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ASoC: wm8904: add dt ids table 

The WM8904 and WM8918 has the same data type, while the WM8912
has different data type. So, use the data in dt ids table to
distinguish them.

Signed-off-by: Alexander Morozov <linux@meltdown.ru>
[voice.shen@atmel.com: add code to distinguish device type]
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Alexander Morozov 2015-01-27 11:36:39 +08:00 committed by Mark Brown
parent 97bf6af1f9
commit b1a5fad5f8
1 changed files with 30 additions and 1 deletions
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31
sound/soc/codecs/wm8904.c
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@ -2098,6 +2098,24 @@ static const struct regmap_config wm8904_regmap = {
.num_reg_defaults = ARRAY_SIZE(wm8904_reg_defaults),
};
#ifdef CONFIG_OF
static enum wm8904_type wm8904_data = WM8904;
static enum wm8904_type wm8912_data = WM8912;
static const struct of_device_id wm8904_of_match[] = {
{
.compatible = "wlf,wm8904",
.data = &wm8904_data,
}, {
.compatible = "wlf,wm8912",
.data = &wm8912_data,
}, {
/* sentinel */
}
};
MODULE_DEVICE_TABLE(of, wm8904_of_match);
#endif
static int wm8904_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
@ -2125,7 +2143,17 @@ static int wm8904_i2c_probe(struct i2c_client *i2c,
return ret;
}
wm8904->devtype = id->driver_data;
if (i2c->dev.of_node) {
const struct of_device_id *match;
match = of_match_node(wm8904_of_match, i2c->dev.of_node);
if (match == NULL)
return -EINVAL;
wm8904->devtype = *((enum wm8904_type *)match->data);
} else {
wm8904->devtype = id->driver_data;
}
i2c_set_clientdata(i2c, wm8904);
wm8904->pdata = i2c->dev.platform_data;
@ -2259,6 +2287,7 @@ static struct i2c_driver wm8904_i2c_driver = {
.driver = {
.name = "wm8904",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(wm8904_of_match),
},
.probe = wm8904_i2c_probe,
.remove = wm8904_i2c_remove,