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ASoC: add Component level .read/.write 

In current ALSA SoC, Codec only has .read/.write callback.
Codec will be merged into Component in next generation ALSA SoC,
thus current Codec specific feature need to be merged into it.
This is glue patch for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Kuninori Morimoto 2018-01-16 02:00:59 +00:00 committed by Mark Brown
parent b9f902b7fd
commit d0ff8ba57d
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2 changed files with 9 additions and 0 deletions
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3
include/sound/soc.h
View File

@ -802,6 +802,9 @@ struct snd_soc_component_driver {
int (*suspend)(struct snd_soc_component *);
int (*resume)(struct snd_soc_component *);
unsigned int (*read)(struct snd_soc_component *, unsigned int);
int (*write)(struct snd_soc_component *, unsigned int, unsigned int);
/* pcm creation and destruction */
int (*pcm_new)(struct snd_soc_pcm_runtime *);
void (*pcm_free)(struct snd_pcm *);

6
sound/soc/soc-io.c
View File

@ -34,6 +34,10 @@ int snd_soc_component_read(struct snd_soc_component *component,
ret = regmap_read(component->regmap, reg, val);
else if (component->read)
ret = component->read(component, reg, val);
else if (component->driver->read) {
*val = component->driver->read(component, reg);
ret = 0;
}
else
ret = -EIO;
@ -70,6 +74,8 @@ int snd_soc_component_write(struct snd_soc_component *component,
return regmap_write(component->regmap, reg, val);
else if (component->write)
return component->write(component, reg, val);
else if (component->driver->write)
return component->driver->write(component, reg, val);
else
return -EIO;
}