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| author | MyungJoo Ham <myungjoo.ham@samsung.com> | 2010-08-20 14:43:56 +0900 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2010-10-28 22:40:31 +0100 |
| commit | 202f4f53e503ae09b431459131b5b3a99fa6d839 (patch) | |
| tree | 71f4597427f8bc9011aca93f873bd01154f2d25d /scripts | |
| parent | 2d3b07c07b39c4b7d9b6641052a02d996cd5d87c (diff) | |
MAX8952 PMIC Driver Initial Release
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@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
--
v2:
- Style correction
- Can accept platform_data with invalid GPIOs
- Removed unnecessary features
- Improved error handling
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions