From: "Lu, Han" <han.lu@xxxxxxxxx>
For SKL, only the HDMI codec is in the display power well while the
HD-A controller isn't. So the codec flag 'link_power_control' is
set to request/release the display power via bus link_power ops.
For BXT, the power well design is the same as SKL, so the patch
should be applied to BXT too.
Signed-off-by: Lu, Han <han.lu@xxxxxxxxx>
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 309274b..aa68db6 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -2375,7 +2375,8 @@ static int patch_generic_hdmi(struct hda_codec *codec)
* can cover the codec power request, and so need not set this flag.
* For previous platforms, there is no such power well feature.
*/
- if (is_valleyview_plus(codec) || is_skylake(codec))
+ if (is_valleyview_plus(codec) || is_skylake(codec) ||
+ is_broxton(codec))
codec->core.link_power_control = 1;
if (is_haswell_plus(codec) || is_valleyview_plus(codec)) {
--
2.5.0
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