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ASoC: sta529: Add OF device ID table 

The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Before this patch:

$ modinfo sound/soc/codecs/snd-soc-sta529.ko | grep alias
alias:          i2c:sta529

After this patch:

$ modinfo sound/soc/codecs/snd-soc-sta529.ko | grep alias
alias:          of:N*T*Cst,sta529C*
alias:          of:N*T*Cst,sta529
alias:          i2c:sta529

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Javier Martinez Canillas 2017-04-04 15:26:27 -04:00 committed by Mark Brown
parent a5de5b74a5
commit 9abe464821
1 changed files with 7 additions and 0 deletions
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7
sound/soc/codecs/sta529.c
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@ -375,9 +375,16 @@ static const struct i2c_device_id sta529_i2c_id[] = {
};
MODULE_DEVICE_TABLE(i2c, sta529_i2c_id);
static const struct of_device_id sta529_of_match[] = {
{ .compatible = "st,sta529", },
{ }
};
MODULE_DEVICE_TABLE(of, sta529_of_match);
static struct i2c_driver sta529_i2c_driver = {
.driver = {
.name = "sta529",
.of_match_table = sta529_of_match,
},
.probe = sta529_i2c_probe,
.remove = sta529_i2c_remove,