linux-kernel - Re: [PATCH 0/3] Simple DVFS support for Allwinner A64 SoC

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Date:   Mon, 25 Sep 2017 18:12:09 +0800
From:   Icenowy Zheng <icenowy@...c.io>
To:     Maxime Ripard <maxime.ripard@...e-electrons.com>
CC:     Chen-Yu Tsai <wens@...e.org>, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH 0/3] Simple DVFS support for Allwinner A64 SoC



于 2017年9月25日 GMT+08:00 下午6:10:27, Maxime Ripard <maxime.ripard@...e-electrons.com> 写到:
>Hi,
>
>On Sat, Sep 23, 2017 at 12:15:28AM +0000, Icenowy Zheng wrote:
>> This patchset imports simple DVFS support for Allwinner A64 SoC.
>> 
>> As the thermal sensor driver is not yet implemented and some boards
>> have still no AXP PMIC support, now only two OPPs are present --
>> 648MHz@...4V and 816MHz@...V to prevent overheat or undervoltage.
>> 
>> PATCH 1 is a fix to the CCU driver of A64, and the remaining patches
>> set up the device tree bits of the DVFS on Pine64.
>
>How has this been tested?
>
>What tasks did you run, with what governor, etc...

I only tested manual frequency switching between 648MHz and
816MHz, and tested the PLL stuck issue by change the OPPs to
some random value.

>
>Thanks!
>Maxime