linux-kernel - [PATCH v4 0/3] PM / clock_ops: add pm_clk_add

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Message-ID: <1415281862-23764-1-git-send-email-grygorii.strashko@ti.com>
Date:	Thu, 6 Nov 2014 15:50:59 +0200
From:	Grygorii Strashko <grygorii.strashko@...com>
To:	<ssantosh@...nel.org>, "Rafael J. Wysocki" <rjw@...ysocki.net>,
	<khilman@...aro.org>
CC:	<linux-pm@...r.kernel.org>, Rob Herring <robh+dt@...nel.org>,
	<grant.likely@...retlab.ca>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	Grygorii Strashko <grygorii.strashko@...com>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: [PATCH v4 0/3] PM / clock_ops: add pm_clk_add_clk() 

Hi Santosh, Kevin,

I've separated these patches in standalone series as requested by
Santosh (https://lkml.org/lkml/2014/10/24/591). Also, I've kept
versioning of patches from original series and therefor this
is v4 of patches.

The patch 1 was originally introduced in [1] (Apr 2014) and it allows
to fill per-device list of clock from DT.

The patch 2 is small clean up needed for patch 3.

The patch 3 was created as was discussed in v2 and first introduced in v3.
Here I marked it as RFC, because I've found some disadvantages of such
approach - see comments to the patch itself.

Finally, this series is needed to enable to enable Runtime
PM for Keystone 2, but honestly I need only patch 1.

RFC version of patches can be found at [2].

Changes in v4:
 - pm_clk_add_clk() changed to get reference on clock as
   requested by Dmitry Torokhov (see v3). Now the caller has to
   use clk_put() on clock pointer when done.

Changes in v3:
 - handling of the case when !CONFIG_PM_RUNTIME has been
   moved in PM clock framework.

Changes in v2:
- minor comments applied and rebased on top of Linux 3.18-rc1.

Links on previous versions:
v3:  https://lkml.org/lkml/2014/10/23/342
v2:  https://lkml.org/lkml/2014/10/20/248
v1:  https://lkml.org/lkml/2014/9/29/382

[1] "[PATCH/RFC 0/4] of: Register clocks for Runtime PM with PM core"
  https://lkml.org/lkml/2014/4/24/1118

[2] "[RFC PATCH 0/4] ARM: keystone: pm: switch to use generic pm domains"
  https://lkml.org/lkml/2014/9/25/364

CC: Santosh Shilimkar <ssantosh@...nel.org>
CC: Kevin Hilman <khilman@...aro.org>
CC: Ulf Hansson <ulf.hansson@...aro.org>
CC: Geert Uytterhoeven <geert@...ux-m68k.org>
CC: Dmitry Torokhov <dmitry.torokhov@...il.com>

Geert Uytterhoeven (1):
  PM / clock_ops: Add pm_clk_add_clk()

Grygorii Strashko (2):
  PM / clock_ops: make __pm_clk_enable more generic
  PM / clock_ops: add and enable clocks always if !CONFIG_PM_RUNTIME

 drivers/base/power/clock_ops.c | 89 +++++++++++++++++++++++++++---------------
 include/linux/pm_clock.h       |  8 ++++
 2 files changed, 65 insertions(+), 32 deletions(-)

-- 
1.9.1

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