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65981ce883
When use GKI, if the driver is Buildin and there is a reference clock, the driver start to Probe after clk's ko load, but this clk will failed if the parent clock is gpll and gpll has not been initialized in Pmucru. GKI err log: dw-apb-uart ff158000.serial: error -EINVAL: clock rate not defined dw-apb-uart: probe of ff158000.serial failed with error -22 Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com> Change-Id: Ib587ac3594fef94133f12e3f39d42995131067f5
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.