From c1132b006785b14d01ccf40922493278984555d5 Mon Sep 17 00:00:00 2001 From: Olliver Schinagl Date: Tue, 11 Dec 2018 17:17:10 +0200 Subject: [PATCH] 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 Signed-off-by: Priit Laes Signed-off-by: Mark Brown --- 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 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 { -- 2.30.2