Re: [PATCH v1 4/5] dt-bindings: phy: phy-rockchip-dphy-rx0: add support for tx1rx1 phy

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Hi Mikhail,

Some comments below. Have a look if it is useful.

On 8/30/21 8:07 PM, Mikhail Rudenko wrote:
> RK3399 TX1RX1 D-PHY is not a child of GRF and uses reg, thus add
> corresponding properties conditionally. It also requires DSI clock to
> operate, so check for it. Since we now support both rx0 and tx1rx1,
> rename the schema to rockchip-mipi-dphy-rx.yaml.
> 
> Signed-off-by: Mikhail Rudenko <mike.rudenko@xxxxxxxxx>
> ---
>  ...hy-rx0.yaml => rockchip-mipi-dphy-rx.yaml} | 39 +++++++++++++++++--
>  1 file changed, 35 insertions(+), 4 deletions(-)
>  rename Documentation/devicetree/bindings/phy/{rockchip-mipi-dphy-rx0.yaml => rockchip-mipi-dphy-rx.yaml} (65%)
> 
> diff --git a/Documentation/devicetree/bindings/phy/rockchip-mipi-dphy-rx0.yaml b/Documentation/devicetree/bindings/phy/rockchip-mipi-dphy-rx.yaml
> similarity index 65%
> rename from Documentation/devicetree/bindings/phy/rockchip-mipi-dphy-rx0.yaml
> rename to Documentation/devicetree/bindings/phy/rockchip-mipi-dphy-rx.yaml
> index 7d888d358823..f42319448fc9 100644
> --- a/Documentation/devicetree/bindings/phy/rockchip-mipi-dphy-rx0.yaml
> +++ b/Documentation/devicetree/bindings/phy/rockchip-mipi-dphy-rx.yaml
> @@ -1,10 +1,10 @@
>  # SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>  %YAML 1.2
>  ---
> -$id: http://devicetree.org/schemas/phy/rockchip-mipi-dphy-rx0.yaml#
> +$id: http://devicetree.org/schemas/phy/rockchip-mipi-dphy-rx.yaml#
>  $schema: http://devicetree.org/meta-schemas/core.yaml#
>  
> -title: Rockchip SoC MIPI RX0 D-PHY Device Tree Bindings
> +title: Rockchip SoC MIPI RX0/TX1RX1 D-PHY Device Tree Bindings
>  
>  maintainers:
>    - Helen Koike <helen.koike@xxxxxxxxxxxxx>
> @@ -16,19 +16,28 @@ description: |
>  
>  properties:
>    compatible:
> -    const: rockchip,rk3399-mipi-dphy-rx0
> +    enum:
> +      - rockchip,rk3399-mipi-dphy-rx0
> +      - rockchip,rk3399-mipi-dphy-tx1rx1
> +

> +  reg:
> +    maxItems: 1

This allows every node to have a reg property.

>  
>    clocks:
> +    minItems: 3
>      items:
>        - description: MIPI D-PHY ref clock
> -      - description: MIPI D-PHY RX0 cfg clock
> +      - description: MIPI D-PHY RX0/TX1RX1 cfg clock
>        - description: Video in/out general register file clock
> +      - description: MIPI D-PHY DSI clock
>  
>    clock-names:
> +    minItems: 3
>      items:
>        - const: dphy-ref
>        - const: dphy-cfg
>        - const: grf
> +      - const: dsi
>  
>    '#phy-cells':
>      const: 0
> @@ -37,6 +46,12 @@ properties:
>      description: Video in/out power domain.
>      maxItems: 1
>  

> +  rockchip,grf:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description:
> +      The phandle of the syscon node for the general register file
> +      (GRF), required for TX1RX1 MIPI D-PHY on RK3399.

This allows every node to have a rockchip,grf property.

> +
>  required:
>    - compatible
>    - clocks
> @@ -44,6 +59,22 @@ required:
>    - '#phy-cells'
>    - power-domains
>  
> +if:
> +  properties:
> +    compatible:
> +      contains:
> +          const: rockchip,rk3399-mipi-dphy-tx1rx1
> +then:

> +  required:

Move/swap the properties section above the required section.

> +    - reg
> +    - rockchip,grf
> +
> +  properties:

  reg:
    maxItems: 1

> +    clocks:
> +      minItems: 4
> +    clock-names:
> +      minItems: 4

  rockchip,grf:
    $ref: /schemas/types.yaml#/definitions/phandle
    description:
      The phandle of the syscon node for the general register file(GRF).


", required for TX1RX1 MIPI D-PHY on RK3399."

This phrase is already said/done with the "required:" section above

>  additionalProperties: false
>  
>  examples:
> 



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