PmicNotes < U-Boot

---+ U-Boot Pmic drivers (Updated 15-Dec-14)

U-Boot provides a framework for pmic drivers. Details can be found in: [[http://git.denx.de/?p=u-boot.git;a=blob_plain;f=doc/README.power-framework][doc/README.power-framework]]

Since the driver-model is used, and boards/subsystems are moving to it, there is a need for update the PMIC framework.


---++ The implementation

The implementation assumptions:
   * will base on driver-model
   * use of the device-tree
   * one uclass per functionality
   * extend the user interface


----+ The work status


---++ December 2014

Resume the work on pmic framework after some break. Now the I2C and SPI subsystems provides support for the driver-model, so the background is done. 

---++ October 2014

The first version of new PMIC Framework was send to list. Is available also on [[https://github.com/bobenstein/u-boot/tree/dm-working-pmic][git-hub]]. And the conception was presented during the talk on U-Boot mini summit Düsseldorf 2014(ELCE 2014). The presentation can be found [[http://www.denx.de/wiki/pub/U-Boot/MiniSummitELCE2014/pmic_framework.pdf][here]].


This site will be updated after sending the next patchset.

-- Main.PrzemyslawMarczak - 15 Dec 2014