Add descriptions for entries needed for audio device to use DMA channels for audio playback and capture.
Signed-off-by: Michael Sit Wei Hong michael.wei.hong.sit@intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- .../bindings/sound/intel,keembay-i2s.yaml | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml b/Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml index d346e61ab708..e0658f122cbb 100644 --- a/Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml +++ b/Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml @@ -45,6 +45,18 @@ properties: - const: osc - const: apb_clk
+ dmas: + items: + - description: DMA controller phandle and DMA channel + for TX and RX + + dma-names: + items: + - description: "tx" for the transmit channel + "rx" for the receive channel + - const: tx + - const: rx + required: - compatible - "#sound-dai-cells" @@ -70,4 +82,6 @@ examples: interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>; clock-names = "osc", "apb_clk"; clocks = <&scmi_clk KEEM_BAY_PSS_AUX_I2S3>, <&scmi_clk KEEM_BAY_PSS_I2S3>; + dmas = <&axi_dma0 29 &axi_dma0 33>; + dma-names = "tx", "rx"; };