Hi Dumitru, kernel test robot noticed the following build warnings: [auto build test WARNING on jic23-iio/togreg] [also build test WARNING on linus/master v6.7-rc5 next-20231215] [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/Dumitru-Ceclan/iio-adc-ad7173-add-AD7173-driver/20231215-213722 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg patch link: https://lore.kernel.org/r/20231215133512.28735-1-mitrutzceclan%40gmail.com patch subject: [PATCH v9 1/2] dt-bindings: adc: add AD7173 compiler: loongarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20231216/202312161107.L0HDURj1-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202312161107.L0HDURj1-lkp@xxxxxxxxx/ dtcheck warnings: (new ones prefixed by >>) >> Documentation/devicetree/bindings/iio/adc/adi,ad7173.yaml: patternProperties:^channel@[0-9a-f]$:properties:adi,reference-select:type: 'string' is not one of ['boolean', 'object'] from schema $id: http://devicetree.org/meta-schemas/core.yaml# >> Documentation/devicetree/bindings/iio/adc/adi,ad7173.yaml: patternProperties:^channel@[0-9a-f]$:properties:adi,reference-select:type: 'boolean' was expected hint: A vendor boolean property can use "type: boolean" from schema $id: http://devicetree.org/meta-schemas/vendor-props.yaml# -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki