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authorChen-Yu Tsai <wens@csie.org>2015-01-12 12:34:06 +0800
committerMaxime Ripard <maxime.ripard@free-electrons.com>2015-01-21 09:59:10 +0100
commit32a5d2d170cc24e9c5398d2a9432899f8368ba5c (patch)
treee91622cd241dd2ba4227d0557567d21f5dff657c /arch/arm/boot/dts/sun5i-a13.dtsi
parentb6d34248b8485ef5dc51952bd5e72ca2b9226ff0 (diff)
downloadop-kernel-dev-32a5d2d170cc24e9c5398d2a9432899f8368ba5c.zip
op-kernel-dev-32a5d2d170cc24e9c5398d2a9432899f8368ba5c.tar.gz
ARM: dts: sun5i: Add cpu thermal zones to dtsi
The core temperature sensor now supports thermal zones. Add a thermal zone mapping for the cpus with passive cooling (cpufreq throttling). Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'arch/arm/boot/dts/sun5i-a13.dtsi')
-rw-r--r--arch/arm/boot/dts/sun5i-a13.dtsi34
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi
index 258ebdc..fd85720 100644
--- a/arch/arm/boot/dts/sun5i-a13.dtsi
+++ b/arch/arm/boot/dts/sun5i-a13.dtsi
@@ -13,6 +13,8 @@
#include "skeleton.dtsi"
+#include <dt-bindings/thermal/thermal.h>
+
#include <dt-bindings/dma/sun4i-a10.h>
#include <dt-bindings/pinctrl/sun4i-a10.h>
@@ -64,6 +66,38 @@
};
};
+ thermal-zones {
+ cpu_thermal {
+ /* milliseconds */
+ polling-delay-passive = <250>;
+ polling-delay = <1000>;
+ thermal-sensors = <&rtp>;
+
+ cooling-maps {
+ map0 {
+ trip = <&cpu_alert0>;
+ cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+
+ trips {
+ cpu_alert0: cpu_alert0 {
+ /* milliCelsius */
+ temperature = <850000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ cpu_crit: cpu_crit {
+ /* milliCelsius */
+ temperature = <100000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+ };
+ };
+
memory {
reg = <0x40000000 0x20000000>;
};
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