Hi Paul, On Fri, Mar 18, 2022 at 01:36:37PM +0100, Paul Menzel wrote: > 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@xxxxxxxxxxxxxxxx) (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]. I'm not sure if this helps, but I'm going to change the ioremap() call to memremap() soon in any case in this driver. Can you test the attached patch? thanks, -- heikki
