From 8672e4b51adfc57150f3862b1665faff0acf1bad Mon Sep 17 00:00:00 2001 From: Vladimir Zapolskiy Date: Fri, 9 Jan 2026 09:50:32 +0200 Subject: [PATCH] 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 Link: https://patch.msgid.link/20260109075032.3287109-1-vz@mleia.com Signed-off-by: Mark Brown --- .../devicetree/bindings/spi/nxp,lpc3220-spi.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/nxp,lpc3220-spi.yaml b/Documentation/devicetree/bindings/spi/nxp,lpc3220-spi.yaml index d5f780912f21e..789e26e409279 100644 --- a/Documentation/devicetree/bindings/spi/nxp,lpc3220-spi.yaml +++ b/Documentation/devicetree/bindings/spi/nxp,lpc3220-spi.yaml @@ -20,6 +20,12 @@ properties: clocks: maxItems: 1 + dmas: + maxItems: 1 + + dma-names: + const: rx-tx + allOf: - $ref: spi-controller.yaml# @@ -38,6 +44,8 @@ examples: compatible = "nxp,lpc3220-spi"; reg = <0x20088000 0x1000>; clocks = <&clk LPC32XX_CLK_SPI1>; + dmas = <&dmamux 11 1 0>; + dma-names = "rx-tx"; #address-cells = <1>; #size-cells = <0>; }; -- 2.47.3