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881d5094b1
The VDO1_MERGE4 hardware (merge5 software component) should be
set to enable output to DPI1_SEL by setting BIT(2) but, despite
the intention being exactly that, this won't work because the
declared register mask is wrong as it is set as GENMASK(1, 0).
Register MERGE4_MOUT_EN in VDO1 has four used bits [3, 0] so
fix the mask to reflect that.
That, in turn, allows the mmsys driver to actually set BIT(2)
in this register, fixing the MERGE4 output to DPI1 selection.
Fixes: c0349314d5 ("soc: mediatek: Support MT8188 VDOSYS1 in mtk-mmsys")
Link: https://lore.kernel.org/r/20250212100012.33001-3-angelogioacchino.delregno@collabora.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.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.