linux-kernel - Re: [PATCH v5 05/12] usb: cdns3: add quirk to platform data for reset-on-resume

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Message-ID: <8b93b8e6-b9fd-4564-b17b-514fbab55a40@kernel.org>
Date: Mon, 5 Aug 2024 16:49:34 +0300
From: Roger Quadros <rogerq@...nel.org>
To: Théo Lebrun <theo.lebrun@...tlin.com>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Peter Chen <peter.chen@...nel.org>,
 Pawel Laszczak <pawell@...ence.com>, Mathias Nyman
 <mathias.nyman@...el.com>, Nishanth Menon <nm@...com>,
 Vignesh Raghavendra <vigneshr@...com>, Tero Kristo <kristo@...nel.org>
Cc: linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 Kevin Hilman <khilman@...nel.org>,
 Grégory Clement <gregory.clement@...tlin.com>,
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v5 05/12] usb: cdns3: add quirk to platform data for
 reset-on-resume



On 26/07/2024 21:17, Théo Lebrun wrote:
> The cdns3 host role does not care about reset-on-resume. xHCI however
> reconfigures itself in silence rather than printing a warning about a
> resume error. Related warning example:
> 
>   [   16.017462] xhci-hcd xhci-hcd.1.auto: xHC error in resume, USBSTS 0x401, Reinit
> 
> Allow passing a CDNS3_RESET_ON_RESUME quirk flag from cdns3 pdata down
> to xHCI pdata. The goal is to allow signaling about reset-on-resume
> behavior from platform wrapper drivers.
> 
> When used, remote wakeup is not expected to work.
> 
> Acked-by: Peter Chen <peter.chen@...nel.org>
> Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>

Reviewed-by: Roger Quadros <rogerq@...nel.org>