linux-kernel - Re: [PATCH] arm64: dts: qcom: x1e78100-t14s: Enable fingerprint reader

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Message-ID: <Z31TZHRjIHiSw-gT@hovoldconsulting.com>
Date: Tue, 7 Jan 2025 17:16:36 +0100
From: Johan Hovold <johan@...nel.org>
To: Abel Vesa <abel.vesa@...aro.org>
Cc: 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>,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: x1e78100-t14s: Enable fingerprint
 reader

On Tue, Jan 07, 2025 at 05:59:36PM +0200, Abel Vesa wrote:
> On 25-01-07 16:19:26, Johan Hovold wrote:

> > But I do indeed see something similar here on resume:
> > 
> > [ 1891.737726] arm-smmu 15000000.iommu: Unhandled context fault: fsr=0x402, iova=0xe3f6ddbec0, fsynr=0x510000, cbfrsynra=0x14e0, cb=3
> > [ 1891.737738] arm-smmu 15000000.iommu: FSR    = 00000402 [Format=2 TF], SID=0x14e0
> > [ 1891.737746] arm-smmu 15000000.iommu: FSYNR0 = 00510000 [S1CBNDX=81 PLVL=0]
> > [ 1891.804342] r8152 7-1:1.0 eth0: carrier on
> > [ 1902.039158] xhci-hcd xhci-hcd.1.auto: xHCI host not responding to stop endpoint command
> > [ 1902.039191] xhci-hcd xhci-hcd.1.auto: xHCI host controller not responding, assume dead
> > [ 1902.039795] xhci-hcd xhci-hcd.1.auto: HC died; cleaning up
> > [ 1902.040050] usb 1-1: PM: dpm_run_callback(): usb_dev_resume returns -5
> > [ 1902.040272] usb 1-1: PM: failed to resume async: error -5
> > [ 1902.581479] OOM killer enabled.
> > [ 1902.586673] Restarting tasks ...
> > [ 1902.587565] usb 1-1: USB disconnect, device number 2
> 
> Turns out it is the GDSC that has power status flags PWRSTS_OFF_ON when it
> should've had PWRSTS_RET_ON. Sent a fix here:
> 
> https://lore.kernel.org/all/20250107-x1e80100-clk-gcc-fix-usb2-gdsc-pwrsts-v1-1-e15d1a5e7d80@linaro.org/
> 
> With this patch, the above resume issue goes away entirely.

Indeed it does.

Johan