Re: [PATCH 1/7] regulator: s5m8767: switch to using devm_fwnode_gpiod_get

From: kbuild test robot
Date: Sat Oct 05 2019 - 02:43:26 EST

Hi Dmitry,

I love your patch! Yet something to improve:

[auto build test ERROR on regulator/for-next]
[cannot apply to v5.4-rc1 next-20191004]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url: https://github.com/0day-ci/linux/commits/Dmitry-Torokhov/regulator-switch-to-using-devm_-fwnode_gpiod_get_index/20191005-085020
base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-next
config: xtensa-allyesconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 7.4.0
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
GCC_VERSION=7.4.0 make.cross ARCH=xtensa

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

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

drivers/regulator/s5m8767.c: In function 's5m8767_pmic_dt_parse_pdata':
>> drivers/regulator/s5m8767.c:570:30: error: implicit declaration of function 'devm_fwnode_gpiod_get'; did you mean 'devm_gpiod_get'? [-Werror=implicit-function-declaration]
rdata->ext_control_gpiod = devm_fwnode_gpiod_get(
^~~~~~~~~~~~~~~~~~~~~
devm_gpiod_get
>> drivers/regulator/s5m8767.c:570:28: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
rdata->ext_control_gpiod = devm_fwnode_gpiod_get(
^
cc1: some warnings being treated as errors

