Commit b7e63d95 authored Dec 15, 2017 by Enric Balletbo i Serra Committed by Heiko Stuebner Dec 16, 2017

arm64: dts: rockchip: add reset property for dwc3 controllers on rk3399



After commit '06c47e62 usb: dwc3: of-simple: Add support to get resets
for the device' you can add the reset property to the dwc3 node, the reset
is required for the controller to work properly, otherwise bind / unbind
stress testing of the USB controller on rk3399 we'd often end up with lots
of failures that looked like this:

  phy phy-ff800000.phy.9: phy poweron failed --> -110
  dwc3 fe900000.dwc3: failed to initialize core
  dwc3: probe of fe900000.dwc3 failed with error -110

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

parent 9df8a2d9

arch/arm64/boot/dts/rockchip/rk3399.dtsi

+4 −0

Original line number	Diff line number	Diff line
		@@ -402,6 +402,8 @@
		clock-names = "ref_clk", "suspend_clk",
		"bus_clk", "aclk_usb3_rksoc_axi_perf",
		"aclk_usb3", "grf_clk";
		resets = <&cru SRST_A_USB3_OTG0>;
		reset-names = "usb3-otg";
		status = "disabled";

		usbdrd_dwc3_0: dwc3 {
		@@ -433,6 +435,8 @@
		clock-names = "ref_clk", "suspend_clk",
		"bus_clk", "aclk_usb3_rksoc_axi_perf",
		"aclk_usb3", "grf_clk";
		resets = <&cru SRST_A_USB3_OTG1>;
		reset-names = "usb3-otg";
		status = "disabled";

		usbdrd_dwc3_1: dwc3 {