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| author | Vibhor Goel <vibhor1102@gmail.com> | 2026-10-03 22:10:19 +0530 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-10-12 19:55:53 +0200 |
| commit | 029d11df81278d99d8a0441ff45a5dfdfce0168b (patch) | |
| tree | 10ced052de3b68837b4928663451ca689285edb4 /include/uapi/linux | |
| parent | 24a19b953e2a3d0ea5a8c4951a0ab8f32720c907 (diff) | |
| download | linux-next-029d11df81278d99d8a0441ff45a5dfdfce0168b.tar.gz linux-next-029d11df81278d99d8a0441ff45a5dfdfce0168b.zip | |
ACPI: dock: Retry probing battery docks after hotplug
On a ThinkPad T480 booted with the removable battery absent, reinserting
that battery can leave BAT1 missing from /sys/class/power_supply even
after firmware sends an ACPI add notification.
The battery dock platform device already exists, but its driver did not
bind while the battery was absent. During hotplug, acpi_bus_scan()
updates the ACPI device and attempts to attach it on the ACPI bus.
acpi_create_platform_device() does not create another platform device
because the existing physical node is still associated with the ACPI
device. Consequently, the existing platform device remains unbound.
Retry probing the battery dock platform device after hotplug_dock_devices()
has refreshed the ACPI state. Restrict this to battery docks. If the
platform device is already bound, device_initial_probe() leaves that
binding in place.
Signed-off-by: Vibhor Goel <vibhor1102@gmail.com>
[ rjw: Add empty code line after a conditional ]
Link: https://patch.msgid.link/20261003164019.11195-1-vibhor1102@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/uapi/linux')
0 files changed, 0 insertions, 0 deletions