Commit 35fd7af5 authored by Roger Quadros's avatar Roger Quadros Committed by Nishanth Menon
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arm64: dts: ti: k3-am62a: Disable USB LPM 

As per AM62A TRM [1] USB Link Power Management (LPM)
feature is not supported. Disable it else it may
cause enumeration failure on some devices.

> 4.9.2.1 USB2SS Unsupported Features
> The following features are not supported on this family of devices:
> ...
> - USB 2.0 ECN: Link Power Management (LPM)
> ...

[1] - https://www.ti.com/lit/pdf/spruj16



Signed-off-by: default avatarRoger Quadros <rogerq@kernel.org>
Reviewed-by: default avatarRavi Gunasekaran <r-gunasekaran@ti.com>
Link: https://lore.kernel.org/r/20240412-for-v6-10-am62-usb-typec-dt-v7-3-93b827adf97e@kernel.org


Signed-off-by: default avatarNishanth Menon <nm@ti.com>
parent c1453d3c

arch/arm64/boot/dts/ti/k3-am62a-main.dtsi

+4 −0
Original line number Diff line number Diff line
@@ -622,6 +622,8 @@ usb0: usb@31000000 { 
			interrupt-names = "host", "peripheral";

			maximum-speed = "high-speed";

			dr_mode = "otg";

			snps,usb2-gadget-lpm-disable;

			snps,usb2-lpm-disable;

		};

	};
@@ -646,6 +648,8 @@ usb1: usb@31100000 { 
			interrupt-names = "host", "peripheral";

			maximum-speed = "high-speed";

			dr_mode = "otg";

			snps,usb2-gadget-lpm-disable;

			snps,usb2-lpm-disable;

		};

	};