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Date:   Mon, 15 Apr 2019 22:39:08 +0800
From:   Chen-Yu Tsai <>
To:     Maxime Ripard <>
Cc:     Alessandro Zummo <>,
        Alexandre Belloni <>,
        Rob Herring <>,
        Mark Rutland <>,,
        devicetree <>,
        linux-arm-kernel <>,
        linux-kernel <>,
        linux-sunxi <>
Subject: Re: [linux-sunxi] [PATCH 0/3] Add basic support for RTC on Allwinner
 H6 SoC

On Mon, Apr 15, 2019 at 10:33 PM Maxime Ripard
<> wrote:
> On Mon, Apr 15, 2019 at 04:22:22PM +0200, Ondřej Jirman wrote:
> > DT would still probably need a re-work in the future, if the PRCM clock
> > modeling the gate would be needed.
> Just reacting to that bit.
> I know we're pretty bad at this, and the documentation doesn't make it
> any easier, but if you have any idea of how it should be modelled
> next, then do that.

It seems to be just a clock gate, judging by previous (A80/A83T) SoCs.
However since we lack documents for the PRCM, we might need to poke
around to verify that it's actually there.

Or maybe we could ask Allwinner very specific questions, like:

  - Does the PRCM have a gate controlling XO?
  - Is it bit 2 in register 0x44 in the PRCM?


> There's no reason to push it to a later time, it makes everyone's life
> harder.
> Maxime
> --
> Maxime Ripard, Bootlin
> Embedded Linux and Kernel engineering
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