linux-kernel - Re: [PATCH v8 02/11] dt-bindings: rtc: sun6i: Add H616 compatible string

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Date:   Thu, 19 Aug 2021 09:56:30 +0200
From:   Maxime Ripard <maxime@...no.tech>
To:     Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc:     Andre Przywara <andre.przywara@....com>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Rob Herring <robh@...nel.org>, Icenowy Zheng <icenowy@...c.io>,
        Samuel Holland <samuel@...lland.org>,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...glegroups.com,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Ondrej Jirman <megous@...ous.com>, devicetree@...r.kernel.org,
        Alessandro Zummo <a.zummo@...ertech.it>,
        linux-rtc@...r.kernel.org
Subject: Re: [PATCH v8 02/11] dt-bindings: rtc: sun6i: Add H616 compatible
 string

Salut Alex,

On Tue, Aug 17, 2021 at 10:13:11AM +0200, Alexandre Belloni wrote:
> On 17/08/2021 09:38:10+0200, Maxime Ripard wrote:
> > > > It's not entirely clear to me what those clocks are about though. If we
> > > > look at the clock output in the user manual, it looks like there's only
> > > > two clocks that are actually being output: the 32k "fanout" clock and
> > > > the losc. What are the 3 you're talking about?]
> > > 
> > > I see three: the raw SYSTEM "CLK32K_LOSC", the RTC input + debounce
> > > clock (/32), and the multiplexed PAD.
> > 
> > But the input and debounce clock is only for the RTC itself right? So it
> > should be local to the driver and doesn't need to be made available to
> > the other drivers
> > 
> 
> Shouldn't they be exposed to be able to use assigned-clock?

I'm not sure we would even need that? If it's an internal clock to the
RTC, then we probably won't ever need to change it from the device tree?

Maxime

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