linux-kernel - Re: [PATCH 1/6] dt-bindings: irqchip: armada-370-xp: Update information about MPIC SoC Error

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Date:   Mon, 16 May 2022 19:18:17 -0500
From:   Rob Herring <robh@...nel.org>
To:     Pali Rohár <pali@...nel.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Marek Behún <kabel@...nel.org>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/6] dt-bindings: irqchip: armada-370-xp: Update
 information about MPIC SoC Error

On Fri, May 06, 2022 at 03:40:24PM +0200, Pali Rohár wrote:
> Signed-off-by: Pali Rohár <pali@...nel.org>

Why do we need/want this change?

> ---
>  .../interrupt-controller/marvell,armada-370-xp-mpic.txt  | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/marvell,armada-370-xp-mpic.txt b/Documentation/devicetree/bindings/interrupt-controller/marvell,armada-370-xp-mpic.txt
> index 5fc03134a999..8cddbc16ddbd 100644
> --- a/Documentation/devicetree/bindings/interrupt-controller/marvell,armada-370-xp-mpic.txt
> +++ b/Documentation/devicetree/bindings/interrupt-controller/marvell,armada-370-xp-mpic.txt
> @@ -24,6 +24,11 @@ Optional properties:
>    connected as a slave to the Cortex-A9 GIC. The provided interrupt
>    indicate to which GIC interrupt the MPIC output is connected.
>  
> +Optional subnodes:
> +
> +- interrupt-controller@20 with interrupt-controller property for
> +  MPIC SoC Error IRQ controller
> +
>  Example:
>  
>          mpic: interrupt-controller@...20000 {
> @@ -35,4 +40,8 @@ Example:
>                msi-controller;
>                reg = <0xd0020a00 0x1d0>,
>                      <0xd0021070 0x58>;
> +              soc_err: interrupt-controller@20 {

unit address without 'reg' is an error.

> +                    interrupt-controller;
> +                    #interrupt-cells = <1>;
> +              };
>          };
> -- 
> 2.20.1
> 
>