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
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