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ALSA: hda - A new flag to enforce prefix to each pin

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This is a preliminary patch for a smooth multi-codec support, and it
introduces a new flag, force_pin_prefix, to struct hda_codec.
This flag is used to force to add the pin location prefix to each
input pin.  For example, when there is only one microphone pin,
usually the auto-parser assigns the string "Mic".  With this flag on,
it'll be like "Front Mic".  Also, the creation of "Master" or "PCM"
playback volume for a single pin is suppressed, too.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=195305
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
2017-04-10 17:12:33 +02:00
parent ff21b250e9
commit 9f3dadb156
3 changed files with 4 additions and 0 deletions
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1
sound/pci/hda/hda_auto_parser.c
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@@ -580,6 +580,7 @@ const char *hda_get_autocfg_input_label(struct hda_codec *codec,
has_multiple_pins = 1;
if (has_multiple_pins && type == AUTO_PIN_MIC)
has_multiple_pins &= check_mic_location_need(codec, cfg, input);
has_multiple_pins |= codec->force_pin_prefix;
return hda_get_input_pin_label(codec, &cfg->inputs[input],
cfg->inputs[input].pin,
has_multiple_pins);