[alsa-devel] [PATCH] ALSA: hda - program ICT bits to support HBR audio

Vinod Koul vinod.koul at intel.com
Tue Sep 19 18:37:18 CEST 2017


On Tue, Sep 19, 2017 at 08:30:01PM +0530, Subhransu S. Prusty wrote:
> From: Sriram Periyasamy <sriramx.periyasamy at intel.com>
> 
> On recent Intel platforms (Haswell, Broadwell, Skylake, ApolloLake,
> KabyLake, ...), the IEC Coding Type (ICT) bitfield in the Digital
> Converter Control #3 needs to be set explicitly for HDMI/DisplayPort
> High Bit Rate (HBR) audio playback to work. This was not required in
> earlier platforms when HBR was first introduced. The ICT bits are
> defined in Section 7.3.3.9 of the HDaudio 1.0a specification.
> 
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98797
> 
> Signed-off-by: Sriram Periyasamy <sriramx.periyasamy at intel.com>
> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
> Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty at intel.com>

Acked-By: Vinod Koul <vinod.koul at intel.com>

-- 
~Vinod


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