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| author | Keguang Zhang <keguang.zhang@gmail.com> | 2024-08-09 18:30:58 +0800 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2024-08-29 22:47:24 +0530 |
| commit | 7ea270bb93e4ce165bb4f834c29c05e9815b6ca8 (patch) | |
| tree | 60993fcb0d9334f2bcb999d416891d81ed2cdec2 | |
| parent | 13113f750a4ae0b1770fa25dc94852977ebfb942 (diff) | |
dt-bindings: dma: Add Loongson-1 APB DMA
Add devicetree binding document for Loongson-1 APB DMA.
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Link: https://lore.kernel.org/r/20240809-loongson1-dma-v12-1-d9469a4a6b85@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/dma/loongson,ls1b-apbdma.yaml | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/loongson,ls1b-apbdma.yaml b/Documentation/devicetree/bindings/dma/loongson,ls1b-apbdma.yaml new file mode 100644 index 000000000000..4c7d2fb7b292 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/loongson,ls1b-apbdma.yaml @@ -0,0 +1,65 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/loongson,ls1b-apbdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Loongson-1 APB DMA Controller + +maintainers: + - Keguang Zhang <keguang.zhang@gmail.com> + +description: + Loongson-1 APB DMA controller provides 3 independent channels for + peripherals such as NAND, audio playback and capture. + +properties: + compatible: + oneOf: + - const: loongson,ls1b-apbdma + - items: + - enum: + - loongson,ls1a-apbdma + - loongson,ls1c-apbdma + - const: loongson,ls1b-apbdma + + reg: + maxItems: 1 + + interrupts: + items: + - description: NAND interrupt + - description: Audio playback interrupt + - description: Audio capture interrupt + + interrupt-names: + items: + - const: ch0 + - const: ch1 + - const: ch2 + + '#dma-cells': + const: 1 + +required: + - compatible + - reg + - interrupts + - interrupt-names + - '#dma-cells' + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + dma-controller@1fd01160 { + compatible = "loongson,ls1b-apbdma"; + reg = <0x1fd01160 0x4>; + interrupt-parent = <&intc0>; + interrupts = <13 IRQ_TYPE_EDGE_RISING>, + <14 IRQ_TYPE_EDGE_RISING>, + <15 IRQ_TYPE_EDGE_RISING>; + interrupt-names = "ch0", "ch1", "ch2"; + #dma-cells = <1>; + }; |