Re: [PATCH v2 1/1] schemas: i2c: Introduce I2C bus extensions

[Herve Codina]

Hi Luca,

On Fri, 2 May 2025 16:09:10 +0200
Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx> wrote:

> Hello Hervé,
> 
> On Wed, 30 Apr 2025 17:22:00 +0200
> Herve Codina <herve.codina@xxxxxxxxxxx> wrote:
> 
> > An I2C bus can be wired to the connector and allows an add-on board to
> > connect additional I2C devices to this bus.
> > 
> > Those additional I2C devices could be described as sub-nodes of the I2C
> > bus controller node however for hotplug connectors described via device
> > tree overlays there is additional level of indirection, which is needed
> > to decouple the overlay and the base tree:
> > 
> >   --- base device tree ---
> > 
> >   i2c1: i2c@abcd0000 {
> >       compatible = "xyz,i2c-ctrl";
> >       i2c-bus-extension@0 {
> >           i2c-bus = <&i2c_ctrl>;
> >       };
> >       ...
> >   };
> > 
> >   i2c5: i2c@cafe0000 {
> >       compatible = "xyz,i2c-ctrl";
> >       i2c-bus-extension@0 {
> >           i2c-bus = <&i2c-sensors>;  
>                         ^^^^^^^^^^^
> 
> This should be i2c_sensors (with an underscore)...
> 
> >       };
> >       ...
> >   };
> > 
> >   connector {
> >       i2c_ctrl: i2c-ctrl {
> >           i2c-parent = <&i2c1>;
> >           #address-cells = <1>;
> >           #size-cells = <0>;
> >       };
> > 
> >       i2c-sensors {  
> 
> ...and this should have a label:
> 
>         i2c-sensors: i2c-sensors {
> 
> With those fixed you can add my:

Indeed, thanks for pointing out.

I will fix them in the next iteration and add your 'Reviewed-by' tag.

> 
> +Reviewed-by: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>
> 

Best regards,
Hervé