ALSA: hda: Intel: enable automatic runtime pm for HDMI codecs by default
Enable runtime PM of the HDMI audio codec on the latest Intel platforms.
So the HD-A controller or HDMI codec can suspend when idle timeout by
default and release the GFX power well.
The patch influences HSW/BDW/BYT/BSW/SKL. Eariler platforms and third
party analog codecs will not be influenced.
Signed-off-by: Lu, Han <han.lu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 6c57258..12837ab 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -251,6 +251,7 @@
unsigned int dp_mst:1; /* support DP1.2 Multi-stream transport */
unsigned int dump_coef:1; /* dump processing coefs in codec proc file */
unsigned int power_save_node:1; /* advanced PM for each widget */
+ unsigned int auto_runtime_pm:1; /* enable automatic codec runtime pm */
#ifdef CONFIG_PM
unsigned long power_on_acct;
unsigned long power_off_acct;