[PATCH v4 00/17] PCIe support for i.MX7

[Andrey Smirnov <andrew.smirnov@gmail.com>]

Everyone:

This seires is a build-up on previously submitted PCI sync set [1] and
contains the patches I created while working on adding support for
PCIe on i.MX7. The series consists of following:

 - Patches adding necessary regulator pluming to support porint ANATOP
   driver

 - ANATOP driver port

 - Port of basic power domain infrastructure from Linux kernel needed
   for controlling GPCv2 (useful for both i.MX7 and, especially, for
   i.MX8MQ)

 - Port of GPCv2 driver from Linux as well as of some bug fixes for it

 - Port of i.MX7 reset controller driver

 - Patches adding support for i.MX7 to existing i.MX6 PCIe host
   controller driver

 - Misc fixes

This series has been tested on i.MX7D SabreSD board against Toshiba
NVMe device.

Feedback is welcome!

Changes since [v3]:

  - ANATOP driver fixed to not produce bogus error messages for ANATOP
    regulatro variants that are not currently supported

Changes since [v2]:

  - Dropped "base: Port driver_deferred_probe_check_state() from
    Linux" and adjusted the rest of the series accordingly

Changes since [v1]:

  - Patches containing bugfixes for GPCv2 were squashed into the patch
    introducing the driver

  - Patches containing bugfixes for i.MX7 reset controller were
    squashed into the patch introducing the driver

  - Deffered probe by GPIO support in i.MX6 PCI driver fixed by having
    GPIO request preceed the call to dev_request_mem_resource()

Thanks,
Andrey Smirnov

[1] http://lists.infradead.org/pipermail/barebox/2018-December/036005.html
[v1] http://lists.infradead.org/pipermail/barebox/2019-January/036318.html
[v2] http://lists.infradead.org/pipermail/barebox/2019-January/036406.html
[v3] http://lists.infradead.org/pipermail/barebox/2019-January/036524.html

Andrey Smirnov (17):
  regulator: Convert drivers to use struct regulator_desc
  regulator: Port basic regmap regulator functions
  regulator: Add support for setting regulator's voltage
  base: driver: Drop redundant list_empty() check
  regulator: Assume probe deferral instead of missing regulator
  regulator: Port ANATOP driver from Linux
  drivers: base: Port power management code from Linux
  soc: imx: Add GPCv2 power gating driver
  reset: Add i.MX7 SRC reset driver
  reset: Mark local functions as static
  PCI: imx6: Add code to support i.MX7D
  PCI: imx6: Allow probe deferral by reset GPIO
  PCI: imx6: Do not wait for speed change on i.MX7
  PCI: imx6: Do not switch speed if Gen2 is disabled
  PCI: imx6: Fix spelling mistake: "contol" -> "control"
  PCI: imx6: Drop unnecessary root_bus_nr setting
  PCI: imx6: Port imx6_pcie_ltssm_enable()

 arch/arm/mach-imx/Kconfig            |   1 +
 drivers/Kconfig                      |   2 +
 drivers/Makefile                     |   1 +
 drivers/base/Kconfig                 |   3 +
 drivers/base/Makefile                |   4 +-
 drivers/base/driver.c                |   5 +-
 drivers/base/platform.c              |   7 +
 drivers/base/power.c                 | 249 +++++++++++++++++++++
 drivers/pci/Kconfig                  |   4 +-
 drivers/pci/pci-imx6.c               | 255 +++++++++++++++-------
 drivers/regulator/Kconfig            |   8 +
 drivers/regulator/Makefile           |   5 +-
 drivers/regulator/anatop-regulator.c | 162 ++++++++++++++
 drivers/regulator/bcm2835.c          |   6 +-
 drivers/regulator/core.c             |  59 ++++-
 drivers/regulator/fixed.c            |   6 +-
 drivers/regulator/helpers.c          | 186 ++++++++++++++++
 drivers/reset/Kconfig                |  11 +
 drivers/reset/Makefile               |   1 +
 drivers/reset/core.c                 |   8 +-
 drivers/reset/reset-imx7.c           | 151 +++++++++++++
 drivers/soc/imx/Kconfig              |   9 +
 drivers/soc/imx/Makefile             |   1 +
 drivers/soc/imx/gpcv2.c              | 315 +++++++++++++++++++++++++++
 include/pm_domain.h                  |  82 +++++++
 include/regulator.h                  |  41 +++-
 26 files changed, 1481 insertions(+), 101 deletions(-)
 create mode 100644 drivers/base/Kconfig
 create mode 100644 drivers/base/power.c
 create mode 100644 drivers/regulator/anatop-regulator.c
 create mode 100644 drivers/regulator/helpers.c
 create mode 100644 drivers/reset/reset-imx7.c
 create mode 100644 drivers/soc/imx/Kconfig
 create mode 100644 drivers/soc/imx/Makefile
 create mode 100644 drivers/soc/imx/gpcv2.c
 create mode 100644 include/pm_domain.h

-- 
2.20.1


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