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Commit ad35879a authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: hda - Add mute LED support for HP laptop with ALC269 



Some HP laptops have a mute LED that is controlled over the unused
MIC2 VREF pin.  Implement the LED updater like patch_sigmatel.c for this
model.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent c35c9d5d

sound/pci/hda/patch_realtek.c

+38 −0
Original line number Diff line number Diff line
@@ -3467,6 +3467,10 @@ static int alc_init(struct hda_codec *codec) 
	if (spec->init_hook)

		spec->init_hook(codec);













#ifdef CONFIG_SND_HDA_POWER_SAVE













	if (codec->patch_ops.check_power_status)













		codec->patch_ops.check_power_status(codec, 0x01);













#endif















	return 0;















}
























@@ -3827,6 +3831,10 @@ static int alc_resume(struct hda_codec *codec)













	codec->patch_ops.init(codec);















	snd_hda_codec_resume_amp(codec);















	snd_hda_codec_resume_cache(codec);













#ifdef CONFIG_SND_HDA_POWER_SAVE













	if (codec->patch_ops.check_power_status)













		codec->patch_ops.check_power_status(codec, 0x01);













#endif















	return 0;















}















#endif










@@ -13983,6 +13991,34 @@ static struct hda_pcm_stream alc269_44k_pcm_analog_capture = {













	/* NID is set in alc_build_pcms */















};



























#ifdef CONFIG_SND_HDA_POWER_SAVE













static int alc269_mic2_for_mute_led(struct hda_codec *codec)













{













	switch (codec->subsystem_id) {













	case 0x103c1586:













		return 1;













	}













	return 0;













}

























static int alc269_mic2_mute_check_ps(struct hda_codec *codec, hda_nid_t nid)













{













	/* update mute-LED according to the speaker mute state */













	if (nid == 0x01 || nid == 0x14) {













		int pinval;













		if (snd_hda_codec_amp_read(codec, 0x14, 0, HDA_OUTPUT, 0) &













		    HDA_AMP_MUTE)













			pinval = 0x24;













		else













			pinval = 0x20;













		/* mic2 vref pin is used for mute LED control */













		snd_hda_codec_write(codec, 0x19, 0,













				    AC_VERB_SET_PIN_WIDGET_CONTROL, pinval);













	}













	return alc_check_power_status(codec, nid);













}













#endif /* CONFIG_SND_HDA_POWER_SAVE */



























/*















 * BIOS auto configuration















 */










@@ -14330,6 +14366,8 @@ static int patch_alc269(struct hda_codec *codec)













#ifdef CONFIG_SND_HDA_POWER_SAVE















	if (!spec->loopback.amplist)















		spec->loopback.amplist = alc269_loopbacks;













	if (alc269_mic2_for_mute_led(codec))













		codec->patch_ops.check_power_status = alc269_mic2_mute_check_ps;















#endif





























	return 0;