The stm32-i2s binding inherits from the standard audio-graph-port schema for its 'port' subnode, audio-graph-port requires the use of the 'dai-format' property. The stm32mp151c-plyaqm dts file was using the non-standard name 'format'. Correct the property name to 'dai-format' to fix the dtbs_check validation error. Fixes: 9365fa46be358 ("ARM: dts: stm32: Add Plymovent AQM devicetree") Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@gmail.com> Link: https://lore.kernel.org/r/20250830225115.303663-1-jihed.chaibi.dev@gmail.com Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>