Re: [PATCH v2 1/2] media: dt-bindings: Add ST VD56G3 camera sensor binding

From: Sakari Ailus
Date: Mon May 27 2024 - 16:11:31 EST


Hi Sylvain,

On Mon, May 27, 2024 at 03:14:35PM +0200, Sylvain Petinot wrote:
> >> diff --git a/Documentation/devicetree/bindings/media/i2c/st,st-vd56g3.yaml b/Documentation/devicetree/bindings/media/i2c/st,st-vd56g3.yaml
> >> new file mode 100644
> >> index 000000000000..22cb2557e311
> >> --- /dev/null
> >> +++ b/Documentation/devicetree/bindings/media/i2c/st,st-vd56g3.yaml
> >
> > Why duplicated 'st'?
>
> Legacy : our first st-mipid02 driver was upstream this way few years back.
>
> We have 3 options :
>
> 1- keep this unpleasant naming to keep consistency with st-mipid02 [1]
> and st-vgxy61 [2]
> 2- rename this driver properly ('vd56g3') and keep the two others the
> old way (I personally don't like this option)
> 3- rename this driver properly ('vd56g3') and in a second patch rename
> the two others drivers.
>
> I would be interested to get Sakari's opinion on this subject.
>
> [1]:
> https://elixir.bootlin.com/linux/v6.9.1/source/drivers/media/i2c/st-mipid02.c
>
> [2]:
> https://elixir.bootlin.com/linux/v6.9.1/source/drivers/media/i2c/st-vgxy61.c

The driver could be renamed to align with a large majority that use the
same name as the bindings without the vendor prefix. You could add
MODULE_ALIAS() to help user space to cope with the change.

The DT compatible string indeed should reflect the name of the device, the
driver is indeed another matter.

--
Kind regards,

Sakari Ailus