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From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org,
	linux@maxim.org.za, nicolas.ferre@atmel.com,
	plagnioj@jcrosoft.com, nsekhar@ti.com,
	khilman@deeprootsystems.com, kernel@pengutronix.de,
	shawn.guo@linaro.org, tony@atomide.com, ben-linux@fluff.org,
	kgene.kim@samsung.com, horms@verge.net.au, magnus.damm@gmail.com,
	swarren@wwwdotorg.org, srinidhi.kasagar@stericsson.com,
	linus.walleij@linaro.org, rjw@sisk.pl, kyungmin.park@samsung.com
Subject: Re: [PATCH 0/8] ARM: move cpuidle drivers to drivers/cpuidle/
Date: Wed, 26 Jun 2013 14:22:46 +0200	[thread overview]
Message-ID: <5859839.2xKkDrLODE@amdc1032> (raw)
In-Reply-To: <51CAC9A9.5070906@linaro.org>


Hi,

On Wednesday, June 26, 2013 12:59:53 PM Daniel Lezcano wrote:
> On 06/26/2013 12:15 PM, Bartlomiej Zolnierkiewicz wrote:
> > Hi,
> > 
> > This patchset moves ARM cpuidle drivers to drivers/cpuidle/ to make
> > code match new driver placement rules (per commit a8e39c3 "cpuidle: add
> > maintainer entry").
> 
> I second this initiative but as stated in a previous email, a bit of
> code cleanup, consolidation and encapsulation should be done before.
> 
> Again, from my POV, it is worth to do that but we have to split the pm
> code from the driver.

OK, I'll look into separating the pm code from the drivers.  However it
seems that patch #2 (for davinci) can be applied as it is.

> Please review some patches I sent recently to split this code and
> comment them. Otherwise, we will collide on this work.
> 
> All the patches sent [1] was to unify the code to make the drivers as
> unified as possible to converge to the same code pattern and to
> facilitate the factoring out.

I've looked at the patches ([1] and at91 ones) and they look fine to me.

I don't think that there is currently a risk of colliding on this work
(except at91 case) as your patches (except at91 ones) are already merged
in upstream or linux-next branch of linux-pm tree (which is included in
linux-next tree which I based my patches on). I'm subscribed to linux-pm
mailing list now but please cc: me on your future ARM cpuidle changes
(thanks!).

