linux-kernel - Re: [PATCH] dt-bindings: Add an enable method to RISC-V

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Message-ID: <20171120214709.oss7rrtijw2cyjmw@rob-hp-laptop>
Date:   Mon, 20 Nov 2017 15:47:09 -0600
From:   Rob Herring <robh@...nel.org>
To:     Palmer Dabbelt <palmer@...ive.com>
Cc:     mark.rutland@....com, devicetree@...r.kernel.org,
        patches@...ups.riscv.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: Add an enable method to RISC-V

On Mon, Nov 20, 2017 at 11:50:22AM -0800, Palmer Dabbelt wrote:
> RISC-V doesn't currently specify a mechanism for enabling or disabling
> CPUs.  Instead, we assume that all CPUs are enabled on boot, and if
> someone wants to save power we instead put a CPU to sleep via a WFI
> loop.
> 
> This patch adds "enable-method" to the RISC-V CPU binding, which
> currently only has the value "none".  This allows us to change the
> enable method in the future.

I think "none" should just be no cpu-enable-method property.

Rob