vim +570 drivers/regulator/s5m8767.c

519
520 static int s5m8767_pmic_dt_parse_pdata(struct platform_device *pdev,
521 struct sec_platform_data *pdata)
522 {
523 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
524 struct device_node *pmic_np, *regulators_np, *reg_np;
525 struct sec_regulator_data *rdata;
526 struct sec_opmode_data *rmode;
527 unsigned int i, dvs_voltage_nr = 8, ret;
528
529 pmic_np = iodev->dev->of_node;
530 if (!pmic_np) {
531 dev_err(iodev->dev, "could not find pmic sub-node\n");
532 return -ENODEV;
533 }
534
535 regulators_np = of_get_child_by_name(pmic_np, "regulators");
536 if (!regulators_np) {
537 dev_err(iodev->dev, "could not find regulators sub-node\n");
538 return -EINVAL;
539 }
540
541 /* count the number of regulators to be supported in pmic */
542 pdata->num_regulators = of_get_child_count(regulators_np);
543
544 rdata = devm_kcalloc(&pdev->dev,
545 pdata->num_regulators, sizeof(*rdata),
546 GFP_KERNEL);
547 if (!rdata)
548 return -ENOMEM;
549
550 rmode = devm_kcalloc(&pdev->dev,
551 pdata->num_regulators, sizeof(*rmode),
552 GFP_KERNEL);
553 if (!rmode)
554 return -ENOMEM;
555
556 pdata->regulators = rdata;
557 pdata->opmode = rmode;
558 for_each_child_of_node(regulators_np, reg_np) {
559 for (i = 0; i < ARRAY_SIZE(regulators); i++)
560 if (of_node_name_eq(reg_np, regulators[i].name))
561 break;
562
563 if (i == ARRAY_SIZE(regulators)) {
564 dev_warn(iodev->dev,
565 "don't know how to configure regulator %pOFn\n",
566 reg_np);
567 continue;
568 }
569
> 570 rdata->ext_control_gpiod = devm_fwnode_gpiod_get(
571 &pdev->dev,
572 of_fwnode_handle(reg_np),
573 "s5m8767,pmic-ext-control",
574 GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE,
575 "s5m8767");
576 if (PTR_ERR(rdata->ext_control_gpiod) == -ENOENT)
577 rdata->ext_control_gpiod = NULL;
578 else if (IS_ERR(rdata->ext_control_gpiod))
579 return PTR_ERR(rdata->ext_control_gpiod);
580
581 rdata->id = i;
582 rdata->initdata = of_get_regulator_init_data(
583 &pdev->dev, reg_np,
584 &regulators[i]);
585 rdata->reg_node = reg_np;
586 rdata++;
587 rmode->id = i;
588 if (of_property_read_u32(reg_np, "op_mode",
589 &rmode->mode)) {
590 dev_warn(iodev->dev,
591 "no op_mode property property at %pOF\n",
592 reg_np);
593
594 rmode->mode = S5M8767_OPMODE_NORMAL_MODE;
595 }
596 rmode++;
597 }
598
599 of_node_put(regulators_np);
600
601 if (of_get_property(pmic_np, "s5m8767,pmic-buck2-uses-gpio-dvs", NULL)) {
602 pdata->buck2_gpiodvs = true;
603
604 if (of_property_read_u32_array(pmic_np,
605 "s5m8767,pmic-buck2-dvs-voltage",
606 pdata->buck2_voltage, dvs_voltage_nr)) {
607 dev_err(iodev->dev, "buck2 voltages not specified\n");
608 return -EINVAL;
609 }
610 }
611
612 if (of_get_property(pmic_np, "s5m8767,pmic-buck3-uses-gpio-dvs", NULL)) {
613 pdata->buck3_gpiodvs = true;
614
615 if (of_property_read_u32_array(pmic_np,
616 "s5m8767,pmic-buck3-dvs-voltage",
617 pdata->buck3_voltage, dvs_voltage_nr)) {
618 dev_err(iodev->dev, "buck3 voltages not specified\n");
619 return -EINVAL;
620 }
621 }
622
623 if (of_get_property(pmic_np, "s5m8767,pmic-buck4-uses-gpio-dvs", NULL)) {
624 pdata->buck4_gpiodvs = true;
625
626 if (of_property_read_u32_array(pmic_np,
627 "s5m8767,pmic-buck4-dvs-voltage",
628 pdata->buck4_voltage, dvs_voltage_nr)) {
629 dev_err(iodev->dev, "buck4 voltages not specified\n");
630 return -EINVAL;
631 }
632 }
633
634 if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs ||
635 pdata->buck4_gpiodvs) {
636 ret = s5m8767_pmic_dt_parse_dvs_gpio(iodev, pdata, pmic_np);
637 if (ret)
638 return -EINVAL;
639
640 if (of_property_read_u32(pmic_np,
641 "s5m8767,pmic-buck-default-dvs-idx",
642 &pdata->buck_default_idx)) {
643 pdata->buck_default_idx = 0;
644 } else {
645 if (pdata->buck_default_idx >= 8) {
646 pdata->buck_default_idx = 0;
647 dev_info(iodev->dev,
648 "invalid value for default dvs index, use 0\n");
649 }
650 }
651 }
652
653 ret = s5m8767_pmic_dt_parse_ds_gpio(iodev, pdata, pmic_np);
654 if (ret)
655 return -EINVAL;
656
657 if (of_get_property(pmic_np, "s5m8767,pmic-buck2-ramp-enable", NULL))
658 pdata->buck2_ramp_enable = true;
659
660 if (of_get_property(pmic_np, "s5m8767,pmic-buck3-ramp-enable", NULL))
661 pdata->buck3_ramp_enable = true;
662
663 if (of_get_property(pmic_np, "s5m8767,pmic-buck4-ramp-enable", NULL))
664 pdata->buck4_ramp_enable = true;
665
666 if (pdata->buck2_ramp_enable || pdata->buck3_ramp_enable
667 || pdata->buck4_ramp_enable) {
668 if (of_property_read_u32(pmic_np, "s5m8767,pmic-buck-ramp-delay",
669 &pdata->buck_ramp_delay))
670 pdata->buck_ramp_delay = 0;
671 }
672
673 return 0;
674 }
675 #else
676 static int s5m8767_pmic_dt_parse_pdata(struct platform_device *pdev,
677 struct sec_platform_data *pdata)
678 {
679 return 0;
680 }
681 #endif /* CONFIG_OF */
682

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