drivers/staging/media/lirc/lirc_rpi.c: In function 'send_pulse_softcarrier':
drivers/staging/media/lirc/lirc_rpi.c:148:12: error: dereferencing pointer to incomplete type 'struct gpio_chip'
    gpiochip->set(gpiochip, gpio_out_pin, invert);
            ^
drivers/staging/media/lirc/lirc_rpi.c: In function 'init_port':
drivers/staging/media/lirc/lirc_rpi.c:351:13: error: implicit declaration of function 'gpiochip_find' [-Werror=implicit-function-declaration]
  gpiochip = gpiochip_find("bcm2708_gpio", is_right_chip);
             ^
drivers/staging/media/lirc/lirc_rpi.c:351:11: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
  gpiochip = gpiochip_find("bcm2708_gpio", is_right_chip);
           ^
drivers/staging/media/lirc/lirc_rpi.c:358:12: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
   gpiochip = gpiochip_find("pinctrl-bcm2835", is_right_chip);
            ^
cc1: some warnings being treated as errors
scripts/Makefile.build:264: recipe for target 'drivers/staging/media/lirc/lirc_rpi.o' failed
make[4]: *** [drivers/staging/media/lirc/lirc_rpi.o] Error 1
scripts/Makefile.build:407: recipe for target 'drivers/staging/media/lirc' failed
make[3]: *** [drivers/staging/media/lirc] Error 2
scripts/Makefile.build:407: recipe for target 'drivers/staging/media' failed
make[2]: *** [drivers/staging/media] Error 2
scripts/Makefile.build:407: recipe for target 'drivers/staging' failed
make[1]: *** [drivers/staging] Error 2
Makefile:950: recipe for target 'drivers' failed
make: *** [drivers] Error 2