| Message ID | 20240401133919.4304-1-Enrik.Berkhan@inka.de (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | platform/x86/intel/hid: Ignore power button release in wakeup mode | expand |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On Mon, 2024-04-01 at 15:39 +0200, Enrik Berkhan wrote: > Since commit 0c4cae1bc00d ("PM: hibernate: Avoid missing wakeup > events > during hibernation"), the return value of > hibernation_platform_enter() is > used. This will, for example, cancel every hibernation attempt if a > wakeup > event is registered during the (long) preparation time needed before > entering platform hibernate mode. Oops, too late, already obsoleted by https://lore.kernel.org/all/20240318191153.6978-2-corngood@gmail.com/#t Cheers, Enrik -----BEGIN PGP SIGNATURE----- iQGzBAEBCAAdFiEEbLyQBMI0qAWiF6l31AjqSkbLPKQFAmYK0eIACgkQ1AjqSkbL PKTuzwwAhPy9c5/GuTHkaZJhhWcz5VHjbuY9rvywiI3nswEC/Pkav97wIL2IN8jW 9x4+VGJWCv3q/TlNauaD3T6WaPyulTNI9zcFmIY3Adm73+TEQ3OITmZMTJEv3BPC tgXbs+v0Iuu9G1twpNOrtpQ6aWvwtZJugAN4UOEk+Avx2OIYTc6zoRLTTV+0PMsy 0GlQ3jEQDpB//0ZroP0t9duGtqOIEa6xGfCMOf0ccyyydeVvXjRQOGZ+ZkZ81Egp fWnc0KRb5gzNAgLa4wzksOtu6sBDtXj1jBcrbqwzOuTfr+KBgebfbalHNExPAVxJ 6DYaZ3yPBL81EaUu/QSGFwOodphtkjGvfkGonvtX/bQOSxXEhwAe4wvWeeE0wncN um6YVw+QoBKaIxXEV+jtjkelMazAopf6jp6EDEoqmcfPS17oag2Hkg05oooJNSNc PizbNmYZv6imykUpM8vC9nX54jup9t9MKbNdcMRcU/ReRdhLKm6au4qjWTSxfXXp ll4euik0 =0GKA -----END PGP SIGNATURE-----
diff --git a/drivers/platform/x86/intel/hid.c b/drivers/platform/x86/intel/hid.c index 7457ca2b27a6..9df4a114334a 100644 --- a/drivers/platform/x86/intel/hid.c +++ b/drivers/platform/x86/intel/hid.c @@ -528,6 +528,13 @@ static void notify_handler(acpi_handle handle, u32 event, void *context) */ if (event == 0xce) goto wakeup; + /* + * Other platforms may send spurious notifies for power button + * release while entering hibernation mode. Ignore these in + * wakeup mode. + */ + if (event == 0xcf) + return; /* * Some devices send (duplicate) tablet-mode events when moved
Since commit 0c4cae1bc00d ("PM: hibernate: Avoid missing wakeup events during hibernation"), the return value of hibernation_platform_enter() is used. This will, for example, cancel every hibernation attempt if a wakeup event is registered during the (long) preparation time needed before entering platform hibernate mode. As reported in https://bugzilla.kernel.org/show_bug.cgi?id=218634 several notebooks will fail to hibernate since then, logging "PM: hibernation: Wakeup event detected during hibernation, rolling back." (Looks like mostly Dell systems are affected.) A little investigation has shown that at least one affected device's "Intel 5 button array" sends spurious "Power button release" events (0xCF) in this case. Most probably, this is completely independent from the hibernation_platform_enter() change above, and even with kernels before 6.8, the hibernation was probably not fully prepared before halting the system, i.e., hibernation_platform_enter() may have failed early and the failure has been ignored. It ist he spurious "Power button release" event that leads to a wakeup during the hibernation preparation. Therefore, ignore these events while the intel-hid driver is in "wakeup mode". "Power button press" will still be processed as before to not disturb the wakeup from S2Idle. Only tested on one Dell Inspiron 16 (7640) having BIOS 1.3.0, so far. Link: https://bugzilla.kernel.org/show_bug.cgi?id=218634 Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218634 Signed-off-by: Enrik Berkhan <Enrik.Berkhan@inka.de> --- drivers/platform/x86/intel/hid.c | 7 +++++++ 1 file changed, 7 insertions(+)