linux-kernel - mhi resume failure on reboot with 6.13-rc2

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Message-ID: <Z1me8iaK7cwgjL92@hovoldconsulting.com>
Date: Wed, 11 Dec 2024 15:17:22 +0100
From: Johan Hovold <johan@...nel.org>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc: mhi@...ts.linux.dev, linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: mhi resume failure on reboot with 6.13-rc2

Hi Mani,

I just hit the following modem related error on reboot of the x1e80100
CRD for the second time with 6.13-rc2:

	[  138.348724] shutdown[1]: Rebooting.
        [  138.545683] arm-smmu 3da0000.iommu: disabling translation
        [  138.582505] mhi mhi0: Resuming from non M3 state (SYS ERROR)
        [  138.588516] mhi-pci-generic 0005:01:00.0: failed to resume device: -22
        [  138.595375] mhi-pci-generic 0005:01:00.0: device recovery started
        [  138.603841] wwan wwan0: port wwan0qcdm0 disconnected
        [  138.609508] wwan wwan0: port wwan0mbim0 disconnected
        [  138.615137] wwan wwan0: port wwan0qmi0 disconnected
        [  138.702604] mhi mhi0: Requested to power ON
        [  139.027494] mhi mhi0: Power on setup success
        [  139.027640] mhi mhi0: Wait for device to enter SBL or Mission mode

and then the machine hangs.

Do you know if there are any changes since 6.12 that could cause this?

Johan