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From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Liam Girdwood <lrg@ti.com>
Cc: alsa-devel@alsa-project.org, patches@opensource.wolfsonmicro.com,
	Mark Brown <broonie@opensource.wolfsonmicro.com>
Subject: [PATCH] ASoC: wm8962: Redo early init of the part on resume
Date: Wed, 11 Jul 2012 19:10:07 +0100	[thread overview]
Message-ID: <1342030207-5358-1-git-send-email-broonie@opensource.wolfsonmicro.com> (raw)

Ensure robust startup of the part by going through the reset procedure
prior to resyncing the full register cache, avoiding potential intermittent
faults in some designs.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 sound/soc/codecs/wm8962.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 5781581..6999f74 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3727,6 +3727,9 @@ static int wm8962_runtime_resume(struct device *dev)
 	}
 
 	regcache_cache_only(wm8962->regmap, false);
+
+	wm8962_reset(wm8962);
+
 	regcache_sync(wm8962->regmap);
 
 	regmap_update_bits(wm8962->regmap, WM8962_ANTI_POP,
-- 
1.7.10

                 reply	other threads:[~2012-07-11 18:10 UTC|newest]

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