blackbird-op-linux/include/linux/regulator/max8952.h, branch v4.5

regulator: max8952: Add Device Tree support

2013-04-05T10:20:52+00:00

This patch adds Device Tree support to max8952 regulator driver. Signed-off-by: Tomasz Figa Signed-off-by: Kyungmin Park Signed-off-by: Mark Brown

regulator: max8952: Separate constraints from platform data struct

2013-04-05T10:20:51+00:00

This patch modifies platform data structure of max8952 driver to use pointer to regulator_init_data struct instead of embedding it. This is a prerequisite for adding Device Tree support for the driver. Signed-off-by: Tomasz Figa Signed-off-by: Kyungmin Park Signed-off-by: Mark Brown

MAX8952 PMIC Driver Initial Release

2010-10-28T21:40:31+00:00

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 Signed-off-by: Kyungmin Park Acked-by: Mark Brown -- v2: - Style correction - Can accept platform_data with invalid GPIOs - Removed unnecessary features - Improved error handling Signed-off-by: Liam Girdwood