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Re: [PATCH v3 2/4] ARM: bcm2835: add rpi power domain driver

From Eric Anholt <eric@anholt.net>
Newsgroups linux.kernel
Subject Re: [PATCH v3 2/4] ARM: bcm2835: add rpi power domain driver
Date 2015-12-16 01:00 +0100
Message-ID <qG7FE-2zx-1@gated-at.bofh.it> (permalink)
References <qG5DP-1iE-11@gated-at.bofh.it> <qG5DQ-1iE-13@gated-at.bofh.it> <qG6gy-1N2-5@gated-at.bofh.it>
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Florian Fainelli <f.fainelli@gmail.com> writes:

> On 15/12/15 13:40, Eric Anholt wrote:
>> 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 <eric@anholt.net>
>> ---
>> 
>> 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.
>> 
>>  arch/arm/mach-bcm/Kconfig                   |  10 ++
>>  arch/arm/mach-bcm/Makefile                  |   1 +
>>  arch/arm/mach-bcm/raspberrypi-power.c       | 247 ++++++++++++++++++++++++++++
>>  include/dt-bindings/arm/raspberrypi-power.h |  41 +++++
>>  4 files changed, 299 insertions(+)
>>  create mode 100644 arch/arm/mach-bcm/raspberrypi-power.c
>
> What motivated the location of this power domain driver in
> arch/arm/mach-bcm? Should not we have this in drivers/power/ or
> somewhere in drivers/ at the very least?

ls stronly suggests that power contains drivers for power supplies and
batteries, not power domains.  There are 6 power domain drivers in
arch/arm, 3 in drivers/clk, and 3 in drivers/soc.

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Thread

[PATCH v3 2/4] ARM: bcm2835: add rpi power domain driver Eric Anholt <eric@anholt.net> - 2015-12-15 22:50 +0100
  Re: [PATCH v3 2/4] ARM: bcm2835: add rpi power domain driver Florian Fainelli <f.fainelli@gmail.com> - 2015-12-15 23:30 +0100
    Re: [PATCH v3 2/4] ARM: bcm2835: add rpi power domain driver Eric Anholt <eric@anholt.net> - 2015-12-16 01:00 +0100
      Re: [PATCH v3 2/4] ARM: bcm2835: add rpi power domain driver Florian Fainelli <f.fainelli@gmail.com> - 2015-12-16 01:10 +0100
        Re: [PATCH v3 2/4] ARM: bcm2835: add rpi power domain driver Eric Anholt <eric@anholt.net> - 2015-12-16 02:00 +0100
          Re: [PATCH v3 2/4] ARM: bcm2835: add rpi power domain driver Sebastian Reichel <sre@ring0.de> - 2015-12-16 02:30 +0100
            Re: [PATCH v3 2/4] ARM: bcm2835: add rpi power domain driver Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-12-16 02:30 +0100
              Re: [PATCH v3 2/4] ARM: bcm2835: add rpi power domain driver Ulf Hansson <ulf.hansson@linaro.org> - 2015-12-16 11:10 +0100
                Re: [PATCH v3 2/4] ARM: bcm2835: add rpi power domain driver Eric Anholt <eric@anholt.net> - 2015-12-17 01:40 +0100

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