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

> Thanks
>   -- Daniel
> 
> [1]
> https://git.kernel.org/cgit/linux/kernel/git/rafael/linux-pm.git/log/?h=linux-next&qt=author&q=daniel.lezcano%40linaro.org
> 
> > [ Please note that movement of Samsung EXYNOS cpuidle driver is handled
> >   in separate patchset since it needs some other changes applied first. ]
> > 
> > Patches are based on linux-next (next-20130624) and are compile tested
> > only.  If agreed they all should probably go together through one tree
> > (linux-pm or arm-soc) since they all modify drivers/cpuidle/Makefile.
> > 
> > PS It seems that majority of cpuidle drivers is not used by default
> > (CONFIG_CPU_IDLE is not turned on in corresponding defconfigs). The only
> > exceptions are shmobile (kota2_defconfig) and tegra (tegra_defconfig).
> > This is probably also something that needs updating.
> > 
> > Best regards,
> > --
> > Bartlomiej Zolnierkiewicz
> > Samsung R&D Institute Poland
> > Samsung Electronics
> > 
> > 
> > Bartlomiej Zolnierkiewicz (8):
> >   ARM: at91: move cpuidle driver to drivers/cpuidle/
> >   ARM: davinci: move cpuidle driver to drivers/cpuidle/
> >   ARM: imx: move cpuidle drivers to drivers/cpuidle/
> >   ARM: OMAP: move cpuidle drivers to drivers/cpuidle/
> >   ARM: S3C64XX: move cpuidle driver to drivers/cpuidle/
> >   ARM: shmobile: move cpuidle driver to drivers/cpuidle/
> >   ARM: tegra: move cpuidle drivers to drivers/cpuidle/
> >   ARM: ux500: move cpuidle drivers to drivers/cpuidle/
> > 
> >  arch/arm/mach-at91/Makefile            |   1 -
> >  arch/arm/mach-at91/cpuidle.c           |  68 -------
> >  arch/arm/mach-davinci/Makefile         |   1 -
> >  arch/arm/mach-davinci/cpuidle.c        | 105 ----------
> >  arch/arm/mach-imx/Makefile             |   5 -
> >  arch/arm/mach-imx/cpuidle-imx5.c       |  37 ----
> >  arch/arm/mach-imx/cpuidle-imx6q.c      |  75 -------
> >  arch/arm/mach-omap2/Makefile           |   5 -
> >  arch/arm/mach-omap2/cpuidle34xx.c      | 344 ---------------------------------
> >  arch/arm/mach-omap2/cpuidle44xx.c      | 217 ---------------------
> >  arch/arm/mach-s3c64xx/Makefile         |   1 -
> >  arch/arm/mach-s3c64xx/cpuidle.c        |  63 ------
> >  arch/arm/mach-shmobile/Makefile        |   1 -
> >  arch/arm/mach-shmobile/cpuidle.c       |  37 ----
> >  arch/arm/mach-tegra/Makefile           |   9 -
> >  arch/arm/mach-tegra/cpuidle-tegra114.c |  35 ----
> >  arch/arm/mach-tegra/cpuidle-tegra20.c  | 217 ---------------------
> >  arch/arm/mach-tegra/cpuidle-tegra30.c  | 149 --------------
> >  arch/arm/mach-ux500/Makefile           |   1 -
> >  arch/arm/mach-ux500/cpuidle.c          | 128 ------------
> >  drivers/cpuidle/Makefile               |  42 ++++
> >  drivers/cpuidle/cpuidle-at91.c         |  68 +++++++
> >  drivers/cpuidle/cpuidle-davinci.c      | 104 ++++++++++
> >  drivers/cpuidle/cpuidle-imx5.c         |  37 ++++
> >  drivers/cpuidle/cpuidle-imx6q.c        |  74 +++++++
> >  drivers/cpuidle/cpuidle-omap34xx.c     | 342 ++++++++++++++++++++++++++++++++
> >  drivers/cpuidle/cpuidle-omap44xx.c     | 216 +++++++++++++++++++++
> >  drivers/cpuidle/cpuidle-s3c64xx.c      |  62 ++++++
> >  drivers/cpuidle/cpuidle-shmobile.c     |  37 ++++
> >  drivers/cpuidle/cpuidle-tegra114.c     |  35 ++++
> >  drivers/cpuidle/cpuidle-tegra20.c      | 217 +++++++++++++++++++++
> >  drivers/cpuidle/cpuidle-tegra30.c      | 149 ++++++++++++++
> >  drivers/cpuidle/cpuidle-ux500.c        | 128 ++++++++++++
> >  33 files changed, 1511 insertions(+), 1499 deletions(-)
> >  delete mode 100644 arch/arm/mach-at91/cpuidle.c
> >  delete mode 100644 arch/arm/mach-davinci/cpuidle.c
> >  delete mode 100644 arch/arm/mach-imx/cpuidle-imx5.c
> >  delete mode 100644 arch/arm/mach-imx/cpuidle-imx6q.c
> >  delete mode 100644 arch/arm/mach-omap2/cpuidle34xx.c
> >  delete mode 100644 arch/arm/mach-omap2/cpuidle44xx.c
> >  delete mode 100644 arch/arm/mach-s3c64xx/cpuidle.c
> >  delete mode 100644 arch/arm/mach-shmobile/cpuidle.c
> >  delete mode 100644 arch/arm/mach-tegra/cpuidle-tegra114.c
> >  delete mode 100644 arch/arm/mach-tegra/cpuidle-tegra20.c
> >  delete mode 100644 arch/arm/mach-tegra/cpuidle-tegra30.c
> >  delete mode 100644 arch/arm/mach-ux500/cpuidle.c
> >  create mode 100644 drivers/cpuidle/cpuidle-at91.c
> >  create mode 100644 drivers/cpuidle/cpuidle-davinci.c
> >  create mode 100644 drivers/cpuidle/cpuidle-imx5.c
> >  create mode 100644 drivers/cpuidle/cpuidle-imx6q.c
> >  create mode 100644 drivers/cpuidle/cpuidle-omap34xx.c
> >  create mode 100644 drivers/cpuidle/cpuidle-omap44xx.c
> >  create mode 100644 drivers/cpuidle/cpuidle-s3c64xx.c
> >  create mode 100644 drivers/cpuidle/cpuidle-shmobile.c
> >  create mode 100644 drivers/cpuidle/cpuidle-tegra114.c
> >  create mode 100644 drivers/cpuidle/cpuidle-tegra20.c
> >  create mode 100644 drivers/cpuidle/cpuidle-tegra30.c
> >  create mode 100644 drivers/cpuidle/cpuidle-ux500.c


  reply	other threads:[~2013-06-26 12:22 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-26 10:15 [PATCH 0/8] ARM: move cpuidle drivers to drivers/cpuidle/ Bartlomiej Zolnierkiewicz
2013-06-26 10:15 ` [PATCH 1/8] ARM: at91: move cpuidle driver " Bartlomiej Zolnierkiewicz
2013-06-26 10:15 ` [PATCH 2/8] ARM: davinci: " Bartlomiej Zolnierkiewicz
2013-06-26 10:15 ` [PATCH 3/8] ARM: imx: move cpuidle drivers " Bartlomiej Zolnierkiewicz
2013-06-26 10:15 ` [PATCH 4/8] ARM: OMAP: " Bartlomiej Zolnierkiewicz
2013-06-27  8:06   ` Tony Lindgren
2013-06-27 17:25     ` Kevin Hilman
2013-06-27 15:36   ` Santosh Shilimkar
2013-06-26 10:15 ` [PATCH 5/8] ARM: S3C64XX: move cpuidle driver " Bartlomiej Zolnierkiewicz
2013-07-22  3:33   ` Kukjin Kim
2013-06-26 10:15 ` [PATCH 6/8] ARM: shmobile: " Bartlomiej Zolnierkiewicz
2013-06-26 10:15 ` [PATCH 7/8] ARM: tegra: move cpuidle drivers " Bartlomiej Zolnierkiewicz
2013-06-26 18:24   ` Stephen Warren
2013-06-26 10:15 ` [PATCH 8/8] ARM: ux500: " Bartlomiej Zolnierkiewicz
2013-06-26 20:42   ` Linus Walleij
2013-06-26 21:28     ` Arnd Bergmann
2013-06-26 10:59 ` [PATCH 0/8] ARM: " Daniel Lezcano
2013-06-26 12:22   ` Bartlomiej Zolnierkiewicz [this message]
2013-06-26 13:05     ` Daniel Lezcano
2013-06-26 14:40       ` Bartlomiej Zolnierkiewicz
2013-06-26 16:57         ` Daniel Lezcano

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