Hi Jitao, Thank you for the patch! Yet something to improve: [auto build test ERROR on robh/for-next] [also build test ERROR on linux/master linus/master v5.11-rc6 next-20210125] [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/Jitao-Shi/Add-check-for-max-clock-rate-in-mode_valid/20210207-210121 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 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/0day-ci/linux/commit/094ecc22dd2d9bfee293b97b33ba267a861ee301 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jitao-Shi/Add-check-for-max-clock-rate-in-mode_valid/20210207-210121 git checkout 094ecc22dd2d9bfee293b97b33ba267a861ee301 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Note: the linux-review/Jitao-Shi/Add-check-for-max-clock-rate-in-mode_valid/20210207-210121 HEAD 9361778ccbd0d19a6c7376b1f3489b6e5063bb73 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): drivers/gpu/drm/mediatek/mtk_dpi.c:574:16: error: initialization of 'enum drm_mode_status (*)(struct drm_bridge *, const struct drm_display_info *, const struct drm_display_mode *)' from incompatible pointer type 'enum drm_mode_status (*)(struct drm_bridge *, const struct drm_display_mode *)' [-Werror=incompatible-pointer-types] 574 | .mode_valid = mtk_dpi_bridge_mode_valid, | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_dpi.c:574:16: note: (near initialization for 'mtk_dpi_bridge_funcs.mode_valid') >> drivers/gpu/drm/mediatek/mtk_dpi.c:709:3: error: 'const struct mtk_dpi_conf' has no member named 'dual_edge' 709 | .dual_edge = true, | ^~~~~~~~~ drivers/gpu/drm/mediatek/mtk_dpi.c:710:19: warning: initialized field overwritten [-Woverride-init] 710 | .max_clock_khz = 150000, | ^~~~~~ drivers/gpu/drm/mediatek/mtk_dpi.c:710:19: note: (near initialization for 'mt8192_conf.max_clock_khz') cc1: some warnings being treated as errors vim +709 drivers/gpu/drm/mediatek/mtk_dpi.c 570 571 static const struct drm_bridge_funcs mtk_dpi_bridge_funcs = { 572 .attach = mtk_dpi_bridge_attach, 573 .mode_set = mtk_dpi_bridge_mode_set, > 574 .mode_valid = mtk_dpi_bridge_mode_valid, 575 .disable = mtk_dpi_bridge_disable, 576 .enable = mtk_dpi_bridge_enable, 577 }; 578 579 static void mtk_dpi_start(struct mtk_ddp_comp *comp) 580 { 581 struct mtk_dpi *dpi = container_of(comp, struct mtk_dpi, ddp_comp); 582 583 mtk_dpi_power_on(dpi); 584 } 585 586 static void mtk_dpi_stop(struct mtk_ddp_comp *comp) 587 { 588 struct mtk_dpi *dpi = container_of(comp, struct mtk_dpi, ddp_comp); 589 590 mtk_dpi_power_off(dpi); 591 } 592 593 static const struct mtk_ddp_comp_funcs mtk_dpi_funcs = { 594 .start = mtk_dpi_start, 595 .stop = mtk_dpi_stop, 596 }; 597 598 static int mtk_dpi_bind(struct device *dev, struct device *master, void *data) 599 { 600 struct mtk_dpi *dpi = dev_get_drvdata(dev); 601 struct drm_device *drm_dev = data; 602 int ret; 603 604 ret = mtk_ddp_comp_register(drm_dev, &dpi->ddp_comp); 605 if (ret < 0) { 606 dev_err(dev, "Failed to register component %pOF: %d\n", 607 dev->of_node, ret); 608 return ret; 609 } 610 611 ret = drm_simple_encoder_init(drm_dev, &dpi->encoder, 612 DRM_MODE_ENCODER_TMDS); 613 if (ret) { 614 dev_err(dev, "Failed to initialize decoder: %d\n", ret); 615 goto err_unregister; 616 } 617 618 dpi->encoder.possible_crtcs = mtk_drm_find_possible_crtc_by_comp(drm_dev, dpi->ddp_comp); 619 620 ret = drm_bridge_attach(&dpi->encoder, &dpi->bridge, NULL, 0); 621 if (ret) { 622 dev_err(dev, "Failed to attach bridge: %d\n", ret); 623 goto err_cleanup; 624 } 625 626 dpi->bit_num = MTK_DPI_OUT_BIT_NUM_8BITS; 627 dpi->channel_swap = MTK_DPI_OUT_CHANNEL_SWAP_RGB; 628 dpi->yc_map = MTK_DPI_OUT_YC_MAP_RGB; 629 dpi->color_format = MTK_DPI_COLOR_FORMAT_RGB; 630 631 return 0; 632 633 err_cleanup: 634 drm_encoder_cleanup(&dpi->encoder); 635 err_unregister: 636 mtk_ddp_comp_unregister(drm_dev, &dpi->ddp_comp); 637 return ret; 638 } 639 640 static void mtk_dpi_unbind(struct device *dev, struct device *master, 641 void *data) 642 { 643 struct mtk_dpi *dpi = dev_get_drvdata(dev); 644 struct drm_device *drm_dev = data; 645 646 drm_encoder_cleanup(&dpi->encoder); 647 mtk_ddp_comp_unregister(drm_dev, &dpi->ddp_comp); 648 } 649 650 static const struct component_ops mtk_dpi_component_ops = { 651 .bind = mtk_dpi_bind, 652 .unbind = mtk_dpi_unbind, 653 }; 654 655 static unsigned int mt8173_calculate_factor(int clock) 656 { 657 if (clock <= 27000) 658 return 3 << 4; 659 else if (clock <= 84000) 660 return 3 << 3; 661 else if (clock <= 167000) 662 return 3 << 2; 663 else 664 return 3 << 1; 665 } 666 667 static unsigned int mt2701_calculate_factor(int clock) 668 { 669 if (clock <= 64000) 670 return 4; 671 else if (clock <= 128000) 672 return 2; 673 else 674 return 1; 675 } 676 677 static unsigned int mt8183_calculate_factor(int clock) 678 { 679 if (clock <= 27000) 680 return 8; 681 else if (clock <= 167000) 682 return 4; 683 else 684 return 2; 685 } 686 687 static const struct mtk_dpi_conf mt8173_conf = { 688 .cal_factor = mt8173_calculate_factor, 689 .reg_h_fre_con = 0xe0, 690 .max_clock_khz = 300000, 691 }; 692 693 static const struct mtk_dpi_conf mt2701_conf = { 694 .cal_factor = mt2701_calculate_factor, 695 .reg_h_fre_con = 0xb0, 696 .edge_sel_en = true, 697 .max_clock_khz = 150000, 698 }; 699 700 static const struct mtk_dpi_conf mt8183_conf = { 701 .cal_factor = mt8183_calculate_factor, 702 .reg_h_fre_con = 0xe0, 703 .max_clock_khz = 100000, 704 }; 705 706 static const struct mtk_dpi_conf mt8192_conf = { 707 .cal_factor = mt8183_calculate_factor, 708 .reg_h_fre_con = 0xe0, > 709 .dual_edge = true, 710 .max_clock_khz = 150000, 711 }; 712 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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