tree: https://github.com/superna9999/linux amlogic/v5.7/spicc-axg head: 0e8412ba3bd918830b647ad83eafc468d1f7d2fd commit: 099c5e8bbcb72384a548c93baa18de8fa917f07d [10/13] spi: meson-spicc: add support for Amlogic G12A config: i386-allyesconfig (attached as .config) compiler: gcc-7 (Debian 7.5.0-5) 7.5.0 reproduce: git checkout 099c5e8bbcb72384a548c93baa18de8fa917f07d # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers//spi/spi-meson-spicc.c: In function 'meson_spicc_clk_init': else ^~~~ vim +550 drivers//spi/spi-meson-spicc.c 502 503 /* 504 * The Clock Mux 505 * x-----------------x x------------x x------\ 506 * |---| pow2 fixed div |---| pow2 div |----| | 507 * | x-----------------x x------------x | | 508 * src ---| | mux |-- out 509 * | x-----------------x x------------x | | 510 * |---| enh fixed div |---| enh div |0---| | 511 * x-----------------x x------------x x------/ 512 * 513 * Clk path for GX series: 514 * src -> pow2 fixed div -> pow2 div -> out 515 * 516 * Clk path for AXG series: 517 * src -> pow2 fixed div -> pow2 div -> mux -> out 518 * src -> enh fixed div -> enh div -> mux -> out 519 * 520 * Clk path for G12A series: 521 * pclk -> pow2 fixed div -> pow2 div -> mux -> out 522 * pclk -> enh fixed div -> enh div -> mux -> out 523 */ 524 525 static int meson_spicc_clk_init(struct meson_spicc_device *spicc) 526 { 527 struct device *dev = &spicc->pdev->dev; 528 struct clk_fixed_factor *pow2_fixed_div, *enh_fixed_div; 529 struct clk_divider *pow2_div, *enh_div; 530 struct clk_mux *mux; 531 struct clk_init_data init; 532 struct clk *clk; 533 struct clk_parent_data parent_data[2]; 534 char name[64]; 535 536 memset(&parent_data, 0, sizeof(parent_data)); 537 init.parent_data = parent_data; 538 539 /* algorithm for pow2 div: rate = freq / 4 / (2 ^ N) */ 540 541 pow2_fixed_div = devm_kzalloc(dev, sizeof(*pow2_fixed_div), GFP_KERNEL); 542 if (!pow2_fixed_div) 543 return -ENOMEM; 544 545 snprintf(name, sizeof(name), "%s#pow2_fixed_div", dev_name(dev)); 546 init.name = name; 547 init.ops = &clk_fixed_factor_ops; 548 init.flags = 0; 549 parent_data[0].hw = __clk_get_hw(spicc->pclk); 551 parent_data[0].hw = __clk_get_hw(spicc->core); 552 init.num_parents = 1; 553 554 pow2_fixed_div->mult = 1, 555 pow2_fixed_div->div = 4, 556 pow2_fixed_div->hw.init = &init; 557 558 clk = devm_clk_register(dev, &pow2_fixed_div->hw); 559 if (WARN_ON(IS_ERR(clk))) 560 return PTR_ERR(clk); 561 562 pow2_div = devm_kzalloc(dev, sizeof(*pow2_div), GFP_KERNEL); 563 if (!pow2_div) 564 return -ENOMEM; 565 566 snprintf(name, sizeof(name), "%s#pow2_div", dev_name(dev)); 567 init.name = name; 568 init.ops = &clk_divider_ops; 569 init.flags = CLK_SET_RATE_PARENT; 570 parent_data[0].hw = &pow2_fixed_div->hw; 571 init.num_parents = 1; 572 573 pow2_div->shift = 16, 574 pow2_div->width = 3, 575 pow2_div->flags = CLK_DIVIDER_POWER_OF_TWO, 576 pow2_div->reg = spicc->base + SPICC_CONREG; 577 pow2_div->hw.init = &init; 578 579 clk = devm_clk_register(dev, &pow2_div->hw); 580 if (WARN_ON(IS_ERR(clk))) 581 return PTR_ERR(clk); 582 583 if (!spicc->data->has_enhance_clk_div) { 584 spicc->clk = clk; 585 return 0; 586 } 587 588 /* algorithm for enh div: rate = freq / 2 / (N + 1) */ 589 590 enh_fixed_div = devm_kzalloc(dev, sizeof(*enh_fixed_div), GFP_KERNEL); 591 if (!enh_fixed_div) 592 return -ENOMEM; 593 594 snprintf(name, sizeof(name), "%s#enh_fixed_div", dev_name(dev)); 595 init.name = name; 596 init.ops = &clk_fixed_factor_ops; 597 init.flags = 0; 598 if (spicc->data->has_pclk) 599 parent_data[0].hw = __clk_get_hw(spicc->pclk); 600 else 601 parent_data[0].hw = __clk_get_hw(spicc->core); 602 init.num_parents = 1; 603 604 enh_fixed_div->mult = 1, 605 enh_fixed_div->div = 2, 606 enh_fixed_div->hw.init = &init; 607 608 clk = devm_clk_register(dev, &enh_fixed_div->hw); 609 if (WARN_ON(IS_ERR(clk))) 610 return PTR_ERR(clk); 611 612 enh_div = devm_kzalloc(dev, sizeof(*enh_div), GFP_KERNEL); 613 if (!enh_div) 614 return -ENOMEM; 615 616 snprintf(name, sizeof(name), "%s#enh_div", dev_name(dev)); 617 init.name = name; 618 init.ops = &clk_divider_ops; 619 init.flags = CLK_SET_RATE_PARENT; 620 parent_data[0].hw = &enh_fixed_div->hw; 621 init.num_parents = 1; 622 623 enh_div->shift = 16, 624 enh_div->width = 8, 625 enh_div->reg = spicc->base + SPICC_ENH_CTL0; 626 enh_div->hw.init = &init; 627 628 clk = devm_clk_register(dev, &enh_div->hw); 629 if (WARN_ON(IS_ERR(clk))) 630 return PTR_ERR(clk); 631 632 mux = devm_kzalloc(dev, sizeof(*mux), GFP_KERNEL); 633 if (!mux) 634 return -ENOMEM; 635 636 snprintf(name, sizeof(name), "%s#sel", dev_name(dev)); 637 init.name = name; 638 init.ops = &clk_mux_ops; 639 parent_data[0].hw = &pow2_div->hw; 640 parent_data[1].hw = &enh_div->hw; 641 init.num_parents = 2; 642 init.flags = CLK_SET_RATE_PARENT; 643 644 mux->mask = 0x1, 645 mux->shift = 24, 646 mux->reg = spicc->base + SPICC_ENH_CTL0; 647 mux->hw.init = &init; 648 649 spicc->clk = devm_clk_register(dev, &mux->hw); 650 if (WARN_ON(IS_ERR(spicc->clk))) 651 return PTR_ERR(spicc->clk); 652 653 return 0; 654 } 655 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org