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[WHY] During detection: function: get_active_converter_info populates link->dpcd_caps.dongle_caps only when dpcd_rev >= DPCD_REV_11 and DWN_STRM_PORTX_TYPE is DOWN_STREAM_DETAILED_HDMI or DOWN_STREAM_DETAILED_DP_PLUS_PLUS. Otherwise, it is not cleared, and stale information remains. During mode validation: function: dp_active_dongle_validate_timing reads link->dpcd_caps.dongle_caps->dongle_type to determine the maximum pixel clock to support. This information is now stale and no longer valid. [HOW] dp_active_dongle_validate_timing should be using link->dpcd_caps->dongle_type instead. Signed-off-by: David Galiffi <david.galiffi@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.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.