platform/x86: thinkpad_acpi: Stop setting acpi_device_class()

To facilitate the removal of device_class from struct acpi_device_pnp
in the future, make the driver store the device class string used for
generating ACPI netlink events in a new device_class field in struct
ibm_struct.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/23182921.EfDdHjke4D@rafael.j.wysocki
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Rafael J. Wysocki 2026-07-03 13:30:00 +02:00 • committed by Ilpo Järvinen
commit ddbbe8b75a
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