linux-kernel - [PATCH V3 0/2] PM / OPP: Parse opp-supported-hw/opp-<prop>-<name> bindings

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Date:	Wed,  9 Dec 2015 08:01:45 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Rafael Wysocki <rjw@...ysocki.net>
Cc:	linaro-kernel@...ts.linaro.org, linux-pm@...r.kernel.org,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH V3 0/2] PM / OPP: Parse opp-supported-hw/opp-<prop>-<name> bindings

Hi Rafael,

These patches parse the newly added opp-supported-hw/opp-<prop>-<name>
bindings.

Rebased over: Latest pm/linux-next
Tested-on: Exynos 5250, dual core A15.

V2->V3:
- Stephen had an interesting point to make for V2, as the patches
  created the dev_opp first and then updated it within the OPP-list
  lock. But a simultaneous reader of the dev_opp list need a rcu way of
  handling this.
- The big difference, why its not a problem here, is that the platform
  needs to call this routine before the OPPs are parsed from DT and the
  opp-list will be empty. And so no-readers.
- It wasn't guaranteed earlier, but now we have installed few WARN_ON()
  to make sure about that there are no OPPs while these routines are
  called.
- It should be pretty safe to get these merged now.
- Lee's work depends on this to be merged,
  http://marc.info/?l=linux-kernel&m=144958553611215&w=2

V1->V2:
- Fixed locking
- NUL terminate strings instead of sprintf
- Remove NULL checkers for the routines
- constify 'versions'
- s/EINVAL/EBUSY
- updated comments over routines
- Use of_property_read_u32_index() instead of allocating arrays
- remove dev_opp for failures

Viresh Kumar (2):
  PM / OPP: Parse 'opp-supported-hw' binding
  PM / OPP: Parse 'opp-<prop>-<name>' bindings

 drivers/base/power/opp/core.c | 313 ++++++++++++++++++++++++++++++++++++++++--
 drivers/base/power/opp/opp.h  |   7 +
 include/linux/pm_opp.h        |  22 +++
 3 files changed, 327 insertions(+), 15 deletions(-)

-- 
2.6.2.198.g614a2ac

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