linux-kernel - Re: [PATCH v7 3/3] arm64: dts: ti: k3-am62a: Disable USB LPM

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Date: Tue, 16 Apr 2024 12:03:55 +0530
From: Ravi Gunasekaran <r-gunasekaran@...com>
To: Roger Quadros <rogerq@...nel.org>, Nishanth Menon <nm@...com>,
        Vignesh
 Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>, Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
CC: Andrew Davis <afd@...com>, <b-liu@...com>, <srk@...com>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Ravi Gunasekaran <r-gunasekaran@...com>
Subject: Re: [PATCH v7 3/3] arm64: dts: ti: k3-am62a: Disable USB LPM



On 4/12/2024 5:32 PM, Roger Quadros wrote:
> 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@...nel.org>
> ---
> Changelog:
> v7 - Rebased to v6.9-rc1
> v6 - Rebased on next-20240226
> v5 - new patch
> ---

Reviewed-by: Ravi Gunasekaran <r-gunasekaran@...com>

>