Re: [PATCH v4] bus: mhi: Fix race while handling SYS_ERR at power up

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Hey Mani,

On Wed, Nov 24, 2021 at 2:22 PM Manivannan Sadhasivam
<manivannan.sadhasivam@xxxxxxxxxx> wrote:
>
> Some devices tend to trigger SYS_ERR interrupt while the host handling
> SYS_ERR state of the device during power up. This creates a race
> condition and causes a failure in booting up the device.
>
> The issue is seen on the Sierra Wireless EM9191 modem during SYS_ERR
> handling in mhi_async_power_up(). Once the host detects that the device
> is in SYS_ERR state, it issues MHI_RESET and waits for the device to
> process the reset request. During this time, the device triggers SYS_ERR
> interrupt to the host and host starts handling SYS_ERR execution.
>
> So by the time the device has completed reset, host starts SYS_ERR
> handling. This causes the race condition and the modem fails to boot.
>
> Hence, register the IRQ handler only after handling the SYS_ERR check
> to avoid getting spurious IRQs from the device.
>
> Cc: stable@xxxxxxxxxxxxxxx
> Fixes: e18d4e9fa79b ("bus: mhi: core: Handle syserr during power_up")
> Reported-by: Aleksander Morgado <aleksander@xxxxxxxxxxxxx>
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> ---
>
> Changes in v4:
>
> * Reverted the change that moved BHI_INTVEC as that was causing issue as
>   reported by Aleksander.
>
> Changes in v3:
>
> * Moved BHI_INTVEC setup after irq setup
> * Used interval_us as the delay for the polling API
>
> Changes in v2:
>
> * Switched to "mhi_poll_reg_field" for detecting MHI reset in device.
>

So far so good, works without issues in both reboots and cold boots.
Thanks!

Posting here an example log for reference:

