The reg property in the example caused following warnings: xinpeng,xpp055c272.example.dts:20.17-27: Warning (reg_format): /example-0/dsi@ff450000/panel@0:reg: property has invalid length (4 bytes) (#address-cells == 2, #size-cells == 1) xinpeng,xpp055c272.example.dt.yaml: Warning (pci_device_bus_num): Failed prerequisite 'reg_format' xinpeng,xpp055c272.example.dt.yaml: Warning (i2c_bus_reg): Failed prerequisite 'reg_format' xinpeng,xpp055c272.example.dt.yaml: Warning (spi_bus_reg): Failed prerequisite 'reg_format' xinpeng,xpp055c272.example.dts:18.21-24.15: Warning (avoid_default_addr_size): /example-0/dsi@ff450000/panel@0: Relying on default #address-cells value xinpeng,xpp055c272.example.dts:18.21-24.15: Warning (avoid_default_addr_size): /example-0/dsi@ff450000/panel@0: Relying on default #size-cells value Added #address-cells and #size-cells to silence the warning. Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx> Cc: Heiko Stuebner <heiko.stuebner@xxxxxxxxxxxxxxxxxxxxx> Cc: Maxime Ripard <mripard@xxxxxxxxxx> Cc: Rob Herring <robh@xxxxxxxxxx> Cc: devicetree@xxxxxxxxxxxxxxx --- I forgot to push this fixed while applying the patch. Sam .../devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml b/Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml index 378cf9e2549d..186e5e1c8fa3 100644 --- a/Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml +++ b/Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml @@ -35,6 +35,8 @@ additionalProperties: false examples: - | dsi@ff450000 { + #address-cells = <1>; + #size-cells = <0>; panel@0 { compatible = "xinpeng,xpp055c272"; reg = <0>; -- 2.20.1