From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: Chen-Yu Tsai <wens@csie.org>
Cc: Stephan Roslen <stephan@roslen.de>,
Alessandro Zummo <a.zummo@towertech.it>,
Alexandre Belloni <alexandre.belloni@free-electrons.com>,
rtc-linux@googlegroups.com
Subject: [rtc-linux] Re: [PATCH] rtc: sunxi: use external oscillator
Date: Thu, 7 Jul 2016 08:42:20 +0200 [thread overview]
Message-ID: <20160707064220.GA5907@lukather> (raw)
In-Reply-To: <CAGb2v64Q6ERA2cHP48Wop5hdmKq0aYSUDfU6Q7qDGRJmk5G--g@mail.gmail.com>
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On Thu, Jul 07, 2016 at 12:53:29PM +0800, Chen-Yu Tsai wrote:
> >> In order to have that correctly propagated, you should register a new
> >> mux here in the clock framework, and have all the other clocks using
> >> that mux as a parent.
> >
> > I agree. Checking the diagram in subsection 1.5.2 of the A20
> > manual it seems, that LOSC can be a source for clocks like CPU and
> > some SoC busses. So my patch could indeed mess with the whole
> > clock tree.
>
> Within the current sunxi clk structure, the LOSC is registered as a fixed
> 32.768 KHz clk. So this patch actually makes things right.
On the condition that the driver gets loaded, which is not guaranteed.
Maxime
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next prev parent reply other threads:[~2016-07-07 6:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-06 8:43 [rtc-linux] [PATCH] rtc: sunxi: use external oscillator Stephan Roslen
2016-07-06 20:20 ` [rtc-linux] " Maxime Ripard
2016-07-07 4:50 ` Stephan Roslen
2016-07-07 4:53 ` Chen-Yu Tsai
2016-07-07 6:12 ` Stephan Roslen
2016-07-07 7:08 ` Maxime Ripard
2016-07-07 6:42 ` Maxime Ripard [this message]
2016-07-07 5:11 ` Stephan Roslen
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