arm64: dts: meson: g12: Add minimal thermal zone

Add minimal thermal zone for two temperature sensor
One is located close to the DDR and the other one is
located close to the PLLs (between the CPU and GPU)

Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Tested-by: Christian Hewitt <christianshewitt@gmail.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Guillaume La Roque <glaroque@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
index f153194b9bf3a8fefb15e2d82b3920836229ae83..a063d49b9cb144ca2544854eec7434c777f2b6f9 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
@@ -10,6 +10,7 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/reset/amlogic,meson-g12a-reset.h>
+#include <dt-bindings/thermal/thermal.h>
 
 / {
        interrupt-parent = <&gic>;
@@ -119,6 +120,61 @@
                        status = "disabled";
                };
 
+               thermal-zones {
+                       cpu_thermal: cpu-thermal {
+                               polling-delay = <1000>;
+                               polling-delay-passive = <100>;
+                               thermal-sensors = <&cpu_temp>;
+
+                               trips {
+                                       cpu_passive: cpu-passive {
+                                               temperature = <85000>; /* millicelsius */
+                                               hysteresis = <2000>; /* millicelsius */
+                                               type = "passive";
+                                       };
+
+                                       cpu_hot: cpu-hot {
+                                               temperature = <95000>; /* millicelsius */
+                                               hysteresis = <2000>; /* millicelsius */
+                                               type = "hot";
+                                       };
+
+                                       cpu_critical: cpu-critical {
+                                               temperature = <110000>; /* millicelsius */
+                                               hysteresis = <2000>; /* millicelsius */
+                                               type = "critical";
+                                       };
+                               };
+                       };
+
+                       ddr_thermal: ddr-thermal {
+                               polling-delay = <1000>;
+                               polling-delay-passive = <100>;
+                               thermal-sensors = <&ddr_temp>;
+
+                               trips {
+                                       ddr_passive: ddr-passive {
+                                               temperature = <85000>; /* millicelsius */
+                                               hysteresis = <2000>; /* millicelsius */
+                                               type = "passive";
+                                       };
+
+                                       ddr_critical: ddr-critical {
+                                               temperature = <110000>; /* millicelsius */
+                                               hysteresis = <2000>; /* millicelsius */
+                                               type = "critical";
+                                       };
+                               };
+
+                               cooling-maps {
+                                       map {
+                                               trip = <&ddr_passive>;
+                                               cooling-device = <&mali THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+                                       };
+                               };
+                       };
+               };
+
                ethmac: ethernet@ff3f0000 {
                        compatible = "amlogic,meson-axg-dwmac",
                                     "snps,dwmac-3.70a",
@@ -2169,6 +2225,7 @@
                        assigned-clock-rates = <0>, /* Do Nothing */
                                               <800000000>,
                                               <0>; /* Do Nothing */
+                       #cooling-cells = <2>;
                };
        };