Xiangxu Yin 6fb0cf3e7c drm/msm/dp: Add support for lane mapping configuration
QCS615 platform requires non-default logical-to-physical lane mapping due
to its unique hardware routing. Unlike the standard mapping sequence
<0 1 2 3>, QCS615 uses <3 2 0 1>, which necessitates explicit
configuration via the data-lanes property in the device tree. This ensures
correct signal routing between the DP controller and PHY.

For partial definitions, fill remaining lanes with unused physical lanes
in ascending order.

Signed-off-by: Xiangxu Yin <xiangxu.yin@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/675645/
Link: https://lore.kernel.org/r/20250919-add-displayport-support-for-qcs615-platform-v5-14-eae6681f4002@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-11-14 16:59:27 +02:00
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2025-10-17 13:02:22 +02:00
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2025-10-24 14:45:08 +02:00
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2025-10-19 15:19:16 -10:00
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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 reStructuredText 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.
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