diff options
| author | Javier Martinez Canillas <javier@osg.samsung.com> | 2017-04-04 15:26:29 -0400 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-04-05 18:22:27 +0100 |
| commit | 5cf015d9cb02c360582b624497b0a1716881cf28 (patch) | |
| tree | f8d05c7161269e139bc24a38c4c524a7c9a79a2d /sound | |
| parent | a5de5b74a50113564a1e0850e2da96c37c35e55d (diff) | |
| download | linux-5cf015d9cb02c360582b624497b0a1716881cf28.tar.bz2 | |
ASoC: wm8978: 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-wm8978.ko | grep alias
alias: i2c:wm8978
After this patch:
$ modinfo sound/soc/codecs/snd-soc-wm8978.ko | grep alias
alias: i2c:wm8978
alias: of:N*T*Cwlf,wm8978C*
alias: of:N*T*Cwlf,wm8978
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/wm8978.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8978.c b/sound/soc/codecs/wm8978.c index 90b2d418ef60..cf761e2d7546 100644 --- a/sound/soc/codecs/wm8978.c +++ b/sound/soc/codecs/wm8978.c @@ -1071,9 +1071,16 @@ static const struct i2c_device_id wm8978_i2c_id[] = { }; MODULE_DEVICE_TABLE(i2c, wm8978_i2c_id); +static const struct of_device_id wm8978_of_match[] = { + { .compatible = "wlf,wm8978", }, + { } +}; +MODULE_DEVICE_TABLE(of, wm8978_of_match); + static struct i2c_driver wm8978_i2c_driver = { .driver = { .name = "wm8978", + .of_match_table = wm8978_of_match, }, .probe = wm8978_i2c_probe, .remove = wm8978_i2c_remove, |