linux-kernel - [PATCH 1/2] ASoC: WM8962: mark cache_dirty flag after software reset in pm

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Date:	Tue, 20 Oct 2015 11:47:11 +0900
From:	Jiada Wang <jiada_wang@...tor.com>
To:	<lgirdwood@...il.com>, <broonie@...nel.org>, <perex@...ex.cz>,
	<tiwai@...e.com>
CC:	<patches@...nsource.wolfsonmicro.com>,
	<alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>,
	<jiada_wang@...tor.com>
Subject: [PATCH 1/2] ASoC: WM8962: mark cache_dirty flag after software reset in pm_resume

By doing software reset of wm8962 in pm_resume, all registers which
have already been set will be reset to default value without regmap
interface be involved, thus driver need to mark cache_dirty flag,
to let regcache can be updated by regcache_sync().

Signed-off-by: Jiada Wang <jiada_wang@...tor.com>
---
 sound/soc/codecs/wm8962.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 293e47a..a3d7778 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3805,6 +3805,8 @@ static int wm8962_runtime_resume(struct device *dev)
 
 	wm8962_reset(wm8962);
 
+	regcache_mark_dirty(wm8962->regmap);
+
 	/* SYSCLK defaults to on; make sure it is off so we can safely
 	 * write to registers if the device is declocked.
 	 */
-- 
2.4.5

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