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ASoC: wm8960: Support shared LRCLK

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If the LRCLK is shared and the WM8960 is clock master then we should
enable the LRCM bit to tell the device that it should drive LRCLK when
either ADC or DAC is enabled rather than separately driving the two
LRCLKs.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2012-09-13 11:46:58 +08:00
parent 2cbde7abfd
commit 3706163140
2 changed files with 13 additions and 0 deletions
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2
include/sound/wm8960.h
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@ -19,6 +19,8 @@ struct wm8960_data {
bool capless; /* Headphone outputs configured in capless mode */
int dres; /* Discharge resistance for headphone outputs */
bool shared_lrclk; /* DAC and ADC LRCLKs are wired together */
};
#endif

11
sound/soc/codecs/wm8960.c
View File

@ -1036,6 +1036,7 @@ static const struct regmap_config wm8960_regmap = {
static __devinit int wm8960_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
struct wm8960_priv *wm8960;
int ret;
@ -1048,6 +1049,16 @@ static __devinit int wm8960_i2c_probe(struct i2c_client *i2c,
if (IS_ERR(wm8960->regmap))
return PTR_ERR(wm8960->regmap);
if (pdata && pdata->shared_lrclk) {
ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
0x4, 0x4);
if (ret != 0) {
dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
ret);
return ret;
}
}
i2c_set_clientdata(i2c, wm8960);
ret = snd_soc_register_codec(&i2c->dev,