root@OpenWrt:~# dmesg | grep mhi
[    7.022756] mhi-pci-generic 0000:01:00.0: MHI PCI device found: sierra-em919x
[    7.029931] mhi-pci-generic 0000:01:00.0: BAR 0: assigned [mem
0x600000000-0x600000fff 64bit]
[    7.038495] mhi-pci-generic 0000:01:00.0: enabling device (0000 -> 0002)
[    7.045311] mhi-pci-generic 0000:01:00.0: using shared MSI
[    7.051420] mhi mhi0: Requested to power ON
[    7.055637] mhi mhi0: Attempting power on with EE: PASS THROUGH,
state: SYS ERROR
[    7.176024] mhi mhi0: Power on setup success
[    7.176082] mhi mhi0: Handling state transition: PBL
[    7.180322] mhi mhi0: local ee: INVALID_EE state: RESET device ee:
MISSION MODE state: READY
[    7.193852] mhi mhi0: Device in READY State
[    7.198043] mhi mhi0: Initializing MHI registers
[    7.202712] mhi mhi0: Wait for device to enter SBL or Mission mode
[   15.351002] mhi mhi0: local ee: MISSION MODE state: READY device
ee: MISSION MODE state: READY
[   15.509984] mhi mhi0: State change event to state: M0
[   15.510001] mhi mhi0: local ee: MISSION MODE state: READY device
ee: MISSION MODE state: M0
[   15.523459] mhi mhi0: Received EE event: MISSION MODE
[   15.523463] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   15.536629] mhi mhi0: Handling state transition: MISSION MODE
[   15.542393] mhi mhi0: Processing Mission Mode transition
[   15.549246] mhi_net mhi0_IP_HW0: 100: Updating channel state to: START
[   15.647776] mhi_net mhi0_IP_HW0: 100: Channel state change to START
successful
[   15.647795] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   15.663196] mhi_net mhi0_IP_HW0: 101: Updating channel state to: START
[   15.719309] mhi_net mhi0_IP_HW0: 101: Channel state change to START
successful
[   15.719314] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   17.851014] mhi mhi0: Allowing M3 transition
[   17.855347] mhi mhi0: Waiting for M3 completion
[   17.987550] mhi mhi0: State change event to state: M3
[   17.987568] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M3
[   21.851920] mhi_wwan_ctrl mhi0_DUN: 32: Updating channel state to: START
[   21.876065] mhi mhi0: Entered with PM state: M3, MHI state: M3
[   21.900513] mhi mhi0: State change event to state: M0
[   21.900538] mhi mhi0: local ee: MISSION MODE state: M3 device ee:
MISSION MODE state: M0
[   21.921710] mhi_wwan_ctrl mhi0_DUN: 32: Channel state change to
START successful
[   21.921713] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   21.937308] mhi_wwan_ctrl mhi0_DUN: 33: Updating channel state to: START
[   21.946170] mhi_wwan_ctrl mhi0_DUN: 33: Channel state change to
START successful
[   21.946172] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   21.981308] mhi_wwan_ctrl mhi0_DIAG: 4: Updating channel state to: START
[   21.990184] mhi_wwan_ctrl mhi0_DIAG: 4: Channel state change to
START successful
[   21.990186] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   22.005697] mhi_wwan_ctrl mhi0_DIAG: 5: Updating channel state to: START
[   22.014547] mhi_wwan_ctrl mhi0_DIAG: 5: Channel state change to
START successful
[   22.014549] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   22.043376] mhi_wwan_ctrl mhi0_DIAG: mhi_ul_xfer_cb: status: 0 xfer_len: 5
[   22.043380] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   22.050277] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   22.058371] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: 0
receive_len: 58
[   22.073988] mhi_wwan_ctrl mhi0_DIAG: 5: Updating channel state to: RESET
[   22.082292] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   22.082294] mhi_wwan_ctrl mhi0_DIAG: 5: Channel state change to
RESET successful
[   22.097778] mhi mhi0: Marking all events for chan: 5 as stale
[   22.103523] mhi mhi0: Finished marking events as stale events
[   22.109271] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.116676] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.124076] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.131476] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.138874] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.146274] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.153672] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.161071] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.168470] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.175870] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.183268] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.190666] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.198065] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.205463] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.212862] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.220260] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.227660] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.235059] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.242457] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.249855] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.257253] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.264651] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.272049] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.279448] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.286846] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.294245] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.301643] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.309041] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.316440] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.323838] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.331237] mhi_wwan_ctrl mhi0_DIAG: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   22.338666] mhi_wwan_ctrl mhi0_DIAG: 5: successfully reset
[   22.344157] mhi_wwan_ctrl mhi0_DIAG: 4: Updating channel state to: RESET
[   22.352753] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   22.352758] mhi_wwan_ctrl mhi0_DIAG: 4: Channel state change to
RESET successful
[   22.368356] mhi mhi0: Marking all events for chan: 4 as stale
[   22.374106] mhi mhi0: Finished marking events as stale events
[   22.379910] mhi_wwan_ctrl mhi0_DIAG: 4: successfully reset
[   22.388072] mhi_wwan_ctrl mhi0_QMI: 14: Updating channel state to: START
[   22.397188] mhi_wwan_ctrl mhi0_QMI: 14: Channel state change to
START successful
[   22.397190] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   22.412690] mhi_wwan_ctrl mhi0_QMI: 15: Updating channel state to: START
[   22.424017] mhi_wwan_ctrl mhi0_QMI: 15: Channel state change to
START successful
[   22.424021] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   25.917106] mhi_wwan_ctrl mhi0_DUN: mhi_ul_xfer_cb: status: 0 xfer_len: 4
[   25.917125] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   25.935842] mhi_wwan_ctrl mhi0_DUN: mhi_ul_xfer_cb: status: 0 xfer_len: 4
[   25.935852] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   25.942645] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: 0 receive_len: 3
[   25.950734] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   25.957768] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: 0 receive_len: 6
[   25.972897] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: 0 receive_len: 3
[   25.979950] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: 0 receive_len: 6
[   25.979953] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   25.995084] mhi_wwan_ctrl mhi0_DUN: mhi_ul_xfer_cb: status: 0 xfer_len: 9
[   25.995269] mhi_wwan_ctrl mhi0_DUN: 33: Updating channel state to: RESET
[   26.001872] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: 0 receive_len: 8
[   26.001879] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: 0 receive_len: 39
[   26.024415] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   26.024418] mhi_wwan_ctrl mhi0_DUN: 33: Channel state change to
RESET successful
[   26.039893] mhi mhi0: Marking all events for chan: 33 as stale
[   26.045723] mhi mhi0: Finished marking events as stale events
