ASoC: Use regmap update bits operation for drivers using regmap
If a driver is using regmap directly ensure that we're coherent with
non-ASoC register updates by using the regmap API directly to do our
read/modify/write cycles. This will bypass the ASoC cache but drivers
using regmap directly should not be using the ASoC cache.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 41c8e45..35a1e63 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1869,23 +1869,28 @@
int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
unsigned int mask, unsigned int value)
{
- int change;
+ bool change;
unsigned int old, new;
int ret;
- ret = snd_soc_read(codec, reg);
- if (ret < 0)
- return ret;
-
- old = ret;
- new = (old & ~mask) | (value & mask);
- change = old != new;
- if (change) {
- ret = snd_soc_write(codec, reg, new);
+ if (codec->using_regmap) {
+ ret = regmap_update_bits_check(codec->control_data, reg,
+ mask, value, &change);
+ } else {
+ ret = snd_soc_read(codec, reg);
if (ret < 0)
return ret;
+
+ old = ret;
+ new = (old & ~mask) | (value & mask);
+ change = old != new;
+ if (change)
+ ret = snd_soc_write(codec, reg, new);
}
+ if (ret < 0)
+ return ret;
+
return change;
}
EXPORT_SYMBOL_GPL(snd_soc_update_bits);