From: Lydia Wang <lydiawang@viatech.com.cn>
Date: Sat, 10 Oct 2009 11:07:55 +0000 (+0800)
Subject: ALSA: HDA VIA: When changing input source, update power state.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a80e6e3c8c21ca50837e2e42fa438a4ff4a9788e;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

ALSA: HDA VIA: When changing input source, update power state.

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Logan Li <loganli@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 26ee1c3a4d16..c5e99944990a 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -549,6 +549,14 @@ static int via_mux_enum_put(struct snd_kcontrol *kcontrol,
 
 	if (!spec->mux_nids[adc_idx])
 		return -EINVAL;
+	/* switch to D0 beofre change index */
+	if (snd_hda_codec_read(codec, spec->mux_nids[adc_idx], 0,
+			       AC_VERB_GET_POWER_STATE, 0x00) != AC_PWRST_D0)
+		snd_hda_codec_write(codec, spec->mux_nids[adc_idx], 0,
+				    AC_VERB_SET_POWER_STATE, AC_PWRST_D0);
+	/* update jack power state */
+	set_jack_power_state(codec);
+
 	return snd_hda_input_mux_put(codec, spec->input_mux, ucontrol,
 				     spec->mux_nids[adc_idx],
 				     &spec->cur_mux[adc_idx]);