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ASoC: Automatically initialize regmap for all components 

So far regmap is only automatically initialized for CODECs. Now that we have the
infrastructure in place to let components have DAPM widgets and controls that
want to use the generic regmap based IO also make sure to automatically
initialize regmap for all components.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Lars-Peter Clausen 2014-08-19 15:51:28 +02:00 committed by Mark Brown
parent 14621c7e5e
commit 886f569225
3 changed files with 17 additions and 49 deletions
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3
include/sound/soc.h
View File

@ -1289,9 +1289,6 @@ void snd_soc_component_async_complete(struct snd_soc_component *component);
int snd_soc_component_test_bits(struct snd_soc_component *component,
unsigned int reg, unsigned int mask, unsigned int value);
int snd_soc_component_init_io(struct snd_soc_component *component,
struct regmap *regmap);
/* device driver data */
static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,

35
sound/soc/soc-core.c
View File

@ -4032,8 +4032,23 @@ static int snd_soc_component_initialize(struct snd_soc_component *component,
return 0;
}
static void snd_soc_component_init_regmap(struct snd_soc_component *component)
{
if (!component->regmap)
component->regmap = dev_get_regmap(component->dev, NULL);
if (component->regmap) {
int val_bytes = regmap_get_val_bytes(component->regmap);
/* Errors are legitimate for non-integer byte multiples */
if (val_bytes > 0)
component->val_bytes = val_bytes;
}
}
static void snd_soc_component_add_unlocked(struct snd_soc_component *component)
{
if (!component->write && !component->read)
snd_soc_component_init_regmap(component);
list_add(&component->list, &component_list);
}
@ -4371,7 +4386,6 @@ int snd_soc_register_codec(struct device *dev,
{
struct snd_soc_codec *codec;
struct snd_soc_dai *dai;
struct regmap *regmap;
int ret, i;
dev_dbg(dev, "codec register %s\n", dev_name(dev));
@ -4425,23 +4439,8 @@ int snd_soc_register_codec(struct device *dev,
codec->component.debugfs_prefix = "codec";
#endif
if (!codec->component.write) {
if (codec_drv->get_regmap)
regmap = codec_drv->get_regmap(dev);
else
regmap = dev_get_regmap(dev, NULL);
if (regmap) {
ret = snd_soc_component_init_io(&codec->component,
regmap);
if (ret) {
dev_err(codec->dev,
"Failed to set cache I/O:%d\n",
ret);
goto err_cleanup;
}
}
}
if (codec_drv->get_regmap)
codec->component.regmap = codec_drv->get_regmap(dev);
for (i = 0; i < num_dai; i++) {
fixup_codec_formats(&dai_drv[i].playback);

28
sound/soc/soc-io.c
View File

@ -271,31 +271,3 @@ int snd_soc_platform_write(struct snd_soc_platform *platform,
return snd_soc_component_write(&platform->component, reg, val);
}
EXPORT_SYMBOL_GPL(snd_soc_platform_write);
/**
* snd_soc_component_init_io() - Initialize regmap IO
*
* @component: component to initialize
* @regmap: regmap instance to use for IO operations
*
* Return: 0 on success, a negative error code otherwise
*/
int snd_soc_component_init_io(struct snd_soc_component *component,
struct regmap *regmap)
{
int ret;
if (!regmap)
return -EINVAL;
ret = regmap_get_val_bytes(regmap);
/* Errors are legitimate for non-integer byte
* multiples */
if (ret > 0)
component->val_bytes = ret;
component->regmap = regmap;
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_component_init_io);