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Michael Grzeschik c8879d3f87 phy: stm32-usphyc: add 200 to 300 us delay to fix timeout on some machines
An minimum udelay of 200 us seems to be necessary on some machines. After
the setup of the pll, which needs about 100 us to be locked there seem
to be additional 100 us to get the phy really functional. Without this
delay the usb runs not functional. With this additional short udelay
this issue was not reported again.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20230227151318.1894938-1-m.grzeschik@pengutronix.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>
History 2023-03-31 18:59:16 +05:30
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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.