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Message-ID: <20170628155956.GA5316@codeaurora.org>
Date: Wed, 28 Jun 2017 08:59:56 -0700
From: Stephen Boyd <sboyd@...eaurora.org>
To: Gabriel FERNANDEZ <gabriel.fernandez@...com>
Cc: Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Russell King <linux@...linux.org.uk>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre TORGUE <alexandre.torgue@...com>,
Michael Turquette <mturquette@...libre.com>,
Nicolas Pitre <nico@...aro.org>, Arnd Bergmann <arnd@...db.de>,
"daniel.thompson@...aro.org" <daniel.thompson@...aro.org>,
"andrea.merello@...il.com" <andrea.merello@...il.com>,
"radoslaw.pietrzyk@...il.com" <radoslaw.pietrzyk@...il.com>,
Lee Jones <lee.jones@...aro.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
Ludovic BARRE <ludovic.barre@...com>,
Olivier BIDEAU <olivier.bideau@...com>,
Amelie DELAUNAY <amelie.delaunay@...com>,
"gabriel.fernandez.st@...il.com" <gabriel.fernandez.st@...il.com>
Subject: Re: [RESEND PATCH v4] clk: stm32h7: Add stm32h743 clock driver
On 06/27, Gabriel FERNANDEZ wrote:
>
>
> On 06/22/2017 12:07 AM, Stephen Boyd wrote:
> > readl_poll_timeout?
> >
> if i use readl_poll_timeout (wich use 'ktime_get()') it can be
> operational only after the selection of clocksource ? (device_initcall).
> And then if a driver turn on a clock before, it could blocked the linux
> console ?
>
Ok. I wonder if we could add some sort of starting check to
readl_poll_timeout() that tests system_state for booting vs.
scheduling? That should be sufficient to handle this case?
--
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