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bf38bba3e7
Currently on bxt/glk we just grab the power sequencer index from the VBT data even though it may not have been parsed yet. That could lead us to using the incorrect power sequencer during the initial panel probe. To avoid that let's try to read out the current state of the power sequencer from the hardware. Unfortunately the power sequencer no longer has anything in its registers to associate it with the port, so the best we can do is just iterate through the power sequencers and pick the first one. This should be sufficient for single panel cases. For the dual panel cases we probably need to go back to parsing the VBT before the panel probe (and hope that panel_type=0xff is never a thing in those cases). To that end the code always prefers the VBT panel sequencer, if available. v2: Restructure a bit for upcoming icp+ dual PPS support Cc: Animesh Manna <animesh.manna@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221125173156.31689-5-ville.syrjala@linux.intel.com Reviewed-by: Animesh Manna <animesh.manna@intel.com> |
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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.