Add device-tree binding documentation for the Tegra210 Audio DMA controller.
Signed-off-by: Jon Hunter <[email protected]> --- .../devicetree/bindings/dma/tegra210-adma.txt | 47 ++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/tegra210-adma.txt diff --git a/Documentation/devicetree/bindings/dma/tegra210-adma.txt b/Documentation/devicetree/bindings/dma/tegra210-adma.txt new file mode 100644 index 000000000000..af04b3c5a557 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/tegra210-adma.txt @@ -0,0 +1,47 @@ +* NVIDIA Tegra Audio DMA controller + +Required properties: +- compatible: Should be "nvidia,<chip>-adma" +- reg: Should contain DMA registers location and length. This should include + all of the per-channel registers. +- interrupt-parent: Phandle to the interrupt parent controller. +- interrupts: Should contain all of the per-channel DMA interrupts. +- clocks: Must contain two entries, one for the power-domain clock and one + for the module clock. See ../clocks/clock-bindings.txt for details. +- dma-channels: Number of DMA channels supported by the controller. +- #dma-cells : Must be <0>. + +Examples: + +adma: adma@702e2000 { + compatible = "nvidia,tegra210-adma"; + reg = <0x0 0x702e2000 0x0 0x2000>; + interrupt-parent = <&tegra_agic>; + interrupts = <GIC_SPI INT_ADMA_EOT0 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT1 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT2 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT3 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT4 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT5 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT6 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT7 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT8 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT9 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT10 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT11 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT12 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT13 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT14 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT15 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT16 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT17 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT18 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT19 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT20 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI INT_ADMA_EOT21 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&tegra_car TEGRA210_CLK_D_AUDIO>, + <&tegra_car TEGRA210_CLK_ADMA_APE>; + clock-names = "adma", "adma.ape"; + dma-channels = <22>; + #dma-cells = <0>; +}; -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
