From d148e3fe52c855b1709ed031eff6e63e87ad0372 Mon Sep 17 00:00:00 2001 From: Keerthy Date: Wed, 5 Apr 2023 16:53:28 -0500 Subject: [PATCH] arm64: dts: ti: j721s2: Add VTM node VTM stands for Voltage Thermal Management. Add the thermal zones. Six sensors mapping to six thermal zones. Main0, Main1, Main2, Main3, WKUP1 & WKUP2 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/20230405215328.3755561-8-bb@ti.com Signed-off-by: Vignesh Raghavendra --- .../boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi | 8 ++ arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi | 101 ++++++++++++++++++ arch/arm64/boot/dts/ti/k3-j721s2.dtsi | 4 + 3 files changed, 113 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi index 6e981fe4727eb..9c6bb6db59f83 100644 --- a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi @@ -423,4 +423,12 @@ status = "disabled"; /* Needs pinmux */ }; }; + + wkup_vtm0: temperature-sensor@42040000 { + compatible = "ti,j7200-vtm"; + reg = <0x00 0x42040000 0x0 0x350>, + <0x00 0x42050000 0x0 0x350>; + power-domains = <&k3_pds 154 TI_SCI_PD_SHARED>; + #thermal-sensor-cells = <1>; + }; }; diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi new file mode 100644 index 0000000000000..f7b1a15b8fa0a --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi @@ -0,0 +1,101 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include + +wkup0_thermal: wkup0-thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <500>; /* milliseconds */ + thermal-sensors = <&wkup_vtm0 0>; + + trips { + wkup0_crit: wkup0-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; +}; + +wkup1_thermal: wkup1-thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <500>; /* milliseconds */ + thermal-sensors = <&wkup_vtm0 1>; + + trips { + wkup1_crit: wkup1-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; +}; + +main0_thermal: main0-thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <500>; /* milliseconds */ + thermal-sensors = <&wkup_vtm0 2>; + + trips { + main0_crit: main0-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; +}; + +main1_thermal: main1-thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <500>; /* milliseconds */ + thermal-sensors = <&wkup_vtm0 3>; + + trips { + main1_crit: main1-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; +}; + +main2_thermal: main2-thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <500>; /* milliseconds */ + thermal-sensors = <&wkup_vtm0 4>; + + trips { + main2_crit: main2-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; +}; + +main3_thermal: main3-thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <500>; /* milliseconds */ + thermal-sensors = <&wkup_vtm0 5>; + + trips { + main3_crit: main3-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; +}; + +main4_thermal: main4-thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <500>; /* milliseconds */ + thermal-sensors = <&wkup_vtm0 6>; + + trips { + main4_crit: main4-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; +}; diff --git a/arch/arm64/boot/dts/ti/k3-j721s2.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2.dtsi index f3db277628cd0..2abeb857fde7e 100644 --- a/arch/arm64/boot/dts/ti/k3-j721s2.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721s2.dtsi @@ -164,6 +164,10 @@ }; }; + + thermal_zones: thermal-zones { + #include "k3-j721s2-thermal.dtsi" + }; }; /* Now include peripherals from each bus segment */ -- 2.30.2