tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/timer/renesas,tmu.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Renesas R-Mobile/R-Car Timer Unit (TMU)
8
9maintainers:
10 - Geert Uytterhoeven <geert+renesas@glider.be>
11 - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
12
13description:
14 The TMU is a 32-bit timer/counter with configurable clock inputs and
15 programmable compare match.
16
17 Channels share hardware resources but their counter and compare match value
18 are independent. The TMU hardware supports up to three channels.
19
20properties:
21 compatible:
22 items:
23 - enum:
24 - renesas,tmu-r8a7740 # R-Mobile A1
25 - renesas,tmu-r8a774a1 # RZ/G2M
26 - renesas,tmu-r8a774b1 # RZ/G2N
27 - renesas,tmu-r8a774c0 # RZ/G2E
28 - renesas,tmu-r8a774e1 # RZ/G2H
29 - renesas,tmu-r8a7778 # R-Car M1A
30 - renesas,tmu-r8a7779 # R-Car H1
31 - renesas,tmu-r8a7795 # R-Car H3
32 - renesas,tmu-r8a7796 # R-Car M3-W
33 - renesas,tmu-r8a77961 # R-Car M3-W+
34 - renesas,tmu-r8a77965 # R-Car M3-N
35 - renesas,tmu-r8a77970 # R-Car V3M
36 - renesas,tmu-r8a77980 # R-Car V3H
37 - renesas,tmu-r8a77990 # R-Car E3
38 - renesas,tmu-r8a77995 # R-Car D3
39 - renesas,tmu-r8a779a0 # R-Car V3U
40 - renesas,tmu-r8a779f0 # R-Car S4-8
41 - const: renesas,tmu
42
43 reg:
44 maxItems: 1
45
46 interrupts:
47 minItems: 2
48 maxItems: 3
49
50 clocks:
51 maxItems: 1
52
53 clock-names:
54 const: fck
55
56 power-domains:
57 maxItems: 1
58
59 resets:
60 maxItems: 1
61
62 '#renesas,channels':
63 description:
64 Number of channels implemented by the timer.
65 $ref: /schemas/types.yaml#/definitions/uint32
66 enum: [ 2, 3 ]
67 default: 3
68
69required:
70 - compatible
71 - reg
72 - interrupts
73 - clocks
74 - clock-names
75 - power-domains
76
77if:
78 not:
79 properties:
80 compatible:
81 contains:
82 enum:
83 - renesas,tmu-r8a7740
84 - renesas,tmu-r8a7778
85 - renesas,tmu-r8a7779
86then:
87 required:
88 - resets
89
90additionalProperties: false
91
92examples:
93 - |
94 #include <dt-bindings/clock/r8a7779-clock.h>
95 #include <dt-bindings/interrupt-controller/arm-gic.h>
96 #include <dt-bindings/power/r8a7779-sysc.h>
97 tmu0: timer@ffd80000 {
98 compatible = "renesas,tmu-r8a7779", "renesas,tmu";
99 reg = <0xffd80000 0x30>;
100 interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
101 <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
102 <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
103 clocks = <&mstp0_clks R8A7779_CLK_TMU0>;
104 clock-names = "fck";
105 power-domains = <&sysc R8A7779_PD_ALWAYS_ON>;
106 #renesas,channels = <3>;
107 };