bindings/thermal/exynos-thermal.txt

1 * Exynos Thermal Management Unit (TMU)
5 - compatible : One of the following:
6 	       "samsung,exynos3250-tmu"
7 	       "samsung,exynos4412-tmu"
8 	       "samsung,exynos4210-tmu"
9 	       "samsung,exynos5250-tmu"
10 	       "samsung,exynos5260-tmu"
11 	       "samsung,exynos5420-tmu" for TMU channel 0, 1 on Exynos5420
12 	       "samsung,exynos5420-tmu-ext-triminfo" for TMU channels 2, 3 and 4
14                "samsung,exynos5433-tmu"
15 	       "samsung,exynos7-tmu"
16 - reg : Address range of the thermal registers. For soc's which has multiple
17 	instances of TMU and some registers are shared across all TMU's like
19 	belongs	to register set of TMU instance and second set belongs to
20 	registers shared with the TMU instance.
22   NOTE: On Exynos5420, the TRIMINFO register is misplaced for TMU
24 	Use "samsung,exynos5420-tmu-ext-triminfo" in cases, there is a misplaced
27 	TRIMINFO at 0x1006c000 contains data for TMU channel 3
28 	TRIMINFO at 0x100a0000 contains data for TMU channel 4
29 	TRIMINFO at 0x10068000 contains data for TMU channel 2
31 - interrupts : Should contain interrupt for thermal system
32 - clocks : The main clocks for TMU device
33 	-- 1. operational clock for TMU channel
34 	-- 2. optional clock to access the shared registers of TMU channel
35 	-- 3. optional special clock for functional operation
36 - clock-names : Thermal system clock name
37 	-- "tmu_apbif" operational clock for current TMU channel
38 	-- "tmu_triminfo_apbif" clock to access the shared triminfo register
39 		for current TMU channel
40 	-- "tmu_sclk" clock for functional operation of the current TMU
43 The Exynos TMU supports generating interrupts when reaching given
46  - most of SoC: 4
47  - samsung,exynos5433-tmu: 8
48  - samsung,exynos7-tmu: 8
52 - vtmu-supply: This entry is optional and provides the regulator node supplying
53 		voltage to TMU. If needed this entry can be placed inside
58 	tmu@100c0000 {
59 		compatible = "samsung,exynos4412-tmu";
60 		interrupt-parent = <&combiner>;
64 		clock-names = "tmu_apbif";
65 		vtmu-supply = <&tmu_regulator_node>;
66 		#thermal-sensor-cells = <0>;
70 	tmu_cpu2: tmu@10068000 {
71 		compatible = "samsung,exynos5420-tmu-ext-triminfo";
75 		clock-names = "tmu_apbif", "tmu_triminfo_apbif";
76 		#thermal-sensor-cells = <0>;
79 	tmu_cpu3: tmu@1006c000 {
80 		compatible = "samsung,exynos5420-tmu-ext-triminfo";
84 		clock-names = "tmu_apbif", "tmu_triminfo_apbif";
85 		#thermal-sensor-cells = <0>;
88 	tmu_gpu: tmu@100a0000 {
89 		compatible = "samsung,exynos5420-tmu-ext-triminfo";
93 		clock-names = "tmu_apbif", "tmu_triminfo_apbif";
94 		#thermal-sensor-cells = <0>;
97 Note: For multi-instance tmu each instance should have an alias correctly