From 4aa6586a9720849527379c415d0977f0d5bcfcac Mon Sep 17 00:00:00 2001 From: Keerthy Date: Wed, 5 Apr 2023 16:53:27 -0500 Subject: [PATCH] arm64: dts: ti: j7200: Add VTM node VTM stands for Voltage Thermal Management. Add the thermal zones. Three sensors mapping to 3 thermal zones. MCU, MPU & Main domains respectively. Signed-off-by: Keerthy [bb@ti.com: rebased on v6.3-rc1] Signed-off-by: Bryan Brattlof Link: https://lore.kernel.org/r/20230405215328.3755561-7-bb@ti.com Signed-off-by: Vignesh Raghavendra --- .../boot/dts/ti/k3-j7200-mcu-wakeup.dtsi | 8 ++++ arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi | 47 +++++++++++++++++++ arch/arm64/boot/dts/ti/k3-j7200.dtsi | 2 + 3 files changed, 57 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi index 331b4e482e41..6a26758af7be 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi @@ -459,4 +459,12 @@ rng: rng@40910000 { status = "disabled"; /* Used by OP-TEE */ }; }; + + wkup_vtm0: temperature-sensor@42040000 { + compatible = "ti,j7200-vtm"; + reg = <0x00 0x42040000 0x00 0x350>, + <0x00 0x42050000 0x00 0x350>; + power-domains = <&k3_pds 154 TI_SCI_PD_EXCLUSIVE>; + #thermal-sensor-cells = <1>; + }; }; diff --git a/arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi new file mode 100644 index 000000000000..e7e3a643a6f0 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include + +thermal_zones: thermal-zones { + mcu_thermal: mcu-thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <500>; /* milliseconds */ + thermal-sensors = <&wkup_vtm0 0>; + + trips { + wkup_crit: wkup-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; + }; + + mpu_thermal: mpu-thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <500>; /* milliseconds */ + thermal-sensors = <&wkup_vtm0 1>; + + trips { + mpu_crit: mpu-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; + }; + + main_thermal: main-thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <500>; /* milliseconds */ + thermal-sensors = <&wkup_vtm0 2>; + + trips { + c7x_crit: c7x-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; + }; +}; diff --git a/arch/arm64/boot/dts/ti/k3-j7200.dtsi b/arch/arm64/boot/dts/ti/k3-j7200.dtsi index f1836ec8e934..6c96759e8752 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j7200.dtsi @@ -171,6 +171,8 @@ cbass_mcu_wakeup: bus@28380000 { <0x07 0x00000000 0x07 0x00000000 0x01 0x00000000>; /* FSS OSPI1 data region 3 */ }; }; + + #include "k3-j7200-thermal.dtsi" }; /* Now include the peripherals for each bus segments */