Re: [PATCH 3/3] spi: meson-axg: add a linear clock divider support

From: kbuild test robot
Date: Thu May 03 2018 - 22:23:27 EST

Hi Sunny,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on v4.17-rc3]
[also build test ERROR on next-20180503]
[cannot apply to spi/for-next]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Yixun-Lan/spi-meson-axg-add-few-enhanced-features/20180504-083512
config: sparc64-allmodconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=sparc64

All error/warnings (new ones prefixed by >>):

>> drivers//spi/spi-meson-spicc.c:517:15: error: variable 'meson_spicc_div0' has initializer but incomplete type
static struct clk_fixed_factor meson_spicc_div0 = {
^~~~~~~~~~~~~~~~
>> drivers//spi/spi-meson-spicc.c:518:3: error: 'struct clk_fixed_factor' has no member named 'mult'
.mult = 1,
^~~~
>> drivers//spi/spi-meson-spicc.c:518:10: warning: excess elements in struct initializer
.mult = 1,
^
drivers//spi/spi-meson-spicc.c:518:10: note: (near initialization for 'meson_spicc_div0')
>> drivers//spi/spi-meson-spicc.c:519:3: error: 'struct clk_fixed_factor' has no member named 'div'
.div = 4,
^~~
drivers//spi/spi-meson-spicc.c:519:9: warning: excess elements in struct initializer
.div = 4,
^
drivers//spi/spi-meson-spicc.c:519:9: note: (near initialization for 'meson_spicc_div0')
>> drivers//spi/spi-meson-spicc.c:522:15: error: variable 'meson_spicc_div1' has initializer but incomplete type
static struct clk_divider meson_spicc_div1 = {
^~~~~~~~~~~
>> drivers//spi/spi-meson-spicc.c:523:3: error: 'struct clk_divider' has no member named 'reg'
.reg = (void *) SPICC_CONREG,
^~~
drivers//spi/spi-meson-spicc.c:523:9: warning: excess elements in struct initializer
.reg = (void *) SPICC_CONREG,
^
drivers//spi/spi-meson-spicc.c:523:9: note: (near initialization for 'meson_spicc_div1')
>> drivers//spi/spi-meson-spicc.c:524:3: error: 'struct clk_divider' has no member named 'shift'
.shift = 16,
^~~~~
drivers//spi/spi-meson-spicc.c:524:11: warning: excess elements in struct initializer
.shift = 16,
^~
drivers//spi/spi-meson-spicc.c:524:11: note: (near initialization for 'meson_spicc_div1')
>> drivers//spi/spi-meson-spicc.c:525:3: error: 'struct clk_divider' has no member named 'width'
.width = 3,
^~~~~
drivers//spi/spi-meson-spicc.c:525:11: warning: excess elements in struct initializer
.width = 3,
^
drivers//spi/spi-meson-spicc.c:525:11: note: (near initialization for 'meson_spicc_div1')
>> drivers//spi/spi-meson-spicc.c:526:3: error: 'struct clk_divider' has no member named 'flags'
.flags = CLK_DIVIDER_POWER_OF_TWO,
^~~~~
>> drivers//spi/spi-meson-spicc.c:526:11: error: 'CLK_DIVIDER_POWER_OF_TWO' undeclared here (not in a function)
.flags = CLK_DIVIDER_POWER_OF_TWO,
^~~~~~~~~~~~~~~~~~~~~~~~
drivers//spi/spi-meson-spicc.c:526:11: warning: excess elements in struct initializer
drivers//spi/spi-meson-spicc.c:526:11: note: (near initialization for 'meson_spicc_div1')
>> drivers//spi/spi-meson-spicc.c:530:15: error: variable 'meson_spicc_div2' has initializer but incomplete type
static struct clk_fixed_factor meson_spicc_div2 = {
^~~~~~~~~~~~~~~~
drivers//spi/spi-meson-spicc.c:531:3: error: 'struct clk_fixed_factor' has no member named 'mult'
.mult = 1,
^~~~
drivers//spi/spi-meson-spicc.c:531:10: warning: excess elements in struct initializer
.mult = 1,
^
drivers//spi/spi-meson-spicc.c:531:10: note: (near initialization for 'meson_spicc_div2')
