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,aal.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Mediatek display adaptive ambient light processor
8
9 maintainers:
10 - Chun-Kuang Hu <chunkuang.hu@kernel.org>
11 - Philipp Zabel <p.zabel@pengutronix.de>
12
13 description: |
14 Mediatek display adaptive ambient light processor, namely AAL,
15 is responsible for backlight power saving and sunlight visibility improving.
16 AAL 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 - enum:
25 - mediatek,mt8173-disp-aal
26 - mediatek,mt8183-disp-aal
27 - mediatek,mt8195-mdp3-aal
28 - items:
29 - enum:
30 - mediatek,mt2712-disp-aal
31 - mediatek,mt6795-disp-aal
32 - const: mediatek,mt8173-disp-aal
33 - items:
34 - enum:
35 - mediatek,mt8186-disp-aal
36 - mediatek,mt8188-disp-aal
37 - mediatek,mt8192-disp-aal
38 - mediatek,mt8195-disp-aal
39 - mediatek,mt8365-disp-aal
40 - const: mediatek,mt8183-disp-aal
41
42 reg:
43 maxItems: 1
44
45 interrupts:
46 maxItems: 1
47
48 power-domains:
49 description: A phandle and PM domain specifier as defined by bindings of
50 the power controller specified by phandle. See
51 Documentation/devicetree/bindings/power/power-domain.yaml for details.
52
53 clocks:
54 items:
55 - description: AAL Clock
56
57 mediatek,gce-client-reg:
58 description: The register of client driver can be configured by gce with
59 4 arguments defined in this property, such as phandle of gce, subsys id,
60 register offset and size. Each GCE subsys id is mapping to a client
61 defined in the header include/dt-bindings/gce/<chip>-gce.h.
62 $ref: /schemas/types.yaml#/definitions/phandle-array
63 maxItems: 1
64
65 required:
66 - compatible
67 - reg
68 - interrupts
69 - power-domains
70 - clocks
71
72 additionalProperties: false
73
74 examples:
75 - |
76 #include <dt-bindings/interrupt-controller/arm-gic.h>
77 #include <dt-bindings/clock/mt8173-clk.h>
78 #include <dt-bindings/power/mt8173-power.h>
79 #include <dt-bindings/gce/mt8173-gce.h>
80
81 soc {
82 #address-cells = <2>;
83 #size-cells = <2>;
84
85 aal@14015000 {
86 compatible = "mediatek,mt8173-disp-aal";
87 reg = <0 0x14015000 0 0x1000>;
88 interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_LOW>;
89 power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
90 clocks = <&mmsys CLK_MM_DISP_AAL>;
91 mediatek,gce-client-reg = <&gce SUBSYS_1401XXXX 0x5000 0x1000>;
92 };
93 };
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