[PATCH 1/3] dt-bindings: display: rockchip: make reg-names mandatory for VOP2

[Rob Herring]

On Tue, May 10, 2022 at 09:09:12AM +0200, Sascha Hauer wrote:
> The VOP2 driver relies on reg-names properties, but these are not
> documented. Add the missing documentation, make reg-names mandatory
> and increase minItems to 2 as always both register spaces are needed.
> 
> Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
> ---
>  .../bindings/display/rockchip/rockchip-vop2.yaml          | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml
> index 655d9b327f7d3..7238cdec9eb8a 100644
> --- a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml
> +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml
> @@ -22,7 +22,7 @@ properties:
>        - rockchip,rk3568-vop
>  
>    reg:
> -    minItems: 1
> +    minItems: 2

You ran the dt checks, right? This should give you a warning. The 
correct thing is drop minItems if there's always 2 entries.

>      items:
>        - description:
>            Must contain one entry corresponding to the base address and length
> @@ -31,6 +31,11 @@ properties:
>            Can optionally contain a second entry corresponding to
>            the CRTC gamma LUT address.
>  
> +  reg-names:
> +    items:
> +      - const: vop
> +      - const: gamma-lut
> +
>    interrupts:
>      maxItems: 1
>      description:
> @@ -86,6 +91,7 @@ properties:
>  required:
>    - compatible
>    - reg
> +  - reg-names
>    - interrupts
>    - clocks
>    - clock-names
> -- 
> 2.30.2
> 
>