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,dsc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: mediatek display DSC controller
8
9 maintainers:
10 - Chun-Kuang Hu <chunkuang.hu@kernel.org>
11 - Philipp Zabel <p.zabel@pengutronix.de>
12
13 description: |
14 The DSC standard is a specification of the algorithms used for
15 compressing and decompressing image display streams, including
16 the specification of the syntax and semantics of the compressed
17 video bit stream. DSC is designed for real-time systems with
18 real-time compression, transmission, decompression and Display.
19
20 properties:
21 compatible:
22 oneOf:
23 - enum:
24 - mediatek,mt8195-disp-dsc
25
26 reg:
27 maxItems: 1
28
29 interrupts:
30 maxItems: 1
31
32 clocks:
33 items:
34 - description: DSC Wrapper Clock
35
36 power-domains:
37 description: A phandle and PM domain specifier as defined by bindings of
38 the power controller specified by phandle. See
39 Documentation/devicetree/bindings/power/power-domain.yaml for details.
40
41 mediatek,gce-client-reg:
42 description:
43 The register of client driver can be configured by gce with 4 arguments
44 defined in this property, such as phandle of gce, subsys id,
45 register offset and size.
46 Each subsys id is mapping to a base address of display function blocks
47 register which is defined in the gce header
48 include/dt-bindings/gce/<chip>-gce.h.
49 $ref: /schemas/types.yaml#/definitions/phandle-array
50 maxItems: 1
51
52 required:
53 - compatible
54 - reg
55 - interrupts
56 - power-domains
57 - clocks
58
59 additionalProperties: false
60
61 examples:
62 - |
63 #include <dt-bindings/interrupt-controller/arm-gic.h>
64 #include <dt-bindings/clock/mt8195-clk.h>
65 #include <dt-bindings/power/mt8195-power.h>
66 #include <dt-bindings/gce/mt8195-gce.h>
67
68 soc {
69 #address-cells = <2>;
70 #size-cells = <2>;
71
72 dsc0: disp_dsc_wrap@1c009000 {
73 compatible = "mediatek,mt8195-disp-dsc";
74 reg = <0 0x1c009000 0 0x1000>;
75 interrupts = <GIC_SPI 645 IRQ_TYPE_LEVEL_HIGH 0>;
76 power-domains = <&spm MT8195_POWER_DOMAIN_VDOSYS0>;
77 clocks = <&vdosys0 CLK_VDO0_DSC_WRAP0>;
78 mediatek,gce-client-reg = <&gce1 SUBSYS_1c00XXXX 0x9000 0x1000>;
79 };
80 };
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