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26e2b58148
this is hw workaround to wake up azalia from d3. display asic and azalia are two different pci devices. while display asic wake from d3, current hw does not send signal to azalia. workaround: display driver ask smu send message to azalia device to let azalia wake up. Defintion of SMU message, like PPSMC_MSG_BacroAudioD3PME, is per asic. It is shared by different OS. Signed-off-by: hersen wu <hersenxs.wu@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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.