ASoC: core: Fix check before defaulting to regmap
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>
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index f219b2f..f81c597 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1096,7 +1096,7 @@
}
/* 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)