From: Ville Syrjälä Date: Tue, 26 Apr 2016 16:46:33 +0000 (+0300) Subject: drm/i915: Use cached cdclk value in i915_audio_component_get_cdclk_freq() X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1033f92e15e3f4d5b3a374d254711d66b352b731;p=linux-beck.git drm/i915: Use cached cdclk value in i915_audio_component_get_cdclk_freq() 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 Link: http://patchwork.freedesktop.org/patch/msgid/1461689194-6079-3-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Mika Kahola --- 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,