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: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 1694f60..9a361c2 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3467,6 +3467,10 @@
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 @@
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 @@
/* 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 @@
#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;