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Andreas Kemnade 9325895e41 cpufreq: fix using cpufreq-dt as module 
commit f1f010c9d9 upstream.

This driver can be built as a module since commit 3b062a0869 ("cpufreq:
dt-platdev: Support building as module"), but unfortunately this caused
a regression because the cputfreq-dt-platdev.ko module does not autoload.

Usually, this is solved by just using the MODULE_DEVICE_TABLE() macro to
export all the device IDs as module aliases. But this driver is special
due how matches with devices and decides what platform supports.

There are two of_device_id lists, an allow list that are for CPU devices
that always match and a deny list that's for devices that must not match.

The driver registers a cpufreq-dt platform device for all the CPU device
nodes that either are in the allow list or contain an operating-points-v2
property and are not in the deny list.

Enforce builtin compile of cpufreq-dt-platdev to make autoload work.

Fixes: 3b062a0869 ("cpufreq: dt-platdev: Support building as module")
Link: https://lore.kernel.org/all/20241104201424.2a42efdd@akair/
Link: https://lore.kernel.org/all/20241119111918.1732531-1-javierm@redhat.com/
Cc: stable@vger.kernel.org
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Reported-by: Radu Rendec <rrendec@redhat.com>
Reported-by: Javier Martinez Canillas <javierm@redhat.com>
[ Viresh: Picked commit log from Javier, updated tags ]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-02-17 10:05:02 +01:00
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README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.