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72be1e7a44
There is a t-phy shared by PCIe and USB3 on mt8195, if the t-phy is used by PCIe, when power off its mtcmos, need software reset it (workaround way, usually hardware do it, but has an issue on mt8195), but it has side effect to USB2 phy(works with USB3 phy to support USB3.2 Gen1), so add support GENPD_FLAG_ALWAYS_ON flag, and make its power always on. Another reason is that USB3.2 Gen1/2 need keep power always on when support runtime-pm due to hardware limitation until now. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220617095841.23031-1-chunfeng.yun@mediatek.com [mb: smaller nit fixes on commit message] Signed-off-by: Matthias Brugger <matthias.bgg@gmail.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.