GPIO fixes for the v4.11 series:

- Set the parent on the Altera A10SR driver, also fix
  high level IRQs.

- Fix error path on the mockup driver.

- Compilation noise about unused functions fixed.

- Fix missed interrupts on the MCP23S08 expander, this is also
  tagged for stable.

- Retire the interrim helpers devm_get_gpiod_from_child() used
  to smoothen merging in the merge window.
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gpio:mcp23s08 Fixed missing interrupts

When an interrupt occurs on an MCP23S08 chip, the INTF register will only
contain one bit as causing the interrupt.  If more than two pins change at
the same time on the chip, this causes one of the pins to not be reported.
This patch fixes the logic for checking if a pin has changed, so that
multiple pins will always cause more than one change.

Cc: stable@vger.kernel.org
Signed-off-by: Robert Middleton <robert.middleton@rm5248.com>
Tested-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
1 file changed