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Since multiple connectors may run intel_dp_aux_xfer conncurrently, a single global pm_qos does not suffice. (One connector may disable the dma-latency boost prematurely while the second is still depending on it.) Instead of a single global pm_qos, track the pm_qos request for each intel_dp. v2: Move the pm_qos setup/teardown to intel_dp_aux_init/fini Fixes:9ee32fea5f("drm/i915: irq-drive the dp aux communication") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Imre Deak <imre.deak@intel.com> Reviewed-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201230202309.23982-1-chris@chris-wilson.co.uk (cherry picked from commitb3304591f1) Signed-off-by: Jani Nikula <jani.nikula@intel.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.