drivers//spi/spi-meson-spicc.c:532:3: error: 'struct clk_fixed_factor' has no member named 'div'
.div = 2,
^~~
drivers//spi/spi-meson-spicc.c:532:9: warning: excess elements in struct initializer
.div = 2,
^
drivers//spi/spi-meson-spicc.c:532:9: note: (near initialization for 'meson_spicc_div2')
>> drivers//spi/spi-meson-spicc.c:535:15: error: variable 'meson_spicc_div3' has initializer but incomplete type
static struct clk_divider meson_spicc_div3 = {
^~~~~~~~~~~
drivers//spi/spi-meson-spicc.c:536:3: error: 'struct clk_divider' has no member named 'reg'
.reg = (void *) SPICC_ENH_CTL0,
^~~
drivers//spi/spi-meson-spicc.c:536:9: warning: excess elements in struct initializer
.reg = (void *) SPICC_ENH_CTL0,
^
drivers//spi/spi-meson-spicc.c:536:9: note: (near initialization for 'meson_spicc_div3')
drivers//spi/spi-meson-spicc.c:537:3: error: 'struct clk_divider' has no member named 'shift'
.shift = 16,
^~~~~
drivers//spi/spi-meson-spicc.c:537:11: warning: excess elements in struct initializer
.shift = 16,
^~
drivers//spi/spi-meson-spicc.c:537:11: note: (near initialization for 'meson_spicc_div3')
drivers//spi/spi-meson-spicc.c:538:3: error: 'struct clk_divider' has no member named 'width'
.width = 8,
^~~~~
drivers//spi/spi-meson-spicc.c:538:11: warning: excess elements in struct initializer
.width = 8,
^
drivers//spi/spi-meson-spicc.c:538:11: note: (near initialization for 'meson_spicc_div3')
>> drivers//spi/spi-meson-spicc.c:541:15: error: variable 'meson_spicc_sel' has initializer but incomplete type
static struct clk_mux meson_spicc_sel = {
^~~~~~~
>> drivers//spi/spi-meson-spicc.c:542:3: error: 'struct clk_mux' has no member named 'reg'
.reg = (void *) SPICC_ENH_CTL0,
^~~
drivers//spi/spi-meson-spicc.c:542:9: warning: excess elements in struct initializer
.reg = (void *) SPICC_ENH_CTL0,
^
drivers//spi/spi-meson-spicc.c:542:9: note: (near initialization for 'meson_spicc_sel')
>> drivers//spi/spi-meson-spicc.c:543:3: error: 'struct clk_mux' has no member named 'mask'
.mask = 0x1,
^~~~
drivers//spi/spi-meson-spicc.c:543:10: warning: excess elements in struct initializer
.mask = 0x1,
^~~
drivers//spi/spi-meson-spicc.c:543:10: note: (near initialization for 'meson_spicc_sel')
>> drivers//spi/spi-meson-spicc.c:544:3: error: 'struct clk_mux' has no member named 'shift'
.shift = 24,
^~~~~
drivers//spi/spi-meson-spicc.c:544:11: warning: excess elements in struct initializer
.shift = 24,
^~
drivers//spi/spi-meson-spicc.c:544:11: note: (near initialization for 'meson_spicc_sel')
drivers//spi/spi-meson-spicc.c: In function 'meson_spicc_clk_init':
>> drivers//spi/spi-meson-spicc.c:553:23: error: storage size of 'init' isn't known
struct clk_init_data init;
^~~~
>> drivers//spi/spi-meson-spicc.c:562:14: error: 'clk_fixed_factor_ops' undeclared (first use in this function); did you mean 'clk_fixed_factor'?
init.ops = &clk_fixed_factor_ops;
^~~~~~~~~~~~~~~~~~~~
clk_fixed_factor
drivers//spi/spi-meson-spicc.c:562:14: note: each undeclared identifier is reported only once for each function it appears in
>> drivers//spi/spi-meson-spicc.c:564:20: error: implicit declaration of function '__clk_get_name'; did you mean 'clk_get_rate'? [-Werror=implicit-function-declaration]
parent_names[0] = __clk_get_name(spicc->core);
^~~~~~~~~~~~~~
clk_get_rate
>> drivers//spi/spi-meson-spicc.c:564:18: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
parent_names[0] = __clk_get_name(spicc->core);
^

