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[WHY] DTBCLK_P is used to generate virtual pixel clock, and to drive the HPO stream encoder clock. Programming the required clock when enabling/disabling both components can cause issues. For example, if HPO is being disabled and clock source is changed to REFCLK, virtual pixel rate will then be wrong, causing issues in CRTC. [HOW] Only program the DTBCLK_P when programming CRTC, as its expected it will be enabled prior to HPO, and disabled after HPO in all valid cases. Reviewed-by: Alvin Lee <alvin.lee2@amd.com> Signed-off-by: Dillon Varone <dillon.varone@amd.com> Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@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 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.