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94c70241ef
Rather than always using handle_simple_irq() as the gpio_irq_chip handler, set a more appropriate handler based on the IRQ trigger type requested. This is important for level triggered interrupts which need to be masked during handling. Also, fix the interrupt acknowledge so that it clears only one interrupt instead of all interrupts which are currently active. Finally there is no need to clear the interrupt during the interrupt handler, since the edge-triggered handler will do that for us. Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz> Reviewed-by: Ray Jui <ray.jui@broadcom.com> Link: https://lore.kernel.org/r/20200703011830.15655-1-mark.tomlinson@alliedtelesis.co.nz Signed-off-by: Linus Walleij <linus.walleij@linaro.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.