[PATCH 6/8] regulator: dts: enable soft-start and ramp delay for the OLinuXino Lime2
From: Priit Laes
Date: Mon Dec 10 2018 - 13:42:36 EST
From: Olliver Schinagl <oliver@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Signed-off-by: Priit Laes <plaes@xxxxxxxxx>
---
arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
index 55c9086..4e1c590 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
@@ -232,6 +232,8 @@
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-name = "vddio-csi0";
+ regulator-soft-start;
+ regulator-ramp-delay = <1600>;
};
®_ldo4 {
--
git-series 0.9.1