Re: [PATCH 6/6] extcon: sm5502: Add support for SM5504

From: kernel test robot
Date: Sun May 23 2021 - 20:56:50 EST


Hi Stephan,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on chanwoo-extcon/extcon-next]
[also build test WARNING on robh/for-next linus/master v5.13-rc2 next-20210521]
[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/Stephan-Gerhold/extcon-sm5502-Add-support-for-SM5504/20210522-215255
base: https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon.git extcon-next
config: x86_64-randconfig-b001-20210522 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project e84a9b9bb3051c35dea993cdad7b3d2575638f85)
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
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# https://github.com/0day-ci/linux/commit/f9928587360c40e166418ea5b10fc0c210b93330
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Stephan-Gerhold/extcon-sm5502-Add-support-for-SM5504/20210522-215255
git checkout f9928587360c40e166418ea5b10fc0c210b93330
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64

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

All warnings (new ones prefixed by >>):

>> drivers/extcon/extcon-sm5502.c:696:15: warning: cast to smaller integer type 'enum sm5502_types' from 'const void *' [-Wvoid-pointer-to-enum-cast]
info->type = (enum sm5502_types)device_get_match_data(info->dev);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.


vim +696 drivers/extcon/extcon-sm5502.c

914b881f9452fd Chanwoo Choi 2014-05-22 677
9e92a019f01894 Stephan Gerhold 2021-05-20 678 static int sm5022_muic_i2c_probe(struct i2c_client *i2c)
914b881f9452fd Chanwoo Choi 2014-05-22 679 {
914b881f9452fd Chanwoo Choi 2014-05-22 680 struct device_node *np = i2c->dev.of_node;
f9928587360c40 Stephan Gerhold 2021-05-20 681 const struct regmap_irq_chip *irq_chip;
914b881f9452fd Chanwoo Choi 2014-05-22 682 struct sm5502_muic_info *info;
914b881f9452fd Chanwoo Choi 2014-05-22 683 int i, ret, irq_flags;
914b881f9452fd Chanwoo Choi 2014-05-22 684
914b881f9452fd Chanwoo Choi 2014-05-22 685 if (!np)
914b881f9452fd Chanwoo Choi 2014-05-22 686 return -EINVAL;
914b881f9452fd Chanwoo Choi 2014-05-22 687
914b881f9452fd Chanwoo Choi 2014-05-22 688 info = devm_kzalloc(&i2c->dev, sizeof(*info), GFP_KERNEL);
914b881f9452fd Chanwoo Choi 2014-05-22 689 if (!info)
914b881f9452fd Chanwoo Choi 2014-05-22 690 return -ENOMEM;
914b881f9452fd Chanwoo Choi 2014-05-22 691 i2c_set_clientdata(i2c, info);
914b881f9452fd Chanwoo Choi 2014-05-22 692
914b881f9452fd Chanwoo Choi 2014-05-22 693 info->dev = &i2c->dev;
914b881f9452fd Chanwoo Choi 2014-05-22 694 info->i2c = i2c;
914b881f9452fd Chanwoo Choi 2014-05-22 695 info->irq = i2c->irq;
f9928587360c40 Stephan Gerhold 2021-05-20 @696 info->type = (enum sm5502_types)device_get_match_data(info->dev);
f9928587360c40 Stephan Gerhold 2021-05-20 697
f9928587360c40 Stephan Gerhold 2021-05-20 698 switch (info->type) {
f9928587360c40 Stephan Gerhold 2021-05-20 699 case TYPE_SM5502:
f9928587360c40 Stephan Gerhold 2021-05-20 700 irq_chip = &sm5502_muic_irq_chip;
914b881f9452fd Chanwoo Choi 2014-05-22 701 info->muic_irqs = sm5502_muic_irqs;
