From: Lucas Stach <l.stach@pengutronix.de>
Date: Mon, 25 Jan 2021 18:47:34 +0000 (+0100)
Subject: arm64: dts: zii-ultra: limit USB ports to USB2 speed
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f2615e598a50f8077e6ec70e2060ca0b5d8f989f;p=linux.git

arm64: dts: zii-ultra: limit USB ports to USB2 speed

The internal USB is connected to a USB2 hub, the front-panel USB
is wired directly, but does not support USB3 speeds electrically.
Limit both ports accordingly.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
index aa05d5fd1b3b9..edbde9ed4caf7 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
@@ -540,6 +540,7 @@
 
 &usb_dwc3_0 {
 	dr_mode = "host";
+	maximum-speed = "high-speed";
 	status = "okay";
 };
 
@@ -550,6 +551,7 @@
 
 &usb_dwc3_1 {
 	dr_mode = "host";
+	maximum-speed = "high-speed";
 	status = "okay";
 };