linux-kernel - [PATCH v7 3/5] ARM: dts: add RK3xxx CPU Thermal data

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Message-Id: <1411900693-30484-4-git-send-email-caesar.wang@rock-chips.com>
Date:	Sun, 28 Sep 2014 18:38:11 +0800
From:	Caesar Wang <caesar.wang@...k-chips.com>
To:	heiko@...ech.de, rui.zhang@...el.com, edubezval@...il.com
Cc:	dmitry.torokhov@...il.com, arnd@...db.de, zyf@...k-chips.com,
	dianders@...omium.org, linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-doc@...r.kernel.org, cf@...k-chips.com,
	dbasehore@...omium.org, huangtao@...k-chips.com,
	Caesar Wang <caesar.wang@...k-chips.com>
Subject: [PATCH v7 3/5] ARM: dts: add RK3xxx CPU Thermal data

This patch changes a dtsi file to contain the thermal data
on RK3288 and later SoCs. This data will
enable a thermal shutdown over 125C.

Signed-off-by: Caesar Wang <caesar.wang@...k-chips.com>
---
 arch/arm/boot/dts/rk3xxx-cpu-thermal.dtsi | 32 +++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 arch/arm/boot/dts/rk3xxx-cpu-thermal.dtsi

diff --git a/arch/arm/boot/dts/rk3xxx-cpu-thermal.dtsi b/arch/arm/boot/dts/rk3xxx-cpu-thermal.dtsi
new file mode 100644
index 0000000..8888f7e
--- /dev/null
+++ b/arch/arm/boot/dts/rk3xxx-cpu-thermal.dtsi
@@ -0,0 +1,32 @@
+/*
+ * Device Tree Source for RK3XXX SoC CPU thermal
+ *
+ * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * 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 = <500>; /* milliseconds */
+	polling-delay = <1000>; /* milliseconds */
+
+			/* sensor       ID */
+        thermal-sensors = <&tsadc     0>;
+
+        trips {
+                cpu_alert0: cpu_alert {
+                        temperature = <800000>; /* millicelsius */
+                        hysteresis = <2000>; /* millicelsius */
+                        type = "passive";
+                };
+                cpu_crit: cpu_crit {
+                        temperature = <125000>; /* millicelsius */
+                        hysteresis = <2000>; /* millicelsius */
+                        type = "critical";
+                };
+        };
+};
-- 
1.9.1


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