[RFC 1/2] ARM: dts: omap3: Add cpu trips and cooling map for omap3 family

[RFC 1/2] ARM: dts: omap3: Add cpu trips and cooling map for omap3 family

[Adam Ford]

The OMAP3530, AM3517 and DM3730 all show thresholds of 90C and 105C
depending on commercial or industrial temperature ratings.  This
patch expands the thermal information to the limits of 90 and 105
for alert and critical.

For boards who never use industrial temperatures, these can be
changed on their respective device trees with something like:

&cpu_alert0 {
	temperature = <85000>; /* millicelsius */
};

&cpu_crit {
	temperature = <90000>; /* millicelsius */
};

Signed-off-by: Adam Ford <aford173@gmail.com>

diff --git a/arch/arm/boot/dts/omap3-cpu-thermal.dtsi b/arch/arm/boot/dts/omap3-cpu-thermal.dtsi
index 235ecfd61e2d..11452590ea85 100644
--- a/arch/arm/boot/dts/omap3-cpu-thermal.dtsi
+++ b/arch/arm/boot/dts/omap3-cpu-thermal.dtsi
@@ -17,4 +17,25 @@ cpu_thermal: cpu_thermal {
 
 			/* sensor       ID */
 	thermal-sensors = <&bandgap     0>;
+
+	cpu_trips: trips {
+		cpu_alert0: cpu_alert {
+			temperature = <90000>; /* millicelsius */
+			hysteresis = <2000>; /* millicelsius */
+			type = "passive";
+		};
+		cpu_crit: cpu_crit {
+			temperature = <105000>; /* millicelsius */
+			hysteresis = <2000>; /* millicelsius */
+			type = "critical";
+		};
+	};
+
+	cpu_cooling_maps: cooling-maps {
+		map0 {
+			trip = <&cpu_alert0>;
+			cooling-device =
+				<&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+		};
+	};
 };
-- 
2.17.1

[RFC 2/2] ARM: omap3: Consolidate thermal references to common omap3

[Adam Ford]

Because the omap34xx, omap36xx and am3517 SoC's have the same
thermal junction limits, there is no need to duplicate the entry
multiple times.

This patch removes the thermal references from omap36xx and
omap34xx and pushes it into the common omap3.dtsi file with
the added benefit of enabling the thermal info on the AM3517.

Signed-off-by: Adam Ford <aford173@gmail.com>

diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 4043ecb38016..db9cafddbe69 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -44,6 +44,10 @@
 		};
 	};
 
+	thermal_zones: thermal-zones {
+		#include "omap3-cpu-thermal.dtsi"
+	};
+
 	pmu@54000000 {
 		compatible = "arm,cortex-a8-pmu";
 		reg = <0x54000000 0x800000>;
diff --git a/arch/arm/boot/dts/omap34xx.dtsi b/arch/arm/boot/dts/omap34xx.dtsi
index f572a477f74c..b80378d6e5c1 100644
--- a/arch/arm/boot/dts/omap34xx.dtsi
+++ b/arch/arm/boot/dts/omap34xx.dtsi
@@ -101,10 +101,6 @@
 			};
 		};
 	};
-
-	thermal_zones: thermal-zones {
-		#include "omap3-cpu-thermal.dtsi"
-	};
 };
 
 &ssi {
diff --git a/arch/arm/boot/dts/omap36xx.dtsi b/arch/arm/boot/dts/omap36xx.dtsi
index 6fb23ada1f64..ff2dca63a04e 100644
--- a/arch/arm/boot/dts/omap36xx.dtsi
+++ b/arch/arm/boot/dts/omap36xx.dtsi
@@ -140,10 +140,6 @@
 			};
 		};
 	};
-
-	thermal_zones: thermal-zones {
-		#include "omap3-cpu-thermal.dtsi"
-	};
 };
 
 /* OMAP3630 needs dss_96m_fck for VENC */
-- 
2.17.1