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b100402e93
The PHY hardware needs the delay of 2ms after power up, otherwise initial interrupt may be lost if USB controller is accessed before PHY is settled down. Previously this issue was masked by implicit delays, but now it pops up after squashing the older ehci-tegra driver into the ChipIdea driver. Tested-by: Matt Merhar <mattmerhar@protonmail.com> Tested-by: Nicolas Chauvet <kwizart@gmail.com> Tested-by: Peter Geis <pgwipeout@gmail.com> Tested-by: Ion Agorria <ion@agorria.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Peter Chen <peter.chen@kernel.org> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201218120246.7759-2-digetx@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.