From: kongxinwei <kong.kongxinwei@xxxxxxxxxxxxx>
Dts includes two part: the first part is related with thermal sensor;
the second part is related with thermal zones, in this part it will
define the thermal zones and which sensor device should be bound to.
it also need specify the polling interval for every thermal zone.
Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx>
Signed-off-by: kongxinwei <kong.kongxinwei@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 124 ++++++++++++++++++++++++++++++
1 file changed, 124 insertions(+)
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
index 8ade3d9..eb465a6 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
@@ -6,6 +6,7 @@
#include <dt-bindings/clock/hi6220-clock.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/thermal/thermal.h>
/ {
compatible = "hisilicon,hi6220";
@@ -173,4 +174,127 @@
clock-names = "uartclk", "apb_pclk";
};
};
+
+ tsensor: tsensor@0,f7030700 {
+ compatible = "hisilicon,tsensor";
+ reg = <0x0 0xf7030700 0x0 0x1000>;
+ interrupts = <0 7 0x4>;
+ clocks = <&sys_ctrl HI6220_TSENSOR_CLK>;
+ clock-names = "thermal_clk";
+ #thermal-sensor-cells = <1>;
+ };
+
+ thermal-zones {
+ local: local {
+ /* milliseconds */
+ polling-delay-passive = <1000>;
+ /* milliseconds */
+ polling-delay = <5000>;
+
+ /* sensor ID */
+ thermal-sensors = <&tsensor 0>;
+
+ trips {
+ local_alert: local_alert {
+ /* millicelsius */
+ temperature = <70000>;
+ /* millicelsius */
+ hysteresis = <2000>;
+ type = "passive";
+ };
+ local_crit: local_crit {
+ temperature = <90000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ /* There are currently no cooling maps
+ because there are no cooling devices */
+ };
+ };
+
+ cluster1: cluster1 {
+ polling-delay-passive = <1000>;
+ polling-delay = <5000>;
+
+ /* sensor ID */
+ thermal-sensors = <&tsensor 1>;
+
+ trips {
+ cluster1_alert: cluster1_alert {
+ temperature = <70000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+ cluster1_crit: cluster1_crit {
+ temperature = <90000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ /* There are currently no cooling maps
+ because there are no cooling devices */
+ };
+ };
+
+ cluster0: cluster0 {
+ polling-delay-passive = <1000>;
+ polling-delay = <5000>;
+
+ /* sensor ID */
+ thermal-sensors = <&tsensor 2>;
+
+ trips {
+ cluster0_alert: cluster0_alert {
+ temperature = <70000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+ cluster0_crit: cluster0_crit {
+ temperature = <90000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&cluster0_alert>;
+ cooling-device =
+ <&cpu0 THERMAL_NO_LIMIT
+ THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+
+ gpu: gpu {
+ polling-delay-passive = <1000>;
+ polling-delay = <5000>;
+
+ /* sensor ID */
+ thermal-sensors = <&tsensor 3>;
+
+ trips {
+ gpu_alert: gpu_alert {
+ temperature = <70000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+ gpu_crit: gpu_crit {
+ temperature = <90000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ /* There are currently no cooling maps
+ because there are no cooling devices */
+ };
+ };
+ };
};
--
1.9.1
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