diff options
| author | Mohan Kumar D <mkumard@nvidia.com> | 2024-12-17 10:43:57 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2024-12-24 13:04:04 +0300 |
| commit | 762b37fc6ae2af0c7ddf36556fe7427575e9c759 (patch) | |
| tree | d9f4339f1a3fc11b84d6b5b6b0d00c8927ad83ce | |
| parent | d0301fdbb50dfc99215b0f999d4ff7ab0a7675d9 (diff) | |
| download | linux-762b37fc6ae2af0c7ddf36556fe7427575e9c759.tar.xz | |
dt-bindings: dma: Support channel page to nvidia,tegra210-adma
Multiple ADMA Channel page hardware support has been added from
TEGRA186 and onwards. Update the DT binding to use any of the
ADMA channel page address space region.
Signed-off-by: Mohan Kumar D <mkumard@nvidia.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20241217074358.340180-2-mkumard@nvidia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml | 60 |
1 files changed, 56 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml b/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml index 877147e95ecc..d3f8c269916c 100644 --- a/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml +++ b/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml @@ -13,9 +13,6 @@ description: | maintainers: - Jon Hunter <jonathanh@nvidia.com> -allOf: - - $ref: dma-controller.yaml# - properties: compatible: oneOf: @@ -29,7 +26,19 @@ properties: - const: nvidia,tegra186-adma reg: - maxItems: 1 + description: + The 'page' region describes the address space of the page + used for accessing the DMA channel registers. The 'global' + region describes the address space of the global DMA registers. + In the absence of the 'reg-names' property, there must be a + single entry that covers the address space of the global DMA + registers and the DMA channel registers. + minItems: 1 + maxItems: 2 + + reg-names: + minItems: 1 + maxItems: 2 interrupts: description: | @@ -63,6 +72,49 @@ required: - clocks - clock-names +allOf: + - $ref: dma-controller.yaml# + - if: + properties: + compatible: + contains: + enum: + - nvidia,tegra210-adma + then: + properties: + reg: + items: + - description: Full address space range of DMA registers. + + - if: + properties: + compatible: + contains: + enum: + - nvidia,tegra186-adma + then: + anyOf: + - properties: + reg: + items: + - description: Full address space range of DMA registers. + - properties: + reg: + items: + - description: Channel Page address space range of DMA registers. + reg-names: + items: + - const: page + - properties: + reg: + items: + - description: Channel Page address space range of DMA registers. + - description: Global Page address space range of DMA registers. + reg-names: + items: + - const: page + - const: global + additionalProperties: false examples: |