linux-kernel - [PATCH v2 09/13] arm64: dts: rockchip: Enable the USB 2.0 ports on ODROID-M1

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Message-Id: <20220926183727.1893566-10-aurelien@aurel32.net>
Date:   Mon, 26 Sep 2022 20:37:23 +0200
From:   Aurelien Jarno <aurelien@...el32.net>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Rockchip SoC
        support),
        linux-rockchip@...ts.infradead.org (open list:ARM/Rockchip SoC support),
        linux-kernel@...r.kernel.org (open list)
Cc:     Dongjin Kim <tobetter@...il.com>,
        Aurelien Jarno <aurelien@...el32.net>
Subject: [PATCH v2 09/13] arm64: dts: rockchip: Enable the USB 2.0 ports on ODROID-M1

The Rockchip RK3568 has two USB OHCI/EHCI controllers connected to a PHY
providing one host-only port and one OTG port. On the ODROID-M1, they
are both used in host mode. The USB ports are powered by a DC/DC
converter providing 5V and named VCC5V0_SYS on the schematics, followed
by a power switch.

Signed-off-by: Aurelien Jarno <aurelien@...el32.net>
---
 .../boot/dts/rockchip/rk3568-odroid-m1.dts    | 61 +++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-odroid-m1.dts b/arch/arm64/boot/dts/rockchip/rk3568-odroid-m1.dts
index 281d8fdc0885..595f56c41a15 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-odroid-m1.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-odroid-m1.dts
@@ -105,6 +105,28 @@ vcc3v3_sys: vcc3v3-sys-regulator {
 		regulator-max-microvolt = <3300000>;
 		vin-supply = <&dc_12v>;
 	};
+
+	vcc5v0_sys: vcc5v0-sys-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc5v0_sys";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&dc_12v>;
+	};
+
+	vcc5v0_usb_host: vcc5v0-usb-host-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc5v0_usb_host";
+		enable-active-high;
+		gpio = <&gpio0 RK_PA6 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&vcc5v0_usb_host_en_pin>;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
 };
 
 &cpu0 {
@@ -449,6 +471,15 @@ hp_det_pin: hp-det-pin {
 			rockchip,pins = <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
 		};
 	};
+
+	usb {
+		vcc5v0_usb_host_en_pin: vcc5v0-usb-host-en-pin {
+			rockchip,pins = <0 RK_PA6 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+		vcc5v0_usb_otg_en_pin: vcc5v0-usb-otg-en-pin {
+			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
 };
 
 &pmu_io_domains {
@@ -546,6 +577,36 @@ &uart2 {
 	status = "okay";
 };
 
+&usb_host0_ehci {
+	status = "okay";
+};
+
+&usb_host0_ohci {
+	status = "okay";
+};
+
+&usb_host1_ehci {
+	status = "okay";
+};
+
+&usb_host1_ohci {
+	status = "okay";
+};
+
+&usb2phy1 {
+	status = "okay";
+};
+
+&usb2phy1_host {
+	phy-supply = <&vcc5v0_usb_host>;
+	status = "okay";
+};
+
+&usb2phy1_otg {
+	phy-supply = <&vcc5v0_usb_host>;
+	status = "okay";
+};
+
 &vop {
 	assigned-clocks = <&cru DCLK_VOP0>, <&cru DCLK_VOP1>;
 	assigned-clock-parents = <&pmucru PLL_HPLL>, <&cru PLL_VPLL>;
-- 
2.35.1