tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1* Exynos Thermal Management Unit (TMU)
2
3** Required properties:
4
5- compatible : One of the following:
6 "samsung,exynos4412-tmu"
7 "samsung,exynos4210-tmu"
8 "samsung,exynos5250-tmu"
9 "samsung,exynos5440-tmu"
10- interrupt-parent : The phandle for the interrupt controller
11- reg : Address range of the thermal registers. For soc's which has multiple
12 instances of TMU and some registers are shared across all TMU's like
13 interrupt related then 2 set of register has to supplied. First set
14 belongs to each instance of TMU and second set belongs to common TMU
15 registers.
16- interrupts : Should contain interrupt for thermal system
17- clocks : The main clock for TMU device
18- clock-names : Thermal system clock name
19- vtmu-supply: This entry is optional and provides the regulator node supplying
20 voltage to TMU. If needed this entry can be placed inside
21 board/platform specific dts file.
22
23Example 1):
24
25 tmu@100C0000 {
26 compatible = "samsung,exynos4412-tmu";
27 interrupt-parent = <&combiner>;
28 reg = <0x100C0000 0x100>;
29 interrupts = <2 4>;
30 clocks = <&clock 383>;
31 clock-names = "tmu_apbif";
32 status = "disabled";
33 vtmu-supply = <&tmu_regulator_node>;
34 };
35
36Example 2):
37
38 tmuctrl_0: tmuctrl@160118 {
39 compatible = "samsung,exynos5440-tmu";
40 reg = <0x160118 0x230>, <0x160368 0x10>;
41 interrupts = <0 58 0>;
42 clocks = <&clock 21>;
43 clock-names = "tmu_apbif";
44 };
45
46Note: For multi-instance tmu each instance should have an alias correctly
47numbered in "aliases" node.
48
49Example:
50
51aliases {
52 tmuctrl0 = &tmuctrl_0;
53 tmuctrl1 = &tmuctrl_1;
54 tmuctrl2 = &tmuctrl_2;
55};