Hi "Maíra,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on lee-backlight/for-backlight-next] [also build test ERROR on v5.15-rc7 next-20211029] [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]
url: https://github.com/0day-ci/linux/commits/Ma-ra-Canal/backlight-lp855x-Switch... base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight.git for-backlight-next config: i386-randconfig-a002-20211031 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/f4d53f4d51c78636fc4fd34aecbdcbd1f83f... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ma-ra-Canal/backlight-lp855x-Switch-to-atomic-PWM-API/20211030-213551 git checkout f4d53f4d51c78636fc4fd34aecbdcbd1f83f656e # save the attached .config to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot lkp@intel.com
All errors (new ones prefixed by >>):
ld: drivers/video/backlight/lp855x_bl.o: in function `lp855x_pwm_ctrl':
drivers/video/backlight/lp855x_bl.c:253: undefined reference to `__udivdi3'
vim +253 drivers/video/backlight/lp855x_bl.c
233 234 static void lp855x_pwm_ctrl(struct lp855x *lp, int br, int max_br) 235 { 236 struct pwm_device *pwm = NULL; 237 struct pwm_state state; 238 239 /* request pwm device with the consumer name */ 240 if (!lp->pwm) { 241 pwm = devm_pwm_get(lp->dev, lp->chipname); 242 if (IS_ERR(pwm)) 243 return; 244 245 lp->pwm = pwm; 246 247 pwm_init_state(lp->pwm, &state); 248 state.period = lp->pdata->period_ns; 249 } 250 251 pwm_get_state(lp->pwm, &state); 252
253 state.duty_cycle = br * state.period / max_br;
254 state.enabled = state.duty_cycle; 255 256 pwm_apply_state(lp->pwm, &state); 257 } 258
--- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org