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charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 075dbe9f6e3c21596c5245826a4ee1f1c1676eb8 commit: 6ddb86d93cc08c00eccc1a14980f7260e4fbe2bc iio: pressure: Add driver for Sensirion SDP500 date: 8 weeks ago config: sh-randconfig-r054-20240801 (https://download.01.org/0day-ci/archive/20240927/202409271341.0dhpXk7G-lkp@intel.com/config) compiler: sh4-linux-gcc (GCC) 13.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240927/202409271341.0dhpXk7G-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202409271341.0dhpXk7G-lkp@intel.com/ All errors (new ones prefixed by >>): sh4-linux-ld: drivers/iio/pressure/sdp500.o: in function `sdp500_probe': >> drivers/iio/pressure/sdp500.c:130:(.text+0xe8): undefined reference to `crc8_populate_msb' sh4-linux-ld: drivers/iio/pressure/sdp500.o: in function `sdp500_read_raw': >> drivers/iio/pressure/sdp500.c:74:(.text+0x200): undefined reference to `crc8' vim +130 drivers/iio/pressure/sdp500.c 40 41 static int sdp500_read_raw(struct iio_dev *indio_dev, 42 struct iio_chan_spec const *chan, 43 int *val, int *val2, long mask) 44 { 45 int ret; 46 u8 rxbuf[SDP500_READ_SIZE]; 47 u8 received_crc, calculated_crc; 48 struct sdp500_data *data = iio_priv(indio_dev); 49 struct i2c_client *client = to_i2c_client(data->dev); 50 51 switch (mask) { 52 case IIO_CHAN_INFO_RAW: 53 ret = i2c_master_recv(client, rxbuf, SDP500_READ_SIZE); 54 if (ret < 0) { 55 dev_err(data->dev, "Failed to receive data"); 56 return ret; 57 } 58 if (ret != SDP500_READ_SIZE) { 59 dev_err(data->dev, "Data is received wrongly"); 60 return -EIO; 61 } 62 63 received_crc = rxbuf[2]; 64 calculated_crc = crc8(sdp500_crc8_table, rxbuf, 65 sizeof(rxbuf) - 1, 0x00); 66 if (received_crc != calculated_crc) { 67 dev_err(data->dev, 68 "calculated crc = 0x%.2X, received 0x%.2X", 69 calculated_crc, received_crc); 70 return -EIO; 71 } 72 73 *val = get_unaligned_be16(rxbuf); > 74 return IIO_VAL_INT; 75 case IIO_CHAN_INFO_SCALE: 76 *val = 1; 77 *val2 = 60; 78 79 return IIO_VAL_FRACTIONAL; 80 default: 81 return -EINVAL; 82 } 83 } 84 85 static const struct iio_info sdp500_info = { 86 .read_raw = &sdp500_read_raw, 87 }; 88 89 static int sdp500_probe(struct i2c_client *client) 90 { 91 struct iio_dev *indio_dev; 92 struct sdp500_data *data; 93 struct device *dev = &client->dev; 94 int ret; 95 u8 rxbuf[SDP500_READ_SIZE]; 96 97 ret = devm_regulator_get_enable(dev, "vdd"); 98 if (ret) 99 return dev_err_probe(dev, ret, 100 "Failed to get and enable regulator\n"); 101 102 indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); 103 if (!indio_dev) 104 return -ENOMEM; 105 106 /* has to be done before the first i2c communication */ 107 crc8_populate_msb(sdp500_crc8_table, SDP500_CRC8_POLYNOMIAL); 108 109 data = iio_priv(indio_dev); 110 data->dev = dev; 111 112 indio_dev->name = "sdp500"; 113 indio_dev->channels = sdp500_channels; 114 indio_dev->info = &sdp500_info; 115 indio_dev->modes = INDIO_DIRECT_MODE; 116 indio_dev->num_channels = ARRAY_SIZE(sdp500_channels); 117 118 ret = sdp500_start_measurement(data); 119 if (ret) 120 return dev_err_probe(dev, ret, "Failed to start measurement"); 121 122 /* First measurement is not correct, read it out to get rid of it */ 123 i2c_master_recv(client, rxbuf, SDP500_READ_SIZE); 124 125 ret = devm_iio_device_register(dev, indio_dev); 126 if (ret) 127 return dev_err_probe(dev, ret, "Failed to register indio_dev"); 128 129 return 0; > 130 } 131 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki