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authorAnssi Hannula <anssi.hannula@iki.fi>2013-10-07 19:24:52 +0300
committerTakashi Iwai <tiwai@suse.de>2013-10-08 09:27:26 +0200
commit39edac70e9aedf451fccaa851b273ace9fcca0bd (patch)
treebc900c4a1265e235fc4220451550bc6588273891 /sound
parent338cae565c53755de9f87d6a801517940d2d56f7 (diff)
downloadlinux-linaro-stable-39edac70e9aedf451fccaa851b273ace9fcca0bd.tar.gz
ALSA: hda - hdmi: Fix channel map switch not taking effect
Currently hdmi_setup_audio_infoframe() reprograms the HDA channel mapping only when the infoframe is not up-to-date or the non-PCM flag has changed. However, when just the channel map has been changed, the infoframe may still be up-to-date and non-PCM flag may not have changed, so the new channel map is not actually programmed into the HDA codec. Notably, this failing case is also always triggered when the device is already in a prepared state and a new channel map is configured while changing only the channel positions (for example, plain "speaker-test -c2 -m FR,FL"). Fix that by always programming the channel map in hdmi_setup_audio_infoframe(). Tested on Intel HDMI. Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/patch_hdmi.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 7ea0245fc6bd..50173d412ac5 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -937,6 +937,14 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
}
/*
+ * always configure channel mapping, it may have been changed by the
+ * user in the meantime
+ */
+ hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
+ channels, per_pin->chmap,
+ per_pin->chmap_set);
+
+ /*
* sizeof(ai) is used instead of sizeof(*hdmi_ai) or
* sizeof(*dp_ai) to avoid partial match/update problems when
* the user switches between HDMI/DP monitors.
@@ -947,20 +955,10 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
"pin=%d channels=%d\n",
pin_nid,
channels);
- hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
- channels, per_pin->chmap,
- per_pin->chmap_set);
hdmi_stop_infoframe_trans(codec, pin_nid);
hdmi_fill_audio_infoframe(codec, pin_nid,
ai.bytes, sizeof(ai));
hdmi_start_infoframe_trans(codec, pin_nid);
- } else {
- /* For non-pcm audio switch, setup new channel mapping
- * accordingly */
- if (per_pin->non_pcm != non_pcm)
- hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
- channels, per_pin->chmap,
- per_pin->chmap_set);
}
per_pin->non_pcm = non_pcm;