This is a guess work. Usually the DP audio info frame is just 8-bit shifted from HDMI AI, so let's try to put CA in DIP frame 2 [24-31].
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/x86/intel_hdmi_audio.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c index f49520117dd6..24a18b88c927 100644 --- a/sound/x86/intel_hdmi_audio.c +++ b/sound/x86/intel_hdmi_audio.c @@ -626,20 +626,20 @@ static void snd_intelhad_prog_dip(struct snd_pcm_substream *substream, u8 checksum = 0; u32 info_frame; int channels; + int ca;
channels = substream->runtime->channels;
had_write_register(intelhaddata, AUD_CNTL_ST, ctrl_state.regval);
+ ca = snd_intelhad_channel_allocation(intelhaddata, channels); if (intelhaddata->dp_output) { info_frame = DP_INFO_FRAME_WORD1; - frame2.regval = 1; + frame2.regval = (substream->runtime->channels - 1) | (ca << 24); } else { info_frame = HDMI_INFO_FRAME_WORD1; frame2.regx.chnl_cnt = substream->runtime->channels - 1; - - frame3.regx.chnl_alloc = snd_intelhad_channel_allocation( - intelhaddata, channels); + frame3.regx.chnl_alloc = ca;
/* Calculte the byte wide checksum for all valid DIP words */ for (i = 0; i < BYTES_PER_WORD; i++)