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arm64: dts: exynos: Add TMU node for exynos7

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This patch adds TMU node, related temprature sensor and triping
point data for Atlas cpu core found on exynos7 SoC.

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
This commit is contained in:
Alim Akhtar 2016-02-26 14:36:30 +05:30 committed by Krzysztof Kozlowski
parent f55532a0c0
commit fbfcf4bf1c
3 changed files with 99 additions and 0 deletions
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25
arch/arm64/boot/dts/exynos/exynos7-tmu-sensor-conf.dtsi Normal file
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@ -0,0 +1,25 @@
/*
* Device tree sources for Exynos7 TMU sensor configuration
*
* Copyright (c) 2016 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <dt-bindings/thermal/thermal_exynos.h>
#thermal-sensor-cells = <0>;
samsung,tmu_gain = <9>;
samsung,tmu_reference_voltage = <17>;
samsung,tmu_noise_cancel_mode = <4>;
samsung,tmu_efuse_value = <75>;
samsung,tmu_min_efuse_value = <15>;
samsung,tmu_max_efuse_value = <100>;
samsung,tmu_first_point_trim = <25>;
samsung,tmu_second_point_trim = <85>;
samsung,tmu_default_temp_offset = <50>;
samsung,tmu_cal_type = <TYPE_ONE_POINT_TRIMMING>;

54
arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi Normal file
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@ -0,0 +1,54 @@
/*
* Device tree sources for default Exynos7 thermal zone definition
*
* Copyright (c) 2016 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
trips {
cpu-alert-0 {
temperature = <75000>; /* millicelsius */
hysteresis = <10000>; /* millicelsius */
type = "passive";
};
cpu-alert-1 {
temperature = <80000>; /* millicelsius */
hysteresis = <10000>; /* millicelsius */
type = "passive";
};
cpu-alert-2 {
temperature = <85000>; /* millicelsius */
hysteresis = <10000>; /* millicelsius */
type = "passive";
};
cpu-alert-3 {
temperature = <90000>; /* millicelsius */
hysteresis = <10000>; /* millicelsius */
type = "passive";
};
cpu-alert-4 {
temperature = <95000>; /* millicelsius */
hysteresis = <10000>; /* millicelsius */
type = "passive";
};
cpu-alert-5 {
temperature = <100000>; /* millicelsius */
hysteresis = <10000>; /* millicelsius */
type = "passive";
};
cpu-alert-6 {
temperature = <110000>; /* millicelsius */
hysteresis = <10000>; /* millicelsius */
type = "passive";
};
cpu-crit-0 {
temperature = <115000>; /* millicelsius */
hysteresis = <0>; /* millicelsius */
type = "critical";
};
};

20
arch/arm64/boot/dts/exynos/exynos7.dtsi
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@ -27,6 +27,7 @@
pinctrl6 = &pinctrl_fsys0;
pinctrl7 = &pinctrl_fsys1;
pinctrl8 = &pinctrl_bus1;
tmuctrl0 = &tmuctrl_0;
};
cpus {
@ -538,6 +539,25 @@
clocks = <&clock_peric0 PCLK_PWM>;
clock-names = "timers";
};
tmuctrl_0: tmu@10060000 {
compatible = "samsung,exynos7-tmu";
reg = <0x10060000 0x200>;
interrupts = <0 108 0>;
clocks = <&clock_peris PCLK_TMU>,
<&clock_peris SCLK_TMU>;
clock-names = "tmu_apbif", "tmu_sclk";
#include "exynos7-tmu-sensor-conf.dtsi"
};
thermal-zones {
atlas_thermal: cluster0-thermal {
polling-delay-passive = <0>; /* milliseconds */
polling-delay = <0>; /* milliseconds */
thermal-sensors = <&tmuctrl_0>;
#include "exynos7-trip-points.dtsi"
};
};
};
};