Add a device node for the Thermal Sensor/Chip Internal Voltage Monitor
in the R-Car M3-W+ (R8A77961) SoC, and describe the thermal zones.
According to the R-Car Gen3 Hardware Manual Errata for Revision 2.00 of
Jan 31, 2020, the thermal parameters for R-Car M3-W+ are the same as for
R-Car M3-W.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
It's a bit cold in Magnus' lab:
/ # grep . /sys/devices/virtual/thermal/thermal_zone?/temp
/sys/devices/virtual/thermal/thermal_zone0/temp:17000
/sys/devices/virtual/thermal/thermal_zone1/temp:19000
/sys/devices/virtual/thermal/thermal_zone2/temp:18000
---
arch/arm64/boot/dts/renesas/r8a77961.dtsi | 80 +++++++++++++++++++++++
1 file changed, 80 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a77961.dtsi b/arch/arm64/boot/dts/renesas/r8a77961.dtsi
index b6915319a61c8bf0..2f016458f57d3a33 100644
--- a/arch/arm64/boot/dts/renesas/r8a77961.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77961.dtsi
@@ -474,6 +474,20 @@
#power-domain-cells = <1>;
};
+ tsc: thermal@e6198000 {
+ compatible = "renesas,r8a77961-thermal";
+ reg = <0 0xe6198000 0 0x100>,
+ <0 0xe61a0000 0 0x100>,
+ <0 0xe61a8000 0 0x100>;
+ interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 522>;
+ power-domains = <&sysc R8A77961_PD_ALWAYS_ON>;
+ resets = <&cpg 522>;
+ #thermal-sensor-cells = <1>;
+ };
+
intc_ex: interrupt-controller@e61c0000 {
#interrupt-cells = <2>;
interrupt-controller;
@@ -785,6 +799,7 @@
status = "disabled";
};
+
pwm1: pwm@e6e31000 {
reg = <0 0xe6e31000 0 8>;
#pwm-cells = <2>;
@@ -1073,6 +1088,71 @@
};
};
+ thermal-zones {
+ sensor_thermal1: sensor-thermal1 {
+ polling-delay-passive = <250>;
+ polling-delay = <1000>;
+ thermal-sensors = <&tsc 0>;
+ sustainable-power = <3874>;
+
+ trips {
+ sensor1_crit: sensor1-crit {
+ temperature = <120000>;
+ hysteresis = <1000>;
+ type = "critical";
+ };
+ };
+ };
+
+ sensor_thermal2: sensor-thermal2 {
+ polling-delay-passive = <250>;
+ polling-delay = <1000>;
+ thermal-sensors = <&tsc 1>;
+ sustainable-power = <3874>;
+
+ trips {
+ sensor2_crit: sensor2-crit {
+ temperature = <120000>;
+ hysteresis = <1000>;
+ type = "critical";
+ };
+ };
+ };
+
+ sensor_thermal3: sensor-thermal3 {
+ polling-delay-passive = <250>;
+ polling-delay = <1000>;
+ thermal-sensors = <&tsc 2>;
+ sustainable-power = <3874>;
+
+ cooling-maps {
+ map0 {
+ trip = <&target>;
+ cooling-device = <&a57_0 2 4>;
+ contribution = <1024>;
+ };
+ map1 {
+ trip = <&target>;
+ cooling-device = <&a53_0 0 2>;
+ contribution = <1024>;
+ };
+ };
+ trips {
+ target: trip-point1 {
+ temperature = <100000>;
+ hysteresis = <1000>;
+ type = "passive";
+ };
+
+ sensor3_crit: sensor3-crit {
+ temperature = <120000>;
+ hysteresis = <1000>;
+ type = "critical";
+ };
+ };
+ };
+ };
+
timer {
compatible = "arm,armv8-timer";
interrupts-extended = <&gic GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>,
--
2.17.1
