ALSA: x86: Set CA bits for DisplayPort too

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>

1 files 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++)