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Mika Kahola f4304beadd drm/i915/display: Fix C20 pll selection for state verification
Add pll selection check for C20 as well as
clock state verification0. We have been relying
on sw state to select A or B pll's. This is incorrect
as the hw might see this selection differently. This
patch fixes this shortcoming by reading pll selection
for both sw and hw states and compares if these two
selections match.

Fixes: 59be90248b ("drm/i915/mtl: C20 state verification")

v2: reword commit message and include fix to a
    original commit (Imre)
    Compare pll selection (Jani)

Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240102115741.118525-2-mika.kahola@intel.com
History 2024-01-04 11:42:13 +02:00
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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
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the problems which may result by upgrading your kernel.