[   26.051468] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.058780] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.066092] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.073404] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.080715] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.088027] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.095337] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.102650] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.109965] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.117279] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.124589] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.131900] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.139211] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.146521] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.153831] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.161142] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.168452] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.175763] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.183073] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.190385] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.197695] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.205006] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.212315] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.219627] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.226937] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.234248] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.241558] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.248869] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   26.256206] mhi_wwan_ctrl mhi0_DUN: 33: successfully reset
[   26.261695] mhi_wwan_ctrl mhi0_DUN: 32: Updating channel state to: RESET
[   26.270660] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   26.270669] mhi_wwan_ctrl mhi0_DUN: 32: Channel state change to
RESET successful
[   26.286159] mhi mhi0: Marking all events for chan: 32 as stale
[   26.291992] mhi mhi0: Finished marking events as stale events
[   26.297761] mhi_wwan_ctrl mhi0_DUN: 32: successfully reset
[   30.355529] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 12
[   30.355543] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   30.362450] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 12
[   30.370546] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   30.377411] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 12
[   30.392643] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 12
[   30.399531] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0
receive_len: 228
[   30.406757] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 12
[   30.413636] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0
receive_len: 228
[   30.420863] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 12
[   30.427754] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0
receive_len: 228
[   30.434992] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 12
[   30.441882] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0
receive_len: 228
[   30.449115] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 12
[   30.456012] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0
receive_len: 228
[   30.463268] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0
receive_len: 228
[   30.470516] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0
receive_len: 228
[   30.479754] mhi_wwan_ctrl mhi0_QMI: 15: Updating channel state to: RESET
[   30.489207] mhi_wwan_ctrl mhi0_QMI: 15: Channel state change to
RESET successful
[   30.489210] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   30.504704] mhi mhi0: Marking all events for chan: 15 as stale
[   30.510536] mhi mhi0: Finished marking events as stale events
[   30.516284] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.523598] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.530911] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.538224] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.545535] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.552847] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.560157] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.567468] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.574779] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.582091] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.589402] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.596713] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.604024] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.611335] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.618645] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.625957] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.633291] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.640618] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.647946] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.655297] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.662627] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.669949] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.677262] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.684572] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.691888] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.699199] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.706509] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.713820] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.721131] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.728441] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.735752] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: -107
receive_len: 0
[   30.743092] mhi_wwan_ctrl mhi0_QMI: 15: successfully reset
[   30.748605] mhi_wwan_ctrl mhi0_QMI: 14: Updating channel state to: RESET
[   30.761269] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   30.769375] mhi_wwan_ctrl mhi0_QMI: 14: Channel state change to
RESET successful
[   30.776780] mhi mhi0: Marking all events for chan: 14 as stale
[   30.782613] mhi mhi0: Finished marking events as stale events
[   30.788371] mhi_wwan_ctrl mhi0_QMI: 14: successfully reset
[   30.794771] mhi_wwan_ctrl mhi0_QMI: 14: Updating channel state to: START
[   30.803532] mhi_wwan_ctrl mhi0_QMI: 14: Channel state change to
START successful
[   30.803535] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   30.819038] mhi_wwan_ctrl mhi0_QMI: 15: Updating channel state to: START
[   30.828331] mhi_wwan_ctrl mhi0_QMI: 15: Channel state change to
START successful
[   30.828333] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   31.925717] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 12
[   31.925723] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   31.932639] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   31.940747] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 12
[   31.955964] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0
receive_len: 228
[   31.978521] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 16
[   31.978523] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   31.985418] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   31.993503] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 24
[   32.012893] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.012897] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.019777] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 77
[   32.027861] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.054892] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 16
[   32.054894] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.061787] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.069867] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 17
[   32.084825] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 24
[   32.091966] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 24
[   32.123615] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 16
[   32.123618] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.130510] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.138594] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 24
[   32.168928] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.168935] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 16
[   32.183929] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.183937] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 24
[   32.203362] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 16
[   32.203363] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.210246] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.218328] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 24
[   32.236614] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 16
[   32.236616] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.243512] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.251618] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 24
[   32.269860] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 16
[   32.269862] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.276745] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.284834] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 24
