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author | Sameer Pujar <spujar@nvidia.com> | 2020-11-06 21:13:31 +0530 |
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committer | Thierry Reding <treding@nvidia.com> | 2020-11-26 19:05:17 +0100 |
commit | 15f76096fabba229476b01c7890f3c3ff843cc11 (patch) | |
tree | 558c986971d8ce7d8268ffd405c90e1a6155102f /Documentation | |
parent | 3394f98435b598e23cbe8d33f7b9e995535dd721 (diff) | |
download | linux-15f76096fabba229476b01c7890f3c3ff843cc11.tar.bz2 |
dt-bindings: dma: Convert ADMA doc to json-schema
Move ADMA documentation to YAML format.
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.txt | 56 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml | 99 |
2 files changed, 99 insertions, 56 deletions
diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.txt b/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.txt deleted file mode 100644 index 245d3063715c..000000000000 --- a/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.txt +++ /dev/null @@ -1,56 +0,0 @@ -* NVIDIA Tegra Audio DMA (ADMA) controller - -The Tegra Audio DMA controller that is used for transferring data -between system memory and the Audio Processing Engine (APE). - -Required properties: -- compatible: Should contain one of the following: - - "nvidia,tegra210-adma": for Tegra210 - - "nvidia,tegra186-adma": for Tegra186 and Tegra194 -- reg: Should contain DMA registers location and length. This should be - a single entry that includes all of the per-channel registers in one - contiguous bank. -- interrupts: Should contain all of the per-channel DMA interrupts in - ascending order with respect to the DMA channel index. -- clocks: Must contain one entry for the ADMA module clock - (TEGRA210_CLK_D_AUDIO). -- clock-names: Must contain the name "d_audio" for the corresponding - 'clocks' entry. -- #dma-cells : Must be 1. The first cell denotes the receive/transmit - request number and should be between 1 and the maximum number of - requests supported. This value corresponds to the RX/TX_REQUEST_SELECT - fields in the ADMA_CHn_CTRL register. - - -Example: - -adma: dma@702e2000 { - compatible = "nvidia,tegra210-adma"; - reg = <0x0 0x702e2000 0x0 0x2000>; - interrupt-parent = <&tegra_agic>; - interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&tegra_car TEGRA210_CLK_D_AUDIO>; - clock-names = "d_audio"; - #dma-cells = <1>; -}; diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml b/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml new file mode 100644 index 000000000000..5c2e2f156e31 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml @@ -0,0 +1,99 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/nvidia,tegra210-adma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NVIDIA Tegra Audio DMA (ADMA) controller + +description: | + The Tegra Audio DMA controller is used for transferring data + between system memory and the Audio Processing Engine (APE). + +maintainers: + - Jon Hunter <jonathanh@nvidia.com> + +allOf: + - $ref: "dma-controller.yaml#" + +properties: + compatible: + oneOf: + - enum: + - nvidia,tegra210-adma + - nvidia,tegra186-adma + - items: + - const: nvidia,tegra194-adma + - const: nvidia,tegra186-adma + + reg: + maxItems: 1 + + interrupts: + description: | + Should contain all of the per-channel DMA interrupts in + ascending order with respect to the DMA channel index. + minItems: 1 + maxItems: 32 + + clocks: + description: Must contain one entry for the ADMA module clock + maxItems: 1 + + clock-names: + const: d_audio + + "#dma-cells": + description: | + The first cell denotes the receive/transmit request number and + should be between 1 and the maximum number of requests supported. + This value corresponds to the RX/TX_REQUEST_SELECT fields in the + ADMA_CHn_CTRL register. + const: 1 + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include<dt-bindings/clock/tegra210-car.h> + + dma-controller@702e2000 { + compatible = "nvidia,tegra210-adma"; + reg = <0x702e2000 0x2000>; + interrupt-parent = <&tegra_agic>; + interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&tegra_car TEGRA210_CLK_D_AUDIO>; + clock-names = "d_audio"; + #dma-cells = <1>; + }; + +... |