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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>
53 lines
881 B
YAML
53 lines
881 B
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/spi/nxp,lpc3220-spi.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: NXP LPC3220 SPI controller
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maintainers:
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- Frank Li <Frank.Li@nxp.com>
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properties:
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compatible:
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enum:
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- nxp,lpc3220-spi
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reg:
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maxItems: 1
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clocks:
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maxItems: 1
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dmas:
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maxItems: 1
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dma-names:
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const: rx-tx
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allOf:
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- $ref: spi-controller.yaml#
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unevaluatedProperties: false
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required:
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- compatible
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- reg
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- clocks
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examples:
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- |
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#include <dt-bindings/clock/lpc32xx-clock.h>
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spi@20088000 {
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compatible = "nxp,lpc3220-spi";
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reg = <0x20088000 0x1000>;
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clocks = <&clk LPC32XX_CLK_SPI1>;
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dmas = <&dmamux 11 1 0>;
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dma-names = "rx-tx";
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#address-cells = <1>;
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#size-cells = <0>;
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};
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