[linux-sunxi] [PATCH v2 6/8] regulator: dts: enable soft-start and ramp delay for the OLinuXino Lime2

[Priit Laes]

From: Olliver Schinagl <oli...@schinagl.nl>

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 <oli...@schinagl.nl>
Signed-off-by: Priit Laes <pl...@plaes.org>
---
 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>;
 };
 
 &reg_ldo4 {
-- 
git-series 0.9.1

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