[   32.304246] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 16
[   32.304247] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.311135] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.319241] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 24
[   32.339188] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 16
[   32.339193] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.346078] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 24
[   32.354158] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.369801] mhi_wwan_ctrl mhi0_DUN: 32: Updating channel state to: START
[   32.379359] mhi_wwan_ctrl mhi0_DUN: 32: Channel state change to
START successful
[   32.379361] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.394877] mhi_wwan_ctrl mhi0_DUN: 33: Updating channel state to: START
[   32.404051] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.404052] mhi_wwan_ctrl mhi0_DUN: 33: Channel state change to
START successful
[   32.423401] mhi_wwan_ctrl mhi0_DUN: mhi_ul_xfer_cb: status: 0 xfer_len: 6
[   32.423403] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.430201] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.438282] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.453242] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0
receive_len: 294
[   32.460474] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: 0 receive_len: 5
[   32.467535] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: 0 receive_len: 6
[   32.467538] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.482675] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.489557] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.489560] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 26
[   32.489567] mhi_wwan_ctrl mhi0_DUN: mhi_ul_xfer_cb: status: 0 xfer_len: 6
[   32.504790] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.511569] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: 0 receive_len: 6
[   32.526694] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.533572] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0
receive_len: 197
[   32.533574] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.548873] mhi_wwan_ctrl mhi0_DUN: mhi_ul_xfer_cb: status: 0 xfer_len: 11
[   32.555749] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: 0 receive_len: 6
[   32.555752] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.562793] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.577748] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.577750] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 52
[   32.577755] mhi_wwan_ctrl mhi0_DUN: mhi_ul_xfer_cb: status: 0 xfer_len: 6
[   32.592974] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.599753] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: 0 receive_len: 9
[   32.614877] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.621756] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.621758] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 29
[   32.621765] mhi_wwan_ctrl mhi0_DUN: mhi_ul_xfer_cb: status: 0 xfer_len: 7
[   32.629862] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.636985] mhi_wwan_ctrl mhi0_DUN: mhi_dl_xfer_cb: status: 0 receive_len: 9
[   32.643764] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.651846] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.673835] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 77
[   32.684996] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 27
[   32.684998] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.691894] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.699994] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 20
[   32.715206] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 29
[   32.726784] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.726788] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.733667] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 26
[   32.741756] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.759982] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.759985] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.766864] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 42
[   32.774951] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.794333] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.794337] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.801215] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0
receive_len: 145
[   32.809294] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.828654] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.828657] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.835554] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.843638] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 24
[   32.862183] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 20
[   32.862186] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.869074] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.877162] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 27
[   32.896556] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.896558] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.903446] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.911532] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 12
[   32.926749] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0
receive_len: 116
[   32.938214] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.938223] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.945134] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0
receive_len: 116
[   32.953218] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.972615] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   32.972619] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   32.979497] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 20
[   32.987579] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   33.005791] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   33.005793] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   33.012673] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   33.020759] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 90
[   35.011999] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   35.012012] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   35.018924] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 90
[   35.027016] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   35.034131] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 12
[   37.011548] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   37.011554] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   37.018476] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   37.026567] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 90
[   39.012483] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   39.012497] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   39.019413] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 90
[   39.027510] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   39.034617] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 12
[   41.010833] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   41.010839] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   41.017760] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   41.025856] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 90
[   43.010424] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   43.010431] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   43.017356] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   43.025455] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 90
[   45.009911] mhi_wwan_ctrl mhi0_QMI: mhi_ul_xfer_cb: status: 0 xfer_len: 13
[   45.009918] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   45.016839] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0
[   45.024933] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 90
[   47.523933] mhi mhi0: Allowing M3 transition
[   47.528247] mhi mhi0: Waiting for M3 completion
[   47.569544] mhi mhi0: State change event to state: M3
[   47.569567] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M3
[   48.632075] mhi mhi0: Entered with PM state: M3, MHI state: M3
[   48.650239] mhi mhi0: State change event to state: M0
[   48.650247] mhi mhi0: local ee: MISSION MODE state: M3 device ee:
MISSION MODE state: M0
[   48.667040] mhi_wwan_ctrl mhi0_QMI: mhi_dl_xfer_cb: status: 0 receive_len: 12
[   48.667043] mhi mhi0: local ee: MISSION MODE state: M0 device ee:
MISSION MODE state: M0




-- 
Aleksander
https://aleksander.es



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