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authorOlliver Schinagl <oliver@schinagl.nl>2018-12-11 17:17:10 +0200
committerMark Brown <broonie@kernel.org>2018-12-13 16:39:57 +0000
commitc1132b006785b14d01ccf40922493278984555d5 (patch)
tree2076d7f34d8401a6453d64b0b9adfb6ffb01e8df /arch/arm/boot
parenteb51c6eb9775d5e7ef810327dbc84bb0d15f72b5 (diff)
downloadlinux-c1132b006785b14d01ccf40922493278984555d5.tar.bz2
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')
-rw-r--r--arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts2
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>;
};
&reg_ldo4 {