[hverkuil-media-tree:hdmi-dbg 4/29] dtbs_check: Documentation/devicetree/bindings/iio/adc/ti,ads7128.yaml:42:1: [error] syntax error: found character '\t' that cannot start any token (syntax)

[hverkuil-media-tree:hdmi-dbg 4/29] dtbs_check: Documentation/devicetree/bindings/iio/adc/ti,ads7128.yaml:42:1: [error] syntax error: found character '\t' that cannot start any token (syntax)

[kernel test robot]

tree:   git://linuxtv.org/hverkuil/media_tree.git hdmi-dbg
head:   d344bfea2a3086931de23669e9fe7a73cf373bb3
commit: 3ccffba164ef0246aff8f810e17c9756c598c170 [4/29] ti-ads7128: driver for the TI ADS7128 ADC
compiler: loongarch64-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231017/202310170730.d2FwYaBp-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310170730.d2FwYaBp-lkp@intel.com/

dtcheck warnings: (new ones prefixed by >>)
>> Documentation/devicetree/bindings/iio/adc/ti,ads7128.yaml:42:1: [error] syntax error: found character '\t' that cannot start any token (syntax)
--
>> Documentation/devicetree/bindings/iio/adc/ti,ads7128.yaml:42:1: found a tab character where an indentation space is expected
--
>> Documentation/devicetree/bindings/iio/adc/ti,ads7128.yaml: ignoring, error parsing file

vim +42 Documentation/devicetree/bindings/iio/adc/ti,ads7128.yaml

    32	
    33	examples:
    34	  - |
    35	    i2c {
    36	        #address-cells = <1>;
    37	        #size-cells = <0>;
    38	
    39	        adc@17 {
    40	            compatible = "ti,ads7128";
    41	            reg = <0x17>;
  > 42		    vref-supply = <&vref_5v0_reg>;

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