diff options
| author | Mengdong Lin <mengdong.lin@intel.com> | 2013-11-04 01:13:13 -0500 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-11-04 14:22:08 +0100 |
| commit | 300016b960661b4df63690177b22ba5426ff5706 (patch) | |
| tree | dfc2089017005ac8d3ac3e4623dc9e4fb976a355 /sound | |
| parent | 611885bc963a2fa6fbd6141d149abbcce4dd8923 (diff) | |
ALSA: hda - rename function not_share_unassigned_cvt()
The function name not_share_unassigned_cvt() is opposite to what it does.
This patch renames it to intel_not_share_assigned_cvt(), and addes comments
to explain why some Intel display codecs need this workaround.
Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/hda/patch_hdmi.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index c3e3537b3196..e22323f50424 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1328,7 +1328,16 @@ static int hdmi_choose_cvt(struct hda_codec *codec, return 0; } -static void not_share_unassigned_cvt(struct hda_codec *codec, +/* Intel HDMI workaround to fix audio routing issue: + * For some Intel display codecs, pins share the same connection list. + * So a conveter can be selected by multiple pins and playback on any of these + * pins will generate sound on the external display, because audio flows from + * the same converter to the display pipeline. Also muting one pin may make + * other pins have no sound output. + * So this function assures that an assigned converter for a pin is not selected + * by any other pins. + */ +static void intel_not_share_assigned_cvt(struct hda_codec *codec, hda_nid_t pin_nid, int mux_idx) { struct hdmi_spec *spec = codec->spec; @@ -1408,7 +1417,7 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo, /* configure unused pins to choose other converters */ if (is_haswell(codec) || is_valleyview(codec)) - not_share_unassigned_cvt(codec, per_pin->pin_nid, mux_idx); + intel_not_share_assigned_cvt(codec, per_pin->pin_nid, mux_idx); snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid); |