[U-Boot] [PATCH v2 00/12] Power(full) framework based on Driver Model

[Przemyslaw Marczak <p.marczak@samsung.com>]

Hello,
Here is the second RFC version of the new PMIC framework.
The changes made in this version are described below each commit.

So again, a quick summary of:
Framework:
- Add new uclass types:
 -- UCLASS_PMIC(for device I/O)
 -- UCLASS_PMIC_REGULATOR (for common regulator ops)
- Two uclass drivers for the above types
- A common regulator operations - will easy cover the real devices design
- V2: pmic: add read/write ops
- V2: regulator: use regulator type as an argument - not as function name


Drivers:
- Introduce new PMIC API for drivers - now everything base on "struct udevice"
- Introduce Regulator Voltage descriptors and Operation Mode descriptors
  which are usually taken from the device tree (board dependent data)
- Two uclass device drivers for MAX77686(PMIC+REGULATOR)
- V2: don't use the 'hw union' from old pmic
- V2: remove the files: pmic_i2c.c/pmic_spi.c - now using bus drivers
- V2: cleanup the pmic_get() functions
- V2: add pmic_io_dev() function for getting the proper I/O dev for devices
- V2: add function calls for getting pmic devices platdata
- V2: remove regulator type from regulator operations function calls,
      use type as an argument

User Interface:
- command pmic, unchanged functionality and ported to the driver model
- command regulator(NEW) for safe regulator setup from commandline,
  - now can check output Voltage and operation mode of the regulators,
  - also can check the board Voltage limits and driver available modes
- V2: simplify the code after remove the regulator type from function naming
- V2: add on/off command

Supported boards:
- Odroid U3
- V2: drop the commits for Trats2 - wait for charger and muic uclass types

The assumptions of this work is:
- Add new code to independent files
- Keep two Frameworks as independent and without conflicts
- Don't mix OLD/NEW Framework code - for the readability

The future plans:
- Add additional uclass types: MUIC, CHARGER, BATTERY, MFD and maybe more.
- Port all U-Boot drivers to the new Framework
- Remove the old drivers and the old PMIC Framework code

Need help:
- After merge this, it is welcome to help with driver porting
- Every new driver should be tested on real hardware

Best regards

Przemyslaw Marczak (12):
  exynos5: fix build break by adding CONFIG_POWER
  dm: device: add function device_get_first_child_by_uclass_id()
  dm: pmic: add implementation of driver model pmic uclass
  dm: pmic: add implementation of driver model regulator uclass
  dm: pmic: new commands: pmic and regulator
  dm: pmic: add max77686 pmic driver
  dm: regulator: add max77686 regulator driver
  doc: driver-model: pmic and regulator uclass documentation
  dm: board:samsung: power_init_board: add requirement of CONFIG_DM_PMIC
  odroid: board: add support to dm pmic api
  odroid: dts: add 'voltage-regulators' description to max77686 node
  odroid: config: enable dm pmic, dm regulator and max77686 driver

 Makefile                               |   1 +
 arch/arm/dts/exynos4412-odroid.dts     | 249 ++++++++-
 board/samsung/common/board.c           |   4 +-
 board/samsung/common/misc.c            |   1 +
 board/samsung/odroid/odroid.c          |  52 +-
 configs/odroid_defconfig               |   1 -
 doc/driver-model/dm-pmic-framework.txt | 367 +++++++++++++
 drivers/core/device.c                  |  15 +
 drivers/power/Makefile                 |   5 +-
 drivers/power/cmd_pmic.c               | 820 +++++++++++++++++++++++++++++
 drivers/power/pmic-uclass.c            | 191 +++++++
 drivers/power/pmic/Makefile            |   1 +
 drivers/power/pmic/max77686.c          | 102 ++++
 drivers/power/pmic/pmic_max77686.c     |   2 +-
 drivers/power/regulator-uclass.c       | 227 ++++++++
 drivers/power/regulator/Makefile       |   8 +
 drivers/power/regulator/max77686.c     | 926 +++++++++++++++++++++++++++++++++
 include/configs/exynos5-common.h       |   4 +
 include/configs/odroid.h               |   9 +-
 include/dm/device.h                    |  16 +
 include/dm/uclass-id.h                 |   4 +
 include/power/max77686_pmic.h          |  26 +-
 include/power/pmic.h                   | 265 ++++++++++
 include/power/regulator.h              | 310 +++++++++++
 24 files changed, 3573 insertions(+), 33 deletions(-)
 create mode 100644 doc/driver-model/dm-pmic-framework.txt
 create mode 100644 drivers/power/cmd_pmic.c
 create mode 100644 drivers/power/pmic-uclass.c
 create mode 100644 drivers/power/pmic/max77686.c
 create mode 100644 drivers/power/regulator-uclass.c
 create mode 100644 drivers/power/regulator/Makefile
 create mode 100644 drivers/power/regulator/max77686.c
 create mode 100644 include/power/regulator.h

-- 
1.9.1