ARM: dts: sunxi: h3-h5: Add Bananapi M2+ v1.2 device trees

Bananapi released an updated revision of the H3/H5 based Bananapi M2+.
Version 1.2 enables voltage control for the CPU's regulator by using
a GPIO line to toggle a MOSFET that can change the effective resistance
value in the regulator's feedback network.

This patch adds a common .dtsi file for this new revision, which
includes the original common sunxi-bananapi-m2-plus.dtsi file, and
adds the GPIO-controlled regulator and a cpu-supply reference. H3
and H5 variant dts files are added as well.

Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 92dc4f05cf23c92793cb2db73de435f0addc1308..2a1a8c6625ad1c1595e0a1b2c0645dc7b47b2268 100644 (file)
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1033,6 +1033,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
        sun8i-h2-plus-orangepi-r1.dtb \
        sun8i-h2-plus-orangepi-zero.dtb \
        sun8i-h3-bananapi-m2-plus.dtb \
+       sun8i-h3-bananapi-m2-plus-v1.2.dtb \
        sun8i-h3-beelink-x2.dtb \
        sun8i-h3-libretech-all-h3-cc.dtb \
        sun8i-h3-nanopi-m1.dtb  \

diff --git a/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus-v1.2.dts b/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus-v1.2.dts
new file mode 100644 (file)
index 0000000..fc4a8c3
--- /dev/null
+++ b/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus-v1.2.dts
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2018 Chen-Yu Tsai <wens@csie.org>
+ */
+
+/dts-v1/;
+#include "sun8i-h3.dtsi"
+#include "sunxi-bananapi-m2-plus-v1.2.dtsi"
+
+/ {
+       model = "Banana Pi BPI-M2-Plus v1.2 H3";
+       compatible = "bananapi,bpi-m2-plus-v1.2", "allwinner,sun8i-h3";
+};

diff --git a/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi b/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi
new file mode 100644 (file)
index 0000000..53edd1f
--- /dev/null
+++ b/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2018 Chen-Yu Tsai <wens@csie.org>
+ */
+
+#include "sunxi-bananapi-m2-plus.dtsi"
+
+/ {
+       /*
+        * Bananapi M2+ v1.2 uses a GPIO line to change the effective
+        * resistance on the CPU regulator's feedback pin.
+        */
+       reg_vdd_cpux: vdd-cpux {
+               compatible = "regulator-gpio";
+               regulator-name = "vdd-cpux";
+               regulator-type = "voltage";
+               regulator-boot-on;
+               regulator-always-on;
+               regulator-min-microvolt = <1100000>;
+               regulator-max-microvolt = <1300000>;
+               regulator-ramp-delay = <50>; /* 4ms */
+               gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL1 */
+               gpios-states = <0x1>;
+               states = <1100000 0x0
+                         1300000 0x1>;
+       };
+};
+
+&cpu0 {
+       cpu-supply = <&reg_vdd_cpux>;
+};

diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
index cf25502455707c345f66e008052479724c8d881f..b7f6cfbeb6156fbeff00c3274760e7a9e21c9d59 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/Makefile
+++ b/arch/arm64/boot/dts/allwinner/Makefile
@@ -9,6 +9,7 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pinebook.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-sopine-baseboard.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-teres-i.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-bananapi-m2-plus.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-bananapi-m2-plus-v1.2.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-libretech-all-h3-cc.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-nanopi-neo2.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-nanopi-neo-plus2.dtb

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-bananapi-m2-plus-v1.2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-bananapi-m2-plus-v1.2.dts
new file mode 100644 (file)
index 0000000..2e2b14c
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-bananapi-m2-plus-v1.2.dts
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+// Copyright (C) 2018 Chen-Yu Tsai <wens@csie.org>
+
+/dts-v1/;
+#include "sun50i-h5.dtsi"
+#include <arm/sunxi-bananapi-m2-plus-v1.2.dtsi>
+
+/ {
+       model = "Banana Pi BPI-M2-Plus v1.2 H5";
+       compatible = "bananapi,bpi-m2-plus-v1.2", "allwinner,sun50i-h5";
+};