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a895dc47ce
In preparation to add support for the PCI-Express Gen3 controller found in newer MediaTek SoCs, such as the Dimensity 9400 MT6991 and the MT8196 Chromebook SoC, add the definition for the PCIE Resource Control register and a new sys_clk_rdy_time_us variable in platform data. If sys_clk_rdy_time_us is found (> 0), set the new value in the aforementioned register only after configuring the controller to RC mode, as this may otherwise be reset. Overriding the register defaults for SYS_CLK_RDY_TIME allows to work around sys_clk_rdy signal glitching in MT6991 and MT8196. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> [mani: used FIELD_MODIFY() to simplify mask and update] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> Link: https://patch.msgid.link/20250703120847.121826-2-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.