tjh.dev
Linux kernel mirror (for testing)
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1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/apple,h7-display-pipe.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Apple pre-DCP display controller
8
9maintainers:
10 - Sasha Finkelstein <fnkl.kernel@gmail.com>
11
12description:
13 A secondary display controller used to drive the "touchbar" on
14 certain Apple laptops.
15
16properties:
17 compatible:
18 items:
19 - enum:
20 - apple,t8112-display-pipe
21 - apple,t8103-display-pipe
22 - const: apple,h7-display-pipe
23
24 reg:
25 items:
26 - description: Primary register block, controls planes and blending
27 - description:
28 Contains other configuration registers like interrupt
29 and FIFO control
30
31 reg-names:
32 items:
33 - const: be
34 - const: fe
35
36 power-domains:
37 description:
38 Phandles to pmgr entries that are needed for this controller to turn on.
39 Aside from that, their specific functions are unknown
40 maxItems: 2
41
42 interrupts:
43 items:
44 - description: Unknown function
45 - description: Primary interrupt. Vsync events are reported via it
46
47 interrupt-names:
48 items:
49 - const: be
50 - const: fe
51
52 iommus:
53 maxItems: 1
54
55 port:
56 $ref: /schemas/graph.yaml#/properties/port
57 description: Output port. Always connected to apple,h7-display-pipe-mipi
58
59required:
60 - compatible
61 - reg
62 - interrupts
63 - port
64
65additionalProperties: false
66
67examples:
68 - |
69 #include <dt-bindings/interrupt-controller/apple-aic.h>
70 display-pipe@28200000 {
71 compatible = "apple,t8103-display-pipe", "apple,h7-display-pipe";
72 reg = <0x28200000 0xc000>,
73 <0x28400000 0x4000>;
74 reg-names = "be", "fe";
75 power-domains = <&ps_dispdfr_fe>, <&ps_dispdfr_be>;
76 interrupt-parent = <&aic>;
77 interrupts = <AIC_IRQ 502 IRQ_TYPE_LEVEL_HIGH>,
78 <AIC_IRQ 506 IRQ_TYPE_LEVEL_HIGH>;
79 interrupt-names = "be", "fe";
80 iommus = <&displaydfr_dart 0>;
81
82 port {
83 dfr_adp_out_mipi: endpoint {
84 remote-endpoint = <&dfr_mipi_in_adp>;
85 };
86 };
87 };
88...