Commit 06d53632 authored by David Lechner's avatar David Lechner Committed by Vinod Koul
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dt-bindings: dma: adi,axi-dmac: deprecate adi,channels node 



Deprecate the adi,channels node in the adi,axi-dmac binding. Prior to
IP version 4.3.a, this information was required. Since then, there are
memory-mapped registers that can be read to get the same information.

Acked-by: default avatarNuno Sa <nuno.sa@analog.com>
Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Signed-off-by: default avatarDavid Lechner <dlechner@baylibre.com>
Link: https://lore.kernel.org/r/20241216-axi-dma-dt-yaml-v3-2-7b994710c43f@baylibre.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 788726fc

Documentation/devicetree/bindings/dma/adi,axi-dmac.yaml

+5 −15
Original line number Diff line number Diff line
@@ -33,8 +33,12 @@ properties: 
    const: 1



  adi,channels:

    deprecated: true

    type: object

    description: This sub-node must contain a sub-node for each DMA channel.

    description:

      This sub-node must contain a sub-node for each DMA channel. This node is

      only required for IP versions older than 4.3.a and should otherwise be

      omitted.

    additionalProperties: false



    properties:
@@ -113,7 +117,6 @@ required: 
  - interrupts

  - clocks

  - "#dma-cells"

  - adi,channels



examples:

  - |
@@ -123,17 +126,4 @@ examples: 
        interrupts = <0 57 0>;

        clocks = <&clkc 16>;

        #dma-cells = <1>;



        adi,channels {

            #size-cells = <0>;

            #address-cells = <1>;



            dma-channel@0 {

                reg = <0>;

                adi,source-bus-width = <32>;

                adi,source-bus-type = <0>; /* Memory mapped */

                adi,destination-bus-width = <64>;

                adi,destination-bus-type = <2>; /* FIFO */

            };

        };

    };