tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/mediatek/mediatek,ufoe.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Mediatek display UFOe
8
9maintainers:
10 - Chun-Kuang Hu <chunkuang.hu@kernel.org>
11 - Philipp Zabel <p.zabel@pengutronix.de>
12
13description: |
14 Mediatek display UFOe stands for Unified Frame Optimization engine.
15 UFOe can cut the data rate for DSI port which may lead to reduce power
16 consumption.
17 UFOe device node must be siblings to the central MMSYS_CONFIG node.
18 For a description of the MMSYS_CONFIG binding, see
19 Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
20 for details.
21
22properties:
23 compatible:
24 oneOf:
25 - enum:
26 - mediatek,mt8173-disp-ufoe
27 - items:
28 - const: mediatek,mt6795-disp-ufoe
29 - const: mediatek,mt8173-disp-ufoe
30
31 reg:
32 maxItems: 1
33
34 interrupts:
35 maxItems: 1
36
37 power-domains:
38 description: A phandle and PM domain specifier as defined by bindings of
39 the power controller specified by phandle. See
40 Documentation/devicetree/bindings/power/power-domain.yaml for details.
41
42 clocks:
43 items:
44 - description: UFOe Clock
45
46 ports:
47 $ref: /schemas/graph.yaml#/properties/ports
48 description:
49 Input and output ports can have multiple endpoints, each of those
50 connects to either the primary, secondary, etc, display pipeline.
51
52 properties:
53 port@0:
54 $ref: /schemas/graph.yaml#/properties/port
55 description: UFOE input, usually from one of the RDMA blocks.
56
57 port@1:
58 $ref: /schemas/graph.yaml#/properties/port
59 description:
60 UFOE output to the input of the next desired component in the
61 display pipeline, usually one of the available DSI blocks.
62
63 required:
64 - port@0
65 - port@1
66
67required:
68 - compatible
69 - reg
70 - interrupts
71 - power-domains
72 - clocks
73
74additionalProperties: false
75
76examples:
77 - |
78 #include <dt-bindings/interrupt-controller/arm-gic.h>
79 #include <dt-bindings/clock/mt8173-clk.h>
80 #include <dt-bindings/power/mt8173-power.h>
81 soc {
82 #address-cells = <2>;
83 #size-cells = <2>;
84
85 ufoe@1401a000 {
86 compatible = "mediatek,mt8173-disp-ufoe";
87 reg = <0 0x1401a000 0 0x1000>;
88 interrupts = <GIC_SPI 191 IRQ_TYPE_LEVEL_LOW>;
89 power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
90 clocks = <&mmsys CLK_MM_DISP_UFOE>;
91 };
92 };