Hi Jonas, kernel test robot noticed the following build errors: [auto build test ERROR on 9852d85ec9d492ebef56dc5f229416c925758edc] url: https://github.com/intel-lab-lkp/linux/commits/Jonas-Rebmann/spi-imx-pass-struct-spi_transfer-to-prepare_transfer/20241107-233756 base: 9852d85ec9d492ebef56dc5f229416c925758edc patch link: https://lore.kernel.org/r/20241107-imx-spi-word-delay-v1-2-2a969214d796%40pengutronix.de patch subject: [PATCH 2/2] spi: imx: support word delay config: arc-randconfig-002-20241108 (https://download.01.org/0day-ci/archive/20241108/202411080315.8JXzpAnT-lkp@xxxxxxxxx/config) compiler: arc-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241108/202411080315.8JXzpAnT-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/202411080315.8JXzpAnT-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/spi/spi-imx.c: In function 'mx51_ecspi_prepare_transfer': >> drivers/spi/spi-imx.c:739:14: error: implicit declaration of function 'FIELD_FIT' [-Werror=implicit-function-declaration] 739 | if (!FIELD_FIT(MX51_ECSPI_PERIOD_MASK, word_delay_sck)) | ^~~~~~~~~ In file included from include/linux/byteorder/little_endian.h:5, from arch/arc/include/uapi/asm/byteorder.h:16, from include/asm-generic/bitops/le.h:6, from arch/arc/include/asm/bitops.h:192, from include/linux/bitops.h:68, from include/linux/kernel.h:23, from include/linux/clk.h:13, from drivers/spi/spi-imx.c:6: >> drivers/spi/spi-imx.c:742:16: error: implicit declaration of function 'FIELD_PREP' [-Werror=implicit-function-declaration] 742 | writel(FIELD_PREP(MX51_ECSPI_PERIOD_MASK, word_delay_sck), | ^~~~~~~~~~ include/uapi/linux/byteorder/little_endian.h:34:51: note: in definition of macro '__cpu_to_le32' 34 | #define __cpu_to_le32(x) ((__force __le32)(__u32)(x)) | ^ arch/arc/include/asm/io.h:208:47: note: in expansion of macro 'writel_relaxed' 208 | #define writel(v,c) ({ __iowmb(); writel_relaxed(v,c); }) | ^~~~~~~~~~~~~~ drivers/spi/spi-imx.c:742:9: note: in expansion of macro 'writel' 742 | writel(FIELD_PREP(MX51_ECSPI_PERIOD_MASK, word_delay_sck), | ^~~~~~ cc1: some warnings being treated as errors vim +/FIELD_FIT +739 drivers/spi/spi-imx.c 665 666 static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx, 667 struct spi_device *spi, struct spi_transfer *t) 668 { 669 u32 ctrl = readl(spi_imx->base + MX51_ECSPI_CTRL); 670 u64 word_delay_sck; 671 u32 clk; 672 673 /* Clear BL field and set the right value */ 674 ctrl &= ~MX51_ECSPI_CTRL_BL_MASK; 675 if (spi_imx->target_mode && is_imx53_ecspi(spi_imx)) 676 ctrl |= (spi_imx->target_burst * 8 - 1) 677 << MX51_ECSPI_CTRL_BL_OFFSET; 678 else { 679 ctrl |= (spi_imx->bits_per_word - 1) 680 << MX51_ECSPI_CTRL_BL_OFFSET; 681 } 682 683 /* set clock speed */ 684 ctrl &= ~(0xf << MX51_ECSPI_CTRL_POSTDIV_OFFSET | 685 0xf << MX51_ECSPI_CTRL_PREDIV_OFFSET); 686 ctrl |= mx51_ecspi_clkdiv(spi_imx, spi_imx->spi_bus_clk, &clk); 687 spi_imx->spi_bus_clk = clk; 688 689 mx51_configure_cpha(spi_imx, spi); 690 691 /* 692 * ERR009165: work in XHC mode instead of SMC as PIO on the chips 693 * before i.mx6ul. 694 */ 695 if (spi_imx->usedma && spi_imx->devtype_data->tx_glitch_fixed) 696 ctrl |= MX51_ECSPI_CTRL_SMC; 697 else 698 ctrl &= ~MX51_ECSPI_CTRL_SMC; 699 700 writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL); 701 702 /* calculate word delay in SPI Clock (SCLK) cycles */ 703 if (t->word_delay.value == 0) { 704 word_delay_sck = 0; 705 } else if (t->word_delay.unit == SPI_DELAY_UNIT_SCK) { 706 word_delay_sck = t->word_delay.value; 707 708 if (word_delay_sck <= MX51_ECSPI_PERIOD_MIN_DELAY_SCK) 709 word_delay_sck = 0; 710 else if (word_delay_sck <= MX51_ECSPI_PERIOD_MIN_DELAY_SCK + 1) 711 word_delay_sck = 1; 712 else 713 word_delay_sck -= MX51_ECSPI_PERIOD_MIN_DELAY_SCK + 1; 714 } else { 715 int word_delay_ns; 716 717 word_delay_ns = spi_delay_to_ns(&t->word_delay, t); 718 if (word_delay_ns < 0) 719 return word_delay_ns; 720 721 if (word_delay_ns <= mul_u64_u32_div(NSEC_PER_SEC, 722 MX51_ECSPI_PERIOD_MIN_DELAY_SCK, 723 spi_imx->spi_bus_clk)) { 724 word_delay_sck = 0; 725 } else if (word_delay_ns <= mul_u64_u32_div(NSEC_PER_SEC, 726 MX51_ECSPI_PERIOD_MIN_DELAY_SCK + 1, 727 spi_imx->spi_bus_clk)) { 728 word_delay_sck = 1; 729 } else { 730 word_delay_ns -= mul_u64_u32_div(NSEC_PER_SEC, 731 MX51_ECSPI_PERIOD_MIN_DELAY_SCK + 1, 732 spi_imx->spi_bus_clk); 733 734 word_delay_sck = DIV_U64_ROUND_UP((u64)word_delay_ns * spi_imx->spi_bus_clk, 735 NSEC_PER_SEC); 736 } 737 } 738 > 739 if (!FIELD_FIT(MX51_ECSPI_PERIOD_MASK, word_delay_sck)) 740 return -EINVAL; 741 > 742 writel(FIELD_PREP(MX51_ECSPI_PERIOD_MASK, word_delay_sck), 743 spi_imx->base + MX51_ECSPI_PERIOD); 744 745 return 0; 746 } 747 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
