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