The driver started calling into a few interfaces that are part of GPIOLIB and don't have stub implementations otherwise: drivers/hte/hte-tegra194.c: In function 'tegra_hte_line_xlate': drivers/hte/hte-tegra194.c:424:48: error: implicit declaration of function 'gpio_device_get_base'; did you mean 'gpio_device_get_desc'? [-Werror=implicit-function-declaration] 424 | line_id = desc->attr.line_id - gpio_device_get_base(gs->gdev); | ^~~~~~~~~~~~~~~~~~~~ | gpio_device_get_desc Add a Kconfig dependency to only allow building when this is defined. Fixes: dc850faa28ee0 ("hte: tegra194: don't access struct gpio_chip") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Dipen Patel <dipenp@nvidia.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>