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/media/media 4 $id: http://devicetree.org/schemas/media/mediatek,mdp3-rdma.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: MediaTek Read Direct Memory Access 7 title: MediaTek Read Direct Memory Access
8 8
9 maintainers: 9 maintainers:
10 - Matthias Brugger <matthias.bgg@gmail.com> 10 - Matthias Brugger <matthias.bgg@gmail.com>
11 - Moudy Ho <moudy.ho@mediatek.com> 11 - Moudy Ho <moudy.ho@mediatek.com>
12 12
13 description: | 13 description: |
14 MediaTek Read Direct Memory Access(RDMA) com 14 MediaTek Read Direct Memory Access(RDMA) component used to do read DMA.
15 It contains one line buffer to store the suf 15 It contains one line buffer to store the sufficient pixel data, and
16 must be siblings to the central MMSYS_CONFIG 16 must be siblings to the central MMSYS_CONFIG node.
17 For a description of the MMSYS_CONFIG bindin 17 For a description of the MMSYS_CONFIG binding, see
18 Documentation/devicetree/bindings/arm/mediat 18 Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
19 for details. 19 for details.
20 20
21 properties: 21 properties:
22 compatible: 22 compatible:
23 oneOf: !! 23 items:
24 - enum: !! 24 - const: mediatek,mt8183-mdp3-rdma
25 - mediatek,mt8183-mdp3-rdma <<
26 - mediatek,mt8188-mdp3-rdma <<
27 - mediatek,mt8195-mdp3-rdma <<
28 - mediatek,mt8195-vdo1-rdma <<
29 - items: <<
30 - const: mediatek,mt8188-vdo1-rdma <<
31 - const: mediatek,mt8195-vdo1-rdma <<
32 25
33 reg: 26 reg:
34 maxItems: 1 27 maxItems: 1
35 28
36 mediatek,gce-client-reg: 29 mediatek,gce-client-reg:
37 $ref: /schemas/types.yaml#/definitions/pha 30 $ref: /schemas/types.yaml#/definitions/phandle-array
38 items: 31 items:
39 items: 32 items:
40 - description: phandle of GCE 33 - description: phandle of GCE
41 - description: GCE subsys id 34 - description: GCE subsys id
42 - description: register offset 35 - description: register offset
43 - description: register size 36 - description: register size
44 description: The register of client driver 37 description: The register of client driver can be configured by gce with
45 4 arguments defined in this property. Ea 38 4 arguments defined in this property. Each GCE subsys id is mapping to
46 a client defined in the header include/d 39 a client defined in the header include/dt-bindings/gce/<chip>-gce.h.
47 40
48 mediatek,gce-events: 41 mediatek,gce-events:
49 description: 42 description:
50 The event id which is mapping to the spe 43 The event id which is mapping to the specific hardware event signal
51 to gce. The event id is defined in the g 44 to gce. The event id is defined in the gce header
52 include/dt-bindings/gce/<chip>-gce.h of 45 include/dt-bindings/gce/<chip>-gce.h of each chips.
