linux-kernel - Re: [PATCH v3 5/5] arm64: dts: ti: k3-am62*: Add PHY2 region to USB wrapper node

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Date: Mon, 8 Apr 2024 11:52:00 +0200
From: Francesco Dolcini <francesco@...cini.it>
To: Roger Quadros <rogerq@...nel.org>
Cc: nm@...com, vigneshr@...com, afd@...com, kristo@...nel.org,
	robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
	conor+dt@...nel.org, srk@...com, r-gunasekaran@...com, b-liu@...com,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 5/5] arm64: dts: ti: k3-am62*: Add PHY2 region to USB
 wrapper node

Hello Roger,

On Thu, Feb 01, 2024 at 02:03:32PM +0200, Roger Quadros wrote:
> Add PHY2 register space to USB wrapper node. This is required
> to deal with Errata i2409.
> 
> Signed-off-by: Roger Quadros <rogerq@...nel.org>

What's the status/plan for this? v6.9-rc misses it and therefore we have
this error in the logs (and of course, we miss the workaround).

[    0.583305] dwc3-am62 f910000.dwc3-usb: invalid resource (null)
[    0.589304] dwc3-am62 f910000.dwc3-usb: can't map PHY IOMEM resource. Won't apply i2409 fix.

Apart for the error message, the change here seems required for the
hardware to properly function (IOW IMHO it should be back-ported to stable).

Francesco