diff options
| author | Olliver Schinagl <oliver@schinagl.nl> | 2018-12-11 16:17:10 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-12-13 17:39:57 +0100 |
| commit | c1132b006785b14d01ccf40922493278984555d5 (patch) | |
| tree | 2076d7f34d8401a6453d64b0b9adfb6ffb01e8df /arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts | |
| parent | dt-bindings: mfd: axp20x: Add software based soft_start for AXP209 LDO3 (diff) | |
| download | linux-c1132b006785b14d01ccf40922493278984555d5.tar.xz linux-c1132b006785b14d01ccf40922493278984555d5.zip | |
regulator: dts: enable soft-start and ramp delay for the OLinuXino Lime2
The OLinuXino Lime2 has a big capacitor on its LDO3 output. It is
actually too large, causing the PMIC to shutdown when toggling the LDO3.
By enabling soft-start and ramp delay we increase the time for the
capacitor to charge lowering the current drain on the power regulator.
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts')
| -rw-r--r-- | arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts index b828677f331d..ffafe9720b35 100644 --- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts +++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts @@ -245,6 +245,8 @@ regulator-min-microvolt = <2800000>; regulator-max-microvolt = <2800000>; regulator-name = "vddio-csi0"; + regulator-soft-start; + regulator-ramp-delay = <1600>; }; ®_ldo4 { |