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In order to create a more sophisticated AHCI controller DT bindings let's divide the already available generic AHCI platform YAML schema into the platform part and a set of the common AHCI properties. The former part will be used to evaluate the AHCI DT nodes mainly compatible with the generic AHCI controller while the later schema will be used for more thorough AHCI DT nodes description. For instance such YAML schemas design will be useful for our DW AHCI SATA controller derivative with four clock sources, two reset lines, one system controller reference and specific max Rx/Tx DMA xfers size constraints. Note the phys and target-supply property requirement is preserved in the generic AHCI platform bindings because some platforms can lack of the explicitly specified PHYs or target device power regulators. Also note the SATA/AHCI ports properties have been moved to the $defs-paragraph of the schemas. It's done in order to create the extendable properties hierarchy such that particular AHCI-controller could add vendor-specific port properties. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Rob Herring <robh@kernel.org> 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.