linux-kernel - Re: [PATCH 7/8] arm64: dts: allwinner: Add Allwinner H616 .dtsi file

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Message-ID: <07e8d86e-0e1b-03d3-f43e-78e5bcbb53cc@sholland.org>
Date:   Wed, 2 Dec 2020 21:10:09 -0600
From:   Samuel Holland <samuel@...lland.org>
To:     Maxime Ripard <maxime@...no.tech>,
        Andre Przywara <andre.przywara@....com>
Cc:     devicetree@...r.kernel.org,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-sunxi@...glegroups.com, linux-kernel@...r.kernel.org,
        Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Icenowy Zheng <icenowy@...c.xyz>,
        Yangtao Li <frank@...winnertech.com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 7/8] arm64: dts: allwinner: Add Allwinner H616 .dtsi file

On 12/2/20 10:05 AM, Maxime Ripard wrote:
>> +	timer {
>> +		compatible = "arm,armv8-timer";
>> +		arm,no-tick-in-suspend;
> 
> This was tested with crust I assume?

No, there is no AR100 and supposedly no SRAM A2, so there is no place for crust
to run. I assume it was copied from the H6 .dtsi.

However, regardless of where the PSCI implementation runs, even if it's on CPUX,
it will likely disable OSC24M to save power. So the counter will stop, and the
property is appropriate to add.

Cheers,
Samuel