PATCH v2

[robert.middleton@xxxxxxxxxx]

This v2 patch changes the MCP23S08 interrupt logic to ensure that if multiple
inputs are changed at the same time, the kernel will be notified of all
the pins that changed.

I added several variables to the irq handler, however this means that there
are now quite a few local variables(possibly too many, as the kernel coding 
standard says that more than 5-10 is probably too many: 
https://www.kernel.org/doc/Documentation/process/coding-style.rst).  I'm 
not sure what the best way to fix this is, or if it has to be fixed.

-Robert Middleton
--
To unsubscribe from this list: send the line "unsubscribe linux-gpio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html