[PATCH v3 2/3] dt-bindings: pinctrl: aspeed: Add support for AST27xx

[Krzysztof Kozlowski]

On 20/01/2026 12:43, Billy Tsai wrote:
> Add bindings for the pin controller found in ASPEED AST27xx SoCs.
> 
> The AST2700 SoC consists of two interconnected SoC instances, each
> with its own pin controller register block managed by a separate
> System Control Unit (SCU).
> 
> Introduce the "aspeed,ast2700-soc0-pinctrl" compatible string to
> describe the SoC0 pin controller, which is not compatible with
> existing ASPEED pinctrl bindings.
> 
> The SoC1 pin controller follows a regular and predictable register
> layout and can be described using an existing generic pinctrl
> binding, therefore no dedicated AST2700-specific compatible string
> is introduced for it.
> 
> Signed-off-by: Billy Tsai <billy_tsai at aspeedtech.com>
> ---
>  .../bindings/mfd/aspeed,ast2x00-scu.yaml           |  27 +++++
>  .../pinctrl/aspeed,ast2700-soc0-pinctrl.yaml       | 130 +++++++++++++++++++++
>  2 files changed, 157 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/aspeed,ast2x00-scu.yaml b/Documentation/devicetree/bindings/mfd/aspeed,ast2x00-scu.yaml
> index ff6cf8f63cbc..7eda8fddc560 100644
> --- a/Documentation/devicetree/bindings/mfd/aspeed,ast2x00-scu.yaml
> +++ b/Documentation/devicetree/bindings/mfd/aspeed,ast2x00-scu.yaml
> @@ -164,4 +164,31 @@ examples:
>              reg = <0x7c 0x4>, <0x150 0x8>;
>          };
>      };
> +
> +  - |
> +    syscon at 12c02000 {
> +        compatible = "aspeed,ast2700-scu0", "syscon", "simple-mfd";

No changes in the binding, so please do not add unnecessary examples.

Plus this makes little sense now in way you split patches :/. Either you
keep separate MFD from pinctrl for merging or, if not separate, you
squash patches.

Best regards,
Krzysztof