From: Marc Boucher <marc@linuxant.com>
Date: Tue, 22 Jan 2008 14:23:30 +0000 (+0100)
Subject: [ALSA] hda-codec - Add a delay after power state change
X-Git-Tag: v2.6.25-rc1~1127^2~56
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d2595d86e5;p=karo-tx-linux.git

[ALSA] hda-codec - Add a delay after power state change

Added a delay after the power state change as a partial workaround
for 'hda_intel: azx_get_response timeout' problem on Cxt codecs.

Signed-off-by: Marc Boucher <marc@linuxant.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index b5e69b10cb83..6b93f4511166 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1685,6 +1685,7 @@ static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
 
 	snd_hda_codec_write(codec, fg, 0, AC_VERB_SET_POWER_STATE,
 			    power_state);
+	msleep(10); /* partial workaround for "azx_get_response timeout" */
 
 	nid = codec->start_nid;
 	for (i = 0; i < codec->num_nodes; i++, nid++) {