Re: [RFC PATCH 09/16] dt-bindings: pinctrl: mediatek: rt305x: split binding

[Krzysztof Kozlowski]

On 22/02/2023 19:39, arinc9.unal@xxxxxxxxx wrote:
> From: Arınç ÜNAL <arinc.unal@xxxxxxxxxx>
> 
> The RT3352 and RT5350 SoCs each contain different pin muxing information,
> therefore, should be split. This can be done now that there are compatible
> strings to distinguish them from other SoCs.
> 
> Split the schema out to mediatek,rt3352-pinctrl.yaml and
> mediatek,rt5350-pinctrl.yaml.
> 
> Signed-off-by: Arınç ÜNAL <arinc.unal@xxxxxxxxxx>
> ---
>  .../pinctrl/mediatek,rt305x-pinctrl.yaml      |  78 +-----
>  .../pinctrl/mediatek,rt3352-pinctrl.yaml      | 247 ++++++++++++++++++
>  .../pinctrl/mediatek,rt5350-pinctrl.yaml      | 210 +++++++++++++++
>  3 files changed, 462 insertions(+), 73 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/mediatek,rt3352-pinctrl.yaml
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/mediatek,rt5350-pinctrl.yaml
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,rt305x-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,rt305x-pinctrl.yaml
> index 61fcf3ab1091..1e6c7e7f2fe2 100644
> --- a/Documentation/devicetree/bindings/pinctrl/mediatek,rt305x-pinctrl.yaml
> +++ b/Documentation/devicetree/bindings/pinctrl/mediatek,rt305x-pinctrl.yaml
> @@ -11,8 +11,7 @@ maintainers:
>    - Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx>
>  
>  description:
> -  MediaTek RT305X pin controller for RT3050, RT3052, RT3350, RT3352 and RT5350
> -  SoCs.
> +  MediaTek RT305X pin controller for RT3050, RT3052, and RT3350 SoCs.
>    The pin controller can only set the muxing of pin groups. Muxing individual
>    pins is not supported. There is no pinconf support.
>  
> @@ -36,21 +35,9 @@ patternProperties:
>            function:
>              description:
>                A string containing the name of the function to mux to the group.
> -            anyOf:
> -              - description: For RT3050, RT3052 and RT3350 SoCs
> -                enum: [gpio, gpio i2s, gpio uartf, i2c, i2s uartf, jtag, mdio,
> -                       pcm gpio, pcm i2s, pcm uartf, rgmii, sdram, spi, uartf,
> -                       uartlite]
> -
> -              - description: For RT3352 SoC
> -                enum: [gpio, gpio i2s, gpio uartf, i2c, i2s uartf, jtag, led,
> -                       lna, mdio, pa, pcm gpio, pcm i2s, pcm uartf, rgmii, spi,
> -                       spi_cs1, uartf, uartlite, wdg_cs1]
> -
> -              - description: For RT5350 SoC
> -                enum: [gpio, gpio i2s, gpio uartf, i2c, i2s uartf, jtag, led,
> -                       pcm gpio, pcm i2s, pcm uartf, spi, spi_cs1, uartf,
> -                       uartlite, wdg_cs1]
> +            enum: [gpio, gpio i2s, gpio uartf, i2c, i2s uartf, jtag, mdio,
> +                   pcm gpio, pcm i2s, pcm uartf, rgmii, sdram, spi, uartf,
> +                   uartlite]
>  
>            groups:
>              description:
> @@ -69,17 +56,7 @@ patternProperties:
>              then:
>                properties:
>                  groups:
> -                  anyOf:
> -                    - description: For RT3050, RT3052 and RT3350 SoCs
> -                      enum: [i2c, jtag, mdio, rgmii, sdram, spi, uartf,
> -                             uartlite]
> -
> -                    - description: For RT3352 SoC
> -                      enum: [i2c, jtag, led, lna, mdio, pa, rgmii, spi, spi_cs1,
> -                             uartf, uartlite]
> -
> -                    - description: For RT5350 SoC
> -                      enum: [i2c, jtag, led, spi, spi_cs1, uartf, uartlite]
> +                  enum: [i2c, jtag, mdio, rgmii, sdram, spi, uartf, uartlite]
>  
>            - if:
>                properties:
> @@ -126,24 +103,6 @@ patternProperties:
>                  groups:
>                    enum: [jtag]
>  
> -          - if:
> -              properties:
> -                function:
> -                  const: led
> -            then:
> -              properties:
> -                groups:
> -                  enum: [led]
> -
> -          - if:
> -              properties:
> -                function:
> -                  const: lna
> -            then:
> -              properties:
> -                groups:
> -                  enum: [lna]
> -
>            - if:
>                properties:
>                  function:
> @@ -153,15 +112,6 @@ patternProperties:
>                  groups:
>                    enum: [mdio]
>  
> -          - if:
> -              properties:
> -                function:
> -                  const: pa
> -            then:
> -              properties:
> -                groups:
> -                  enum: [pa]
> -
>            - if:
>                properties:
>                  function:
> @@ -216,15 +166,6 @@ patternProperties:
>                  groups:
>                    enum: [spi]
>  
> -          - if:
> -              properties:
> -                function:
> -                  const: spi_cs1
> -            then:
> -              properties:
> -                groups:
> -                  enum: [spi_cs1]
> -
>            - if:
>                properties:
>                  function:
> @@ -243,15 +184,6 @@ patternProperties:
>                  groups:
>                    enum: [uartlite]
>  
> -          - if:
> -              properties:
> -                function:
> -                  const: wdg_cs1
> -            then:
> -              properties:
> -                groups:
> -                  enum: [spi_cs1]
> -
>          additionalProperties: false
>  
>      additionalProperties: false
> diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,rt3352-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,rt3352-pinctrl.yaml
> new file mode 100644
> index 000000000000..7a74c1602afc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/mediatek,rt3352-pinctrl.yaml
> @@ -0,0 +1,247 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/mediatek,rt3352-pinctrl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek RT3352 Pin Controller
> +
> +maintainers:
> +  - Arınç ÜNAL <arinc.unal@xxxxxxxxxx>
> +  - Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx>
> +
> +description:
> +  MediaTek RT3352 pin controller for RT3352 SoC.
> +  The pin controller can only set the muxing of pin groups. Muxing individual
> +  pins is not supported. There is no pinconf support.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - mediatek,rt3352-pinctrl
> +      - ralink,rt305x-pinctrl
> +      - ralink,rt2880-pinmux

Following Rob's comments, you need to keep old compatibles when
splitting binding.

Best regards,
Krzysztof