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ALSA: hda - Fix default multichannel HDMI mapping regression 

Commit d45e6889ee ("ALSA: hda - Provide
the proper channel mapping for generic HDMI driver") added support for
custom channel maps in the HDA HDMI driver. Due to a mistake in an
'if' condition the custom map is always used even when no such map has
been set. This causes incorrect channel mapping for multichannel audio
by default.

Pass per_pin->chmap_set to hdmi_setup_channel_mapping() as a parameter
so that it can use it for detecting if a custom map has been set instead
of checking if map is NULL (which is never the case).

Reported-by: Staffan Lindberg <pike@xbmc.org>
Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Cc: stable@vger.kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Anssi Hannula 2013-02-03 17:55:45 +02:00 committed by Takashi Iwai
parent 8058e14259
commit 20608731f4
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sound/pci/hda/patch_hdmi.c
View File

@ -714,9 +714,10 @@ static void hdmi_setup_fake_chmap(unsigned char *map, int ca)
static void hdmi_setup_channel_mapping(struct hda_codec *codec,
hda_nid_t pin_nid, bool non_pcm, int ca,
int channels, unsigned char *map)
int channels, unsigned char *map,
bool chmap_set)
{
if (!non_pcm && map) {
if (!non_pcm && chmap_set) {
hdmi_manual_setup_channel_mapping(codec, pin_nid,
channels, map);
} else {
@ -905,7 +906,8 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, int pin_idx,
pin_nid,
channels);
hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
channels, per_pin->chmap);
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));
@ -915,7 +917,8 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, int pin_idx,
* accordingly */
if (per_pin->non_pcm != non_pcm)
hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
channels, per_pin->chmap);
channels, per_pin->chmap,
per_pin->chmap_set);
}
per_pin->non_pcm = non_pcm;