linux-kernel - Re: [PATCH 00/13] arm-cci: PMU driver updates for 4.6

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Message-ID: <CAOesGMhYP8tQXVYX70_U2EYnvOdTtE2xgDi77dKRkJsyjypgDw@mail.gmail.com>
Date:	Wed, 24 Feb 2016 10:46:09 -0800
From:	Olof Johansson <olof@...om.net>
To:	Will Deacon <will.deacon@....com>
Cc:	"Suzuki K. Poulose" <Suzuki.Poulose@....com>,
	Arnd Bergmann <arnd@...db.de>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"arm@...nel.org" <arm@...nel.org>,
	Punit Agrawal <punit.agrawal@....com>,
	Mark Rutland <mark.rutland@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 00/13] arm-cci: PMU driver updates for 4.6

On Wed, Feb 24, 2016 at 9:12 AM, Will Deacon <will.deacon@....com> wrote:
> On Wed, Feb 24, 2016 at 08:58:14AM -0800, Olof Johansson wrote:
>> On Tue, Feb 23, 2016 at 01:55:51PM +0000, Suzuki K. Poulose wrote:
>> > On 23/02/16 11:40, Will Deacon wrote:
>> > >On Tue, Feb 23, 2016 at 10:49:42AM +0000, Suzuki K Poulose wrote:
>> > >>Here are some fixes and updates for arm-cci pmu driver targeting v4.6,
>> > >>applies on top of v4.5-rc5.
>> > >>
>> > >>Highlights include :
>> > >>  - Support for CoreLink CCI-550 PMU
>> > >>  - Reliable writes to PMU Counter registers for CCI-500/550.
>> > >>
>> > >>All the patches have been Acked. Please let me know how this
>> > >>can be merged.
>> >
>> > >>
>> > >>  Documentation/devicetree/bindings/arm/cci.txt |    2 +
>> > >>  drivers/bus/Kconfig                           |   10 +-
>> > >>  drivers/bus/arm-cci.c                         |  612 +++++++++++++++++--------
>> > >>  3 files changed, 427 insertions(+), 197 deletions(-)
>> > >
>> > >How do you plan to merge this? I can take it all onto a branch for
>> > >arm-soc, or I can include it on my perf/updates branch, or ...?
>> >
>> > Arnd, Olof,
>> >
>> > What do you think would be the best route ?
>>
>> Traditionally we've been picking these up in arm-soc in our drivers branch.
>>
>> Will, unless you want them in your tree for some reason that's what I'll do
>> here as well.
>
> Just that I already have some CPU PMU patches that I planned to send, so
> I could bundle these in with those if necessary. I have no preference
> either way though, as long as they get queued someplace.

Ok, I'm alright with you queueing these if that makes it easier. Feel
free to add:

Acked-by: Olof Johansson <olof@...om.net>

Only concern is if we cause confusion on where people should send
these patches down the road, but there aren't that many authors of
them so it's not a huge problem.

> At some point, those drivers should be largely moved from drivers/bus/
> to drivers/perf/, but that's a separate issue.

And with a maintainer on that, that'd resolve the "where do I send
this" issue. The maintainer, of course, needs to know where to feed
things next, but that's easier to solve.


-Olof