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Since all the clocks are retrieved by the method ahci_platform_get_resources() there is no need for the LLD (glue) drivers to be looking for some particular of them in the kernel clocks table again. Instead we suggest to add a simple method returning a device-specific clock with passed connection ID if it is managed to be found. Otherwise the function will return NULL. Thus the glue-drivers won't need to either manually touching the hpriv->clks array or calling clk_get()-friends. The AHCI platform drivers will be able to use the new function right after the ahci_platform_get_resources() method invocation and up to the device removal. Note the method is left unused here, but will be utilized in the framework of the DWC AHCI SATA driver being added in the next commit. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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.