forked from Minki/linux
87c9c45110
Current dmas explanation of SRC/DRS is confusable. This patch clarifies it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
30 lines
698 B
Plaintext
30 lines
698 B
Plaintext
* R-Car Audio DMAC peri peri Device Tree bindings
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Required properties:
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- compatible: should be "renesas,rcar-audmapp"
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- #dma-cells: should be <1>, see "dmas" property below
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Example:
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audmapp: audio-dma-pp@0xec740000 {
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compatible = "renesas,rcar-audmapp";
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#dma-cells = <1>;
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reg = <0 0xec740000 0 0x200>;
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};
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* DMA client
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Required properties:
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- dmas: a list of <[DMA multiplexer phandle] [SRS << 8 | DRS]> pairs.
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where SRS/DRS are specified in the SoC manual.
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It will be written into PDMACHCR as high 16-bit parts.
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- dma-names: a list of DMA channel names, one per "dmas" entry
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Example:
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dmas = <&audmapp 0x2d00
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&audmapp 0x3700>;
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dma-names = "src0_ssiu0",
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"dvc0_ssiu0";
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