mainlining shenanigans
61e285caf4
The DSP device substates such as D0I0/D0I3 are platform-specific. Therefore, the d0_substate field of struct snd_sof_dev is replaced with the dsp_power_state field which represents the current state of the DSP. This field holds both the device state and the platform-specific substate values. With the DSP device substates being platform-specific, the DSP power state transitions need to be performed in the platform-specific suspend/resume ops as well. In order to achieve this, the ops signature has to be modified to pass the target device state as an argument. The target substate will be determined by the platform-specific ops before performing the transition. For example, in the case of the system suspending to S0IX, the top-level SOF device suspend callback needs to only determine if the DSP will be entering D3 or remain in D0. The target substate in case the device needs to remain in D0 (D0I0 or D0I3) will be determined by the platform-specific suspend op. With the addition of the extended set of power states for the DSP, the set_power_state op for HDA platforms has to be extended to handle only the appropriate state transitions. So, the implementation for the Intel HDA platforms is also modified. Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20200129220726.31792-6-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> |
||
|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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 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.