The transmit(Tx) channels are specified as the first entry and the receive(Rx) channels are the second entry as per the device tree bindings. Since we currently just support Tx, index 0 is hardcoded at all required callsites. In order to prepare for adding Rx support, let's remove those hardcoded index and add boolean parameter to identify Tx/Rx channels when setting them up. Signed-off-by: Sudeep Holla <sudeep.holla@arm.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.
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