linux-kernel - [PATCH v4 0/5] ARM: K2G: Add support for TI-SCI Generic PM Domains

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Date:   Tue, 7 Mar 2017 04:22:29 -0600
From:   Dave Gerlach <d-gerlach@...com>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Kevin Hilman <khilman@...nel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, Nishanth Menon <nm@...com>,
        Dave Gerlach <d-gerlach@...com>, Keerthy <j-keerthy@...com>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Tero Kristo <t-kristo@...com>,
        Sudeep Holla <sudeep.holla@....com>
Subject: [PATCH v4 0/5] ARM: K2G: Add support for TI-SCI Generic PM Domains

Hi,
This is v4 of the series to add support for TI-SCI Generic PM Domains.
Previous versions can be found here:

v3: https://www.spinics.net/lists/kernel/msg2413975.html
v2: https://www.spinics.net/lists/kernel/msg2364612.html
v1: http://www.spinics.net/lists/arm-kernel/msg525204.html

After much debate I have returned to using the phandle cell to pass the SCI ID
rather than the separate "ti,sci-id" property that was not very popular. In
order to do this I needed to make a change to the genpd framework which can be
seen in patch 2 and should benefit others that have client . Rather than
checking for zero phandle args and failing if any are present the
of_genpd_add_provider_simple call does not check at all and instead leaves
parsing and interpretation up to the platform genpd driver.

This allows the ti_sci_pm_domains driver to parse the phandle and use the first
phandle cell as the sci-id rather than getting it from a separate property.

Besides that none of the original patches have changed apart from updating the
year to 2017 in patches 3 and 4 and of course a small update to patch 4 to let
the ti_sci_pm_domains parse the phandle and extract the sci-id rather than
looking for the rejected ti,sci-id property.

I did not update the "power-domain" binding document because in regards to
#power-domain-cells it already states "can be any value as specified by device
tree binding documentation of particular provider" which I think already
describes the change in patch 2.

Regards,
Dave

Dave Gerlach (5):
  PM / Domains: Add generic data pointer to genpd data struct
  PM / Domains: Do not check if simple providers have phandle cells
  dt-bindings: Add TI SCI PM Domains
  soc: ti: Add ti_sci_pm_domains driver
  ARM: keystone: Drop PM domain support for k2g

 .../devicetree/bindings/soc/ti/sci-pm-domain.txt   |  59 ++++++
 MAINTAINERS                                        |   3 +
 arch/arm/mach-keystone/Kconfig                     |   1 +
 arch/arm/mach-keystone/pm_domain.c                 |   4 +-
 drivers/base/power/domain.c                        |   2 -
 drivers/soc/ti/Kconfig                             |  12 ++
 drivers/soc/ti/Makefile                            |   1 +
 drivers/soc/ti/ti_sci_pm_domains.c                 | 202 +++++++++++++++++++++
 include/dt-bindings/genpd/k2g.h                    |  90 +++++++++
 include/linux/pm_domain.h                          |   1 +
 10 files changed, 372 insertions(+), 3 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
 create mode 100644 drivers/soc/ti/ti_sci_pm_domains.c
 create mode 100644 include/dt-bindings/genpd/k2g.h

-- 
2.11.0