Hi Quentin, Thank you for the patch! Yet something to improve: [auto build test ERROR on rockchip/for-next] [also build test ERROR on linusw-pinctrl/devel brgl/gpio/for-next linus/master v6.0-rc7 next-20220927] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Quentin-Schulz/fix-gpio-sysfs-libgpiod-for-rockchip/20220923-225404 base: https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git for-next config: m68k-randconfig-r014-20220925 compiler: m68k-linux-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/cd1658c3e07a744075ac4c9cab165743daf266ff git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Quentin-Schulz/fix-gpio-sysfs-libgpiod-for-rockchip/20220923-225404 git checkout cd1658c3e07a744075ac4c9cab165743daf266ff # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/gpio/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All errors (new ones prefixed by >>): drivers/gpio/gpio-rockchip.c: In function 'rockchip_gpio_set_direction': >> drivers/gpio/gpio-rockchip.c:161:17: error: implicit declaration of function 'pinctrl_gpio_direction_input' [-Werror=implicit-function-declaration] 161 | pinctrl_gpio_direction_input(bank->pin_base + offset); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/gpio/gpio-rockchip.c:163:17: error: implicit declaration of function 'pinctrl_gpio_direction_output' [-Werror=implicit-function-declaration] 163 | pinctrl_gpio_direction_output(bank->pin_base + offset); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/pinctrl_gpio_direction_input +161 drivers/gpio/gpio-rockchip.c 151 152 static int rockchip_gpio_set_direction(struct gpio_chip *chip, 153 unsigned int offset, bool input) 154 { 155 struct rockchip_pin_bank *bank = gpiochip_get_data(chip); 156 unsigned long flags; 157 u32 data = input ? 0 : 1; 158 159 160 if (input) > 161 pinctrl_gpio_direction_input(bank->pin_base + offset); 162 else > 163 pinctrl_gpio_direction_output(bank->pin_base + offset); 164 165 raw_spin_lock_irqsave(&bank->slock, flags); 166 rockchip_gpio_writel_bit(bank, offset, data, bank->gpio_regs->port_ddr); 167 raw_spin_unlock_irqrestore(&bank->slock, flags); 168 169 return 0; 170 } 171 -- 0-DAY CI Kernel Test Service https://01.org/lkp