linux-kernel - Re: [PATCH 1/2] arm64: dts: qcom: x1e80100-crd: Add USB multiport fingerprint reader

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Message-ID: <Z1Fqp4EXxDbLOM4e@hovoldconsulting.com>
Date: Thu, 5 Dec 2024 09:56:07 +0100
From: Johan Hovold <johan@...nel.org>
To: Krishna Kurapati <krishna.kurapati@....qualcomm.com>
Cc: Stephan Gerhold <stephan.gerhold@...aro.org>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Abel Vesa <abel.vesa@...aro.org>,
	Krishna Kurapati <quic_kriskura@...cinc.com>,
	Thinh Nguyen <Thinh.Nguyen@...opsys.com>, linux-usb@...r.kernel.org
Subject: Re: [PATCH 1/2] arm64: dts: qcom: x1e80100-crd: Add USB multiport
 fingerprint reader

On Thu, Dec 05, 2024 at 01:52:08PM +0530, Krishna Kurapati wrote:
> On 12/5/2024 1:46 PM, Johan Hovold wrote:

> > And IIRC I even had to specify more than just the fingerprint reader PHY
> > on the X13s to get it to enumerate. I never had time to fully determine
> > why this was the case though.
> 
> This might need to be checked. Did you attempt adding each phy 
> individually ? Just incase the first PHY is not the one corresponding to 
> the fingerprint reader.

Yes, I tried each PHY in turn, and only enabling the HS and SS PHY for
the fingerprint reader port, but that was not enough.

Johan