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/display/med 4 $id: http://devicetree.org/schemas/display/mediatek/mediatek,gamma.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Mediatek display gamma correction 7 title: Mediatek display gamma correction
8 8
9 maintainers: 9 maintainers:
10 - Chun-Kuang Hu <chunkuang.hu@kernel.org> 10 - Chun-Kuang Hu <chunkuang.hu@kernel.org>
11 - Philipp Zabel <p.zabel@pengutronix.de> 11 - Philipp Zabel <p.zabel@pengutronix.de>
12 12
13 description: | 13 description: |
14 Mediatek display gamma correction, namely GA 14 Mediatek display gamma correction, namely GAMMA, provides a nonlinear
15 operation used to adjust luminance in displ 15 operation used to adjust luminance in display system.
16 GAMMA device node must be siblings to the ce 16 GAMMA device node 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 oneOf:
24 - enum: 24 - enum:
25 - mediatek,mt8173-disp-gamma 25 - mediatek,mt8173-disp-gamma
26 - mediatek,mt8183-disp-gamma 26 - mediatek,mt8183-disp-gamma
27 - mediatek,mt8195-disp-gamma 27 - mediatek,mt8195-disp-gamma
28 - items: 28 - items:
29 - enum: 29 - enum:
30 - mediatek,mt6795-disp-gamma 30 - mediatek,mt6795-disp-gamma
31 - const: mediatek,mt8173-disp-gamma 31 - const: mediatek,mt8173-disp-gamma
32 - items: 32 - items:
33 - enum: 33 - enum:
34 - mediatek,mt8186-disp-gamma 34 - mediatek,mt8186-disp-gamma
35 - mediatek,mt8188-disp-gamma 35 - mediatek,mt8188-disp-gamma
36 - mediatek,mt8192-disp-gamma 36 - mediatek,mt8192-disp-gamma
37 - mediatek,mt8195-disp-gamma 37 - mediatek,mt8195-disp-gamma
38 - mediatek,mt8365-disp-gamma 38 - mediatek,mt8365-disp-gamma
39 - const: mediatek,mt8183-disp-gamma 39 - const: mediatek,mt8183-disp-gamma
40 - items: 40 - items:
41 - enum: 41 - enum:
42 - mediatek,mt8188-disp-gamma 42 - mediatek,mt8188-disp-gamma
43 - const: mediatek,mt8195-disp-gamma 43 - const: mediatek,mt8195-disp-gamma
44 44
45 reg: 45 reg:
46 maxItems: 1 46 maxItems: 1
47 47
48 interrupts: 48 interrupts:
49 maxItems: 1 49 maxItems: 1
50 50
51 power-domains: 51 power-domains:
52 description: A phandle and PM domain speci 52 description: A phandle and PM domain specifier as defined by bindings of
53 the power controller specified by phandl 53 the power controller specified by phandle. See
54 Documentation/devicetree/bindings/power/ 54 Documentation/devicetree/bindings/power/power-domain.yaml for details.
55 55
56 clocks: 56 clocks:
57 items: 57 items:
58 - description: GAMMA Clock 58 - description: GAMMA Clock
59 59
60 mediatek,gce-client-reg: 60 mediatek,gce-client-reg:
61 description: The register of client driver 61 description: The register of client driver can be configured by gce with
62 4 arguments defined in this property, su 62 4 arguments defined in this property, such as phandle of gce, subsys id,
63 register offset and size. Each GCE subsy 63 register offset and size. Each GCE subsys id is mapping to a client
64 defined in the header include/dt-binding 64 defined in the header include/dt-bindings/gce/<chip>-gce.h.
65 $ref: /schemas/types.yaml#/definitions/pha 65 $ref: /schemas/types.yaml#/definitions/phandle-array
66 maxItems: 1 66 maxItems: 1
67 67
68 required: 68 required:
69 - compatible 69 - compatible
70 - reg 70 - reg
71 - interrupts 71 - interrupts
72 - power-domains 72 - power-domains
73 - clocks 73 - clocks
74 74
75 additionalProperties: false 75 additionalProperties: false
76 76
77 examples: 77 examples:
78 - | 78 - |
79 #include <dt-bindings/interrupt-controller 79 #include <dt-bindings/interrupt-controller/arm-gic.h>
80 #include <dt-bindings/clock/mt8173-clk.h> 80 #include <dt-bindings/clock/mt8173-clk.h>
81 #include <dt-bindings/power/mt8173-power.h 81 #include <dt-bindings/power/mt8173-power.h>
82 #include <dt-bindings/gce/mt8173-gce.h> 82 #include <dt-bindings/gce/mt8173-gce.h>
83 83
84 soc { 84 soc {
85 #address-cells = <2>; 85 #address-cells = <2>;
86 #size-cells = <2>; 86 #size-cells = <2>;
87 87
88 gamma@14016000 { 88 gamma@14016000 {
89 compatible = "mediatek,mt8173-disp 89 compatible = "mediatek,mt8173-disp-gamma";
90 reg = <0 0x14016000 0 0x1000>; 90 reg = <0 0x14016000 0 0x1000>;
91 interrupts = <GIC_SPI 190 IRQ_TYPE 91 interrupts = <GIC_SPI 190 IRQ_TYPE_LEVEL_LOW>;
92 power-domains = <&scpsys MT8173_PO 92 power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
93 clocks = <&mmsys CLK_MM_DISP_GAMMA 93 clocks = <&mmsys CLK_MM_DISP_GAMMA>;
94 mediatek,gce-client-reg = <&gce SU 94 mediatek,gce-client-reg = <&gce SUBSYS_1401XXXX 0x6000 0x1000>;
95 }; 95 };
96 }; 96 };
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