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Commit 140547ef authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: hda/realtek - Improve the signel-connection check 



When the connections from the pin selector contain only two
widgets, a route to DAC and the aa-mixer, it's certainly a
single connection.  In such a case, get_dac_if_single() should
return the connected DAC, too.

This will improve the detection of the individual DAC
assignment for each pin.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 00bc0ce9

sound/pci/hda/patch_realtek.c

+5 −1
Original line number Diff line number Diff line
@@ -2972,8 +2972,12 @@ static bool alc_auto_is_dac_reachable(struct hda_codec *codec, 


static hda_nid_t get_dac_if_single(struct hda_codec *codec, hda_nid_t pin)

{

	struct alc_spec *spec = codec->spec;

	hda_nid_t sel = alc_go_down_to_selector(codec, pin);

	if (snd_hda_get_conn_list(codec, sel, NULL) == 1)

	hda_nid_t srcs[5];

	int num = snd_hda_get_connections(codec, sel, srcs,

					  ARRAY_SIZE(srcs));

	if (num == 1 || (num == 2 && srcs[1] == spec->mixer_nid))

		return alc_auto_look_for_dac(codec, pin);

	return 0;

}