linux-kernel - [PATCH v1 2/2] ARM: dts: colibri-imx6ull: add extcon for usbotg1

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Date:   Mon, 21 Oct 2019 19:16:54 +0300
From:   Igor Opaniuk <igor.opaniuk@...il.com>
To:     linux-usb@...r.kernel.org
Cc:     Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Philippe Schenker <philippe.schenker@...adex.com>,
        Stefan Agner <stefan.agner@...adex.com>,
        Max Krummenacher <max.krummenacher@...adex.com>,
        Oleksandr Suvorov <oleksandr.suvorov@...adex.com>,
        Igor Opaniuk <igor.opaniuk@...adex.com>,
        Fabio Estevam <festevam@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 2/2] ARM: dts: colibri-imx6ull: add extcon for usbotg1

From: Igor Opaniuk <igor.opaniuk@...adex.com>

Add extcon usb gpio configuration for support dual roles for usbotg1.

USB host/gadget switching test (1. USB NIC emulation; 2. USB storage):

[   52.491957] ci_hdrc ci_hdrc.1: switching to gadget role
[   52.502911] mxs_phy 20c9000.usbphy: vbus is not valid
[   56.749160] using random self ethernet address
[   56.758637] using random host ethernet address
[   65.768968] usb0: HOST MAC 00:14:2d:ff:ff:fe
[   65.887980] usb0: MAC 00:14:2d:ff:ff:ff
[   66.294961] configfs-gadget gadget: high-speed config #1: c
[   78.741971] ci_hdrc ci_hdrc.1: switching to host role
[   78.747522] ci_hdrc ci_hdrc.1: EHCI Host Controller
[   78.790174] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus
number 2
[   78.868498] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00

Signed-off-by: Igor Opaniuk <igor.opaniuk@...adex.com>
---

 arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi b/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi
index a78849fd2afa..988f1a800d5a 100644
--- a/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi
+++ b/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi
@@ -29,6 +29,14 @@
 		clock-frequency = <16000000>;
 	};
 
+	extcon_usbc_det: usbc_det {
+		compatible = "linux,extcon-usb-gpio";
+		debounce = <25>;
+		id-gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_snvs_usbc_det>;
+	};
+
 	panel: panel {
 		compatible = "edt,et057090dhu";
 		backlight = <&bl>;
@@ -150,6 +158,7 @@
 };
 
 &usbotg1 {
+	extcon = <&extcon_usbc_det &extcon_usbc_det>;
 	status = "okay";
 };
 
-- 
2.17.1