From: Tero Kristo <t-kristo@xxxxxx> OMAP4 has a finer counter granularity, which allows for a delay of 1000ms in the thermal zone polling intervals. OMAP5/DRA7 have different counter mechanism, which allows at maximum a 500ms timer. Adjust the cpu thermal zone accordingly for OMAP5/DRA7. Signed-off-by: Tero Kristo <t-kristo@xxxxxx> Signed-off-by: Nishanth Menon <nm@xxxxxx> --- arch/arm/boot/dts/omap5-cpu-thermal.dtsi | 41 ++++++++++++++++++++++++++++++ arch/arm/boot/dts/omap5.dtsi | 2 +- 2 files changed, 42 insertions(+), 1 deletion(-) create mode 100644 arch/arm/boot/dts/omap5-cpu-thermal.dtsi diff --git a/arch/arm/boot/dts/omap5-cpu-thermal.dtsi b/arch/arm/boot/dts/omap5-cpu-thermal.dtsi new file mode 100644 index 000000000000..4a6427c1e47e --- /dev/null +++ b/arch/arm/boot/dts/omap5-cpu-thermal.dtsi @@ -0,0 +1,41 @@ +/* + * Device Tree Source for OMAP4/5 SoC CPU thermal + * + * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/ + * Contact: Tero Kristo <t-kristo@xxxxxx> + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include <dt-bindings/thermal/thermal.h> + +cpu_thermal: cpu_thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <500>; /* milliseconds */ + + /* sensor ID */ + thermal-sensors = <&bandgap 0>; + + cpu_trips: trips { + cpu_alert0: cpu_alert { + temperature = <100000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "passive"; + }; + cpu_crit: cpu_crit { + temperature = <125000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "critical"; + }; + }; + + cpu_cooling_maps: cooling-maps { + map0 { + trip = <&cpu_alert0>; + cooling-device = + <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; +}; diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi index ddff674bd05e..e650d4eb59dd 100644 --- a/arch/arm/boot/dts/omap5.dtsi +++ b/arch/arm/boot/dts/omap5.dtsi @@ -67,7 +67,7 @@ }; thermal-zones { - #include "omap4-cpu-thermal.dtsi" + #include "omap5-cpu-thermal.dtsi" #include "omap5-gpu-thermal.dtsi" #include "omap5-core-thermal.dtsi" }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
