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authorWu Fengguang <fengguang.wu@intel.com>2009-11-17 23:38:07 -0500
committerTakashi Iwai <tiwai@suse.de>2009-11-18 01:46:36 -0500
commit81bf31e2d0a6a9f5d83da0a757f8ca03db908162 (patch)
tree62555fb757a1abd72bbe1b82e1327b171d07d2f1 /sound/pci
parent5779191e0efd851fb0d54698c13cb4f5325caca6 (diff)
ALSA: intelhdmi - sticky channel count
Don't change channel count if not necessary. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/hda/patch_intelhdmi.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/sound/pci/hda/patch_intelhdmi.c b/sound/pci/hda/patch_intelhdmi.c
index 8a1cf9d7e5ce..928df59be5d8 100644
--- a/sound/pci/hda/patch_intelhdmi.c
+++ b/sound/pci/hda/patch_intelhdmi.c
@@ -422,24 +422,18 @@ static void hdmi_stop_infoframe_trans(struct hda_codec *codec,
422 AC_DIPXMIT_DISABLE); 422 AC_DIPXMIT_DISABLE);
423} 423}
424 424
425#ifdef CONFIG_SND_DEBUG_VERBOSE
426static int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t nid) 425static int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t nid)
427{ 426{
428 return 1 + snd_hda_codec_read(codec, nid, 0, 427 return 1 + snd_hda_codec_read(codec, nid, 0,
429 AC_VERB_GET_CVT_CHAN_COUNT, 0); 428 AC_VERB_GET_CVT_CHAN_COUNT, 0);
430} 429}
431#endif
432 430
433static void hdmi_set_channel_count(struct hda_codec *codec, 431static void hdmi_set_channel_count(struct hda_codec *codec,
434 hda_nid_t nid, int chs) 432 hda_nid_t nid, int chs)
435{ 433{
436 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
437
438#ifdef CONFIG_SND_DEBUG_VERBOSE
439 if (chs != hdmi_get_channel_count(codec, nid)) 434 if (chs != hdmi_get_channel_count(codec, nid))
440 snd_printd(KERN_INFO "HDMI channel count: expect %d, get %d\n", 435 snd_hda_codec_write(codec, nid, 0,
441 chs, hdmi_get_channel_count(codec, nid)); 436 AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
442#endif
443} 437}
444 438
445static void hdmi_debug_channel_mapping(struct hda_codec *codec, hda_nid_t nid) 439static void hdmi_debug_channel_mapping(struct hda_codec *codec, hda_nid_t nid)