[alsa-devel] [PATCH 11/30] ALSA: HDA VIA: When changing input source, update power state.

[LoganLi at viatech.com.cn]

From: Lydia Wang <lydiawang at viatech.com.cn>
Subject: ALSA: HDA VIA: When changing input source, update power state.

Signed-off-by: Lydia Wang <lydiawang at viatech.com.cn>
Signed-off-by: Logan Li <loganli at viatech.com.cn>

---
 pci/hda/patch_via.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/pci/hda/patch_via.c
+++ b/pci/hda/patch_via.c
@@ -549,6 +549,14 @@
 
 	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]);