From: Keerthy <j-keerthy@xxxxxx>
VTM stands for Voltage Thermal Management. Add the thermal zones.
Five sensors mapping ton 5 thermal zones. WKUP, MPU, C7x, GPU & R5F
respectively.
Signed-off-by: Keerthy <j-keerthy@xxxxxx>
[bb@xxxxxx: rebased on v6.3-rc1]
Signed-off-by: Bryan Brattlof <bb@xxxxxx>
---
.../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi | 9 +++
arch/arm64/boot/dts/ti/k3-j721e-thermal.dtsi | 75 +++++++++++++++++++
arch/arm64/boot/dts/ti/k3-j721e.dtsi | 2 +
3 files changed, 86 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-j721e-thermal.dtsi
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
index 24e8125db8c44..50688e55e6a5a 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
@@ -458,4 +458,13 @@ mcu_spi2: spi@40320000 {
clocks = <&k3_clks 276 0>;
status = "disabled";
};
+
+ wkup_vtm0: temperature-sensor@42040000 {
+ compatible = "ti,j721e-vtm";
+ reg = <0x00 0x42040000 0x00 0x350>,
+ <0x00 0x42050000 0x00 0x350>,
+ <0x00 0x43000300 0x00 0x10>;
+ power-domains = <&k3_pds 154 TI_SCI_PD_EXCLUSIVE>;
+ #thermal-sensor-cells = <1>;
+ };
};
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-thermal.dtsi
new file mode 100644
index 0000000000000..c2523279001bf
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j721e-thermal.dtsi
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/thermal/thermal.h>
+
+thermal_zones: thermal-zones {
+ wkup_thermal: wkup-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";
+ };
+ };
+ };
+
+ c7x_thermal: c7x-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";
+ };
+ };
+ };
+
+ gpu_thermal: gpu-thermal {
+ polling-delay-passive = <250>; /* milliseconds */
+ polling-delay = <500>; /* milliseconds */
+ thermal-sensors = <&wkup_vtm0 3>;
+
+ trips {
+ gpu_crit: gpu-crit {
+ temperature = <125000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = "critical";
+ };
+ };
+ };
+
+ r5f_thermal: r5f-thermal {
+ polling-delay-passive = <250>; /* milliseconds */
+ polling-delay = <500>; /* milliseconds */
+ thermal-sensors = <&wkup_vtm0 4>;
+
+ trips {
+ r5f_crit: r5f-crit {
+ temperature = <125000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = "critical";
+ };
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/ti/k3-j721e.dtsi b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
index b912143b6a110..154eff06e7b75 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
@@ -184,6 +184,8 @@ cbass_mcu_wakeup: bus@28380000 {
<0x07 0x00000000 0x07 0x00000000 0x01 0x00000000>; /* FSS OSPI1 data region 3*/
};
};
+
+ #include "k3-j721e-thermal.dtsi"
};
/* Now include the peripherals for each bus segments */
--
2.40.0
