linux-kernel - [PATCH v4 3/3] arm64: dts: register Hi3660's thermal sensor

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Message-ID: <1503994666-13954-4-git-send-email-kevin.wangtao@hisilicon.com>
Date:   Tue, 29 Aug 2017 16:17:46 +0800
From:   Tao Wang <kevin.wangtao@...ilicon.com>
To:     <rui.zhang@...el.com>, <edubezval@...il.com>, <robh+dt@...nel.org>,
        <mark.rutland@....com>, <xuwei5@...ilicon.com>,
        <catalin.marinas@....com>, <will.deacon@....com>
CC:     <leo.yan@...aro.org>, <kevin.wangtao@...aro.org>,
        <linux-pm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <sunzhaosheng@...ilicon.com>, <gengyanping@...ilicon.com>
Subject: [PATCH v4 3/3] arm64: dts: register Hi3660's thermal sensor

From: Tao Wang <kevin.wangtao@...aro.org>

Bind thermal sensor driver for Hi3660.

Signed-off-by: Tao Wang <kevin.wangtao@...aro.org>
Signed-off-by: Leo Yan <leo.yan@...aro.org>
---
 arch/arm64/boot/dts/hisilicon/hi3660.dtsi    | 14 +++++++++++++
 include/dt-bindings/thermal/hi3660-thermal.h | 31 ++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 include/dt-bindings/thermal/hi3660-thermal.h

diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index c6a1961..1ee6084 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -6,6 +6,7 @@
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/clock/hi3660-clock.h>
+#include <dt-bindings/thermal/hi3660-thermal.h>
 
 / {
 	compatible = "hisilicon,hi3660";
@@ -848,5 +849,18 @@
 				     &sdio_cfg_func>;
 			status = "disabled";
 		};
+
+		tsensor: tsensor@...30000 {
+			compatible = "hisilicon,hi3660-tsensor";
+			#address-cells = <2>;
+			#size-cells = <2>;
+			reg = <0x0 0xfff3001c 0x0 0x4>,
+				<0x0 0xfff3005c 0x0 0x4>,
+				<0x0 0xfff3009c 0x0 0x4>;
+			hisi,tsensors = <HISI_MAX_TSENSORS>;
+			hisi,coef = <165000 (-40000)>;
+			hisi,adc-range = <0x74 0x39A>;
+			#thermal-sensor-cells = <1>;
+		};
 	};
 };
diff --git a/include/dt-bindings/thermal/hi3660-thermal.h b/include/dt-bindings/thermal/hi3660-thermal.h
new file mode 100644
index 0000000..d9d9b6a
--- /dev/null
+++ b/include/dt-bindings/thermal/hi3660-thermal.h
@@ -0,0 +1,31 @@
+/*
+ *  Copyright (c) 2017 Hisilicon Limited.
+ *  Copyright (c) 2017 Linaro Limited.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __DTS_HI3660_THERMAL_H
+#define __DTS_HI3660_THERMAL_H
+
+/* sensor id */
+#define LITTLE_CPU_TEMP		0
+#define BIG_CPU_TEMP		1
+#define GPU_TEMP		2
+#define MAX_TEMP		3
+#define AVG_TEMP		4
+
+#define HISI_MAX_TSENSORS		3
+#define THERMAL_NO_LIMIT		(~0)
+
+#endif
-- 
2.8.1