Re: [PATCH v3 2/2] rtc: s5m: use devm_i2c_new_dummy_device()

From: kernel test robot
Date: Thu Jan 07 2021 - 13:21:37 EST

Hi Bartosz,

I love your patch! Perhaps something to improve:

[auto build test WARNING on abelloni/rtc-next]
[also build test WARNING on v5.11-rc2 next-20210104]
[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/Bartosz-Golaszewski/rtc-s5m-check-the-return-value-of-s5m8767_rtc_init_reg/20210107-214351
base: https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next
config: x86_64-randconfig-a005-20210107 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 5c951623bc8965fa1e89660f2f5f4a2944e4981a)
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/acac325366af9adafe0057352be2e0567f59d099
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Bartosz-Golaszewski/rtc-s5m-check-the-return-value-of-s5m8767_rtc_init_reg/20210107-214351
git checkout acac325366af9adafe0057352be2e0567f59d099
# 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/rtc/rtc-s5m.c:773:4: warning: format specifies type 'int' but the argument has type 'long' [-Wformat]
PTR_ERR(info->regmap));
^~~~~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:112:32: note: expanded from macro 'dev_err'
_dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
1 warning generated.


vim +773 drivers/rtc/rtc-s5m.c

712
713 static int s5m_rtc_probe(struct platform_device *pdev)
714 {
715 struct sec_pmic_dev *s5m87xx = dev_get_drvdata(pdev->dev.parent);
716 struct sec_platform_data *pdata = s5m87xx->pdata;
717 struct s5m_rtc_info *info;
718 const struct regmap_config *regmap_cfg;
719 int ret, alarm_irq;
720
721 if (!pdata) {
722 dev_err(pdev->dev.parent, "Platform data not supplied\n");
723 return -ENODEV;
724 }
725
726 info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
727 if (!info)
728 return -ENOMEM;
729
730 switch (platform_get_device_id(pdev)->driver_data) {
731 case S2MPS15X:
732 regmap_cfg = &s2mps14_rtc_regmap_config;
733 info->regs = &s2mps15_rtc_regs;
734 alarm_irq = S2MPS14_IRQ_RTCA0;
735 break;
736 case S2MPS14X:
737 regmap_cfg = &s2mps14_rtc_regmap_config;
738 info->regs = &s2mps14_rtc_regs;
739 alarm_irq = S2MPS14_IRQ_RTCA0;
740 break;
741 case S2MPS13X:
742 regmap_cfg = &s2mps14_rtc_regmap_config;
743 info->regs = &s2mps13_rtc_regs;
744 alarm_irq = S2MPS14_IRQ_RTCA0;
745 break;
746 case S5M8763X:
747 regmap_cfg = &s5m_rtc_regmap_config;
748 info->regs = &s5m_rtc_regs;
749 alarm_irq = S5M8763_IRQ_ALARM0;
750 break;
751 case S5M8767X:
752 regmap_cfg = &s5m_rtc_regmap_config;
753 info->regs = &s5m_rtc_regs;
754 alarm_irq = S5M8767_IRQ_RTCA1;
755 break;
756 default:
757 dev_err(&pdev->dev,
758 "Device type %lu is not supported by RTC driver\n",
759 platform_get_device_id(pdev)->driver_data);
760 return -ENODEV;
761 }
762
763 info->i2c = devm_i2c_new_dummy_device(&pdev->dev, s5m87xx->i2c->adapter,
764 RTC_I2C_ADDR);
765 if (IS_ERR(info->i2c)) {
766 dev_err(&pdev->dev, "Failed to allocate I2C for RTC\n");
767 return PTR_ERR(info->i2c);
768 }
769
770 info->regmap = devm_regmap_init_i2c(info->i2c, regmap_cfg);
771 if (IS_ERR(info->regmap)) {
772 dev_err(&pdev->dev, "Failed to allocate RTC register map: %d\n",
> 773 PTR_ERR(info->regmap));
774 return PTR_ERR(info->regmap);
775 }
776
777 info->dev = &pdev->dev;
778 info->s5m87xx = s5m87xx;
779 info->device_type = platform_get_device_id(pdev)->driver_data;
780
781 if (s5m87xx->irq_data) {
782 info->irq = regmap_irq_get_virq(s5m87xx->irq_data, alarm_irq);
783 if (info->irq <= 0) {
784 dev_err(&pdev->dev, "Failed to get virtual IRQ %d\n",
785 alarm_irq);
786 return -EINVAL;
787 }
788 }
789
790 platform_set_drvdata(pdev, info);
791
792 ret = s5m8767_rtc_init_reg(info);
793 if (ret)
794 return ret;
795
796 device_init_wakeup(&pdev->dev, 1);
797
798 info->rtc_dev = devm_rtc_device_register(&pdev->dev, "s5m-rtc",
799 &s5m_rtc_ops, THIS_MODULE);
800
801 if (IS_ERR(info->rtc_dev))
802 return PTR_ERR(info->rtc_dev);
803
804 if (!info->irq) {
805 dev_info(&pdev->dev, "Alarm IRQ not available\n");
806 return 0;
807 }
808
809 ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
810 s5m_rtc_alarm_irq, 0, "rtc-alarm0",
811 info);
812 if (ret < 0) {
813 dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
814 info->irq, ret);
815 return ret;
816 }
817
818 return 0;
819 }
820

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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