DDI(dev_priv)))
 		return -ENODEV;
 
-	intel_display_power_get(dev_priv, POWER_DOMAIN_AUDIO);
-	ret = dev_priv->display.get_display_clock_speed(dev_priv->dev);
-
-	intel_display_power_put(dev_priv, POWER_DOMAIN_AUDIO);
-
-	return ret;
+	return dev_priv->cdclk_freq;
 }
 
 static int i915_audio_component_sync_audio_rate(struct device *dev,
-- 
2.7.4