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spi: dt-bindings: nxp,lpc3220-spi: Add DMA specific properties

NXP LPC32xx SPI controllers supports DMA operations over rx-tx channel,
which is muxed with SSP SPI controller DMA.

For additional reference see Table 69 in NXP LPC32xx User Manual.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Link: https://patch.msgid.link/20260109075032.3287109-1-vz@mleia.com
Signed-off-by: Mark Brown <broonie@kernel.org>

authored by

Vladimir Zapolskiy and committed by
Mark Brown 8672e4b5 b6376dbe

+8
+8
Documentation/devicetree/bindings/spi/nxp,lpc3220-spi.yaml
··· 20 20 clocks: 21 21 maxItems: 1 22 22 23 + dmas: 24 + maxItems: 1 25 + 26 + dma-names: 27 + const: rx-tx 28 + 23 29 allOf: 24 30 - $ref: spi-controller.yaml# 25 31 ··· 44 38 compatible = "nxp,lpc3220-spi"; 45 39 reg = <0x20088000 0x1000>; 46 40 clocks = <&clk LPC32XX_CLK_SPI1>; 41 + dmas = <&dmamux 11 1 0>; 42 + dma-names = "rx-tx"; 47 43 #address-cells = <1>; 48 44 #size-cells = <0>; 49 45 };