* Exynos Thermal Management Unit (TMU) ** Required properties: - compatible : One of the following: "samsung,exynos3250-tmu" "samsung,exynos4412-tmu" "samsung,exynos4210-tmu" "samsung,exynos5250-tmu" "samsung,exynos5260-tmu" "samsung,exynos5420-tmu" for TMU channel 0, 1 on Exynos5420 "samsung,exynos5420-tmu-ext-triminfo" for TMU channels 2, 3 and 4 Exynos5420 (Must pass triminfo base and triminfo clock) "samsung,exynos5440-tmu" "samsung,exynos7-tmu" - interrupt-parent : The phandle for the interrupt controller - reg : Address range of the thermal registers. For soc's which has multiple instances of TMU and some registers are shared across all TMU's like interrupt related then 2 set of register has to supplied. First set belongs to register set of TMU instance and second set belongs to registers shared with the TMU instance. NOTE: On Exynos5420, the TRIMINFO register is misplaced for TMU channels 2, 3 and 4 Use "samsung,exynos5420-tmu-ext-triminfo" in cases, there is a misplaced register, also provide clock to access that base. TRIMINFO at 0x1006c000 contains data for TMU channel 3 TRIMINFO at 0x100a0000 contains data for TMU channel 4 TRIMINFO at 0x10068000 contains data for TMU channel 2 - interrupts : Should contain interrupt for thermal system - clocks : The main clocks for TMU device -- 1. operational clock for TMU channel -- 2. optional clock to access the shared registers of TMU channel -- 3. optional special clock for functional operation - clock-names : Thermal system clock name -- "tmu_apbif" operational clock for current TMU channel -- "tmu_triminfo_apbif" clock to access the shared triminfo register for current TMU channel -- "tmu_sclk" clock for functional operation of the current TMU channel - vtmu-supply: This entry is optional and provides the regulator node supplying voltage to TMU. If needed this entry can be placed inside board/platform specific dts file. Following properties are mandatory (depending on SoC): - samsung,tmu_gain: Gain value for internal TMU operation. - samsung,tmu_reference_voltage: Value of TMU IP block's reference voltage - samsung,tmu_noise_cancel_mode: Mode for noise cancellation - samsung,tmu_efuse_value: Default level of temperature - it is needed when in factory fusing produced wrong value - samsung,tmu_min_efuse_value: Minimum temperature fused value - samsung,tmu_max_efuse_value: Maximum temperature fused value - samsung,tmu_first_point_trim: First point trimming value - samsung,tmu_second_point_trim: Second point trimming value - samsung,tmu_default_temp_offset: Default temperature offset - samsung,tmu_cal_type: Callibration type Example 1): tmu@100C0000 { compatible = "samsung,exynos4412-tmu"; interrupt-parent = <&combiner>; reg = <0x100C0000 0x100>; interrupts = <2 4>; clocks = <&clock 383>; clock-names = "tmu_apbif"; status = "disabled"; vtmu-supply = <&tmu_regulator_node>; #include "exynos4412-tmu-sensor-conf.dtsi" }; Example 2): tmuctrl_0: tmuctrl@160118 { compatible = "samsung,exynos5440-tmu"; reg = <0x160118 0x230>, <0x160368 0x10>; interrupts = <0 58 0>; clocks = <&clock 21>; clock-names = "tmu_apbif"; #include "exynos5440-tmu-sensor-conf.dtsi" }; Example 3): (In case of Exynos5420 "with misplaced TRIMINFO register") tmu_cpu2: tmu@10068000 { compatible = "samsung,exynos5420-tmu-ext-triminfo"; reg = <0x10068000 0x100>, <0x1006c000 0x4>; interrupts = <0 184 0>; clocks = <&clock 318>, <&clock 318>; clock-names = "tmu_apbif", "tmu_triminfo_apbif"; #include "exynos4412-tmu-sensor-conf.dtsi" }; tmu_cpu3: tmu@1006c000 { compatible = "samsung,exynos5420-tmu-ext-triminfo"; reg = <0x1006c000 0x100>, <0x100a0000 0x4>; interrupts = <0 185 0>; clocks = <&clock 318>, <&clock 319>; clock-names = "tmu_apbif", "tmu_triminfo_apbif"; #include "exynos4412-tmu-sensor-conf.dtsi" }; tmu_gpu: tmu@100a0000 { compatible = "samsung,exynos5420-tmu-ext-triminfo"; reg = <0x100a0000 0x100>, <0x10068000 0x4>; interrupts = <0 215 0>; clocks = <&clock 319>, <&clock 318>; clock-names = "tmu_apbif", "tmu_triminfo_apbif"; #include "exynos4412-tmu-sensor-conf.dtsi" }; Note: For multi-instance tmu each instance should have an alias correctly numbered in "aliases" node. Example: aliases { tmuctrl0 = &tmuctrl_0; tmuctrl1 = &tmuctrl_1; tmuctrl2 = &tmuctrl_2; };