From 5cf015d9cb02c360582b624497b0a1716881cf28 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Tue, 4 Apr 2017 15:26:29 -0400 Subject: [PATCH] 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:. 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 Acked-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/codecs/wm8978.c | 7 +++++++ 1 file changed, 7 insertions(+) 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, -- 2.20.1