[REGRESSION next] gpio-keys broken with commit 2233bf7a92e7 ("gpio: mvebu: switch to regmap for register access")

[Ralph Sennhauser]

Hi Thomas,

Commit 2233bf7a92e7 ("gpio: mvebu: switch to regmap for register
access") in next-20170607 breaks gpio-keys on an armada-385 (Linksys
WRT3200ACM), noticed due to missing /dev/input/event0 and the below
dmesg output.

  # dmesg -l 0,1,2,3
  [    2.421130] genirq: Setting trigger mode 3 for irq 49 failed (mvebu_gpio_irq_set_type+0x0/0x168)
  [    2.429953] gpio-keys gpio-keys: Unable to claim irq 49; error -22


After reverting the offending commit all works again.

Ralph