Ulf Hansson [off-list ref] writes:

On 17 December 2015 at 01:26, Eric Anholt [off-list ref] wrote:

quoted

From: Alexander Aring <alex.aring@gmail.com>

This patch adds support for several power domains on Raspberry Pi,
including USB (so it can be enabled even if the bootloader didn't do
it), and graphics.

This patch is the combined work of Eric Anholt (who wrote USB support
inside of the Raspberry Pi firmware driver, and wrote the non-USB
domain support) and Alexander Aring (who separated the original USB
work out from the firmware driver).

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Eric Anholt <redacted>
---

v2: Add support for power domains other than USB, using the new
    firmware interface, reword commit message (changes by Eric)

v3: Restructure as a builtin driver, and drop
    of_genpd_add_provider_onecell error handling to avoid
    pm_genpd_exit() dependency until that API can be settled.  Clean
    up copyright header, add missing ISP initialization, and fix typo
    in transposer's name.

v4: Move to drivers/soc/bcm/, move include to dt-bindings/soc/, set up
    Makefile for the drivers/soc/bcm following clk/'s model.

 drivers/soc/Kconfig                         |   1 +
 drivers/soc/Makefile                        |   1 +
 drivers/soc/bcm/Kconfig                     |   9 +
 drivers/soc/bcm/Makefile                    |   1 +
 drivers/soc/bcm/raspberrypi-power.c         | 247 ++++++++++++++++++++++++++++
 include/dt-bindings/soc/raspberrypi-power.h |  41 +++++

There is currently a directory which I think may be better.
include/dt-bindings/power/*

Besides this nitpick, I think this looks good. You may add my:

Reviewed-by: Ulf Hansson <redacted>

Thanks!  I'll be sending my pull requests with the two r-bs added and
these nitpicks fixed.
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