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linux: add patch to fix channel mappings

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Signed-off-by: Stephan Raue <stephan@openelec.tv>
This commit is contained in:
Stephan Raue 2013-02-04 00:29:26 +01:00
parent 3368ae19c0
commit ab047bd85a
1 changed files with 66 additions and 0 deletions
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66
packages/linux/patches/3.7.5/linux-990.02-hda-Fix-default-multichannel-HDMI-mapping-regre.patch vendored Normal file
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@ -0,0 +1,66 @@
From b3ed803a1f4012a5067087674b8b1efad22d2bb0 Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sun, 3 Feb 2013 17:28:34 +0200
Subject: [PATCH] ALSA: hda - Fix default multichannel HDMI mapping regression
Commit d45e6889ee69456a4d5b1bbb32252f460cd48fa9 ("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
---
This also affects stable 3.7, but not earlier versions.
sound/pci/hda/patch_hdmi.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 807a2aa..e85959f 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -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;
--
1.7.10