linux-kernel - [PATCH 1/2] ARM: dts: meson8b: odroidc1: Enable usb phy node

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Date:   Sun, 13 Jan 2019 18:18:07 +0000
From:   Anand Moon <linux.amoon@...il.com>
To:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Rob Herring <robh+dt@...nel.org>,
        Kevin Hilman <khilman@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Emiliano Ingrassia <ingrassia@...genesys.com>
Subject: [PATCH 1/2] ARM: dts: meson8b: odroidc1: Enable usb phy node

Add missing vbus-supply link to phy controller for usb_phy0
and usb_phy1 nodes, this changes fixed the power issue
on usb ports usb, changes help fix usb reset warning.

[  821.991470] usb 1-1.2: reset high-speed USB device number 3 using dwc2
[  825.243385] usb 1-1.2: reset high-speed USB device number 3 using dwc2
[  828.151310] usb 1-1.2: reset high-speed USB device number 3 using dwc2
[  830.991241] usb 1-1.2: reset high-speed USB device number 3 using dwc2

Fixes: 2eb79a4d15ff (ARM: dts: meson: enabling the USB Host controller on Odroid-C1/C1+ board)
Cc: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: Jerome Brunet <jbrunet@...libre.com>
Cc: Neil Armstrong <narmstrong@...libre.com>
Signed-off-by: Anand Moon <linux.amoon@...il.com>
---
Rebased on Kevin's amlogic/v5.0/fixes branch

[alarm@...hl-c1t ~]$ lsusb -t
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=dwc2/1p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
        |__ Port 1: Dev 4, If 0, Class=Mass Storage, Driver=usb-storage, 480M
        |__ Port 3: Dev 3, If 0, Class=Video, Driver=uvcvideo, 480M
        |__ Port 3: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M
        |__ Port 3: Dev 3, If 2, Class=Audio, Driver=snd-usb-audio, 480M
        |__ Port 3: Dev 3, If 3, Class=Audio, Driver=snd-usb-audio, 480M
[alarm@...hl-c1t ~]$
[alarm@...hl-c1t ~]$ lsusb -v|egrep "^Bus|MaxPower"
Couldn't open device, some information will be missing
Bus 001 Device 003: ID 1b71:0056 Fushicai
    MaxPower              500mA
Couldn't open device, some information will be missing
Bus 001 Device 004: ID 152d:0578 JMicron Technology Corp. / JMicron USA Technology Corp. JMS567 SATA 6Gb/s bridge
    MaxPower               30mA
Couldn't open device, some information will be missing
Couldn't open device, some information will be missing
Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
    MaxPower              100mA
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    MaxPower                0mA
---
 arch/arm/boot/dts/meson8b-odroidc1.dts | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/arm/boot/dts/meson8b-odroidc1.dts b/arch/arm/boot/dts/meson8b-odroidc1.dts
index 0f0a46ddf3ff..a49a8509b288 100644
--- a/arch/arm/boot/dts/meson8b-odroidc1.dts
+++ b/arch/arm/boot/dts/meson8b-odroidc1.dts
@@ -83,6 +83,19 @@
 		regulator-max-microvolt = <5000000>;
 	};
 
+	usb_vbus: regulator-usb-vbus {
+		compatible = "regulator-fixed";
+
+		regulator-name = "USB_VBUS";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+
+		vin-supply = <&p5v0>;
+
+		gpio = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
 	tflash_vdd: regulator-tflash_vdd {
 		/*
 		 * signal name from schematics: TFLASH_VDD_EN
@@ -293,8 +306,18 @@
 	pinctrl-names = "default";
 };
 
+&usb0_phy {
+	status = "okay";
+	vbus-supply = <&usb_vbus>;
+};
+
 &usb1_phy {
 	status = "okay";
+	vbus-supply = <&usb_vbus>;
+};
+
+&usb0 {
+	status = "okay";
 };
 
 &usb1 {
-- 
2.20.1