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arm64: dts: ti: j7200: Add VTM node

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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 <j-keerthy@ti.com>
[bb@ti.com: rebased on v6.3-rc1]
Signed-off-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20230405215328.3755561-7-bb@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Keerthy 2023-04-05 16:53:27 -05:00 committed by Vignesh Raghavendra
parent 8fb4e87c55
commit 4aa6586a97
3 changed files with 57 additions and 0 deletions
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8
arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
View file

@ -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>;
};
};

47
arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi Normal file
View file

@ -0,0 +1,47 @@
// SPDX-License-Identifier: GPL-2.0
#include <dt-bindings/thermal/thermal.h>
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";
};
};
};
};

2
arch/arm64/boot/dts/ti/k3-j7200.dtsi
View file

@ -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 */