Unverified Commit 3cf9bf3b authored by Samuel Holland's avatar Samuel Holland Committed by Maxime Ripard
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arm64: dts: allwinner: pinephone: Set ALDO3 to exactly 3v0 



ALDO3 is used as the power supply for the LRADC keys voltage divider,
in addition to supplying AVCC and VCC-PLL. While AVCC and VCC-PLL will
accept any voltage between 2v7 and 3v3, LRADC needs a precise 3v0 input
to maintain the expected 2:3 ratio between the internal 2v0 reference
voltage and the external supply.

Signed-off-by: default avatarSamuel Holland <samuel@sholland.org>
Signed-off-by: default avatarMaxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20201105054135.24860-3-samuel@sholland.org
parent 37f7a7b6

arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi

+2 −2
Original line number Diff line number Diff line
@@ -270,8 +270,8 @@ &reg_aldo2 { 


&reg_aldo3 {

	regulator-always-on;

	regulator-min-microvolt = <2700000>;

	regulator-max-microvolt = <3300000>;

	regulator-min-microvolt = <3000000>;

	regulator-max-microvolt = <3000000>;

	regulator-name = "vcc-pll-avcc";

};