Re: [PATCH v2 00/10] platform/x86: classmate-laptop: Bind to platform devices instead of ACPI ones

[Thadeu Lima de Souza Cascardo]

On Mon, May 11, 2026 at 10:01:45PM +0200, Rafael J. Wysocki wrote:
> Hi All,
> 
> This is an update of
> 
> https://lore.kernel.org/linux-acpi/1956046.tdWV9SEqCh@rafael.j.wysocki/
> 
> sent mostly because I have realized that using devm_kzalloc() in the first
> patch simplifies things going forward, but also it adds ACPI companion
> checks against NULL at probe time that were missing previously.
> 
> 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 5 subdrivers in the platform x86
> classmate-laptop driver.
> 
> The first 5 patches in the series are preliminary.
> 
> Patch [01/10] converts two subdrivers in classmate-laptop to using
> devm_kzalloc() for allocating memory which helps to avoid memory leaks
> during driver removal.
> 
> Patch [02/10] modifies 2 subdrivers in classmate-laptop so that their probe
> rollback code ordering is the same as the removal one.
> 
> Patches [03-04/10] change the type of the first argument in 2 helper functions
> in classmate-laptop and rename them.
> 
> Patch [05/10] updates classmate-laptop subdrivers to install their own ACPI
> notify handlers instead of using the .notify() callback in struct acpi_driver.
> 
> The remaining patches convert the classmate-laptop subdrivers to platform
> drivers, one at a time.
> 
> Patch [06/10] converts the accel-v4 subdriver in classmate-laptop to using
> struct platform_driver for device binding.
> 
> Patch [07/10] converts the accel subdriver in classmate-laptop to using
> struct platform_driver for device binding.
> 
> Patch [08/10] converts the tablet subdriver in classmate-laptop to using
> struct platform_driver for device binding.
> 
> Patch [09/10] converts the ipml subdriver in classmate-laptop to using
> struct platform_driver for device binding.
> 
> Patch [10/10] converts the keys subdriver in classmate-laptop to using
> struct platform_driver for device binding.
> 
> Thanks!
> 
> 
> 
> 

For the whole series:

Acked-by: Thadeu Lima de Souza Cascardo <cascardo@xxxxxxxxxx>