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We are currently using the cell-index DT property to assign SPI bus numbers. This property is specific to the spi-orion driver, and requires each SPI controller to have a unique ID defined in the Device Tree. As we are about to merge armada-cp110-master.dtsi and armada-cp110-slave.dtsi into a single file, those cell-index properties that differ between the master CP110 and the slave CP110 are a difference that would have to be handled. In order to avoid this, we switch to using the "aliases" DT node to assign a unique number to each SPI controller. This is more generic, and directly handled by the SPI core. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.