Hi Kim, kernel test robot noticed the following build warnings: [auto build test WARNING on 98b1cc82c4affc16f5598d4fa14b1858671b2263] url: https://github.com/intel-lab-lkp/linux/commits/Kim-Seer-Paller/iio-frequency-admfm2000-New-driver/20231121-180427 base: 98b1cc82c4affc16f5598d4fa14b1858671b2263 patch link: https://lore.kernel.org/r/20231121100012.112861-1-kimseer.paller%40analog.com patch subject: [PATCH v2 1/2] dt-bindings: iio: frequency: add admfm2000 compiler: loongarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20231122/202311220624.J7Nqg5h1-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/202311220624.J7Nqg5h1-lkp@xxxxxxxxx/ dtcheck warnings: (new ones prefixed by >>) >> Documentation/devicetree/bindings/iio/frequency/adi,admfm2000.yaml:14:5: [warning] wrong indentation: expected 2 but found 4 (indentation) vim +14 Documentation/devicetree/bindings/iio/frequency/adi,admfm2000.yaml 9 10 maintainers: 11 - Kim Seer Paller <kimseer.paller@xxxxxxxxxx> 12 13 description: > 14 Dual microwave down converter module with input RF and LO frequency ranges 15 from 0.5 to 32 GHz and an output IF frequency range from 0.1 to 8 GHz. 16 It consists of a LNA, mixer, IF filter, DSA, and IF amplifier for each down 17 conversion path. 18 19 properties: 20 compatible: 21 enum: 22 - adi,admfm2000 23 24 switch1-gpios: 25 description: 26 Must contain an array of 2 GPIO specifiers, referring to the GPIO pins 27 connected to the B15 and B16. 28 minItems: 2 29 maxItems: 2 30 31 switch2-gpios: 32 description: 33 Must contain an array of 2 GPIO specifiers, referring to the GPIO pins 34 connected to the L14 and K14. 35 minItems: 2 36 maxItems: 2 37 38 attenuation1-gpios: 39 description: 40 Must contain an array of 5 GPIO specifiers, referring to the GPIO pins 41 connected to the C14, C15, C16, D14, and D15. 42 minItems: 5 43 maxItems: 5 44 45 attenuation2-gpios: 46 description: 47 Must contain an array of 5 GPIO specifiers, referring to the GPIO pins 48 connected to the L15, L16, M14, M15, and M16. 49 minItems: 5 50 maxItems: 5 51 52 '#address-cells': 53 const: 1 54 55 '#size-cells': 56 const: 0 57 58 patternProperties: 59 "^channel@[0-1]$": 60 type: object 61 description: Represents a channel of the device. 62 63 additionalProperties: false 64 65 properties: 66 reg: 67 description: 68 The channel number. 69 minimum: 0 70 maximum: 1 71 72 adi,mode: 73 description: 74 RF path selected for the channel. 75 0 - Direct IF mode 76 1 - Mixer mode 77 $ref: /schemas/types.yaml#/definitions/uint32 78 enum: [0, 1] 79 80 required: 81 - reg 82 - adi,mode 83 84 required: 85 - compatible 86 - switch1-gpios 87 - switch2-gpios 88 - attenuation1-gpios 89 - attenuation2-gpios 90 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki