Skip to content

Commit 35fd7af

Browse files
rogerqnmenon
authored andcommitted
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 <rogerq@kernel.org> Reviewed-by: Ravi 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: Nishanth Menon <nm@ti.com>
1 parent c1453d3 commit 35fd7af

1 file changed

Lines changed: 4 additions & 0 deletions

File tree

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

Lines changed: 4 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -622,6 +622,8 @@
622622
interrupt-names = "host", "peripheral";
623623
maximum-speed = "high-speed";
624624
dr_mode = "otg";
625+
snps,usb2-gadget-lpm-disable;
626+
snps,usb2-lpm-disable;
625627
};
626628
};
627629

@@ -646,6 +648,8 @@
646648
interrupt-names = "host", "peripheral";
647649
maximum-speed = "high-speed";
648650
dr_mode = "otg";
651+
snps,usb2-gadget-lpm-disable;
652+
snps,usb2-lpm-disable;
649653
};
650654
};
651655

0 commit comments

Comments
 (0)