linux-kernel - [PATCH 3.16 04/87] ASoC: cs42xx8: Add regcache mask dirty

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Message-ID: <lsq.1570043211.446424873@decadent.org.uk>
Date:   Wed, 02 Oct 2019 20:06:51 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "Mark Brown" <broonie@...nel.org>,
        "S.j. Wang" <shengjiu.wang@....com>
Subject: [PATCH 3.16 04/87] ASoC: cs42xx8: Add regcache mask dirty

3.16.75-rc1 review patch.  If anyone has any objections, please let me know.

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

From: "S.j. Wang" <shengjiu.wang@....com>

commit ad6eecbfc01c987e0253371f274c3872042e4350 upstream.

Add regcache_mark_dirty before regcache_sync for power
of codec may be lost at suspend, then all the register
need to be reconfigured.

Fixes: 0c516b4ff85c ("ASoC: cs42xx8: Add codec driver
support for CS42448/CS42888")
Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 sound/soc/codecs/cs42xx8.c | 1 +
 1 file changed, 1 insertion(+)

--- a/sound/soc/codecs/cs42xx8.c
+++ b/sound/soc/codecs/cs42xx8.c
@@ -557,6 +557,7 @@ static int cs42xx8_runtime_resume(struct
 	msleep(5);
 
 	regcache_cache_only(cs42xx8->regmap, false);
+	regcache_mark_dirty(cs42xx8->regmap);
 
 	ret = regcache_sync(cs42xx8->regmap);
 	if (ret) {