Re: [PATCH] ASoC: tfa9879: Export OF device ID as module alias

From: Peter Rosin
Date: Thu Nov 30 2017 - 13:57:08 EST


On 2017-11-30 18:56, Javier Martinez Canillas wrote:
> The I2C core always reports a MODALIAS of the form i2c:<foo> even if the
> device was registered via OF, this means that exporting the OF device ID
> table device aliases in the module is not needed. But in order to change
> how the core reports modaliases to user-space, it's better to export it.

Looks ok to me,

Reviewed-by: Peter Rosin <peda@xxxxxxxxxx>

Cheers,
Peter

> Before this patch:
>
> $ modinfo sound/soc/codecs/snd-soc-tfa9879.ko | grep alias
> alias: i2c:tfa9879
>
> After this patch:
>
> $ modinfo sound/soc/codecs/snd-soc-tfa9879.ko | grep alias
> alias: i2c:tfa9879
> alias: of:N*T*Cnxp,tfa9879C*
> alias: of:N*T*Cnxp,tfa9879
>
> Signed-off-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
>
> ---
>
> sound/soc/codecs/tfa9879.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/sound/soc/codecs/tfa9879.c b/sound/soc/codecs/tfa9879.c
> index f8dd67ca0744..e7ca764b5729 100644
> --- a/sound/soc/codecs/tfa9879.c
> +++ b/sound/soc/codecs/tfa9879.c
> @@ -316,6 +316,7 @@ static const struct of_device_id tfa9879_of_match[] = {
> { .compatible = "nxp,tfa9879", },
> { }
> };
> +MODULE_DEVICE_TABLE(of, tfa9879_of_match);
>
> static struct i2c_driver tfa9879_i2c_driver = {
> .driver = {
>