1 files changed, 12 insertions, 0 deletions

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index f29b97b5de8f..2d5b83fa8d24 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -817,6 +817,7 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
         struct hdmi_spec *spec = codec->spec;
         struct hdmi_eld *eld;
         struct hda_pcm_stream *codec_pars;
+        struct snd_pcm_runtime *runtime = substream->runtime;
         unsigned int idx;
 
         for (idx = 0; idx < spec->num_cvts; idx++)
@@ -844,6 +845,14 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
                 hinfo->formats = codec_pars->formats;
                 hinfo->maxbps = codec_pars->maxbps;
         }
+        /* store the updated parameters */
+        runtime->hw.channels_min = hinfo->channels_min;
+        runtime->hw.channels_max = hinfo->channels_max;
+        runtime->hw.formats = hinfo->formats;
+        runtime->hw.rates = hinfo->rates;
+
+        snd_pcm_hw_constraint_step(substream->runtime, 0,
+                                   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
         return 0;
 }
 
@@ -1238,6 +1247,9 @@ static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo,
                 snd_pcm_hw_constraint_list(substream->runtime, 0,
                                 SNDRV_PCM_HW_PARAM_CHANNELS,
                                 hw_constraints_channels);
+        } else {
+                snd_pcm_hw_constraint_step(substream->runtime, 0,
+                                           SNDRV_PCM_HW_PARAM_CHANNELS, 2);
         }
 
         return snd_hda_multi_out_dig_open(codec, &spec->multiout);