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| author | Colin Percival <cperciva@FreeBSD.org> | 2024-10-22 18:53:55 +0000 |
|---|---|---|
| committer | Colin Percival <cperciva@FreeBSD.org> | 2024-10-31 21:26:34 +0000 |
| commit | 9709bda03cd0f20eba0ba4276fc3c2e06354a54f (patch) | |
| tree | fd7ff61a2dddb9ae10237efd9fb20d5736fa49ee /tests/atf_python | |
| parent | 310743c4ccc545d58401cb9fb7761432e12a9fb5 (diff) | |
GPIO: Add ACPI _AEI support
Changes to acpi_gpiobus.c handle discovering and parsing the _AEI
objects and storing necessary data in device ivars. A new gpioaei.c
file implements the device, which simply requests an interrupt when
the pin is triggered and invokes the appropriate _Exx or _Lxx ACPI
method.
This makes the GPIO "power button" work on arm64 Graviton systems,
allowing EC2 "Stop"/"Reboot" instance calls to be handled cleanly.
(Prior to this change, those requests would time out after 4 minutes
and the instance would be forcibly killed.)
Reviwed by: imp, andrew, Ahmad Khalifa
MFC after: 3 days
Sponsored by: Amazon
Differential Revision: https://reviews.freebsd.org/D47253
Co-authored-by: Andrew Turner <andrew@FreeBSD.org>
Diffstat (limited to 'tests/atf_python')
0 files changed, 0 insertions, 0 deletions