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Until now, we use "patch_ops" embedded in hda_codec object for defining the callbacks that are used in various places to manage HD-audio codec. But from the device driver POV, this should have been rather the driver ops, instead of the callbacks in the codec object. This patch defines the driver ops for HD-audio codec driver as the replacement. We reuse the same struct hda_codec_ops, and this is put as hda_codec_driver.ops. When the driver->ops callbacks are defined, they are called primarily instead of codec->patch_ops callbacks. With converting to the driver ops, there is no need to pass the ugly patch_ops handling in hda_device_id tables. That is, driver_data field of hda_device_id becomes really optional and it can be used for passing the codec-specific data (e.g. specifying a model). The codec entries after the conversion should be with HDA_CODEC_ID() and co, instead of the former HDA_CODEC_ENTRY(). Once after converting all codec drivers to use driver ops, we can get rid of codec patch_ops. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20250709160434.1859-10-tiwai@suse.de
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.