linux-kernel - [15/89] ASoC: Dont go through cache when applying WM5100 rev A updates

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Message-Id: <20120201210045.211143182@clark.kroah.org>
Date:	Wed, 01 Feb 2012 12:59:39 -0800
From:	Greg KH <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [15/89] ASoC: Dont go through cache when applying WM5100 rev A updates

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mark Brown <broonie@...nsource.wolfsonmicro.com>

commit 495174a8ffbaa0d15153d855cf206cdc46d51cf4 upstream.

These are all to either uncached registers or fixes to register defaults,
in the former case the cache won't do anything and in the latter case
we're fixing things so the cache sync will do the right thing.

Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 sound/soc/codecs/wm5100.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/sound/soc/codecs/wm5100.c
+++ b/sound/soc/codecs/wm5100.c
@@ -1379,6 +1379,7 @@ static int wm5100_set_bias_level(struct
 
 			switch (wm5100->rev) {
 			case 0:
+				regcache_cache_bypass(wm5100->regmap, true);
 				snd_soc_write(codec, 0x11, 0x3);
 				snd_soc_write(codec, 0x203, 0xc);
 				snd_soc_write(codec, 0x206, 0);
@@ -1394,6 +1395,7 @@ static int wm5100_set_bias_level(struct
 					snd_soc_write(codec,
 						      wm5100_reva_patches[i].reg,
 						      wm5100_reva_patches[i].val);
+				regcache_cache_bypass(wm5100->regmap, false);
 				break;
 			default:
 				break;


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