Re: [PATCH v2 2/2] iio: adc: Add TI ADS1100 and ADS1000

[kernel test robot <lkp@xxxxxxxxx>]

Hi Mike,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on v6.2]
[cannot apply to jic23-iio/togreg linus/master next-20230227]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Mike-Looijmans/iio-adc-Add-TI-ADS1100-and-ADS1000/20230227-213529
patch link:    https://lore.kernel.org/r/20230227133255.32301-2-mike.looijmans%40topic.nl
patch subject: [PATCH v2 2/2] iio: adc: Add TI ADS1100 and ADS1000
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20230227/202302272311.tpyMXtCV-lkp@xxxxxxxxx/config)
compiler: sh4-linux-gcc (GCC) 12.1.0
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
        # https://github.com/intel-lab-lkp/linux/commit/8bc0b6e697641a7c6274a492bf210faccdeb55bf
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Mike-Looijmans/iio-adc-Add-TI-ADS1100-and-ADS1000/20230227-213529
        git checkout 8bc0b6e697641a7c6274a492bf210faccdeb55bf
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sh olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash drivers/iio/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202302272311.tpyMXtCV-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   drivers/iio/adc/ti-ads1100.c: In function 'ads1100_data_bits':
>> drivers/iio/adc/ti-ads1100.c:87:39: error: implicit declaration of function 'FIELD_GET'; did you mean 'FOLL_GET'? [-Werror=implicit-function-declaration]
      87 |         return ads1100_data_rate_bits[FIELD_GET(ADS1100_DR_MASK, data->config)];
         |                                       ^~~~~~~~~
         |                                       FOLL_GET
   drivers/iio/adc/ti-ads1100.c: In function 'ads1100_set_data_rate':
>> drivers/iio/adc/ti-ads1100.c:156:41: error: implicit declaration of function 'FIELD_PREP' [-Werror=implicit-function-declaration]
     156 |                                         FIELD_PREP(ADS1100_DR_MASK, i));
         |                                         ^~~~~~~~~~
   cc1: some warnings being treated as errors


vim +87 drivers/iio/adc/ti-ads1100.c

    84	
    85	static int ads1100_data_bits(struct ads1100_data *data)
    86	{
  > 87		return ads1100_data_rate_bits[FIELD_GET(ADS1100_DR_MASK, data->config)];
    88	}
    89	
    90	static int ads1100_get_adc_result(struct ads1100_data *data, int chan, int *val)
    91	{
    92		int ret;
    93		__be16 buffer;
    94		s16 value;
    95	
    96		if (chan != 0)
    97			return -EINVAL;
    98	
    99		ret = pm_runtime_resume_and_get(&data->client->dev);
   100		if (ret < 0)
   101			return ret;
   102	
   103		ret = i2c_master_recv(data->client, (char *)&buffer, sizeof(buffer));
   104	
   105		pm_runtime_mark_last_busy(&data->client->dev);
   106		pm_runtime_put_autosuspend(&data->client->dev);
   107	
   108		if (ret < 0) {
   109			dev_err(&data->client->dev, "I2C read fail: %d\n", ret);
   110			return ret;
   111		}
   112	
   113		/* Value is always 16-bit 2's complement */
   114		value = be16_to_cpu(buffer);
   115		/* Shift result to compensate for bit resolution vs. sample rate */
   116		value <<= 16 - ads1100_data_bits(data);
   117		*val = sign_extend32(value, 15);
   118	
   119		return 0;
   120	}
   121	
   122	static int ads1100_set_scale(struct ads1100_data *data, int val, int val2)
   123	{
   124		int microvolts;
   125		int gain;
   126		int i;
   127	
   128		/* With Vdd between 2.7 and 5V, the scale is always below 1 */
   129		if (val)
   130			return -EINVAL;
   131	
   132		microvolts = regulator_get_voltage(data->reg_vdd);
   133		/* Calculate: gain = ((microvolts / 1000) / (val2 / 1000000)) >> 15 */
   134		gain = ((microvolts + BIT(14)) >> 15) * 1000 / val2;
   135	
   136		for (i = 0; i < 4; i++) {
   137			if (BIT(i) == gain) {
   138				ads1100_set_config_bits(data, ADS1100_PGA_MASK, i);
   139				return 0;
   140			}
   141		}
   142	
   143		return -EINVAL;
   144	}
   145	
   146	static int ads1100_set_data_rate(struct ads1100_data *data, int chan, int rate)
   147	{
   148		unsigned int i;
   149		unsigned int size;
   150	
   151		size = data->supports_data_rate ? ARRAY_SIZE(ads1100_data_rate) : 1;
   152		for (i = 0; i < size; ++i) {
   153			if (ads1100_data_rate[i] == rate) {
   154				return ads1100_set_config_bits(
   155						data, ADS1100_DR_MASK,
 > 156						FIELD_PREP(ADS1100_DR_MASK, i));
   157			}
   158		}
   159	
   160		return -EINVAL;
   161	}
   162	

-- 
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https://github.com/intel/lkp-tests