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Groups > linux.kernel > #1707254
| From | Kieran Bingham <kieran.bingham@ideasonboard.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] media: i2c: adv748x: Export I2C device table entries as module aliases |
| Date | 2017-08-09 12:30 +0200 |
| Message-ID | <ucwpr-5Qr-5@gated-at.bofh.it> (permalink) |
| References | <ucvD3-5jn-1@gated-at.bofh.it> |
| Organization | Ideas on Board |
Hi Javier,
Thankyou for the patch
On 09/08/17 10:37, Javier Martinez Canillas wrote:
> The I2C core always reports a MODALIAS of the form i2c:<foo> even if the
> device was registered via OF, and the driver is only exporting the OF ID
> table entries as module aliases.
>
> So if the driver is built as module, autoload won't work since udev/kmod
> won't be able to match the registered OF device with its driver module.
Good catch, and perhaps I should have known better :D
I've only worked on this driver as a built-in so far :-) #BadExcuses
> Before this patch:
>
> $ modinfo drivers/media/i2c/adv748x/adv748x.ko | grep alias
> alias: of:N*T*Cadi,adv7482C*
> alias: of:N*T*Cadi,adv7482
> alias: of:N*T*Cadi,adv7481C*
> alias: of:N*T*Cadi,adv7481
>
> After this patch:
>
> modinfo drivers/media/i2c/adv748x/adv748x.ko | grep alias
> alias: of:N*T*Cadi,adv7482C*
> alias: of:N*T*Cadi,adv7482
> alias: of:N*T*Cadi,adv7481C*
> alias: of:N*T*Cadi,adv7481
> alias: i2c:adv7482
> alias: i2c:adv7481
>
> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
> ---
>
> drivers/media/i2c/adv748x/adv748x-core.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/media/i2c/adv748x/adv748x-core.c b/drivers/media/i2c/adv748x/adv748x-core.c
> index aeb6ae80cb18..5ee14f2c2747 100644
> --- a/drivers/media/i2c/adv748x/adv748x-core.c
> +++ b/drivers/media/i2c/adv748x/adv748x-core.c
> @@ -807,6 +807,7 @@ static const struct i2c_device_id adv748x_id[] = {
> { "adv7482", 0 },
> { },
> };
> +MODULE_DEVICE_TABLE(i2c, adv748x_id);
>
> static const struct of_device_id adv748x_of_table[] = {
> { .compatible = "adi,adv7481", },
>
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[PATCH] media: i2c: adv748x: Export I2C device table entries as module aliases Javier Martinez Canillas <javierm@redhat.com> - 2017-08-09 11:40 +0200
Re: [PATCH] media: i2c: adv748x: Export I2C device table entries as module aliases Kieran Bingham <kieran.bingham@ideasonboard.com> - 2017-08-09 12:30 +0200
Re: [PATCH] media: i2c: adv748x: Export I2C device table entries as module aliases Javier Martinez Canillas <javierm@redhat.com> - 2017-08-09 13:00 +0200
Re: [PATCH] media: i2c: adv748x: Export I2C device table entries as module aliases Kieran Bingham <kieran.bingham@ideasonboard.com> - 2017-08-09 13:10 +0200
Re: [PATCH] media: i2c: adv748x: Export I2C device table entries as module aliases Javier Martinez Canillas <javierm@redhat.com> - 2017-08-09 13:20 +0200
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