From b293b5553822f8e8fb5ffb7b5036ded1b423ab35 Mon Sep 17 00:00:00 2001 From: Klaus Goger Date: Thu, 5 Apr 2018 12:32:42 +0200 Subject: Reduce SD IO Voltage to 3.0V The SD-Card IO rail on the RK3399 should not be operated higher than 3.15V. We reduce it to 3.0V. Note that the I/Os on the Qseven edge connector will still be 3.3V as expected. Signed-off-by: Klaus Goger --- arch/arm64/boot/dts/rockchip/rk3399-puma.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dts b/arch/arm64/boot/dts/rockchip/rk3399-puma.dts index f97fa56ae6ea..9073b1da1d48 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dts @@ -539,11 +539,11 @@ regulator-always-on; regulator-boot-on; regulator-min-microvolt = <1800000>; - regulator-max-microvolt = <3300000>; + regulator-max-microvolt = <3000000>; regulator-name = "vcc_sd"; regulator-state-mem { regulator-on-in-suspend; - regulator-suspend-microvolt = <3300000>; + regulator-suspend-microvolt = <3000000>; }; }; -- cgit v1.2.3