From 2377c3c388815cd0a33309a6b6bb713600258a3e Mon Sep 17 00:00:00 2001 From: "Lu, Han" Date: Tue, 9 Jun 2015 16:50:38 +0800 Subject: 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 Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_hdmi.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'sound/pci/hda/patch_hdmi.c') diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 407978b6db66..f8527342a150 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -2356,6 +2356,10 @@ static int patch_generic_hdmi(struct hda_codec *codec) codec->dp_mst = true; } + /* Enable runtime pm for HDMI audio codec of HSW/BDW/SKL/BYT/BSW */ + if (is_haswell_plus(codec) || is_valleyview_plus(codec)) + codec->auto_runtime_pm = 1; + generic_hdmi_init_per_pins(codec); init_channel_allocations(); -- cgit v1.2.3