linux-kernel - Re: [PATCH 1/2] dt-bindings: firmware: Add bindings for Versal firmware

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Date:   Fri, 4 Oct 2019 18:18:25 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Jolly Shah <jolly.shah@...inx.com>
Cc:     ard.biesheuvel@...aro.org, mingo@...nel.org,
        matt@...eblueprint.co.uk, sudeep.holla@....com,
        hkallweit1@...il.com, keescook@...omium.org,
        dmitry.torokhov@...il.com, michal.simek@...inx.com,
        rajanv@...inx.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: firmware: Add bindings for Versal
 firmware

On Fri, Sep 27, 2019 at 12:40:05PM -0700, Jolly Shah wrote:
> ZynqMP firmware driver can be used for versal also.
> Add versal compatible string to zynqmp firmware driver
> doc.
> 
> Signed-off-by: Jolly Shah <jolly.shah@...inx.com>
> ---
>  .../bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt    | 16 +++++++++++++++-
>  1 file changed, 15 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt
> index a4fe136..18c3aea 100644
> --- a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt
> +++ b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt
> @@ -11,7 +11,9 @@ power management service, FPGA service and other platform management
>  services.
>  
>  Required properties:
> - - compatible:	Must contain:	"xlnx,zynqmp-firmware"
> + - compatible:	Must contain any of below:
> +		"xlnx,zynqmp-firmware" for Zynq Ultrascale+ MPSoC
> +		"xlnx,versal-firmware" for Versal
>   - method:	The method of calling the PM-API firmware layer.
>  		Permitted values are:
>  		  - "smc" : SMC #0, following the SMCCC
> @@ -21,6 +23,8 @@ Required properties:
>  Example
>  -------
>  
> +Zynq Ultrascale+ MPSoC
> +----------------------
>  firmware {
>  	zynqmp_firmware: zynqmp-firmware {
>  		compatible = "xlnx,zynqmp-firmware";
> @@ -28,3 +32,13 @@ firmware {
>  		...
>  	};
>  };
> +
> +Versal
> +------
> +firmware {
> +	versal_firmware: versal-firmware {
> +		compatible = "xlnx,versal-firmware";
> +		method = "smc";
> +		...
> +	};
> +};
> -- 
> 2.7.4
> 


For new dt bindings, don't you have to cc: the dt maintainers and
mailing list?  I can't take the patch until I get an ack from them.

thanks,

greg k-h