From 2a22d3f81283253ab9dae9244f3ca58a5ac66b36 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 10 Aug 2009 18:54:38 +0200
Subject: [PATCH] ALSA: hda - Use only one capture stream for auto-mic

When the auto-mic feature is enabled, we should support only one
capture stream.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 678c2d7b7f98..7ecf929b97a5 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4683,8 +4683,10 @@ static void set_capture_mixer(struct alc_spec *spec)
 	};
 	if (spec->num_adc_nids > 0 && spec->num_adc_nids <= 3) {
 		int mux;
-		if (spec->input_mux && spec->input_mux->num_items > 1 &&
-		    !spec->auto_mic)
+		if (spec->auto_mic) {
+			mux = 0;
+			spec->num_adc_nids = 1; /* support only one ADC */
+		} else if (spec->input_mux && spec->input_mux->num_items > 1)
 			mux = 1;
 		else
 			mux = 0;