linux-kernel - Re: [PATCH V6 3/3] dt-bindings: serial: Add binding for UART pin swap

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Message-ID: <20200515030133.GA11479@bogus>
Date:   Thu, 14 May 2020 22:01:33 -0500
From:   Rob Herring <robh@...nel.org>
To:     Akash Asthana <akashast@...eaurora.org>
Cc:     gregkh@...uxfoundation.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        mgautam@...eaurora.org, rojay@...eaurora.org,
        skakit@...eaurora.org, mka@...omium.org
Subject: Re: [PATCH V6 3/3] dt-bindings: serial: Add binding for UART pin swap

On Thu, May 07, 2020 at 08:30:47PM +0530, Akash Asthana wrote:
> Add documentation to support RX-TX & CTS-RTS GPIO pin swap in HW.
> 
> Signed-off-by: Akash Asthana <akashast@...eaurora.org>
> ---
>  Documentation/devicetree/bindings/serial/serial.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/serial/serial.yaml b/Documentation/devicetree/bindings/serial/serial.yaml
> index 53204d9..e657dd6 100644
> --- a/Documentation/devicetree/bindings/serial/serial.yaml
> +++ b/Documentation/devicetree/bindings/serial/serial.yaml
> @@ -67,6 +67,12 @@ properties:
>        (wired and enabled by pinmux configuration).  This depends on both the
>        UART hardware and the board wiring.
>  
> +  rx-tx-swap:
> +    description: RX and TX pins are swapped.
> +
> +  cts-rts-swap:
> +    description: CTS and RTS pins are swapped.

Need 'type: boolean' on both of these.

> +
>  if:
>    required:
>      - uart-has-rtscts
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,\na Linux Foundation Collaborative Project