[PATCH v2 0/8] regulator: axp20x: Stop AXP209 from crashing when enabling LDO3
From: Priit Laes
Date: Tue Dec 11 2018 - 10:17:23 EST
This is a second edition of a series that implements voltage
ramping for AXP209 DCDC2 and LDO3 regulators and software
based soft-start for AXP209 LDO3 regulator.
Both features are needed to work around a PMIC shutdown when
toggling LDO3 on certain boards with high capacitance on the
Similar features (or workarounds) have been also implemented
on u-boot side .
Changes since v1:
- Rebased on top of next and dropped already merged patches.
- Dropped LDO4 full range devicetree change for Lime2 (prev patch 9)
in favor of general pin-bank regulator dependency .
- Fixed paths in devicetree bindings (patch 3)
- Added note about software based soft-start for LDO3 (patch 5)
Olliver Schinagl (8):
mfd: axp20x: name voltage ramping define properly
regulator: axp20x: add support for set_ramp_delay for AXP209
dt-bindings: mfd: axp20x: add support for regulator-ramp-delay for AXP209
regulator: axp20x: add software based soft_start for AXP209 LDO3
dt-bindings: mfd: axp20x: Add software based soft_start for AXP209 LDO3
regulator: dts: enable soft-start and ramp delay for the OLinuXino Lime2
mfd: axp20x: Clean up included headers
mfd: axp20x: use explicit bit defines
Documentation/devicetree/bindings/mfd/axp20x.txt | 9 +-
arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts | 2 +-
drivers/mfd/axp20x.c | 13 +-
drivers/regulator/axp20x-regulator.c | 142 +++++++++++++++-
include/linux/mfd/axp20x.h | 4 +-
5 files changed, 161 insertions(+), 9 deletions(-)