aed609c40c
Even though the ChipIdea USB controller binding[1] doesn't specify the properties that reference a PHY as required, the Linux driver requires[2] such a reference. The clock situation is like on i.MX53: The USB controller is clocked from IMX5_CLK_USBOH3_GATE and the PHY from IMX5_CLK_USB_PHY1_GATE. [1]: Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt [2]: Search for EINVAL in drivers/usb/chipidea/ci_hdrc_imx.c Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Shawn Guo <shawnguo@kernel.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.