linux-kernel - Re: [PATCH v4 04/28] clocksource: Add Owl timer

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Message-ID: <20170621115727.GB2479@mai>
Date:   Wed, 21 Jun 2017 13:57:27 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Andreas Färber <afaerber@...e.de>
Cc:     John Stultz <john.stultz@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>, support@...aker.org,
        张天益 <tyzhang@...ions-semi.com>,
        96boards@...obotics.com, linux-kernel@...r.kernel.org,
        Thomas Liau <thomas.liau@...ions-semi.com>,
        mp-cs@...ions-semi.com,
        刘炜 <liuwei@...ions-semi.com>,
        linux-arm-kernel@...ts.infradead.org,
        张东风 <zhangdf@...ions-semi.com>,
        Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
        Stephen Boyd <sboyd@...eaurora.org>
Subject: Re: [PATCH v4 04/28] clocksource: Add Owl timer

On Mon, Jun 19, 2017 at 04:31:18PM +0200, Andreas Färber wrote:
> Am 19.06.2017 um 15:53 schrieb Daniel Lezcano:
> > On 18/06/2017 22:43, Andreas Färber wrote:
> >> Am 06.06.2017 um 18:33 schrieb Daniel Lezcano:
> >>> On Tue, Jun 06, 2017 at 02:54:02AM +0200, Andreas Färber wrote:
> >>>> The Actions Semi S500 SoC provides four timers, 2Hz0/1 and 32-bit TIMER0/1.
> >>>>
> >>>> Use TIMER0 as clocksource and TIMER1 as clockevents.
> >>>>
> >>>> Based on LeMaker linux-actions tree.
> >>>>
> >>>> An S500 datasheet can be found on the LeMaker Guitar pages:
> >>>> http://www.lemaker.org/product-guitar-download-29.html
> >>>>
> >>>> Signed-off-by: Andreas Färber <afaerber@...e.de>
> >>>
> >>> Acked-by: Daniel Lezcano <daniel.lezcano@...aro.org>
> >>
> >> Thanks. It seems this is not going through a central clocksource tree,
> >> so I'm applying it to a new linux-actions.git v4.13/soc branch:
> >>
> >> https://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions.git/log/?h=v4.13/soc
> >>
> >> Let me know if you intend to take it through some other tree instead.
> > 
> > No, it is ok. In the future, submit for the clocksource tree
> > (tip/timers/core).
> 
> Hm, I did see that tree in MAINTAINERS, but it specifically said
> "CLOCKSOURCE CORE" and it does not have any
> F:	drivers/clocksource/
> or
> F:	Documentation/devicetree/bindings/timer/
> entries, therefore I added the files to Actions like other SoCs did...

You probably missed the entry:

CLOCKSOURCE, CLOCKEVENT DRIVERS
M:      Daniel Lezcano <daniel.lezcano@...aro.org>
M:      Thomas Gleixner <tglx@...utronix.de>
L:      linux-kernel@...r.kernel.org
T:      git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
S:      Supported
F:      drivers/clocksource
 
> I can easily unqueue the patches - what does submit for the clocksource
> tree mean? Just CC the two maintainers on resend or anything else?
> I intend to rename my branch to v4.13/drivers on Olof's feedback anyway.

I could have directly picked the clocksource/clockevent changes to my tree but
I decided to let them go through the ARM's tree. I meant, as the patches are
acked (by me), it is ok they are merged through arm's tree. From my POV, it is
somewho acceptable when a new SoC support is added.

In the future, when the clockevent/clocksource drivers are merged and if there
are more changes, at this time, send the patches to Thomas and me as stated in
the maintainer file entry, I will take care of them.

IOW, everything is fine ;)

  -- Daniel

-- 

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