[PATCH 10/11] arm64: dts: ti: k3-j721s2-mcu-wakeup: add VTM node
From: Bryan Brattlof <hidden>
Date: 2022-10-11 23:18:54
Also in:
linux-devicetree, linux-pm, lkml
Subsystem:
arm/texas instruments k3 architecture, the rest · Maintainers:
Nishanth Menon, Vignesh Raghavendra, Tero Kristo, Linus Torvalds
The j721s2 supports a single Voltage and Thermal Management (VTM) device located in the wakeup domain with seven associated temperature monitors located in various hot spots on the die. Signed-off-by: Bryan Brattlof <redacted> --- .../boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi | 8 ++ arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi | 103 ++++++++++++++++++ arch/arm64/boot/dts/ti/k3-j721s2.dtsi | 3 + 3 files changed, 114 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 4d1bfabd1313a..8287fd32c42f3 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi@@ -299,4 +299,12 @@ cpts@3d000 { ti,cpts-periodic-outputs = <2>; }; }; + + vtm0: temperature-sensor@42040000 { + compatible = "ti,j7200-vtm"; + reg = <0x0 0x42040000 0x0 0x350>, + <0x0 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..c51009536756e
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi@@ -0,0 +1,103 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <dt-bindings/thermal/thermal.h> + +thermal_zones: thermal-zones { + wkup0_thermal: wkup0-thermal { + polling-delay-passive = <250>; /* milliSeconds */ + polling-delay = <500>; /* milliSeconds */ + thermal-sensors = <&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 = <&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 = <&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 = <&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 = <&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 = <&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 = <&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 7b930a85a29d6..33ea52e28b24f 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2.dtsi@@ -161,6 +161,9 @@ cbass_mcu_wakeup: bus@28380000 { }; }; + + #include "k3-j721s2-thermal.dtsi" + }; /* Now include peripherals from each bus segment */
--
2.38.0
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