DTC is generating warnings about missing port like: DTOVL arch/arm/dts/zynqmp-smk-k24-revA-sck-kv-g-revB.dtb arch/arm/dts/zynqmp-sck-kv-g-revA.dtbo: Warning (graph_port): /fragment@5/__overlay__: graph port node name should be 'port' ... That's why change description and add it directly to dpsub mode to contain full description with also port. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/576630cc9696e21bef15bd1f0ca35e396adc4eca.1758529693.git.michal.simek@amd.com