372c4bd11d
Depending on the integration of McASP either the 'common' or the 'rx' and 'tx' or only the 'tx' interrupt number is valid, provided. By switching to platform_get_irq_byname_optional() we can clean up the bootlog from messages like: davinci-mcasp 2ba0000.mcasp: IRQ common not found The irq number == 0 is not valid, fix the check at the same time. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20201106072551.689-2-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
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.