914b881f9452fd Chanwoo Choi 2014-05-22 702 info->num_muic_irqs = ARRAY_SIZE(sm5502_muic_irqs);
914b881f9452fd Chanwoo Choi 2014-05-22 703 info->reg_data = sm5502_reg_data;
914b881f9452fd Chanwoo Choi 2014-05-22 704 info->num_reg_data = ARRAY_SIZE(sm5502_reg_data);
f9928587360c40 Stephan Gerhold 2021-05-20 705 break;
f9928587360c40 Stephan Gerhold 2021-05-20 706 case TYPE_SM5504:
f9928587360c40 Stephan Gerhold 2021-05-20 707 irq_chip = &sm5504_muic_irq_chip;
f9928587360c40 Stephan Gerhold 2021-05-20 708 info->muic_irqs = sm5504_muic_irqs;
f9928587360c40 Stephan Gerhold 2021-05-20 709 info->num_muic_irqs = ARRAY_SIZE(sm5504_muic_irqs);
f9928587360c40 Stephan Gerhold 2021-05-20 710 info->reg_data = sm5504_reg_data;
f9928587360c40 Stephan Gerhold 2021-05-20 711 info->num_reg_data = ARRAY_SIZE(sm5504_reg_data);
f9928587360c40 Stephan Gerhold 2021-05-20 712 break;
f9928587360c40 Stephan Gerhold 2021-05-20 713 default:
f9928587360c40 Stephan Gerhold 2021-05-20 714 return -EINVAL;
f9928587360c40 Stephan Gerhold 2021-05-20 715 }
914b881f9452fd Chanwoo Choi 2014-05-22 716
914b881f9452fd Chanwoo Choi 2014-05-22 717 mutex_init(&info->mutex);
914b881f9452fd Chanwoo Choi 2014-05-22 718
914b881f9452fd Chanwoo Choi 2014-05-22 719 INIT_WORK(&info->irq_work, sm5502_muic_irq_work);
914b881f9452fd Chanwoo Choi 2014-05-22 720
914b881f9452fd Chanwoo Choi 2014-05-22 721 info->regmap = devm_regmap_init_i2c(i2c, &sm5502_muic_regmap_config);
914b881f9452fd Chanwoo Choi 2014-05-22 722 if (IS_ERR(info->regmap)) {
914b881f9452fd Chanwoo Choi 2014-05-22 723 ret = PTR_ERR(info->regmap);
914b881f9452fd Chanwoo Choi 2014-05-22 724 dev_err(info->dev, "failed to allocate register map: %d\n",
914b881f9452fd Chanwoo Choi 2014-05-22 725 ret);
914b881f9452fd Chanwoo Choi 2014-05-22 726 return ret;
914b881f9452fd Chanwoo Choi 2014-05-22 727 }
914b881f9452fd Chanwoo Choi 2014-05-22 728
914b881f9452fd Chanwoo Choi 2014-05-22 729 /* Support irq domain for SM5502 MUIC device */
914b881f9452fd Chanwoo Choi 2014-05-22 730 irq_flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT | IRQF_SHARED;
f9928587360c40 Stephan Gerhold 2021-05-20 731 ret = devm_regmap_add_irq_chip(info->dev, info->regmap, info->irq,
f9928587360c40 Stephan Gerhold 2021-05-20 732 irq_flags, 0, irq_chip, &info->irq_data);
914b881f9452fd Chanwoo Choi 2014-05-22 733 if (ret != 0) {
914b881f9452fd Chanwoo Choi 2014-05-22 734 dev_err(info->dev, "failed to request IRQ %d: %d\n",
914b881f9452fd Chanwoo Choi 2014-05-22 735 info->irq, ret);
914b881f9452fd Chanwoo Choi 2014-05-22 736 return ret;
914b881f9452fd Chanwoo Choi 2014-05-22 737 }
914b881f9452fd Chanwoo Choi 2014-05-22 738
914b881f9452fd Chanwoo Choi 2014-05-22 739 for (i = 0; i < info->num_muic_irqs; i++) {
914b881f9452fd Chanwoo Choi 2014-05-22 740 struct muic_irq *muic_irq = &info->muic_irqs[i];
363b389106e676 Andrzej Hajda 2015-09-24 741 int virq = 0;
914b881f9452fd Chanwoo Choi 2014-05-22 742
914b881f9452fd Chanwoo Choi 2014-05-22 743 virq = regmap_irq_get_virq(info->irq_data, muic_irq->irq);
914b881f9452fd Chanwoo Choi 2014-05-22 744 if (virq <= 0)
914b881f9452fd Chanwoo Choi 2014-05-22 745 return -EINVAL;
914b881f9452fd Chanwoo Choi 2014-05-22 746 muic_irq->virq = virq;
