Hi kimriver, kernel test robot noticed the following build errors: [auto build test ERROR on andi-shyti/i2c/i2c-host] [also build test ERROR on linus/master v6.11-rc6 next-20240906] [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/kimriver-liu/i2c-designware-fix-master-is-holding-SCL-low-while-ENABLE-bit-is-disabled/20240905-154711 base: https://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git i2c/i2c-host patch link: https://lore.kernel.org/r/20240905074211.2278-1-kimriver.liu%40siengine.com patch subject: [PATCH] i2c: designware: fix master is holding SCL low while ENABLE bit is disabled config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20240908/202409082011.9JF6aYsk-lkp@xxxxxxxxx/config) compiler: sh4-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240908/202409082011.9JF6aYsk-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202409082011.9JF6aYsk-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/i2c/busses/i2c-designware-common.c: In function '__i2c_dw_disable': >> drivers/i2c/busses/i2c-designware-common.c:538:32: error: 'DW_IC_ENABLE_ENABLE' undeclared (first use in this function); did you mean 'DW_IC_ENABLE_STATUS'? 538 | if (!(enable & DW_IC_ENABLE_ENABLE)) { | ^~~~~~~~~~~~~~~~~~~ | DW_IC_ENABLE_STATUS drivers/i2c/busses/i2c-designware-common.c:538:32: note: each undeclared identifier is reported only once for each function it appears in vim +538 drivers/i2c/busses/i2c-designware-common.c 523 524 void __i2c_dw_disable(struct dw_i2c_dev *dev) 525 { 526 unsigned int raw_intr_stats; 527 unsigned int enable; 528 int timeout = 100; 529 bool abort_needed; 530 unsigned int status; 531 int ret; 532 533 regmap_read(dev->map, DW_IC_RAW_INTR_STAT, &raw_intr_stats); 534 regmap_read(dev->map, DW_IC_ENABLE, &enable); 535 536 abort_needed = raw_intr_stats & DW_IC_INTR_MST_ON_HOLD; 537 if (abort_needed) { > 538 if (!(enable & DW_IC_ENABLE_ENABLE)) { 539 regmap_write(dev->map, DW_IC_ENABLE, DW_IC_ENABLE_ENABLE); 540 enable |= DW_IC_ENABLE_ENABLE; 541 542 /* 543 * Wait two ic_clk delay when enabling the i2c to ensure ENABLE bit 544 * is already set by the driver (for 400KHz this is 25us) 545 * as described in the DesignWare I2C databook. 546 */ 547 fsleep(25); 548 } 549 550 regmap_write(dev->map, DW_IC_ENABLE, enable | DW_IC_ENABLE_ABORT); 551 ret = regmap_read_poll_timeout(dev->map, DW_IC_ENABLE, enable, 552 !(enable & DW_IC_ENABLE_ABORT), 10, 553 100); 554 if (ret) 555 dev_err(dev->dev, "timeout while trying to abort current transfer\n"); 556 } 557 558 do { 559 __i2c_dw_disable_nowait(dev); 560 /* 561 * The enable status register may be unimplemented, but 562 * in that case this test reads zero and exits the loop. 563 */ 564 regmap_read(dev->map, DW_IC_ENABLE_STATUS, &status); 565 if ((status & 1) == 0) 566 return; 567 568 /* 569 * Wait 10 times the signaling period of the highest I2C 570 * transfer supported by the driver (for 400KHz this is 571 * 25us) as described in the DesignWare I2C databook. 572 */ 573 usleep_range(25, 250); 574 } while (timeout--); 575 576 dev_warn(dev->dev, "timeout in disabling adapter\n"); 577 } 578 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
