The first patch of the series is intended to fix a "WARNING in ucsi_reset_ppm()" reported in mailing lists [1], in bugzilla [2] and distro-specific bug-trackers [3]. I've got the same splat rather frequently occuring on my system so took the patch [4] proposed by Christian for testing. The second patch is all about timeout issues during the initial PPM reset attempt which I observe every time booting my Lenovo laptop (I'm not an active UCSI user so didn't pay attention to them before but saw this problem while poking around with the patch for WARNING). The timeout issue is not a recent regression and it is reproduced on my laptop back to v5.12 at least. That said, this timeout also sometimes leads to the WARNING in question because it is used for polling the CCI value there as well. Link to the initial RFC version [5] with comments and reviews. [1]: https://lore.kernel.org/linux-usb/Z18hJM55ED2hYJ6D@lappy/ [2]: https://bugzilla.kernel.org/show_bug.cgi?id=219590 [3]: https://retrace.fedoraproject.org/faf/reports/1113325/ [4]: https://lore.kernel.org/linux-usb/Z2Cf1AI8CXao5ZAn@xxxxxxxxxxxxx/ [5]: https://lore.kernel.org/linux-usb/20250206184327.16308-1-boddah8794@xxxxxxxxx/ Christian A. Ehrhardt (1): acpi: typec: ucsi: Introduce a ->poll_cci method Fedor Pchelkin (1): usb: typec: ucsi: increase timeout for PPM reset operations drivers/usb/typec/ucsi/ucsi.c | 12 ++++++------ drivers/usb/typec/ucsi/ucsi.h | 2 ++ drivers/usb/typec/ucsi/ucsi_acpi.c | 21 ++++++++++++++------- drivers/usb/typec/ucsi/ucsi_ccg.c | 1 + drivers/usb/typec/ucsi/ucsi_glink.c | 1 + drivers/usb/typec/ucsi/ucsi_stm32g0.c | 1 + drivers/usb/typec/ucsi/ucsi_yoga_c630.c | 1 + 7 files changed, 26 insertions(+), 13 deletions(-) -- 2.48.1