914b881f9452fd Chanwoo Choi 2014-05-22 747
914b881f9452fd Chanwoo Choi 2014-05-22 748 ret = devm_request_threaded_irq(info->dev, virq, NULL,
914b881f9452fd Chanwoo Choi 2014-05-22 749 sm5502_muic_irq_handler,
005ad18727b489 Vasyl Gomonovych 2019-07-19 750 IRQF_NO_SUSPEND | IRQF_ONESHOT,
914b881f9452fd Chanwoo Choi 2014-05-22 751 muic_irq->name, info);
914b881f9452fd Chanwoo Choi 2014-05-22 752 if (ret) {
fbae30d8dd3545 Chanwoo Choi 2014-08-12 753 dev_err(info->dev,
fbae30d8dd3545 Chanwoo Choi 2014-08-12 754 "failed: irq request (IRQ: %d, error :%d)\n",
fbae30d8dd3545 Chanwoo Choi 2014-08-12 755 muic_irq->irq, ret);
914b881f9452fd Chanwoo Choi 2014-05-22 756 return ret;
914b881f9452fd Chanwoo Choi 2014-05-22 757 }
914b881f9452fd Chanwoo Choi 2014-05-22 758 }
914b881f9452fd Chanwoo Choi 2014-05-22 759
914b881f9452fd Chanwoo Choi 2014-05-22 760 /* Allocate extcon device */
914b881f9452fd Chanwoo Choi 2014-05-22 761 info->edev = devm_extcon_dev_allocate(info->dev, sm5502_extcon_cable);
914b881f9452fd Chanwoo Choi 2014-05-22 762 if (IS_ERR(info->edev)) {
914b881f9452fd Chanwoo Choi 2014-05-22 763 dev_err(info->dev, "failed to allocate memory for extcon\n");
914b881f9452fd Chanwoo Choi 2014-05-22 764 return -ENOMEM;
914b881f9452fd Chanwoo Choi 2014-05-22 765 }
914b881f9452fd Chanwoo Choi 2014-05-22 766
914b881f9452fd Chanwoo Choi 2014-05-22 767 /* Register extcon device */
914b881f9452fd Chanwoo Choi 2014-05-22 768 ret = devm_extcon_dev_register(info->dev, info->edev);
914b881f9452fd Chanwoo Choi 2014-05-22 769 if (ret) {
914b881f9452fd Chanwoo Choi 2014-05-22 770 dev_err(info->dev, "failed to register extcon device\n");
914b881f9452fd Chanwoo Choi 2014-05-22 771 return ret;
914b881f9452fd Chanwoo Choi 2014-05-22 772 }
914b881f9452fd Chanwoo Choi 2014-05-22 773
e1954452f500cb Chanwoo Choi 2014-05-28 774 /*
e1954452f500cb Chanwoo Choi 2014-05-28 775 * Detect accessory after completing the initialization of platform
e1954452f500cb Chanwoo Choi 2014-05-28 776 *
e1954452f500cb Chanwoo Choi 2014-05-28 777 * - Use delayed workqueue to detect cable state and then
e1954452f500cb Chanwoo Choi 2014-05-28 778 * notify cable state to notifiee/platform through uevent.
e1954452f500cb Chanwoo Choi 2014-05-28 779 * After completing the booting of platform, the extcon provider
e1954452f500cb Chanwoo Choi 2014-05-28 780 * driver should notify cable state to upper layer.
e1954452f500cb Chanwoo Choi 2014-05-28 781 */
e1954452f500cb Chanwoo Choi 2014-05-28 782 INIT_DELAYED_WORK(&info->wq_detcable, sm5502_muic_detect_cable_wq);
e1954452f500cb Chanwoo Choi 2014-05-28 783 queue_delayed_work(system_power_efficient_wq, &info->wq_detcable,
e1954452f500cb Chanwoo Choi 2014-05-28 784 msecs_to_jiffies(DELAY_MS_DEFAULT));
e1954452f500cb Chanwoo Choi 2014-05-28 785
914b881f9452fd Chanwoo Choi 2014-05-22 786 /* Initialize SM5502 device and print vendor id and version id */
914b881f9452fd Chanwoo Choi 2014-05-22 787 sm5502_init_dev_type(info);
914b881f9452fd Chanwoo Choi 2014-05-22 788
914b881f9452fd Chanwoo Choi 2014-05-22 789 return 0;
914b881f9452fd Chanwoo Choi 2014-05-22 790 }
914b881f9452fd Chanwoo Choi 2014-05-22 791

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