linux-kernel - [PATCH V2 0/3] Add DT Binding for Power-Supply power-supplies property

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Date:	Mon, 1 Apr 2013 17:45:52 -0400
From:	Rhyland Klein <rklein@...dia.com>
To:	Anton Vorontsov <cbou@...l.ru>,
	Grant Likely <grant.likely@...retlab.ca>
CC:	David Woodhouse <dwmw2@...radead.org>,
	<linux-kernel@...r.kernel.org>,
	<devicetree-discuss@...ts.ozlabs.org>,
	<linux-tegra@...r.kernel.org>, Rhyland Klein <rklein@...dia.com>
Subject: [PATCH V2 0/3] Add DT Binding for Power-Supply power-supplies property

This series defines a common way for devicetree initialized
power_supplies to define their relationships between chargers and
supplicants.

This series adds a supplied_from array to complement the supplied_to
array and to allow supplies to define the list of supplies which
supply them.

Then once this property is supported, we can use a new property for
devicetree to define the relationships between nodes, and read in this
property to generate the supplied_from list.

With this logic in place, all drivers need to do to add support for
this mechanism, is to store their device tree node in the power_supply
struct. They should also handle EPROBE_DEFER properly.

Changes since:
v2:
 - Changed __power_supply_is_supplied_by to a boolean function and
   corrected return paths around it
 - took loop invariant tests out of loops
 - Fixed multiline comment style
 - fixed up return paths around power_supplies_check_supplies

RFC v2:
 - Changed to official Patch set rather than RFC
 - defined supplied_from char ** array rather than complicated
   struct device_node related array

RFC v1:
 - Inverted the logic so that supplies (batteries) contain a list of
   the supplies (chargers) which supply them.

Rhyland Klein (3):
  power_supply: Define Binding for power-supplies
  power: power_supply: Add core support for supplied_from
  power: power_supply_core: Add support for supplied_from

 .../bindings/power_supply/power_supply.txt         |   23 +++
 drivers/power/power_supply_core.c                  |  187 ++++++++++++++++++--
 include/linux/power_supply.h                       |    6 +
 3 files changed, 203 insertions(+), 13 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/power_supply/power_supply.txt

-- 
1.7.9.5

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