linux-kernel - [PATCH 3.12 082/142] ASoC: rt5640: Do not allow regmap to use bulk read-write operations

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Date:	Fri, 26 Sep 2014 11:44:53 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
	Mark Brown <broonie@...aro.org>, Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 082/142] ASoC: rt5640: Do not allow regmap to use bulk read-write operations

From: Jarkko Nikula <jarkko.nikula@...ux.intel.com>

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

===============

commit f4821e8e8e957fe4c601a49b9a97b7399d5f7ab1 upstream.

Debugging showed Realtek RT5642 doesn't support autoincrementing writes so
driver should set the use_single_rw flag for regmap.

Signed-off-by: Jarkko Nikula <jarkko.nikula@...ux.intel.com>
Signed-off-by: Mark Brown <broonie@...aro.org>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 sound/soc/codecs/rt5640.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
index c26a8f814b18..aa5253a3548e 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -2061,6 +2061,7 @@ static struct snd_soc_codec_driver soc_codec_dev_rt5640 = {
 static const struct regmap_config rt5640_regmap = {
 	.reg_bits = 8,
 	.val_bits = 16,
+	.use_single_rw = true,
 
 	.max_register = RT5640_VENDOR_ID2 + 1 + (ARRAY_SIZE(rt5640_ranges) *
 					       RT5640_PR_SPACING),
-- 
2.1.0

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