linux-kernel - [PATCHv5 09/20] arm: dts: add omap4 CPU thermal data

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1384285582-16933-10-git-send-email-eduardo.valentin@ti.com>
Date:	Tue, 12 Nov 2013 15:46:11 -0400
From:	Eduardo Valentin <eduardo.valentin@...com>
To:	<swarren@...dotorg.org>, <pawel.moll@....com>,
	<mark.rutland@....com>, <ian.campbell@...rix.com>,
	<rob.herring@...xeda.com>, <linux@...ck-us.net>,
	<rui.zhang@...el.com>
CC:	<wni@...dia.com>, <grant.likely@...aro.org>,
	<durgadoss.r@...el.com>, <linux-pm@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <lm-sensors@...sensors.org>,
	<linux-kernel@...r.kernel.org>,
	Eduardo Valentin <eduardo.valentin@...com>,
	Benoît Cousson <bcousson@...libre.com>,
	Tony Lindgren <tony@...mide.com>,
	Russell King <linux@....linux.org.uk>,
	<linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCHv5 09/20] arm: dts: add omap4 CPU thermal data

This patch changes a dtsi file to contain the thermal data
for MPU domain on OMAP4 and later SoCs. This data will
enable the passive cooling with CPUfreq cooling device
at 100C and the system will do a thermal shutdown at 125C.

This thermal data can be reused across TI SoC devices.

Cc: "Benoît Cousson" <bcousson@...libre.com>
Cc: Tony Lindgren <tony@...mide.com>
Cc: Rob Herring <rob.herring@...xeda.com>
Cc: Pawel Moll <pawel.moll@....com>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Stephen Warren <swarren@...dotorg.org>
Cc: Ian Campbell <ian.campbell@...rix.com>
Cc: Russell King <linux@....linux.org.uk>
Cc: linux-omap@...r.kernel.org
Cc: devicetree@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@...com>
---
Change from v4:
- Using string constants instead of macros on trip types

 arch/arm/boot/dts/omap4-cpu-thermal.dtsi | 41 ++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 arch/arm/boot/dts/omap4-cpu-thermal.dtsi

diff --git a/arch/arm/boot/dts/omap4-cpu-thermal.dtsi b/arch/arm/boot/dts/omap4-cpu-thermal.dtsi
new file mode 100644
index 0000000..cb9458f
--- /dev/null
+++ b/arch/arm/boot/dts/omap4-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: Eduardo Valentin <eduardo.valentin@...com>
+ *
+ * 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 = <1000>; /* milliseconds */
+
+			/* sensor       ID */
+        thermal-sensors = <&bandgap     0>;
+
+        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";
+                };
+        };
+
+	cooling-maps {
+		map0 {
+			trip = <&cpu_alert0>;
+			cooling-device =
+				<&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+		};
+	};
+};
-- 
1.8.2.1.342.gfa7285d

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/