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ASoC: core: Fix check before defaulting to regmap

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Check if the chip has provided a write operation (which is mandatory for
I/O) rather than looking for control data as some of the MFDs use a global
for this. Also skip the attempt if there's no regmap available by device
in case things get confused by the attempt to default.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
This commit is contained in:
Mark Brown 2012-08-01 20:05:47 +01:00
parent 9d40e5582c
commit 98d3088e53
1 changed files with 1 additions and 1 deletions
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2
sound/soc/soc-core.c
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@ -1096,7 +1096,7 @@ static int soc_probe_codec(struct snd_soc_card *card,
}
/* If the driver didn't set I/O up try regmap */
if (!codec->control_data)
if (!codec->write && dev_get_regmap(codec->dev, NULL))
snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
if (driver->controls)