tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 196d330d7fb1e7cc0d85641c89ce4602cb36f12e commit: 05906f58c82259e42d053409abe7e23b4f88650e [4715/7526] power: supply: ab8500_chargalg: Drop charging step config: arm-allyesconfig (https://download.01.org/0day-ci/archive/20220224/202202241012.mQayQSLZ-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=05906f58c82259e42d053409abe7e23b4f88650e git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 05906f58c82259e42d053409abe7e23b4f88650e # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash drivers/power/supply/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/power/supply/ab8500_chargalg.c: In function 'ab8500_chargalg_chg_curr_maxim': >> drivers/power/supply/ab8500_chargalg.c:821:13: warning: variable 'delta_i_ua' set but not used [-Wunused-but-set-variable] 821 | int delta_i_ua; | ^~~~~~~~~~ vim +/delta_i_ua +821 drivers/power/supply/ab8500_chargalg.c 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 809 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 810 /** c5b64a990e7f3b0 drivers/power/supply/ab8500_chargalg.c Linus Walleij 2021-07-13 811 * ab8500_chargalg_chg_curr_maxim - increases the charger current to 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 812 * compensate for the system load c5b64a990e7f3b0 drivers/power/supply/ab8500_chargalg.c Linus Walleij 2021-07-13 813 * @di pointer to the ab8500_chargalg structure 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 814 * 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 815 * This maximization function is used to raise the charger current to get the 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 816 * battery current as close to the optimal value as possible. The battery 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 817 * current during charging is affected by the system load 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 818 */ c5b64a990e7f3b0 drivers/power/supply/ab8500_chargalg.c Linus Walleij 2021-07-13 819 static enum maxim_ret ab8500_chargalg_chg_curr_maxim(struct ab8500_chargalg *di) 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 820 { 83e5aa77d1120fd drivers/power/supply/ab8500_chargalg.c Linus Walleij 2021-11-20 @821 int delta_i_ua; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 822 b0284de05e07d56 drivers/power/abx500_chargalg.c Lee Jones 2012-11-30 823 if (!di->bm->maxi->ena_maxi) 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 824 return MAXIM_RET_NOACTION; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 825 83e5aa77d1120fd drivers/power/supply/ab8500_chargalg.c Linus Walleij 2021-11-20 826 delta_i_ua = di->ccm.original_iset_ua - di->batt_data.inst_curr_ua; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 827 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 828 if (di->events.vbus_collapsed) { 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 829 dev_dbg(di->dev, "Charger voltage has collapsed %d\n", 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 830 di->ccm.wait_cnt); 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 831 if (di->ccm.wait_cnt == 0) { 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 832 dev_dbg(di->dev, "lowering current\n"); 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 833 di->ccm.wait_cnt++; b0284de05e07d56 drivers/power/abx500_chargalg.c Lee Jones 2012-11-30 834 di->ccm.condition_cnt = di->bm->maxi->wait_cycles; 05906f58c82259e drivers/power/supply/ab8500_chargalg.c Linus Walleij 2022-01-29 835 di->ccm.max_current_ua = di->ccm.current_iset_ua; 83e5aa77d1120fd drivers/power/supply/ab8500_chargalg.c Linus Walleij 2021-11-20 836 di->ccm.current_iset_ua = di->ccm.max_current_ua; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 837 di->ccm.level--; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 838 return MAXIM_RET_CHANGE; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 839 } else { 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 840 dev_dbg(di->dev, "waiting\n"); 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 841 /* Let's go in here twice before lowering curr again */ 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 842 di->ccm.wait_cnt = (di->ccm.wait_cnt + 1) % 3; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 843 return MAXIM_RET_NOACTION; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 844 } 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 845 } 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 846 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 847 di->ccm.wait_cnt = 0; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 848 83e5aa77d1120fd drivers/power/supply/ab8500_chargalg.c Linus Walleij 2021-11-20 849 if (di->batt_data.inst_curr_ua > di->ccm.original_iset_ua) { 83e5aa77d1120fd drivers/power/supply/ab8500_chargalg.c Linus Walleij 2021-11-20 850 dev_dbg(di->dev, " Maximization Ibat (%duA) too high" 83e5aa77d1120fd drivers/power/supply/ab8500_chargalg.c Linus Walleij 2021-11-20 851 " (limit %duA) (current iset: %duA)!\n", 83e5aa77d1120fd drivers/power/supply/ab8500_chargalg.c Linus Walleij 2021-11-20 852 di->batt_data.inst_curr_ua, di->ccm.original_iset_ua, 83e5aa77d1120fd drivers/power/supply/ab8500_chargalg.c Linus Walleij 2021-11-20 853 di->ccm.current_iset_ua); 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 854 83e5aa77d1120fd drivers/power/supply/ab8500_chargalg.c Linus Walleij 2021-11-20 855 if (di->ccm.current_iset_ua == di->ccm.original_iset_ua) 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 856 return MAXIM_RET_NOACTION; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 857 b0284de05e07d56 drivers/power/abx500_chargalg.c Lee Jones 2012-11-30 858 di->ccm.condition_cnt = di->bm->maxi->wait_cycles; 83e5aa77d1120fd drivers/power/supply/ab8500_chargalg.c Linus Walleij 2021-11-20 859 di->ccm.current_iset_ua = di->ccm.original_iset_ua; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 860 di->ccm.level = 0; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 861 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 862 return MAXIM_RET_IBAT_TOO_HIGH; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 863 } 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 864 b0284de05e07d56 drivers/power/abx500_chargalg.c Lee Jones 2012-11-30 865 di->ccm.condition_cnt = di->bm->maxi->wait_cycles; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 866 return MAXIM_RET_NOACTION; 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 867 } 1668f81159fb72e drivers/power/abx500_chargalg.c Arun Murthy 2012-02-29 868 :::::: The code at line 821 was first introduced by commit :::::: 83e5aa77d1120fd38101f757c4aeb985e9305700 power: supply: ab8500: Standardize CC current :::::: TO: Linus Walleij <linus.walleij@xxxxxxxxxx> :::::: CC: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
