This turns the IXP4xx GPIO irqchip into an immutable irqchip, a bit different from the standard template due to being hierarchical. Tested on the IXP4xx which uses drivers/ata/pata_ixp4xx_cf.c for a rootfs on compact flash with IRQs from this GPIO block to the CF ATA controller. Cc: Marc Zyngier <maz@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
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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