Hi Javier, [auto build test ERROR on linuxtv-media/master] [also build test ERROR on v4.4-rc8 next-20151231] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Javier-Martinez-Canillas/tvp5150-add-MC-and-DT-support/20160104-203224 base: git://linuxtv.org/media_tree.git master config: x86_64-randconfig-x008-01040711 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/media/i2c/tvp5150.c: In function 'tvp5150_init': >> drivers/media/i2c/tvp5150.c:1206:13: error: implicit declaration of function 'devm_gpiod_get_optional' [-Werror=implicit-function-declaration] pdn_gpio = devm_gpiod_get_optional(&c->dev, "powerdown", GPIOD_OUT_HIGH); ^ >> drivers/media/i2c/tvp5150.c:1206:59: error: 'GPIOD_OUT_HIGH' undeclared (first use in this function) pdn_gpio = devm_gpiod_get_optional(&c->dev, "powerdown", GPIOD_OUT_HIGH); ^ drivers/media/i2c/tvp5150.c:1206:59: note: each undeclared identifier is reported only once for each function it appears in >> drivers/media/i2c/tvp5150.c:1211:3: error: implicit declaration of function 'gpiod_set_value_cansleep' [-Werror=implicit-function-declaration] gpiod_set_value_cansleep(pdn_gpio, 0); ^ cc1: some warnings being treated as errors vim +/devm_gpiod_get_optional +1206 drivers/media/i2c/tvp5150.c 1200 1201 static inline int tvp5150_init(struct i2c_client *c) 1202 { 1203 struct gpio_desc *pdn_gpio; 1204 struct gpio_desc *reset_gpio; 1205 > 1206 pdn_gpio = devm_gpiod_get_optional(&c->dev, "powerdown", GPIOD_OUT_HIGH); 1207 if (IS_ERR(pdn_gpio)) 1208 return PTR_ERR(pdn_gpio); 1209 1210 if (pdn_gpio) { > 1211 gpiod_set_value_cansleep(pdn_gpio, 0); 1212 /* Delay time between power supplies active and reset */ 1213 msleep(20); 1214 } --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation