c4d0510b81
In order to correctly pause audio on suspend, amps using external boost require parts of the pause sequence to be called for all amps before moving on to the next steps. For example, as part of pausing the audio, the VSPK GPIO must be disabled, but since this GPIO is controlled by one amp, but controls the boost for all amps, it is required to separate the calls. During playback this is achieved by using the pre and post playback hooks, however during system suspend, this is not possible, so to separate the calls, we use both the .prepare and .suspend calls to pause the audio. Currently, for this reason, we do not restart audio on system resume. However, we can support this by relying on the playback hook to resume playback after system suspend. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230721151816.2080453-10-sbinding@opensource.cirrus.com Signed-off-by: Takashi Iwai <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 Restructured Text 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.