vim +/meson_spicc_div0 +517 drivers//spi/spi-meson-spicc.c

497
498 /*
499 * The Clock Mux
500 * x-----------------x x------------x x------\
501 * |---| 0) fixed factor |---| 1) old div |----| |
502 * | x-----------------x x------------x | |
503 * src ---| |5) mux|-- out
504 * | x-----------------x x------------x | |
505 * |---| 2) fixed factor |---| 3) new div |0---| |
506 * x-----------------x x------------x x------/
507 *
508 * Clk path for GX series:
509 * src -> 0 -> 1 -> out
510 *
511 * Clk path for AXG series:
512 * src -> 0 -> 1 -> 5 -> out
513 * src -> 2 -> 3 -> 5 -> out
514 */
515
516 /* algorithm for div0 + div1: rate = freq / 4 / (2 ^ N) */
> 517 static struct clk_fixed_factor meson_spicc_div0 = {
> 518 .mult = 1,
> 519 .div = 4,
520 };
521
> 522 static struct clk_divider meson_spicc_div1 = {
> 523 .reg = (void *) SPICC_CONREG,
> 524 .shift = 16,
> 525 .width = 3,
> 526 .flags = CLK_DIVIDER_POWER_OF_TWO,
527 };
528
529 /* algorithm for div2 + div3: rate = freq / 2 / (N + 1) */
> 530 static struct clk_fixed_factor meson_spicc_div2 = {
> 531 .mult = 1,
532 .div = 2,
533 };
534
> 535 static struct clk_divider meson_spicc_div3 = {
536 .reg = (void *) SPICC_ENH_CTL0,
> 537 .shift = 16,
> 538 .width = 8,
539 };
540
> 541 static struct clk_mux meson_spicc_sel = {
> 542 .reg = (void *) SPICC_ENH_CTL0,
> 543 .mask = 0x1,
> 544 .shift = 24,
545 };
546
547 static int meson_spicc_clk_init(struct meson_spicc_device *spicc)
548 {
549 struct device *dev = &spicc->pdev->dev;
550 struct clk_fixed_factor *div0;
551 struct clk_divider *div1;
552 struct clk_mux *mux;
> 553 struct clk_init_data init;
554 struct clk *clk;
555 const char *parent_names[1];
556 const char *mux_parent_names[2];
557 char name[32];
558
559 div0 = &meson_spicc_div0;
560 snprintf(name, sizeof(name), "%s#_div0", dev_name(dev));
561 init.name = name;
> 562 init.ops = &clk_fixed_factor_ops;
563 init.flags = 0;
> 564 parent_names[0] = __clk_get_name(spicc->core);
565 init.parent_names = parent_names;
566 init.num_parents = 1;
567
> 568 div0->hw.init = &init;
569
> 570 clk = devm_clk_register(dev, &div0->hw);
571 if (WARN_ON(IS_ERR(clk)))
572 return PTR_ERR(clk);
573
574 div1 = &meson_spicc_div1;
575 snprintf(name, sizeof(name), "%s#_div1", dev_name(dev));
576 init.name = name;
> 577 init.ops = &clk_divider_ops;
> 578 init.flags = CLK_SET_RATE_PARENT;
579 parent_names[0] = __clk_get_name(clk);
580 init.parent_names = parent_names;
581 init.num_parents = 1;
582
> 583 div1->reg = spicc->base + (u64) div1->reg;
584 div1->hw.init = &init;
585
586 clk = devm_clk_register(dev, &div1->hw);
587 if (WARN_ON(IS_ERR(clk)))
588 return PTR_ERR(clk);
589
590 if (spicc->data->has_enhance_clk_div == false) {
591 spicc->clk = clk;
592 return 0;
593 }
594
595 mux_parent_names[0] = __clk_get_name(clk);
596
597 div0 = &meson_spicc_div2;
598 snprintf(name, sizeof(name), "%s#_div2", dev_name(dev));
599 init.name = name;
600 init.ops = &clk_fixed_factor_ops;
601 init.flags = 0;
> 602 parent_names[0] = __clk_get_name(spicc->core);
603 init.parent_names = parent_names;
604 init.num_parents = 1;
605
606 div0->hw.init = &init;
607
608 clk = devm_clk_register(dev, &div0->hw);
609 if (WARN_ON(IS_ERR(clk)))
610 return PTR_ERR(clk);
611
612 div1 = &meson_spicc_div3;
613 snprintf(name, sizeof(name), "%s#_div3", dev_name(dev));
614 init.name = name;
615 init.ops = &clk_divider_ops;
616 init.flags = CLK_SET_RATE_PARENT;
617 parent_names[0] = __clk_get_name(clk);
618 init.parent_names = parent_names;
619 init.num_parents = 1;
620
621 div1->reg = spicc->base + (u64) div1->reg;
622 div1->hw.init = &init;
623
624 clk = devm_clk_register(dev, &div1->hw);
625 if (WARN_ON(IS_ERR(clk)))
626 return PTR_ERR(clk);
627
> 628 mux_parent_names[1] = __clk_get_name(clk);
629
630 mux = &meson_spicc_sel;
631 snprintf(name, sizeof(name), "%s#_sel", dev_name(dev));
632 init.name = name;
> 633 init.ops = &clk_mux_ops;
634 init.parent_names = mux_parent_names;
635 init.num_parents = 2;
> 636 init.flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT;
637
> 638 mux->reg = spicc->base + (u64) mux->reg;
639 mux->hw.init = &init;
640
641 spicc->clk = devm_clk_register(dev, &mux->hw);
642 if (WARN_ON(IS_ERR(spicc->clk)))
643 return PTR_ERR(spicc->clk);
644
645 clk_set_parent(spicc->clk, clk);
646 return 0;
647 }
648

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