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

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After commit '06c47e6286d 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>
This commit is contained in:
Enric Balletbo i Serra 2017-12-15 12:00:05 +01:00 committed by Heiko Stuebner
parent 9df8a2d912
commit b7e63d95c1
1 changed files with 4 additions and 0 deletions
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4
arch/arm64/boot/dts/rockchip/rk3399.dtsi
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@ -402,6 +402,8 @@ usbdrd3_0: usb@fe800000 {
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 @@ usbdrd3_1: usb@fe900000 {
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 {