linux-kernel - [PATCH 3.13 111/149] ASoC: 88pm860: Fix IO setup

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Date:	Thu, 20 Mar 2014 17:04:34 -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, Lars-Peter Clausen <lars@...afoo.de>,
	Mark Brown <broonie@...aro.org>
Subject: [PATCH 3.13 111/149] ASoC: 88pm860: Fix IO setup

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

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

From: Lars-Peter Clausen <lars@...afoo.de>

commit 8eeb5c15131d7b5061c10423eda3ae4c68db4eaf upstream.

The 88pm860 is a MFD device and the CODEC driver is using the regmap struct of
the parent device, hence automatic IO setup will not work and we need to
manually call snd_soc_codec_set_cache_io(). The issue was introduced in commit
f9ded3b2e7 ("ASoC: 88pm860x: Use regmap for I/O").

Fixes: f9ded3b2e7 ("ASoC: 88pm860x: Use regmap for I/O").
Signed-off-by: Lars-Peter Clausen <lars@...afoo.de>
Signed-off-by: Mark Brown <broonie@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 sound/soc/codecs/88pm860x-codec.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/sound/soc/codecs/88pm860x-codec.c
+++ b/sound/soc/codecs/88pm860x-codec.c
@@ -1328,6 +1328,9 @@ static int pm860x_probe(struct snd_soc_c
 	pm860x->codec = codec;

 	codec->control_data = pm860x->regmap;
+	ret = snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
+	if (ret)
+		return ret;

 	for (i = 0; i < 4; i++) {
 		ret = request_threaded_irq(pm860x->irq[i], NULL,

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