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Message-ID: <b9b00e0e-9182-783d-ae30-d67d778ae060@molgen.mpg.de>
Date:   Fri, 18 Mar 2022 13:36:37 +0100
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To:     Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc:     linux-usb@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
        Dell.Client.Kernel@dell.com
From:   Paul Menzel <pmenzel@molgen.mpg.de>
Subject: ucsi_acpi: probe of USBC000:00 fails with ioremap error
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Dear Linux folks,


On a Dell Precision 3540, Linux 5.16.12 reports an ioremap error:

     [    0.000000] Linux version 5.16.0-4-amd64 
(debian-kernel@lists.debian.org) (gcc-11 (Debian 11.2.0-18) 11.2.0, GNU 
ld (GNU Binutils for Debian) 2.38) #1 SMP PREEMPT Debian 5.16.12-1 
(2022-03-08)
     [    0.000000] Command line: BOOT_IMAGE=/vmlinuz-5.16.0-4-amd64 
root=UUID=c9342a55-b747-4442-b2f4-bc03eb7a51cf ro quiet noisapnp 
log_buf_len=2M cryptomgr.notests btusb.enable_autosuspend=y 
random.trust_cpu=on
     […]
     [    0.000000] DMI: Dell Inc. Precision 3540/0M14W7, BIOS 1.15.0 
12/08/2021
     […]
     [   24.230968] videodev: Linux video capture interface: v2.00
     [   24.237747] ioremap error for 0x78e31000-0x78e32000, requested 
0x2, got 0x0
     [   24.238100] ucsi_acpi: probe of USBC000:00 failed with error -12
     […]
     $ sudo more /proc/iomem
     […]
     78a04000-78ea2fff : ACPI Non-volatile Storage
       78e31000-78e31fff : USBC000:00
     […]

This seems to happen on a lot of Dell devices, cf. bug 199741 (ioremap 
error on Dell XPS 9370) [1].


Kind regards,

Paul


[1]: https://bugzilla.kernel.org/show_bug.cgi?id=199741
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