Re: [RFC/PATCH v2 02/16] dt-bindings: soc: bcm: bcm2835-pm: Introduce reg-names

From: Rob Herring
Date: Wed Feb 10 2021 - 17:45:16 EST


On Tue, Feb 09, 2021 at 01:58:58PM +0100, Nicolas Saenz Julienne wrote:
> Anticipating the introduction of BCM2711, of which we'll need to support
> its new Argon ASB, introduce reg-names into bcm2835-pm's binding. This
> will help to have a consistent mapping between resources and their
> meaning.
>
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx>
> ---
> .../devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml
> index 8bc65e5f62a7..1dbe3657c690 100644
> --- a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml
> +++ b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml
> @@ -26,8 +26,13 @@ properties:
> reg:
> minItems: 1
> maxItems: 2
> - description: Specifies base physical address and size of the two register
> - ranges, "PM" and "ASYNC_BRIDGE" in that order.

Ah, it's okay this way if you have -names. Or have items to give a bit
more detail.

> +
> + reg-names:
> + minItems: 1
> + maxItems: 2
> + items:
> + - const: pm
> + - const: rpivid_asb

Not really clear how this corresponds to 'ASYNC_BRIDGE'. 'asb' I guess?

>
> "#power-domain-cells":
> const: 1
> @@ -54,6 +59,7 @@ properties:
> required:
> - compatible
> - reg
> + - reg-names

You can't really make added properties required.

> - "#power-domain-cells"
> - "#reset-cells"
> - clocks
> @@ -70,6 +76,7 @@ examples:
> #reset-cells = <1>;
> reg = <0x7e100000 0x114>,
> <0x7e00a000 0x24>;
> + reg-names = "pm", "rpivid_asb";
> clocks = <&clocks BCM2835_CLOCK_V3D>,
> <&clocks BCM2835_CLOCK_PERI_IMAGE>,
> <&clocks BCM2835_CLOCK_H264>,
> --
> 2.30.0
>