When a STM32 SPI instance offers I2S feature, two nodes are defined in STM32 SoC device tree to support both SPI and I2S. Merge SPI node and I2S nodes into a single node, to avoid hardware description duplication and compilation warnings. Changes in v2: - Squash some patches in the serie to avoid dtbs check warnings on intermediate compilation steps. Olivier Moysan (4): ASoC: dt-bindings: stm32: i2s: add audio-graph-card port ASoC: dt-bindings: stm32: i2s: allow additional properties. ASoC: dt-bindings: stm32: i2s: update example ARM: dts: stm32: merge spi and i2s nodes .../bindings/sound/st,stm32-i2s.yaml | 9 ++++- arch/arm/boot/dts/stm32mp151.dtsi | 39 ++----------------- arch/arm/boot/dts/stm32mp157c-ev1.dts | 2 +- .../arm/boot/dts/stm32mp15xx-dhcom-drc02.dtsi | 2 +- .../boot/dts/stm32mp15xx-dhcor-avenger96.dtsi | 2 +- arch/arm/boot/dts/stm32mp15xx-dkx.dtsi | 7 +++- 6 files changed, 18 insertions(+), 43 deletions(-) -- 2.17.1