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ASoC: add snd_soc_component_read32 

Current codec drivers are using snd_soc_read(). It will be replaced
into snd_soc_component_read(), but these 2 are using different style.
For example, it will be

	- val = snd_soc_read(xxx, reg);
	+ ret = snd_soc_component_read(xxx, reg, &val);
	+ if (ret < 0) {
	+	...
	+ }

To more smooth replace, let's add snd_soc_component_read32
which is copied from snd_soc_read()

	- val = snd_soc_read(xxx, reg);
	+ val = snd_soc_component_read32(xxx, reg);

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2017-11-06 01:48:19 +00:00 committed by Mark Brown
parent 69941bab7c
commit 738b49efe6
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2 changed files with 16 additions and 0 deletions
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2
include/sound/soc.h
View File

@ -1498,6 +1498,8 @@ static inline int snd_soc_cache_sync(struct snd_soc_codec *codec)
/* component IO */
int snd_soc_component_read(struct snd_soc_component *component,
unsigned int reg, unsigned int *val);
unsigned int snd_soc_component_read32(struct snd_soc_component *component,
unsigned int reg);
int snd_soc_component_write(struct snd_soc_component *component,
unsigned int reg, unsigned int val);
int snd_soc_component_update_bits(struct snd_soc_component *component,

14
sound/soc/soc-io.c
View File

@ -41,6 +41,20 @@ int snd_soc_component_read(struct snd_soc_component *component,
}
EXPORT_SYMBOL_GPL(snd_soc_component_read);
unsigned int snd_soc_component_read32(struct snd_soc_component *component,
unsigned int reg)
{
unsigned int val;
int ret;
ret = snd_soc_component_read(component, reg, &val);
if (ret < 0)
return -1;
return val;
}
EXPORT_SYMBOL_GPL(snd_soc_component_read32);
/**
* snd_soc_component_write() - Write register value
* @component: Component to write to