Re: [PATCH/RFC 10/14] dt-bindings: power: Document Renesas R-Car X5H Module Controller

Hi Marek,

On Thu, 7 May 2026 at 23:53, Marek Vasut <[email protected]> wrote:
> On 4/21/26 8:11 PM, Geert Uytterhoeven wrote:
> > +  '#power-domain-cells':
> > +    description: |
> > +      - The first power domain specifier cell must be either the Module
> > +        Power Domain Gating (MPDG) register index (0x00-0x3f) from the
> > +        datasheet, or a Power Domain number, as defined in
> > +        <dt-bindings/power/renesas,r8a78000-mdlc.h>,
> > +      - The second power domain specifier cell must be the module number
> > +        (0x00-0xff), composed of the Module System Reset (MSRES) register index
> > +        in the high nibble, and the Module Reset Destination bitfield index in
> > +        the low nibble.
> > +    const: 2
> > +
> > +  '#reset-cells':
> > +    description:
> > +      The single reset specifier cell must be the module number (0x00-0xff).
> > +    const: 1
> Just one more question -- the power-domain-cells second cell and
> reset-cells are always going to be identical values, correct ? If so, it

Yes they are.

> would be nice to keep the description: aligned, and maybe even indicate
> in the description that those two values have to be the same.

I thought that was obvious (but apparently it is not)? The descriptions
are identical, except for the latter not explaining again what a module
number is composed of...

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds