[robh:for-kernelci 29/68] drivers/iio/adc/twl6030-gpadc.c:886:8: warning: assignment makes pointer from integer without a cast

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-kernelci
head:   9ece0c059fa7600e46d8e2deecc2fa1bd86cde7e
commit: 23739ec864c4897c8c599ad2ad2ebe6638061ab5 [29/68] iio: Use device_get_match_data()
config: x86_64-buildonly-randconfig-001-20230902 (https://download.01.org/0day-ci/archive/20230902/202309021150.gdm6iTLj-lkp@intel.com/config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230902/202309021150.gdm6iTLj-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309021150.gdm6iTLj-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/iio/adc/twl6030-gpadc.c: In function 'twl6030_gpadc_probe':
   drivers/iio/adc/twl6030-gpadc.c:886:10: error: implicit declaration of function 'device_get_match_data'; did you mean 'device_match_any'? [-Werror=implicit-function-declaration]
     pdata = device_get_match_data(&pdev->dev);
             ^~~~~~~~~~~~~~~~~~~~~
             device_match_any
>> drivers/iio/adc/twl6030-gpadc.c:886:8: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     pdata = device_get_match_data(&pdev->dev);
           ^
   cc1: some warnings being treated as errors


vim +886 drivers/iio/adc/twl6030-gpadc.c

   876	
   877	static int twl6030_gpadc_probe(struct platform_device *pdev)
   878	{
   879		struct device *dev = &pdev->dev;
   880		struct twl6030_gpadc_data *gpadc;
   881		const struct twl6030_gpadc_platform_data *pdata;
   882		struct iio_dev *indio_dev;
   883		int irq;
   884		int ret;
   885	
 > 886		pdata = device_get_match_data(&pdev->dev);
   887		if (!pdata)
   888			return -EINVAL;
   889	
   890		indio_dev = devm_iio_device_alloc(dev, sizeof(*gpadc));
   891		if (!indio_dev)
   892			return -ENOMEM;
   893	
   894		gpadc = iio_priv(indio_dev);
   895	
   896		gpadc->twl6030_cal_tbl = devm_kcalloc(dev,
   897						pdata->nchannels,
   898						sizeof(*gpadc->twl6030_cal_tbl),
   899						GFP_KERNEL);
   900		if (!gpadc->twl6030_cal_tbl)
   901			return -ENOMEM;
   902	
   903		gpadc->dev = dev;
   904		gpadc->pdata = pdata;
   905	
   906		platform_set_drvdata(pdev, indio_dev);
   907		mutex_init(&gpadc->lock);
   908		init_completion(&gpadc->irq_complete);
   909	
   910		ret = pdata->calibrate(gpadc);
   911		if (ret < 0) {
   912			dev_err(dev, "failed to read calibration registers\n");
   913			return ret;
   914		}
   915	
   916		irq = platform_get_irq(pdev, 0);
   917		if (irq < 0)
   918			return irq;
   919	
   920		ret = devm_request_threaded_irq(dev, irq, NULL,
   921					twl6030_gpadc_irq_handler,
   922					IRQF_ONESHOT, "twl6030_gpadc", indio_dev);
   923		if (ret)
   924			return ret;
   925	
   926		ret = twl6030_gpadc_enable_irq(TWL6030_GPADC_RT_SW1_EOC_MASK);
   927		if (ret < 0) {
   928			dev_err(dev, "failed to enable GPADC interrupt\n");
   929			return ret;
   930		}
   931	
   932		ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, TWL6030_GPADCS,
   933						TWL6030_REG_TOGGLE1);
   934		if (ret < 0) {
   935			dev_err(dev, "failed to enable GPADC module\n");
   936			return ret;
   937		}
   938	
   939		ret = twl_i2c_write_u8(TWL_MODULE_USB, VBUS_MEAS, USB_VBUS_CTRL_SET);
   940		if (ret < 0) {
   941			dev_err(dev, "failed to wire up inputs\n");
   942			return ret;
   943		}
   944	
   945		ret = twl_i2c_write_u8(TWL_MODULE_USB, ID_MEAS, USB_ID_CTRL_SET);
   946		if (ret < 0) {
   947			dev_err(dev, "failed to wire up inputs\n");
   948			return ret;
   949		}
   950	
   951		ret = twl_i2c_write_u8(TWL6030_MODULE_ID0,
   952					VBAT_MEAS | BB_MEAS | VAC_MEAS,
   953					TWL6030_MISC1);
   954		if (ret < 0) {
   955			dev_err(dev, "failed to wire up inputs\n");
   956			return ret;
   957		}
   958	
   959		indio_dev->name = DRIVER_NAME;
   960		indio_dev->info = &twl6030_gpadc_iio_info;
   961		indio_dev->modes = INDIO_DIRECT_MODE;
   962		indio_dev->channels = pdata->iio_channels;
   963		indio_dev->num_channels = pdata->nchannels;
   964	
   965		return iio_device_register(indio_dev);
   966	}
   967	

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