1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/dma/qcom,gp 4 $id: http://devicetree.org/schemas/dma/qcom,gpi.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Qualcomm Technologies Inc GPI DMA contr 7 title: Qualcomm Technologies Inc GPI DMA controller
8 8
9 maintainers: 9 maintainers:
10 - Vinod Koul <vkoul@kernel.org> 10 - Vinod Koul <vkoul@kernel.org>
11 11
12 description: | 12 description: |
13 QCOM GPI DMA controller provides DMA capabil 13 QCOM GPI DMA controller provides DMA capabilities for
14 peripheral buses such as I2C, UART, and SPI. 14 peripheral buses such as I2C, UART, and SPI.
15 15
16 allOf: 16 allOf:
17 - $ref: dma-controller.yaml# !! 17 - $ref: "dma-controller.yaml#"
18 18
19 properties: 19 properties:
20 compatible: 20 compatible:
21 oneOf: !! 21 enum:
22 - enum: !! 22 - qcom,sc7280-gpi-dma
23 - qcom,sdm845-gpi-dma !! 23 - qcom,sdm845-gpi-dma
24 - qcom,sm6350-gpi-dma !! 24 - qcom,sm6350-gpi-dma
25 - items: !! 25 - qcom,sm8150-gpi-dma
26 - enum: !! 26 - qcom,sm8250-gpi-dma
27 - qcom,qcm2290-gpi-dma !! 27 - qcom,sm8350-gpi-dma
28 - qcom,qdu1000-gpi-dma !! 28 - qcom,sm8450-gpi-dma
29 - qcom,sc7280-gpi-dma <<
30 - qcom,sdx75-gpi-dma <<
31 - qcom,sm6115-gpi-dma <<
32 - qcom,sm6375-gpi-dma <<
33 - qcom,sm8350-gpi-dma <<
34 - qcom,sm8450-gpi-dma <<
35 - qcom,sm8550-gpi-dma <<
36 - qcom,sm8650-gpi-dma <<
37 - qcom,x1e80100-gpi-dma <<
38 - const: qcom,sm6350-gpi-dma <<
39 - items: <<
40 - enum: <<
41 - qcom,sdm670-gpi-dma <<
42 - qcom,sm6125-gpi-dma <<
43 - qcom,sm8150-gpi-dma <<
44 - qcom,sm8250-gpi-dma <<
45 - const: qcom,sdm845-gpi-dma <<
46 29
47 reg: 30 reg:
48 maxItems: 1 31 maxItems: 1
49 32
50 interrupts: 33 interrupts:
51 description: 34 description:
52 Interrupt lines for each GPI instance 35 Interrupt lines for each GPI instance
53 minItems: 1 36 minItems: 1
54 maxItems: 13 37 maxItems: 13
55 38
56 "#dma-cells": 39 "#dma-cells":
57 const: 3 40 const: 3
58 description: > 41 description: >
59 DMA clients must use the format describe 42 DMA clients must use the format described in dma.txt, giving a phandle
60 to the DMA controller plus the following 43 to the DMA controller plus the following 3 integer cells:
61 - channel: if set to 0xffffffff, any ava 44 - channel: if set to 0xffffffff, any available channel will be allocated
62 for the client. Otherwise, the exact c 45 for the client. Otherwise, the exact channel specified will be used.
63 - seid: serial id of the client as defin 46 - seid: serial id of the client as defined in the SoC documentation.
64 - client: type of the client as defined 47 - client: type of the client as defined in dt-bindings/dma/qcom-gpi.h
65 48
66 iommus: 49 iommus:
67 maxItems: 1 50 maxItems: 1
68 51
69 dma-channels: 52 dma-channels:
70 maximum: 31 53 maximum: 31
71 54
72 dma-channel-mask: 55 dma-channel-mask:
73 maxItems: 1 56 maxItems: 1
74 <<
75 dma-coherent: true <<
76 57
77 required: 58 required:
78 - compatible 59 - compatible
79 - reg 60 - reg
80 - interrupts 61 - interrupts
81 - "#dma-cells" 62 - "#dma-cells"
82 - iommus 63 - iommus
83 - dma-channels 64 - dma-channels
84 - dma-channel-mask 65 - dma-channel-mask
85 66
86 additionalProperties: false 67 additionalProperties: false
87 68
88 examples: 69 examples:
89 - | 70 - |
90 #include <dt-bindings/interrupt-controller 71 #include <dt-bindings/interrupt-controller/arm-gic.h>
91 #include <dt-bindings/dma/qcom-gpi.h> 72 #include <dt-bindings/dma/qcom-gpi.h>
92 gpi_dma0: dma-controller@800000 { 73 gpi_dma0: dma-controller@800000 {
93 compatible = "qcom,sdm845-gpi-dma"; 74 compatible = "qcom,sdm845-gpi-dma";
94 #dma-cells = <3>; 75 #dma-cells = <3>;
95 reg = <0x00800000 0x60000>; 76 reg = <0x00800000 0x60000>;
96 iommus = <&apps_smmu 0x0016 0x0>; 77 iommus = <&apps_smmu 0x0016 0x0>;
97 dma-channels = <13>; 78 dma-channels = <13>;
98 dma-channel-mask = <0xfa>; 79 dma-channel-mask = <0xfa>;
99 interrupts = <GIC_SPI 244 IRQ_TYPE_LEV 80 interrupts = <GIC_SPI 244 IRQ_TYPE_LEVEL_HIGH>,
100 <GIC_SPI 245 IRQ_TYPE_LEV 81 <GIC_SPI 245 IRQ_TYPE_LEVEL_HIGH>,
101 <GIC_SPI 246 IRQ_TYPE_LEV 82 <GIC_SPI 246 IRQ_TYPE_LEVEL_HIGH>,
102 <GIC_SPI 247 IRQ_TYPE_LEV 83 <GIC_SPI 247 IRQ_TYPE_LEVEL_HIGH>,
103 <GIC_SPI 248 IRQ_TYPE_LEV 84 <GIC_SPI 248 IRQ_TYPE_LEVEL_HIGH>,
104 <GIC_SPI 249 IRQ_TYPE_LEV 85 <GIC_SPI 249 IRQ_TYPE_LEVEL_HIGH>,
105 <GIC_SPI 250 IRQ_TYPE_LEV 86 <GIC_SPI 250 IRQ_TYPE_LEVEL_HIGH>,
106 <GIC_SPI 251 IRQ_TYPE_LEV 87 <GIC_SPI 251 IRQ_TYPE_LEVEL_HIGH>,
107 <GIC_SPI 252 IRQ_TYPE_LEV 88 <GIC_SPI 252 IRQ_TYPE_LEVEL_HIGH>,
108 <GIC_SPI 253 IRQ_TYPE_LEV 89 <GIC_SPI 253 IRQ_TYPE_LEVEL_HIGH>,
109 <GIC_SPI 254 IRQ_TYPE_LEV 90 <GIC_SPI 254 IRQ_TYPE_LEVEL_HIGH>,
110 <GIC_SPI 255 IRQ_TYPE_LEV 91 <GIC_SPI 255 IRQ_TYPE_LEVEL_HIGH>,
111 <GIC_SPI 256 IRQ_TYPE_LEV 92 <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>;
112 }; 93 };
113 94
114 ... 95 ...
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