[PATCH 0/3] ARM: K2G: Add support for TI-SCI Generic PM Domains

[Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>]

Texas Instruments' Keystone generation System on Chips (SoC)
starting with 66AK2G02[1], now include a dedicated SoC System Control
entity called PMMC(Power Management Micro Controller) in line with
ARM architecture recommendations. The function of this module is
to integrate all system operations in a centralized location.
Communication with the SoC System Control entity from various
processing units like ARM/DSP occurs over Message Manager hardware
block.

This series adds the base support for device control using generic
power domain framework over the TI System Control Interface (TI-SCI)
protocol[2][3].

Overall architecture is very similar to SCPI[4] as follows:
+----------------+  +---------+   +------------+
| TI SCI GENPD(*)|  |TISCI Clk|   |TISCI reset |
+------+---------+  +--+------+   +------+-----+
       |               |                 |
       |          +----v--------------+  |
       +----------> TISCI Protocol    <--+
                  +----+--------------+
                       |
                   +---v-----------+
                   | MAILBOX  FWK  |
                   +---+-----------+
                       |
                   +---v-----------+
                   |  TI MSGMGR    |-> TISCI hardware block
                   +---------------+

(*) This series.

Baseline: v4.8-rc1 + [3] (the dependency is due to MAINTAINERS update)
Bootlog: http://pastebin.ubuntu.com/23071846/ (with the addition of couple of mach patches + dts)
Integrated series is available:
https://github.com/nmenon/linux-2.6-playground/commits/upstream/v4.9/tisci-genpd-v1

Dave Gerlach (3):
  Documentation: dt: Add TI-SCI PM Domains
  dt-bindings: genpd: Add K2G device definitions
  soc: ti: Add ti_sci_pm_domains driver

[1] http://www.ti.com/product/66ak2g02
[2] http://processors.wiki.ti.com/index.php/TISCI
[3] https://lkml.org/lkml/2016/8/19/768

 .../devicetree/bindings/soc/ti/sci-pm-domain.txt   |  58 ++++++
 MAINTAINERS                                        |   3 +
 arch/arm/mach-keystone/Kconfig                     |   1 +
 drivers/soc/ti/Kconfig                             |  12 ++
 drivers/soc/ti/Makefile                            |   1 +
 drivers/soc/ti/ti_sci_pm_domains.c                 | 222 +++++++++++++++++++++
 include/dt-bindings/genpd/k2g.h                    |  90 +++++++++
 7 files changed, 387 insertions(+)
 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

-- 
2.9.1.200.gb1ec08f

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