Re: [PATCH v3 13/15] dt-bindings: Increase Renesas X5H MDLC PD specifier bit width

[Laurent Pinchart]

On Thu, Oct 15, 2026 at 04:51:53PM +0900, Paul Elder wrote:
> In the Renesas R-Car X5H, the module controller's power domain specifier
> cell's bit width has been increased. Update the bindings documentation
> to reflect this.
> 
> Signed-off-by: Paul Elder <paul.elder+renesas@xxxxxxxxxxxxxxxx>
> ---
> I'm guessing that the maximum number is now 512 but I can't find
> definite proof of this.
> ---
>  Documentation/devicetree/bindings/power/renesas,r8a78000-mdlc.yaml | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/power/renesas,r8a78000-mdlc.yaml b/Documentation/devicetree/bindings/power/renesas,r8a78000-mdlc.yaml
> index 27d85dd49f9546230ba9632aaa324986261d2156..644b07a07955b98b1832074eefcfd63eb6d45adb 100644
> --- a/Documentation/devicetree/bindings/power/renesas,r8a78000-mdlc.yaml
> +++ b/Documentation/devicetree/bindings/power/renesas,r8a78000-mdlc.yaml
> @@ -12,7 +12,8 @@ maintainers:
>  description:
>    Each instance of the R-Car X5H Module Controller (MODULE CONTROL) provides
>    Power Gating for up to 64 Power Domains, and Module Standby and Reset for up
> -  to 256 modules in the Power Domain of each Module hierarchy.
> +  to 256 modules in the Power Domain of each Module hierarchy. Recent hardware
> +  versions have increased the number of supported modules.
>  
>  properties:
>    compatible:
> @@ -32,14 +33,14 @@ properties:
>          are always on, and for which there are no MPDG bits to control them.
>  
>        - The second power domain specifier cell is the module standby part, and
> -        must be the module number (0x00-0xff), composed of the Module System
> +        must be the module number (0x00-0x1ff), composed of the Module System
>          Reset (MSRES) register index in the high nibble, and the Module Reset

Technically it's high nibble plus one bit, but I think this is fine
as-is.

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>

>          Destination bitfield index in the low nibble.
>      const: 2
>  
>    '#reset-cells':
>      description:
> -      The single reset specifier cell must be the module number (0x00-0xff),
> +      The single reset specifier cell must be the module number (0x00-0x1ff),
>        and thus identical to the second power domain specifier cell.
>      const: 1
>  

-- 
Regards,

Laurent Pinchart