From 35fd7af5f7b394749ad1030f72df345ae880318b Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Fri, 12 Apr 2024 15:02:00 +0300 Subject: [PATCH] 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: Roger Quadros Reviewed-by: Ravi Gunasekaran Link: https://lore.kernel.org/r/20240412-for-v6-10-am62-usb-typec-dt-v7-3-93b827adf97e@kernel.org Signed-off-by: Nishanth Menon --- arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi index 31fc59b02f21a..3fd59283eafe2 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi @@ -622,6 +622,8 @@ interrupt-names = "host", "peripheral"; maximum-speed = "high-speed"; dr_mode = "otg"; + snps,usb2-gadget-lpm-disable; + snps,usb2-lpm-disable; }; }; @@ -646,6 +648,8 @@ interrupt-names = "host", "peripheral"; maximum-speed = "high-speed"; dr_mode = "otg"; + snps,usb2-gadget-lpm-disable; + snps,usb2-lpm-disable; }; }; -- 2.30.2