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$id: http://devicetree.org/schemas/timer/renesas,tmu.yaml#
5$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 - const: renesas,tmu
40
41 reg:
42 maxItems: 1
43
44 interrupts:
45 minItems: 2
46 maxItems: 3
47
48 clocks:
49 maxItems: 1
50
51 clock-names:
52 const: fck
53
54 power-domains:
55 maxItems: 1
56
57 resets:
58 maxItems: 1
59
60 '#renesas,channels':
61 description:
62 Number of channels implemented by the timer.
63 $ref: /schemas/types.yaml#/definitions/uint32
64 enum: [ 2, 3 ]
65 default: 3
66
67required:
68 - compatible
69 - reg
70 - interrupts
71 - clocks
72 - clock-names
73 - power-domains
74
75if:
76 not:
77 properties:
78 compatible:
79 contains:
80 enum:
81 - renesas,tmu-r8a7740
82 - renesas,tmu-r8a7778
83 - renesas,tmu-r8a7779
84then:
85 required:
86 - resets
87
88additionalProperties: false
89
90examples:
91 - |
92 #include <dt-bindings/clock/r8a7779-clock.h>
93 #include <dt-bindings/interrupt-controller/arm-gic.h>
94 #include <dt-bindings/power/r8a7779-sysc.h>
95 tmu0: timer@ffd80000 {
96 compatible = "renesas,tmu-r8a7779", "renesas,tmu";
97 reg = <0xffd80000 0x30>;
98 interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
99 <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
100 <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
101 clocks = <&mstp0_clks R8A7779_CLK_TMU0>;
102 clock-names = "fck";
103 power-domains = <&sysc R8A7779_PD_ALWAYS_ON>;
104 #renesas,channels = <3>;
105 };