[PATCH v1 0/3] platform/x86: sony-laptop: Bind to a platform device instead of an ACPI one

From: Rafael J. Wysocki

Date: Thu Mar 12 2026 - 07:36:19 EST


Hi All,

This series is part of a larger effort to switch over all drivers using
the struct acpi_driver interface to the more common struct platform_driver
interface and eliminate the former. The background is explained in
Documentation/driver-api/acpi/acpi-drivers.rst and in the changelog of
the patch that introduced the above document:

https://lore.kernel.org/all/2396510.ElGaqSPkdT@rafael.j.wysocki/

The bottom line is that the kernel would be better off without struct
acpi_driver and so it is better to get rid of it.

This series carries out driver conversion of the platform x86 Sony
Notebook Control driver.

Patch [1/3] updates the driver to install an ACPI notify handler by itself
instead of using the .notify() callback from struct acpi_driver, which is
requisite for the driver conversion.

Patch [2/3] converts the NC part of the driver to using struct
platform_driver for device binding.

Patch [3/3] converts the PIC part of the driver to using struct
platform_driver for device binding.

Thanks!