b176f95b57
The GSI IRQ handler could be triggered as soon as it is registered with request_irq(). The handler function, gsi_isr(), touches hardware, meaning the IPA clock must be operational. The IPA clock is not operating when the handler is registered (in gsi_irq_init()), so this is a problem. Move the call to request_irq() for the GSI interrupt handler into gsi_irq_setup(), which is called when the IPA clock is known to be operational (and furthermore, the GSI firmware will have been loaded). Request the IRQ at the end of that function, after all interrupt types have been disabled and masked. Move the matching free_irq() call into gsi_irq_teardown(), and get rid of the now empty gsi_irq_exit(), Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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.