The only valuable information a special callback can derive from
mvebu_mpp_ctrl passed to it, is the pin id. Instead of passing
the struct, pass the pid directly.
Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>