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Use platform_get_irq_byname_optional() instead of platform_get_irq_byname() to avoid below error message during probe: [3.265115] bcm_iproc 68c70200.spi: IRQ spi_lr_fullness_reached not found [3.272121] bcm_iproc 68c70200.spi: IRQ spi_lr_session_aborted not found [3.284965] bcm_iproc 68c70200.spi: IRQ spi_lr_impatient not found [3.291344] bcm_iproc 68c70200.spi: IRQ spi_lr_session_done not found [3.297992] bcm_iproc 68c70200.spi: IRQ mspi_done not found [3.303742] bcm_iproc 68c70200.spi: IRQ mspi_halted not found Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com> Link: https://lore.kernel.org/r/20200107040912.16426-1-rayagonda.kokatanur@broadcom.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.