linux-kernel - Re: [PATCH V2 RESEND] dt-bindings: firmware: imx95-scmi: Allow linux, code for protocol@81

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Message-ID: <2793923.mvXUDI8C0e@steina-w>
Date: Thu, 24 Jul 2025 12:17:17 +0200
From: Alexander Stein <alexander.stein@...tq-group.com>
To: mathieu.poirier@...aro.org, Peng Fan <peng.fan@....com>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>,
 "open list:SYSTEM CONTROL MANAGEMENT INTERFACE (SCMI) i.MX..."
 <arm-scmi@...r.kernel.org>,
 "open list:SYSTEM CONTROL MANAGEMENT INTERFACE (SCMI) i.MX..."
 <imx@...ts.linux.dev>,
 "moderated list:SYSTEM CONTROL MANAGEMENT INTERFACE (SCMI) i.MX..."
 <linux-arm-kernel@...ts.infradead.org>,
 "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
 <devicetree@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>,
 Peng Fan <peng.fan@....com>
Subject: Re: [PATCH V2 RESEND] dt-bindings: firmware: imx95-scmi: Allow linux,
 code for protocol@81

Hi,

Am Freitag, 18. Juli 2025, 11:47:22 CEST schrieb Peng Fan:
> From: Alexander Stein <alexander.stein@...tq-group.com>
> 
> BBM protocol supports a single power button, supported by driver
> imx-sm-bbm-key.c. By default this is KEY_POWER, but can also be overwritten
> using linux,code. Add a reference to this schema and add linux,code as a
> supported property.
> 
> Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
> Signed-off-by: Alexander Stein <alexander.stein@...tq-group.com>
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
> 
> Resend [1].
> I not see a reason that why this patch could block i.MX95 remoteproc support[2].
> But to speed up the work, I took Alexander's work and resend it. Hope this
> could catch 6.17
> 
> [1]https://lore.kernel.org/imx/20250513-whimsical-almond-quoll-e3ad5b@sudeepholla/
> [2]https://lore.kernel.org/linux-remoteproc/PAXPR04MB8459A0F330554EB69E990E048850A@PAXPR04MB8459.eurprd04.prod.outlook.com/T/#t

Thanks for resending, I lost track of this patch and though it as applied already.

Best regards,
Alexander

> 
>  .../devicetree/bindings/firmware/nxp,imx95-scmi.yaml   | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml b/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml
> index 2bda2e0e1369..7a5a02da2719 100644
> --- a/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml
> +++ b/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml
> @@ -24,13 +24,19 @@ properties:
>          const: 0x80
>  
>    protocol@81:
> -    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
> -    unevaluatedProperties: false
> +    type: object
> +    allOf:
> +      - $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
> +      - $ref: /schemas/input/input.yaml#
> +    additionalProperties: false
>  
>      properties:
>        reg:
>          const: 0x81
>  
> +      linux,code:
> +        default: 116  # KEY_POWER
> +
>    protocol@82:
>      description:
>        SCMI CPU Protocol which allows an agent to start or stop a CPU. It is
> 


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