6c07be8fe9
Adds support for a low-power Hibernation State. Add support for a low-power hibernation state for the DSP. In this state the DSP RAM contents are maintained, such that firmware does not need to be re-downloaded, but the rest of the chip's register state is lost. Entry to this state is achieved via the register interface (either by an external driver using the control port, or the programmable DSP). Exit from this state is triggered by activity on device GPIO pins, intended SPI transaction, or I2C transaction with intended slave address. Signed-off-by: Vlad Karpovich <vkarpovi@opensource.cirrus.com> Link: https://lore.kernel.org/r/167933511185.26.10641185496218226278@mailman-core.alsa-project.org Signed-off-by: Mark Brown <broonie@kernel.org>
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.