53 $ref: /schemas/types.yaml#/definitions/uin 46 $ref: /schemas/types.yaml#/definitions/uint32-array
54 47
55 mediatek,scp: <<
56 $ref: /schemas/types.yaml#/definitions/pha <<
57 description: <<
58 Phandle to the System Control Processor <<
59 and stopping the MDP3, for sending frame <<
60 VPU and to install Inter-Processor Inter <<
61 processing states. <<
62 <<
63 power-domains: 48 power-domains:
64 maxItems: 1 49 maxItems: 1
65 50
66 clocks: 51 clocks:
67 items: 52 items:
68 - description: RDMA clock 53 - description: RDMA clock
69 - description: RSZ clock 54 - description: RSZ clock
70 minItems: 1 <<
71 55
72 iommus: 56 iommus:
73 maxItems: 1 57 maxItems: 1
74 58
75 mboxes: 59 mboxes:
76 items: 60 items:
77 - description: used for 1st data pipe fr 61 - description: used for 1st data pipe from RDMA
78 - description: used for 2nd data pipe fr 62 - description: used for 2nd data pipe from RDMA
79 - description: used for 3rd data pipe fr <<
80 - description: used for 4th data pipe fr <<
81 - description: used for the data pipe fr <<
82 minItems: 1 <<
83 <<
84 interrupts: <<
85 maxItems: 1 <<
86 63
87 '#dma-cells': 64 '#dma-cells':
88 const: 1 65 const: 1
89 66
90 required: 67 required:
91 - compatible 68 - compatible
92 - reg 69 - reg
93 - mediatek,gce-client-reg 70 - mediatek,gce-client-reg
>> 71 - mediatek,gce-events
94 - power-domains 72 - power-domains
95 - clocks 73 - clocks
96 - iommus 74 - iommus
>> 75 - mboxes
97 - '#dma-cells' 76 - '#dma-cells'
98 <<
99 allOf: <<
100 - if: <<
101 properties: <<
102 compatible: <<
103 contains: <<
104 const: mediatek,mt8183-mdp3-rdma <<
105 <<
106 then: <<
107 properties: <<
108 clocks: <<
109 minItems: 2 <<
110 <<
111 mboxes: <<
112 minItems: 2 <<
113 <<
114 required: <<
115 - mboxes <<
116 - mediatek,gce-events <<
117 <<
118 - if: <<
119 properties: <<
120 compatible: <<
121 contains: <<
122 const: mediatek,mt8195-mdp3-rdma <<
123 <<
124 then: <<
125 properties: <<
126 clocks: <<
127 maxItems: 1 <<
128 <<
129 mboxes: <<
130 minItems: 5 <<
131 <<
132 required: <<
133 - mediatek,gce-events <<
134 <<
135 - if: <<
136 properties: <<
137 compatible: <<
138 contains: <<
139 const: mediatek,mt8195-vdo1-rdma <<
140 <<
141 then: <<
142 properties: <<
143 clocks: <<
144 maxItems: 1 <<
145 77
146 additionalProperties: false 78 additionalProperties: false
147 79
148 examples: 80 examples:
149 - | 81 - |
150 #include <dt-bindings/clock/mt8183-clk.h> 82 #include <dt-bindings/clock/mt8183-clk.h>
151 #include <dt-bindings/gce/mt8183-gce.h> 83 #include <dt-bindings/gce/mt8183-gce.h>
152 #include <dt-bindings/power/mt8183-power.h 84 #include <dt-bindings/power/mt8183-power.h>
153 #include <dt-bindings/memory/mt8183-larb-p 85 #include <dt-bindings/memory/mt8183-larb-port.h>
154 86
155 dma-controller@14001000 { 87 dma-controller@14001000 {
156 compatible = "mediatek,mt8183-mdp3-rdm 88 compatible = "mediatek,mt8183-mdp3-rdma";
157 reg = <0x14001000 0x1000>; 89 reg = <0x14001000 0x1000>;
158 mediatek,gce-client-reg = <&gce SUBSYS 90 mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x1000 0x1000>;
159 mediatek,gce-events = <CMDQ_EVENT_MDP_ 91 mediatek,gce-events = <CMDQ_EVENT_MDP_RDMA0_SOF>,
160 <CMDQ_EVENT_MDP_ 92 <CMDQ_EVENT_MDP_RDMA0_EOF>;
161 power-domains = <&spm MT8183_POWER_DOM 93 power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
162 clocks = <&mmsys CLK_MM_MDP_RDMA0>, 94 clocks = <&mmsys CLK_MM_MDP_RDMA0>,
163 <&mmsys CLK_MM_MDP_RSZ1>; 95 <&mmsys CLK_MM_MDP_RSZ1>;
164 iommus = <&iommu>; 96 iommus = <&iommu>;
165 mboxes = <&gce 20 CMDQ_THR_PRIO_LOWEST 97 mboxes = <&gce 20 CMDQ_THR_PRIO_LOWEST>,
166 <&gce 21 CMDQ_THR_PRIO_LOWEST 98 <&gce 21 CMDQ_THR_PRIO_LOWEST>;
167 #dma-cells = <1>; 99 #dma-cells = <1>;
168 }; 100 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.