--- /dev/null
+From b31ce3041787b61f2dad39d2dcda5c4a81d10e2b Mon Sep 17 00:00:00 2001
+From: Shawn Lin <shawn.lin@rock-chips.com>
+Date: Tue, 17 Oct 2017 11:38:04 +0800
+Subject: arm64: dts: rockchip: correct vqmmc voltage for rk3399 platforms
+
+From: Shawn Lin <shawn.lin@rock-chips.com>
+
+commit b31ce3041787b61f2dad39d2dcda5c4a81d10e2b upstream.
+
+The vcc_sd or vcc_sdio used for IO voltage for sdmmc and sdio
+interface on rk3399 platform have a limitation that it can't be
+larger than 3.0v, otherwise it has a potential risk for the chip.
+Correct all of them.
+
+Fixes: 171582e00db1 ("arm64: dts: rockchip: add support for firefly-rk3399 board")
+Fixes: 2c66fc34e945 ("arm64: dts: rockchip: add RK3399-Q7 (Puma) SoM")
+Fixes: 8164a84cca12 ("arm64: dts: rockchip: Add support for rk3399 sapphire SOM")
+Cc: stable@vger.kernel.org
+Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
+Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
+Signed-off-by: Heiko Stuebner <heiko@sntech.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/arm64/boot/dts/rockchip/rk3399-firefly.dts | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
++++ b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
+@@ -370,10 +370,10 @@
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+- regulator-max-microvolt = <3300000>;
++ regulator-max-microvolt = <3000000>;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+- regulator-suspend-microvolt = <3300000>;
++ regulator-suspend-microvolt = <3000000>;
+ };
+ };
+