linux-kernel - Re: [PATCH 1/5] dt-bindings: arm: keystone: add ti,j7200-sci compatible

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Message-ID: <20231201074647.orwgcpo3a2cv46gg@excitable>
Date:   Fri, 1 Dec 2023 01:46:47 -0600
From:   Nishanth Menon <nm@...com>
To:     Thomas Richard <thomas.richard@...tlin.com>
CC:     Tero Kristo <kristo@...nel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <thomas.petazzoni@...tlin.com>, <gregory.clement@...tlin.com>,
        <u-kumar1@...com>
Subject: Re: [PATCH 1/5] dt-bindings: arm: keystone: add ti,j7200-sci
 compatible

On 16:31-20231129, Thomas Richard wrote:
> On j7200, during suspend to ram the soc is powered-off.
> At resume requested irqs shall be restored which is a different behavior
> from other platforms.
> 
> Signed-off-by: Thomas Richard <thomas.richard@...tlin.com>
> ---
>  Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml b/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
> index c24ad0968f3e..53d9c58dcd70 100644
> --- a/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
> +++ b/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
> @@ -40,6 +40,8 @@ properties:
>        - description: System controller on TI AM654 SoC
>          items:
>            - const: ti,am654-sci
> +      - description: System controller on TI J7200 SOC
> +          - const: ti,j7200-sci
>  
>    reg-names:
>      description: |
> 
> -- 
> 2.39.2
> 

Sorry, but I don't see why this is any different for all K3 devices.
they all follow the same pattern of usage.

Also, constraints you are speaking off is also present even for
am654-sci. just handle this in the driver.

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D