Hi Shawn, After merging the imx-mxs tree, today's linux-next build (arm multi_v7_defconfig) produced this warning: arch/arm/boot/dts/imx6dl-aristainetos_7.dtb: Warning (reg_format): /soc/ipu@2400000/port@2/endpoint@0:reg: property has invalid length (4 bytes) (#address-cells == 2, #size-cells == 1) arch/arm/boot/dts/imx6dl-aristainetos_7.dtb: Warning (pci_device_bus_num): Failed prerequisite 'reg_format' arch/arm/boot/dts/imx6dl-aristainetos_7.dtb: Warning (simple_bus_reg): Failed prerequisite 'reg_format' arch/arm/boot/dts/imx6dl-aristainetos_7.dtb: Warning (avoid_default_addr_size): /soc/ipu@2400000/port@2/endpoint@0: Relying on default #address-cells value and about 7000 more lines across several files ... It is hard tell what introduced these warnings ... -- Cheers, Stephen Rothwell