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Diffstat (limited to 'Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml b/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml new file mode 100644 index 0000000000..2128f4645c --- /dev/null +++ b/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml @@ -0,0 +1,74 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/xilinx/xlnx,zynqmp-dpdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Xilinx ZynqMP DisplayPort DMA Controller + +description: | + These bindings describe the DMA engine included in the Xilinx ZynqMP + DisplayPort Subsystem. The DMA engine supports up to 6 DMA channels (3 + channels for a video stream, 1 channel for a graphics stream, and 2 channels + for an audio stream). + +maintainers: + - Laurent Pinchart <laurent.pinchart@ideasonboard.com> + +allOf: + - $ref: ../dma-controller.yaml# + +properties: + "#dma-cells": + const: 1 + description: | + The cell is the DMA channel ID (see dt-bindings/dma/xlnx-zynqmp-dpdma.h + for a list of channel IDs). + + compatible: + const: xlnx,zynqmp-dpdma + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + description: The AXI clock + maxItems: 1 + + clock-names: + const: axi_clk + + power-domains: + maxItems: 1 + +required: + - "#dma-cells" + - compatible + - reg + - interrupts + - clocks + - clock-names + - power-domains + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/power/xlnx-zynqmp-power.h> + + dma: dma-controller@fd4c0000 { + compatible = "xlnx,zynqmp-dpdma"; + reg = <0xfd4c0000 0x1000>; + interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>; + interrupt-parent = <&gic>; + clocks = <&dpdma_clk>; + clock-names = "axi_clk"; + #dma-cells = <1>; + power-domains = <&zynqmp_firmware PD_DP>; + }; + +... |