| Message ID | 1412026934-25947-1-git-send-email-drake@endlessm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi index 3d8c623..9994a44 100644 --- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi +++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi @@ -400,3 +400,8 @@ samsung,pin-drv = <0>; }; }; + +&tmu { + status = "okay"; + vtmu-supply = <&ldo10_reg>; +}; diff --git a/arch/arm/boot/dts/exynos4412.dtsi b/arch/arm/boot/dts/exynos4412.dtsi index 0f6ec93..ee58e7f 100644 --- a/arch/arm/boot/dts/exynos4412.dtsi +++ b/arch/arm/boot/dts/exynos4412.dtsi @@ -66,4 +66,14 @@ pmu_system_controller: system-controller@10020000 { compatible = "samsung,exynos4412-pmu", "syscon"; }; + + tmu: tmu@100C0000 { + compatible = "samsung,exynos4412-tmu"; + interrupt-parent = <&combiner>; + reg = <0x100C0000 0x100>; + interrupts = <2 4>; + clocks = <&clock CLK_TMU_APBIF>; + clock-names = "tmu_apbif"; + status = "disabled"; + }; };
The Exynos4412 has a Thermal Management Unit (TMU) which provides a temperature sensor and related functionality. This must be enabled on a per-board basis, as it requires a 100k resistance to ground on the XtsRES_EXT pin, as well as a 1.8V input on VDD18_TS pin. If that voltage is not supplied, the machine immediately reports a maximum temperature of 255C and triggers the thermal subsystem to shut down the system. This patch also enables the TMU on the ODROID boards via the appropriate power supply. Signed-off-by: Daniel Drake <drake@endlessm.com> --- arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 5 +++++ arch/arm/boot/dts/exynos4412.dtsi | 10 ++++++++++ 2 files changed, 15 insertions(+)