At Fri, 27 Mar 2015 15:10:04 +0800, libin.yang@intel.com wrote:
From: Libin Yang <libin.yang@intel.com>
HDMI/DP codec on SKL is in the power well. The power well must be turned on before probing the HDMI/DP codec.
Signed-off-by: Libin Yang <libin.yang@intel.com>
So, was the previous question clarified? This certainly sucks. It means that the powerwell is on even you don't use the HDMI/DP at all. If this is intended as a temporarily workaround, it should be mentioned so. Please give more comments and backgrounds. thanks, Takashi
--- sound/pci/hda/hda_intel.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 15a8299..4744a96 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -298,7 +298,8 @@ enum { AZX_DCAPS_SNOOP_TYPE(SCH))
#define AZX_DCAPS_INTEL_SKYLAKE \ - (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG) + (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG |\ + AZX_DCAPS_I915_POWERWELL)
/* quirks for ATI SB / AMD Hudson */ #define AZX_DCAPS_PRESET_ATI_SB \ -- 1.9.1