[PATCH v3 7/9] iio: adc: sun20i-gpadc: Use adc-helpers

[kernel test robot]

Hi Matti,

kernel test robot noticed the following build errors:

[auto build test ERROR on 5bc55a333a2f7316b58edc7573e8e893f7acb532]

url:    https://github.com/intel-lab-lkp/linux/commits/Matti-Vaittinen/dt-bindings-ROHM-BD79124-ADC-GPO/20250219-203748
base:   5bc55a333a2f7316b58edc7573e8e893f7acb532
patch link:    https://lore.kernel.org/r/21b9af362b64a1d9c2a13cc46242dd6955996c46.1739967040.git.mazziesaccount%40gmail.com
patch subject: [PATCH v3 7/9] iio: adc: sun20i-gpadc: Use adc-helpers
config: i386-buildonly-randconfig-002-20250220 (https://download.01.org/0day-ci/archive/20250221/202502210037.162FN3PM-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250221/202502210037.162FN3PM-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202502210037.162FN3PM-lkp@intel.com/

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "devm_iio_adc_device_alloc_chaninfo" [drivers/iio/adc/sun20i-gpadc-iio.ko] undefined!

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