[PATCH v2 1/3] dt-bindings: aspeed-lpc: Add UART routing compatible string

[Rob Herring]

On Thu, Sep 02, 2021 at 10:18:14AM +0800, Chia-Wei Wang wrote:
> Add the compatible string and the device tree description for the
> Aspeed AST25xx/AST26xx UART routing control.
> 
> Signed-off-by: Chia-Wei Wang <chiawei_wang at aspeedtech.com>
> ---
>  .../devicetree/bindings/mfd/aspeed-lpc.txt    | 22 +++++++++++++++++++
>  1 file changed, 22 insertions(+)

Either convert aspeed-lpc.txt to DT schema or make this a separate 
schema doc.

> 
> diff --git a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
> index 936aa108eab4..45d44f812e5e 100644
> --- a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
> +++ b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
> @@ -155,3 +155,25 @@ lpc_reset: reset-controller at 98 {
>          reg = <0x98 0x4>;
>          #reset-cells = <1>;
>  };
> +
> +UART routing control
> +--------------------
> +
> +The UART routing control manages the RX muxes among the UART controllers
> +and the I/O pins. This is typicall used for the Serial-Over-Lan (SOL)
> +service.
> +
> +Required properties:
> +
> + - compatible:		One of:
> +			"aspeed,ast2500-uart-routing";
> +			"aspeed,ast2600-uart-routing";
> +
> + - reg:			offset and length of the IP in the LPC memory region
> +
> +Example:
> +
> +uart_routing: uart-routing at 98 {
> +	compatible = "aspeed,ast2600-uart-routing";
> +	reg = <0x98 0x8>;
> +};
> -- 
> 2.17.1
> 
>