linux-kernel - [PATCH 3.13 082/103] ASoC: rt5640: Do not allow regmap to use bulk read-write operations

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Date:	Tue, 30 Sep 2014 14:31:27 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
	Mark Brown <broonie@...aro.org>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.13 082/103] ASoC: rt5640: Do not allow regmap to use bulk read-write operations

3.13.11.8 -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: Kamal Mostafa <kamal@...onical.com>
---
 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 8869249..5cb515b 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -2071,6 +2071,7 @@ 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),
-- 
1.9.1

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