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.
Anshuman Gupta
authored
Currently i915 disables d3cold for i915 pci dev. This blocks D3 for i915 gfx pci upstream bridge (VSP). Let's disable d3cold at gfx root port to make sure that i915 gfx VSP can transition to D3 to save some power. We don't need to disable/enable d3cold in rpm, s2idle suspend/resume handlers. Disabling/Enabling d3cold at gfx root port in probe/remove phase is sufficient. Fixes: 1a085e23 ("drm/i915: Disable D3Cold in s2idle and runtime pm") Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by:Anshuman Gupta <anshuman.gupta@intel.com> Reviewed-by:
Badal Nilawar <badal.nilawar@intel.com> Acked-by:
Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220616122249.5007-1-anshuman.gupta@intel.com (cherry picked from commit 138c2fca) Signed-off-by:
Jani Nikula <jani.nikula@intel.com>
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