linux-kernel - Re: [PATCH 0/9] clocksource/drivers/clksrc-of: Improve error handling

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Date:	Wed, 8 Jun 2016 00:23:50 +0200
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH 0/9] clocksource/drivers/clksrc-of: Improve error handling

On 06/07/2016 11:54 AM, Geert Uytterhoeven wrote:
> Hi Daniel,

Hi Geert,

[ ... ]

> Using "earlycon keep_bootcon" on koelsch (this doesn't help on arm64)
> reveals it's stuck at:
>
>      clocksource_probe: no matching clocksources found
>      sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every
> 21474836475000000ns
>      Calibrating delay loop...
>

Ok, so the "renesas,cmt-48-gen2" is not impacted by the changes because 
it uses the platform approach. Very likely, the issue is coming from the 
arch_arm_timer failing somewhere.

Or I added a regression and the timer is wrongly returning an error, or 
the error is always there and now it is caught.

Can you give the traces before 'clocksource_probe: no matching 
clocksources found' ?

   -- Daniel

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