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ASoC: wm8904: add dt ids table

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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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29
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;
}
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,