linux-kernel - [PATCH V2] ASoC: cs42xx8: Add regcache mask dirty

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Date:   Fri, 17 May 2019 03:22:48 +0000
From:   "S.j. Wang" <shengjiu.wang@....com>
To:     "brian.austin@...rus.com" <brian.austin@...rus.com>,
        "Paul.Handrigan@...rus.com" <Paul.Handrigan@...rus.com>,
        "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "perex@...ex.cz" <perex@...ex.cz>,
        "tiwai@...e.com" <tiwai@...e.com>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH V2] ASoC: cs42xx8: Add regcache mask dirty

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")
Cc: <stable@...r.kernel.org>
Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
Changs in V2
- Don't split Fixes tag.

 sound/soc/codecs/cs42xx8.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/cs42xx8.c b/sound/soc/codecs/cs42xx8.c
index ebb9e0cf8364..28a4ac36c4f8 100644
--- a/sound/soc/codecs/cs42xx8.c
+++ b/sound/soc/codecs/cs42xx8.c
@@ -558,6 +558,7 @@ static int cs42xx8_runtime_resume(struct device *dev)
 	msleep(5);
 
 	regcache_cache_only(cs42xx8->regmap, false);
+	regcache_mark_dirty(cs42xx8->regmap);
 
 	ret = regcache_sync(cs42xx8->regmap);
 	if (ret) {
-- 
2.21.0