linux-kernel - Re: [PATCH v1 1/3] dt-bindings: serial: snps-dw-apb-uart: Add one more reset signal for StarFive JH7110 SoC

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Date: Fri, 17 May 2024 17:16:45 +0100
From: Conor Dooley <conor@...nel.org>
To: Hal Feng <hal.feng@...rfivetech.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jirislaby@...nel.org>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Conor Dooley <conor+dt@...nel.org>,
	Palmer Dabbelt <palmer@...belt.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Emil Renner Berthing <emil.renner.berthing@...onical.com>,
	devicetree@...r.kernel.org, linux-serial@...r.kernel.org,
	linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/3] dt-bindings: serial: snps-dw-apb-uart: Add one
 more reset signal for StarFive JH7110 SoC

On Fri, May 17, 2024 at 02:17:11PM +0800, Hal Feng wrote:
> The UART of StarFive JH7110 has two reset signals.
> Both of them are necessary for JH7110 to initialize UART.
> 
> Signed-off-by: Hal Feng <hal.feng@...rfivetech.com>
> ---
>  .../bindings/serial/snps-dw-apb-uart.yaml          | 14 +++++++++++++-
>  1 file changed, 13 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
> index 1001d2a6ace8..a6396c5cbfb1 100644
> --- a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
> +++ b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
> @@ -13,6 +13,16 @@ allOf:
>    - $ref: serial.yaml#
>    - $ref: rs485.yaml#
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: starfive,jh7110-uart
> +    then:
> +      properties:
> +        resets:
> +          minItems: 2

else:
  properties:
    resets:
      maxItems: 1

Thanks,
Conor.

> +
>  properties:
>    compatible:
>      oneOf:
> @@ -48,6 +58,7 @@ properties:
>            - enum:
>                - starfive,jh7100-hsuart
>                - starfive,jh7100-uart
> +              - starfive,jh7110-uart
>            - const: snps,dw-apb-uart
>        - const: snps,dw-apb-uart
>  
> @@ -82,7 +93,8 @@ properties:
>      type: boolean
>  
>    resets:
> -    maxItems: 1
> +    minItems: 1
> +    maxItems: 2
>  
>    reg-shift: true
>  
> -- 
> 2.43.2
> 
> 
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv

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