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