Hi, On 2/9/22 06:35, Heikki Krogerus wrote: > On Mon, Feb 07, 2022 at 09:01:50AM -0800, Randy Dunlap wrote: >> >> >> On 2/7/22 03:35, Heikki Krogerus wrote: >>> On Sun, Feb 06, 2022 at 05:28:48PM -0800, Randy Dunlap wrote: >>>> Hi, >>>> >>>> On my custom 5.16, 5.17-rc1, and 5.17-rc2 kernels I am seeing >>>> ucsi_acpi_platform_driver_init() take around 60 seconds. >>>> >>>> [ 2.733138] calling ucsi_acpi_platform_driver_init+0x0/0x1000 [ucsi_acpi] @ 470 >>>> [ 64.603126] initcall ucsi_acpi_platform_driver_init+0x0/0x1000 [ucsi_acpi] returned 0 after 58690601 usecs >>> >>> I don't have any ideas what could be causing it to take that long? >>> That driver does not really do anything else except it queues a work >>> that then actually initialises the UCSI interface. The probe() in that >>> driver (ucsi_acpi) does not stay and wait for the initialisation to >>> finish. >>> >>> Can you check are the USB Type-C devices appearing under >>> /sys/class/typec faster then that? >> >> One entry there: >> >> lrwxrwxrwx 1 root root 0 Feb 7 08:57 port0 -> ../../devices/platform/USBC000:00/typec/port0/ >> >> Do you want more than that? > > You should have a port there for every physical USB Type-C > port on you system. Yes, I have only one Type-C port. > I can't really tell from that was the port registered before > ucsi_acpi_platform_driver_init() finished or not. Sorry, I didn't understand the first time... I rebooted and checked /sys/class/typec multiple times. It was empty until the end of ucsi_acpi_platform_driver_init() roughly 55 seconds later. >>> Also, if the driver is a module, can you check does it always take >>> that long if you unload and the reload the module (ucsi_acpi.ko)? >>> >>>> Did I miss some other (needed) Kconfig option or is something missing in >>>> my system's ACPI tables e.g.? >>> >>> There shouldn't be any dependencies that are missing, but it would not >>> hurt to take a look at your acpi tables. Can you send acpidump? >>> >>> Though, I doubt there is anything missing from there either. >>> >>>> DMI: Dell Inc. Inspiron 15 5510/076F7Y, BIOS 2.4.1 11/05/2021 >> >> The (large) acpidump output is here: >> http://www.infradead.org/~rdunlap/doc/dell15-acpidump.out.gz > > Thanks! > > Br, > -- ~Randy
