[PATCH v2] MAX8952 PMIC Driver Initial Release

Mark Brown broonie at opensource.wolfsonmicro.com
Fri Aug 20 05:53:51 EDT 2010


On Fri, Aug 20, 2010 at 02:43:56PM +0900, MyungJoo Ham wrote:
> MAX8952 PMIC is used to provide voltage output between 770mV - 1400mV
> with DVS support. In this initial release, users can set voltages for
> four DVS modes, RAMP delay values, and SYNC frequency.
> Controlling FPWM/SYNC_MODE/Pull-Down/Ramp Modes and reading CHIP_ID
> is not supported in this release.
> 
> If GPIO of EN is not valid in platform data, the driver assumes that it
> is always-on. If GPIO of VID0 or VID1 is invalid, the driver pulls down
> VID0 and VID1 to fix DVS mode as 0 and disables DVS support.
> 
> We assume that V_OUT is capable to provide every voltage from 770mV to
> 1.40V in 10mV steps although the data sheet has some ambiguity on it.
> 
> Signed-off-by: MyungJoo Ham <myungjoo.ham at samsung.com>
> Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>

Acked-by: Mark Brown <broonie at opensource.wolfsonmicro.com>



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