Hi Vinod, I love your patch! Yet something to improve: [auto build test ERROR on robh/for-next] [also build test ERROR on drm-intel/for-linux-next drm-tip/drm-tip linus/master v5.7-rc5 next-20200512] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Vinod-Koul/Add-LT9611-DSI-to-HDMI-bridge/20200513-181150 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: i386-allyesconfig (attached as .config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/gpu/drm/bridge/lt9611.c: In function 'lt9611_reset': >> drivers/gpu/drm/bridge/lt9611.c:518:2: error: implicit declaration of function 'gpiod_set_value_cansleep' [-Werror=implicit-function-declaration] gpiod_set_value_cansleep(lt9611->reset_gpio, 1); ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/bridge/lt9611.c: In function 'lt9611_gpio_init': >> drivers/gpu/drm/bridge/lt9611.c:963:23: error: implicit declaration of function 'devm_gpiod_get'; did you mean 'devm_iounmap'? [-Werror=implicit-function-declaration] lt9611->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); ^~~~~~~~~~~~~~ devm_iounmap >> drivers/gpu/drm/bridge/lt9611.c:963:52: error: 'GPIOD_OUT_HIGH' undeclared (first use in this function) lt9611->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); ^~~~~~~~~~~~~~ drivers/gpu/drm/bridge/lt9611.c:963:52: note: each undeclared identifier is reported only once for each function it appears in >> drivers/gpu/drm/bridge/lt9611.c:969:24: error: implicit declaration of function 'devm_gpiod_get_optional'; did you mean 'devm_regulator_get_optional'? [-Werror=implicit-function-declaration] lt9611->enable_gpio = devm_gpiod_get_optional(dev, "enable", ^~~~~~~~~~~~~~~~~~~~~~~ devm_regulator_get_optional >> drivers/gpu/drm/bridge/lt9611.c:970:13: error: 'GPIOD_OUT_LOW' undeclared (first use in this function); did you mean 'GPIOD_OUT_HIGH'? GPIOD_OUT_LOW); ^~~~~~~~~~~~~ GPIOD_OUT_HIGH cc1: some warnings being treated as errors vim +/gpiod_set_value_cansleep +518 drivers/gpu/drm/bridge/lt9611.c 515 516 static void lt9611_reset(struct lt9611 *lt9611) 517 { > 518 gpiod_set_value_cansleep(lt9611->reset_gpio, 1); 519 msleep(20); 520 gpiod_set_value_cansleep(lt9611->reset_gpio, 0); 521 msleep(20); 522 gpiod_set_value_cansleep(lt9611->reset_gpio, 1); 523 msleep(100); 524 } 525 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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