linux-kernel - Re: [PATCH v2 4/4] dt-bindings/irqchip/mbigen: add example of MBIGEN generate SPIs

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Date:   Wed, 9 Jan 2019 10:48:27 +0000
From:   Marc Zyngier <marc.zyngier@....com>
To:     Yang Yingliang <yangyingliang@...wei.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     tglx@...utronix.de, guohanjun@...wei.com,
        Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH v2 4/4] dt-bindings/irqchip/mbigen: add example of MBIGEN
 generate SPIs

On 26/10/2018 08:51, Yang Yingliang wrote:
> Now MBIGEN can support to generate SPIs by writing
> GICD_SETSPIR. Add dt example to help document.
> 
> Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
> ---
>  .../interrupt-controller/hisilicon,mbigen-v2.txt        | 17 ++++++++++++++++-
>  1 file changed, 16 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/hisilicon,mbigen-v2.txt b/Documentation/devicetree/bindings/interrupt-controller/hisilicon,mbigen-v2.txt
> index a6813a0..298c033 100644
> --- a/Documentation/devicetree/bindings/interrupt-controller/hisilicon,mbigen-v2.txt
> +++ b/Documentation/devicetree/bindings/interrupt-controller/hisilicon,mbigen-v2.txt
> @@ -10,7 +10,7 @@ Hisilicon designed mbigen to collect and generate interrupt.
>  
>  
>  Non-pci devices can connect to mbigen and generate the
> -interrupt by writing ITS register.
> +interrupt by writing GICD or ITS register.
>  
>  The mbigen chip and devices connect to mbigen have the following properties:
>  
> @@ -64,6 +64,13 @@ Examples:
>  				num-pins = <2>;
>  				#interrupt-cells = <2>;
>  			};
> +
> +			mbigen_spi_example:spi_example {
> +				interrupt-controller;
> +				msi-parent = <&gic>;
> +				num-pins = <2>;
> +				#interrupt-cells = <2>;
> +			};
>  	};
>  
>  Devices connect to mbigen required properties:
> @@ -82,3 +89,11 @@ Examples:
>  		interrupts =	<656 1>,
>  				<657 1>;
>  	};
> +
> +	spi_example: spi0@0 {
> +		compatible = "spi,example";
> +		reg = <0 0 0 0>;
> +		interrupt-parent = <&mbigen_spi_example>;
> +		interrupts = <13 4>,
> +			     <14 4>;
> +	};
> 

I'd like an Ack of some sort from one of the DT maintainer. Rob?

Thanks,
	
	M.
-- 
Jazz is not dead. It just smells funny...