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The way this function is implemented caused some confusion when converting the TI DaVinci platform to using the common clock framework. Current kernel supports booting DaVinci boards both in device tree as well as legacy, board-file mode. In the latter, we always end up calling clk_get_sys() as of_node is NULL and __of_clk_get_by_name() returns -ENOENT. It was not obvious at first glance how clk_get(dev, NULL) will work in board-file mode since we always call __of_clk_get_by_name(). Let's make it clearer by checking if of_node is NULL and skipping right to clk_get_sys(). Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@baylibre.com> Cc: David Lechner <david@lechnology.com> Reviewed-by: David Lechner <david@lechnology.com> Reviewed-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> |
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| README | ||
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.