diff options
| author | Guodong Xu <guodong@riscstar.com> | 2025-08-22 11:06:27 +0800 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2025-09-02 12:37:41 +0530 |
| commit | 39ce725e621b256188550492b4b53fb02bfc872e (patch) | |
| tree | d844ca1d86bd28181838e4b5788b7002b15e8a43 | |
| parent | d5df661c9c76cb36d90527349ac6197a4baf2aba (diff) | |
dt-bindings: dma: Add SpacemiT K1 PDMA controller
Add device tree binding documentation for the SpacemiT K1 PDMA
controller.
Signed-off-by: Guodong Xu <guodong@riscstar.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250822-working_dma_0701_v2-v5-1-f5c0eda734cc@riscstar.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/dma/spacemit,k1-pdma.yaml | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/spacemit,k1-pdma.yaml b/Documentation/devicetree/bindings/dma/spacemit,k1-pdma.yaml new file mode 100644 index 000000000000..ec06235baf5c --- /dev/null +++ b/Documentation/devicetree/bindings/dma/spacemit,k1-pdma.yaml @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/spacemit,k1-pdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SpacemiT K1 PDMA Controller + +maintainers: + - Guodong Xu <guodong@riscstar.com> + +allOf: + - $ref: dma-controller.yaml# + +properties: + compatible: + const: spacemit,k1-pdma + + reg: + maxItems: 1 + + interrupts: + description: Shared interrupt for all DMA channels + maxItems: 1 + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + + dma-channels: + maximum: 16 + + '#dma-cells': + const: 1 + description: + The DMA request number for the peripheral device. + +required: + - compatible + - reg + - interrupts + - clocks + - resets + - dma-channels + - '#dma-cells' + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/clock/spacemit,k1-syscon.h> + + soc { + #address-cells = <2>; + #size-cells = <2>; + + dma-controller@d4000000 { + compatible = "spacemit,k1-pdma"; + reg = <0x0 0xd4000000 0x0 0x4000>; + interrupts = <72>; + clocks = <&syscon_apmu CLK_DMA>; + resets = <&syscon_apmu RESET_DMA>; + dma-channels = <16>; + #dma-cells = <1>; + }; + }; |