linux-kernel - [PATCH 3.16 089/158] ASoC: rt5640: Do not allow regmap to use bulk read-write operations

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Date:	Mon, 15 Sep 2014 12:25:28 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
	Mark Brown <broonie@...aro.org>
Subject: [PATCH 3.16 089/158] ASoC: rt5640: Do not allow regmap to use bulk read-write operations

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

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

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

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: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 sound/soc/codecs/rt5640.c |    1 +
 1 file changed, 1 insertion(+)

--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -2059,6 +2059,7 @@ static struct snd_soc_codec_driver soc_c
 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),


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