I was able to reproduce the error after following the instructions. I 
will include the fix with next version of this patch set.

Thanks,

Lizhi

On 11/18/21 2:09 PM, Rob Herring wrote

On Thu, 18 Nov 2021 13:03:16 -0800, Lizhi Hou wrote:

quoted

Create device tree binding document for xrt group device.

Signed-off-by: Sonal Santan <redacted>
Signed-off-by: Max Zhen <redacted>
Signed-off-by: Lizhi Hou <redacted>
---
  .../bindings/xrt/xlnx,xrt-group.yaml          | 59 +++++++++++++++++++
  1 file changed, 59 insertions(+)
  create mode 100644 Documentation/devicetree/bindings/xrt/xlnx,xrt-group.yaml

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:
./Documentation/devicetree/bindings/xrt/xlnx,xrt-group.yaml:22:6: [warning] wrong indentation: expected 4 but found 5 (indentation)
./Documentation/devicetree/bindings/xrt/xlnx,xrt-group.yaml:25:6: [warning] wrong indentation: expected 4 but found 5 (indentation)

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/xrt/xlnx,xrt-group.example.dt.yaml:0:0: /example-0/xrt-bus/xrt-group@48,0/ep_fpga_configuration_00@0,0,1e88000: failed to match any schema with compatible: ['xilinx.com,reg_abs-axi_hwicap-1.0', 'axi_hwicap']
Documentation/devicetree/bindings/xrt/xlnx,xrt-group.example.dt.yaml:0:0: /example-0/xrt-bus/xrt-group@48,0/ep_fpga_configuration_00@0,0,1e88000: failed to match any schema with compatible: ['xilinx.com,reg_abs-axi_hwicap-1.0', 'axi_hwicap']

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/1556809

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.