dt-bindings: display: mediatek, ovl: Fix 'iommu' required property typo
[linux-2.6-microblaze.git] / Documentation / devicetree / bindings / display / mediatek / mediatek,ovl.yaml
1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/display/mediatek/mediatek,ovl.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Mediatek display overlay
8
9 maintainers:
10   - Chun-Kuang Hu <chunkuang.hu@kernel.org>
11   - Philipp Zabel <p.zabel@pengutronix.de>
12
13 description: |
14   Mediatek display overlay, namely OVL, can do alpha blending from
15   the memory.
16   OVL device node must be siblings to the central MMSYS_CONFIG node.
17   For a description of the MMSYS_CONFIG binding, see
18   Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
19   for details.
20
21 properties:
22   compatible:
23     oneOf:
24       - items:
25           - const: mediatek,mt2701-disp-ovl
26       - items:
27           - const: mediatek,mt8173-disp-ovl
28       - items:
29           - const: mediatek,mt8183-disp-ovl
30       - items:
31           - const: mediatek,mt8192-disp-ovl
32       - items:
33           - enum:
34               - mediatek,mt7623-disp-ovl
35               - mediatek,mt2712-disp-ovl
36           - enum:
37               - mediatek,mt2701-disp-ovl
38       - items:
39           - enum:
40               - mediatek,mt8195-disp-ovl
41           - enum:
42               - mediatek,mt8183-disp-ovl
43
44   reg:
45     maxItems: 1
46
47   interrupts:
48     maxItems: 1
49
50   power-domains:
51     description: A phandle and PM domain specifier as defined by bindings of
52       the power controller specified by phandle. See
53       Documentation/devicetree/bindings/power/power-domain.yaml for details.
54
55   clocks:
56     items:
57       - description: OVL Clock
58
59   iommus:
60     description:
61       This property should point to the respective IOMMU block with master port as argument,
62       see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details.
63
64   mediatek,gce-client-reg:
65     description: The register of client driver can be configured by gce with
66       4 arguments defined in this property, such as phandle of gce, subsys id,
67       register offset and size. Each GCE subsys id is mapping to a client
68       defined in the header include/dt-bindings/gce/<chip>-gce.h.
69     $ref: /schemas/types.yaml#/definitions/phandle-array
70     maxItems: 1
71
72 required:
73   - compatible
74   - reg
75   - interrupts
76   - power-domains
77   - clocks
78   - iommus
79
80 additionalProperties: false
81
82 examples:
83   - |
84
85     ovl0: ovl@1400c000 {
86         compatible = "mediatek,mt8173-disp-ovl";
87         reg = <0 0x1400c000 0 0x1000>;
88         interrupts = <GIC_SPI 180 IRQ_TYPE_LEVEL_LOW>;
89         power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
90         clocks = <&mmsys CLK_MM_DISP_OVL0>;
91         iommus = <&iommu M4U_PORT_DISP_OVL0>;
92         mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0xc000 0x1000>;
93     };