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From: Chen-Yu Tsai <wens@csie.org>
To: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	linux-rtc@vger.kernel.org,
	devicetree <devicetree@vger.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	linux-sunxi <linux-sunxi@googlegroups.com>
Subject: Re: [linux-sunxi] [PATCH 0/3] Add basic support for RTC on Allwinner H6 SoC
Date: Mon, 15 Apr 2019 22:39:08 +0800
Message-ID: <CAGb2v66dY40zkQcVcyORZ-7RAkC1ATB9fTyRzabf-NyDKAustw@mail.gmail.com> (raw)
In-Reply-To: <20190415143304.dxpmyh73qxzaybtc@flea>

On Mon, Apr 15, 2019 at 10:33 PM Maxime Ripard
<maxime.ripard@bootlin.com> 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?

ChenYu

> 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
> https://bootlin.com
>
> --
> You received this message because you are subscribed to the Google Groups "linux-sunxi" group.
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  reply index

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-12 12:07 megous
2019-04-12 12:07 ` [PATCH 1/3] dt-bindings: Add compatible for H6 RTC megous
2019-08-05 10:16   ` [linux-sunxi] " Chen-Yu Tsai
2019-04-12 12:07 ` [PATCH 2/3] rtc: sun6i: Add support " megous
2019-08-05 10:16   ` [linux-sunxi] " Chen-Yu Tsai
2019-08-05 10:20     ` Ondřej Jirman
2019-08-05 10:45     ` Ondřej Jirman
2019-08-05 10:54       ` Chen-Yu Tsai
2019-08-05 11:10         ` Ondřej Jirman
2019-08-05 11:21           ` Chen-Yu Tsai
2019-08-05 12:16           ` Clément Péron
2019-04-12 12:07 ` [PATCH 3/3] arm64: dts: sun50i-h6: Add support for RTC and fix the clock tree megous
2019-04-15  8:18 ` [linux-sunxi] [PATCH 0/3] Add basic support for RTC on Allwinner H6 SoC Chen-Yu Tsai
2019-04-15 14:22   ` Ondřej Jirman
2019-04-15 14:33     ` Maxime Ripard
2019-04-15 14:39       ` Chen-Yu Tsai [this message]
2019-04-15 14:35     ` Chen-Yu Tsai
2019-04-15 15:17       ` Ondřej Jirman
2019-08-06 18:30   ` Ondřej Jirman
2019-08-06 22:27     ` Ondřej Jirman
2019-08-07 10:55     ` Alexandre Belloni
2019-08-08  5:48       ` Chen-Yu Tsai
2019-08-08 12:12       ` Ondřej Jirman
2019-08-08 23:39         ` Alexandre Belloni
2019-08-09  9:16           ` Ondřej Jirman

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