1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: "http://devicetree.org/schemas/arm/mediatek/mediatek,mmsys.yaml#"
5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
6
7 title: MediaTek mmsys controller
8
9 maintainers:
10 - Matthias Brugger <matthias.bgg@gmail.com>
11
12 description:
13 The MediaTek mmsys system controller provides clock control, routing control,
14 and miscellaneous control in mmsys partition.
15
16 properties:
17 $nodename:
18 pattern: "^syscon@[0-9a-f]+$"
19
20 compatible:
21 oneOf:
22 - items:
23 - enum:
24 - mediatek,mt2701-mmsys
25 - mediatek,mt2712-mmsys
26 - mediatek,mt6765-mmsys
27 - mediatek,mt6779-mmsys
28 - mediatek,mt6797-mmsys
29 - mediatek,mt8167-mmsys
30 - mediatek,mt8173-mmsys
31 - mediatek,mt8183-mmsys
32 - mediatek,mt8186-mmsys
33 - mediatek,mt8192-mmsys
34 - mediatek,mt8195-mmsys
35 - mediatek,mt8365-mmsys
36 - const: syscon
37 - items:
38 - const: mediatek,mt7623-mmsys
39 - const: mediatek,mt2701-mmsys
40 - const: syscon
41
42 reg:
43 maxItems: 1
44
45 power-domains:
46 description:
47 A phandle and PM domain specifier as defined by bindings
48 of the power controller specified by phandle. See
49 Documentation/devicetree/bindings/power/power-domain.yaml for details.
50
51 mboxes:
52 description:
53 Using mailbox to communicate with GCE, it should have this
54 property and list of phandle, mailbox specifiers. See
55 Documentation/devicetree/bindings/mailbox/mtk-gce.txt for details.
56 $ref: /schemas/types.yaml#/definitions/phandle-array
57
58 mediatek,gce-client-reg:
59 description:
60 The register of client driver can be configured by gce with 4 arguments
61 defined in this property, such as phandle of gce, subsys id,
62 register offset and size.
63 Each subsys id is mapping to a base address of display function blocks
64 register which is defined in the gce header
65 include/dt-bindings/gce/<chip>-gce.h.
66 $ref: /schemas/types.yaml#/definitions/phandle-array
67 maxItems: 1
68
69 "#clock-cells":
70 const: 1
71
72 '#reset-cells':
73 const: 1
74
75 required:
76 - compatible
77 - reg
78 - "#clock-cells"
79
80 additionalProperties: false
81
82 examples:
83 - |
84 #include <dt-bindings/power/mt8173-power.h>
85 #include <dt-bindings/gce/mt8173-gce.h>
86
87 mmsys: syscon@14000000 {
88 compatible = "mediatek,mt8173-mmsys", "syscon";
89 reg = <0x14000000 0x1000>;
90 power-domains = <&spm MT8173_POWER_DOMAIN_MM>;
91 #clock-cells = <1>;
92 #reset-cells = <1>;
93 mboxes = <&gce 0 CMDQ_THR_PRIO_HIGHEST>,
94 <&gce 1 CMDQ_THR_PRIO_HIGHEST>;
95 mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0 0x1000>;
96 };
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