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References: <20211011132431.2792797-1-guoren@kernel.org> <20211011132431.2792797-2-guoren@kernel.org>
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From:   Anup Patel <anup@brainfault.org>
Date:   Mon, 11 Oct 2021 20:22:25 +0530
Message-ID: <CAAhSdy29awBS7cATQjGvP1nqC_aYJgKvAQBxMxvhJAOK7VPr9A@mail.gmail.com>
Subject: Re: [PATCH 2/2] dt-bindings: update riscv plic claim-mask-support property
To:     Guo Ren <guoren@kernel.org>
Cc:     Atish Patra <atish.patra@wdc.com>, Marc Zyngier <maz@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        "linux-kernel@vger.kernel.org List" <linux-kernel@vger.kernel.org>,
        linux-riscv <linux-riscv@lists.infradead.org>,
        Guo Ren <guoren@linux.alibaba.com>,
        Rob Herring <robh@kernel.org>,
        Palmer Dabbelt <palmerdabbelt@google.com>
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On Mon, Oct 11, 2021 at 6:54 PM <guoren@kernel.org> wrote:
>
> From: Guo Ren <guoren@linux.alibaba.com>
>
> Add claim-mask-support to control riscv,plic don't call
> unnecessary mask/unmask operations.
>
> Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
> Cc: Rob Herring <robh@kernel.org>
> Cc: Palmer Dabbelt <palmerdabbelt@google.com>
> Cc: Anup Patel <anup@brainfault.org>
> Cc: Atish Patra <atish.patra@wdc.com>
> ---
>  .../bindings/interrupt-controller/sifive,plic-1.0.0.yaml        | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
> index 08d5a57ce00f..f32c1792604c 100644
> --- a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
> +++ b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
> @@ -71,6 +71,8 @@ properties:
>      description:
>        Specifies how many external interrupts are supported by this controller.
>
> +  claim-mask-support: true
> +

This DT property does not describe HW in any way, rather it enable/disable
a SW behaviour in the driver. IMO, this DT property should not be added.

Regards,
Anup

>  required:
>    - compatible
>    - '#address-cells'
> --
> 2.25.1
>