[U-Boot] [PATCH v3 00/24] pmic: Redesign PMIC framework to support multiple instances of devices

[Lukasz Majewski]

Hi Stefano, Tom,

Any thoughts or ideas for this patch series?

> PMIC framework has been redesigned to support multiple instances of
> power related devices (e.g. fuel gauge, PMICs, chargers, micro USB
> IC, battery).
> 
> Due to that, code at other architectures and boards have been
> adjusted properly.
> 
> New power_init_board() method at ./lib/board.c file has been
> introduced. It is meant to be an architecture dependent function to
> support advanced power management. Since PMIC framework uses lists
> internally to link different devices, its initialization must be done
> just after malloc initialization.
> 
> Please consider commits from this patch set as the example of
> advanced power management for a particular HW (Trats board in this
> case).
> 
> In the new approach PMICs are selected with their names (e.g. 'pmic
> dump MAX8997_PMIC') Presented patch set is a first step to change
> 'pmic' command to more generic (i.e. power) to provide control for
> multiple devices.
> 
> Moreover device's battery is treated as an oridinary "power" device
> (like PMIC). Due to that, framework unification is possible. 
> For even more versalite design, each power device instance can
> specify its parent.
> 
> For trats one can build a following scheme (it can de different for
> other boards): -----------------
> 		--------| BAT		|------------
> 		|	|		|	    |
> 		|	-----------------	    |
> 		|		|		    |
> 	       \|/	       \|/		   \|/
> 	-----------	-----------------	---------
> 	|FG
> |	|MUIC		|	|CHRG	| |
> |	|		| 	|	|
> -----------	-----------------	---------
> 
> Finally, this patch series also comprises of a "namespace" cleanup -
> an attempt to rename "pmic" to "power" to better reflect generality
> of this framework.
> 
> 
> 
> Test HW:
>  - Exynos4210 Trats development board
> 
> 



-- 
Best regards,

Lukasz Majewski

Samsung Poland R&D Center | Linux Platform Group