Lines Matching +full:reserved +full:- +full:channels

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Paul Cercueil <paul@crapouillou.net>
13   - $ref: dma-controller.yaml#
18       - enum:
19           - ingenic,jz4740-dma
20           - ingenic,jz4725b-dma
21           - ingenic,jz4755-dma
22           - ingenic,jz4760-dma
23           - ingenic,jz4760-bdma
24           - ingenic,jz4760-mdma
25           - ingenic,jz4760b-dma
26           - ingenic,jz4760b-bdma
27           - ingenic,jz4760b-mdma
28           - ingenic,jz4770-dma
29           - ingenic,jz4780-dma
30           - ingenic,x1000-dma
31           - ingenic,x1830-dma
32       - items:
33           - const: ingenic,jz4770-bdma
34           - const: ingenic,jz4760b-bdma
38       - description: Channel-specific registers
39       - description: System control registers
47   "#dma-cells":
53       - Request type: The DMA request type specifies the device endpoint that
55         If "#dma-cells" is 2, the request type is a single cell, and the
57         If "#dma-cells" is 3, the request type has two cells; the first
62       - Channel: If set to 0xffffffff, any available channel will be allocated
64         The channel should be reserved on the DMA controller using the
65         ingenic,reserved-channels property.
67   ingenic,reserved-channels:
70       Bitmask of channels to reserve for devices that need a specific
71       channel. These channels will only be assigned when explicitly
72       requested by a client. The primary use for this is channels 0 and
77   - compatible
78   - reg
79   - interrupts
80   - clocks
85   - |
86     #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
87     dma: dma-controller@13420000 {
88       compatible = "ingenic,jz4780-dma";
91       interrupt-parent = <&intc>;
96       #dma-cells = <2>;
98       ingenic,reserved-channels = <0x3>;