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Date: Thu, 29 Jun 2017 17:20:08 -0700
From: Stephen Boyd <sboyd@codeaurora.org>
To: Gabriel FERNANDEZ <gabriel.fernandez@st.com>
Cc: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
        Russell King <linux@armlinux.org.uk>,
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        Olivier BIDEAU <olivier.bideau@st.com>,
        Amelie DELAUNAY <amelie.delaunay@st.com>,
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Subject: Re: [RESEND PATCH v4] clk: stm32h7: Add stm32h743 clock driver
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On 06/29, Gabriel FERNANDEZ wrote:
> 
> 
> On 06/28/2017 05:59 PM, Stephen Boyd wrote:
> > 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?
> >
> Oops i think i understood my problem...
> i used readl_poll_timeout in atomic context.
> I have to move my code in the .prepare ops.
> 
> If you are ok with that i will send a v5
> 

There's readl_poll_timeout_atomic() for those modes.

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