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Commit cace16f1 authored by Matthew Ranostay's avatar Matthew Ranostay Committed by Mercurial server
Browse files

[ALSA] hda: fix Mic in as output 



Some laptop has an internal analog microphone that is 'fixed'.
This patch prevents creating a 'Mic In as Output' switch for
ports that can't be outputs.

Signed-off-by: default avatarMatthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
parent 493b4acb

sound/pci/hda/patch_sigmatel.c

+16 −8
Original line number Diff line number Diff line
@@ -2283,7 +2283,14 @@ static int stac92xx_auto_create_multi_out_ctls(struct hda_codec *codec, 
	}



	if (spec->mic_switch) {

		unsigned int def_conf;

		nid = cfg->input_pins[AUTO_PIN_MIC];

		def_conf = snd_hda_codec_read(codec, nid, 0,

						AC_VERB_GET_CONFIG_DEFAULT, 0);



		/* some laptops have an internal analog microphone

		 * which can't be used as a output */

		if (get_defcfg_connect(def_conf) != AC_JACK_PORT_FIXED) {

			pincap = snd_hda_param_read(codec, nid,

							AC_PAR_PIN_CAP);

			if (pincap & AC_PINCAP_OUT) {
@@ -2294,6 +2301,7 @@ static int stac92xx_auto_create_multi_out_ctls(struct hda_codec *codec, 
					return err;

			}

		}

	}



	return 0;

}