static int snd_soc_flat_cache_sync(struct snd_soc_codec *codec)
{
int i;
int ret;
const struct snd_soc_codec_driver *codec_drv;
unsigned int val;
codec_drv = codec->driver;
for (i = 0; i < codec_drv->reg_cache_size; ++i) {
ret = snd_soc_cache_read(codec, i, &val);
if (ret)
return ret;
if (codec->reg_def_copy)
if (snd_soc_get_cache_val(codec->reg_def_copy,
i, codec_drv->reg_word_size) == val)
continue;
WARN_ON(!snd_soc_codec_writable_register(codec, i));
ret = snd_soc_write(codec, i, val);
if (ret)
return ret;
dev_dbg(codec->dev, "Synced register %#x, value = %#x\n",
i, val);
}
return 0;
}
static unsigned int adau1701_read(struct snd_soc_codec *codec, unsigned int reg)
{
unsigned int value;
unsigned int ret;
ret = snd_soc_cache_read(codec, reg, &value);
if (ret)
return ret;
return value;
}
static unsigned int lm4857_read(struct snd_soc_codec *codec,
unsigned int reg)
{
unsigned int val;
int ret;
ret = snd_soc_cache_read(codec, reg, &val);
if (ret)
return -1;
return val;
}
static unsigned int hw_read(struct snd_soc_codec *codec, unsigned int reg)
{
int ret;
unsigned int val;
if (reg >= codec->driver->reg_cache_size ||
snd_soc_codec_volatile_register(codec, reg) ||
codec->cache_bypass) {
if (codec->cache_only)
return -1;
BUG_ON(!codec->hw_read);
return codec->hw_read(codec, reg);
}
ret = snd_soc_cache_read(codec, reg, &val);
if (ret < 0)
return -1;
return val;
}
static unsigned int hw_read(struct snd_soc_codec *codec, unsigned int reg)
{
int ret;
unsigned int val;
if (reg >= codec->driver->reg_cache_size ||
snd_soc_codec_volatile_register(codec, reg) ||
codec->cache_bypass) {
if (codec->cache_only)
return -1;
ret = regmap_read(codec->control_data, reg, &val);
if (ret == 0)
return val;
else
return -1;
}
ret = snd_soc_cache_read(codec, reg, &val);
if (ret < 0)
return -1;
return val;
}
