linux-kernel - Re: [PATCH 10/12] misc: Flexcard basic timestamp counter support

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Message-ID: <4863466.dVh2k2nQnx@wuerfel>
Date:   Wed, 14 Dec 2016 09:46:49 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Holger Dengler <dengler@...utronix.de>
Cc:     Lee Jones <lee.jones@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Vinod Koul <vinod.koul@...el.com>,
        linux-kernel@...r.kernel.org, dmaengine@...r.kernel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Sebastian Siewior <bigeasy@...utronix.de>,
        Juergen Bubeck <bubeck@...ug.com>,
        Peter Mahler <mahler@...ug.com>,
        Benedikt Spranger <b.spranger@...utronix.de>
Subject: Re: [PATCH 10/12] misc: Flexcard basic timestamp counter support

On Wednesday, December 14, 2016 1:11:51 AM CET Holger Dengler wrote:
> The Eberspaecher Flexcard PMC II offers a Flexray network synchronized
> counter with a selectable resolution of 1us, 100ns or 10ns. Add basic
> support for the timestamp counter with 1us resolution, which is the
> standard Flexray bus resolution.
> 
> Signed-off-by: Benedikt Spranger <b.spranger@...utronix.de>
> Signed-off-by: Holger Dengler <dengler@...utronix.de>
> cc: Arnd Bergmann <arnd@...db.de>
> cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> 

Have you tried fitting this in the drivers/ptp/ framework rather
than having your own posix clock for it?

No idea if that works, it's just a thought I had.

	Arnd