linux-kernel - [PATCH v2 5/5] ARM: suniv: f1c100s: enable USB on Lichee Pi Nano

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Date:   Tue, 31 Mar 2020 12:02:19 -0500
From:   George Hilliard <thirtythreeforty@...il.com>
To:     Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     Icenowy Zheng <icenowy@...c.io>, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        George Hilliard <thirtythreeforty@...il.com>
Subject: [PATCH v2 5/5] ARM: suniv: f1c100s: enable USB on Lichee Pi Nano

From: Icenowy Zheng <icenowy@...c.io>

Lichee Pi Nano has a Micro-USB connector, with its D+, D- pins connected
to the USB pins of the SoC and ID pin connected to PE2 GPIO.

Enable the USB functionality.

This patch depends on the previous change to the F1C100s device tree.

Signed-off-by: Icenowy Zheng <icenowy@...c.io>
Signed-off-by: George Hilliard <thirtythreeforty@...il.com>
---
 .../arm/boot/dts/suniv-f1c100s-licheepi-nano.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/suniv-f1c100s-licheepi-nano.dts b/arch/arm/boot/dts/suniv-f1c100s-licheepi-nano.dts
index a1154e6c7cb5..c42186e22d45 100644
--- a/arch/arm/boot/dts/suniv-f1c100s-licheepi-nano.dts
+++ b/arch/arm/boot/dts/suniv-f1c100s-licheepi-nano.dts
@@ -6,6 +6,8 @@
 /dts-v1/;
 #include "suniv-f1c100s.dtsi"
 
+#include <dt-bindings/gpio/gpio.h>
+
 / {
 	model = "Lichee Pi Nano";
 	compatible = "licheepi,licheepi-nano", "allwinner,suniv-f1c100s";
@@ -19,8 +21,22 @@ chosen {
 	};
 };
 
+&otg_sram {
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pe_pins>;
 	status = "okay";
 };
+
+&usb_otg {
+	dr_mode = "otg";
+	status = "okay";
+};
+
+&usbphy {
+	usb0_id_det-gpio = <&pio 4 2 GPIO_ACTIVE_HIGH>; /* PE2 */
+	status = "okay";
+};
-- 
2.26.0