From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nishanth Menon Subject: [PATCH 1/3] ARM: dts: OMAP5+: separate the cpu thermal zone definition from omap4 Date: Fri, 20 Mar 2015 14:47:39 -0500 Message-ID: <1426880861-9266-2-git-send-email-nm@ti.com> References: <1426880861-9266-1-git-send-email-nm@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1426880861-9266-1-git-send-email-nm@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: Tony Lindgren , =?UTF-8?q?Beno=C3=AEt=20Cousson?= Cc: Eduardo Valentin , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-omap@vger.kernel.org, Keerthy , Tero Kristo , Nishanth Menon List-Id: devicetree@vger.kernel.org From: Tero Kristo 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 Signed-off-by: Nishanth Menon --- 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 + * + * 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 + +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