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diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts
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index 000000000000..a9f5b670c9b8
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+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+// Copyright (C) 2020 Ondrej Jirman <megous@megous.com>
+
+/dts-v1/;
+
+#include "sun50i-a64-pinephone.dtsi"
+
+/ {
+ model = "Pine64 PinePhone (1.2)";
+ compatible = "pine64,pinephone-1.2", "allwinner,sun50i-a64";
+};
+
+&backlight {
+ power-supply = <&reg_ldo_io0>;
+ /*
+ * PWM backlight circuit on this PinePhone revision was changed since 1.0,
+ * and the lowest PWM duty cycle that doesn't lead to backlight being off
+ * is around 10%. Duty cycle for the lowest brightness level also varries
+ * quite a bit between individual boards, so the lowest value here was
+ * chosen as a safe default.
+ */
+ brightness-levels = <
+ 5000 5248 5506 5858 6345
+ 6987 7805 8823 10062 11543
+ 13287 15317 17654 20319 23336
+ 26724 30505 34702 39335 44427
+ 50000
+ >;
+ num-interpolated-steps = <50>;
+ default-brightness-level = <500>;
+};
+
+&lis3mdl {
+ /*
+ * Board revision 1.2 fixed routing of the interrupt to DRDY pin,
+ * enable interrupts.
+ */
+ interrupt-parent = <&pio>;
+ interrupts = <1 1 IRQ_TYPE_EDGE_RISING>; /* PB1 */
+};