[RESPIN/PATCH] arm64: dts: Add tmu node for exynos7
From: Alim Akhtar <alim.akhtar@samsung.com>
Date: 2016-02-25 09:04:54
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> --- Change log: * no changes, just sending back from my email id. .../boot/dts/exynos/exynos7-tmu-sensor-conf.dtsi | 25 +++++++++ .../arm64/boot/dts/exynos/exynos7-trip-points.dtsi | 55 ++++++++++++++++++++ arch/arm64/boot/dts/exynos/exynos7.dtsi | 20 +++++++ 3 files changed, 100 insertions(+) create mode 100644 arch/arm64/boot/dts/exynos/exynos7-tmu-sensor-conf.dtsi create mode 100644 arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi
diff --git a/arch/arm64/boot/dts/exynos/exynos7-tmu-sensor-conf.dtsi b/arch/arm64/boot/dts/exynos/exynos7-tmu-sensor-conf.dtsi
new file mode 100644
index 0000000..1d6dcf2
--- /dev/null
+++ b/arch/arm64/boot/dts/exynos/exynos7-tmu-sensor-conf.dtsi@@ -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>;
diff --git a/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi b/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi
new file mode 100644
index 0000000..3970545
--- /dev/null
+++ b/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi@@ -0,0 +1,55 @@ +/* + * 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"; + }; + /* HW Trip point */ + cpu-crit-0 { + temperature = <115000>; /* millicelsius */ + hysteresis = <0>; /* millicelsius */ + type = "critical"; + }; +};
diff --git a/arch/arm64/boot/dts/exynos/exynos7.dtsi b/arch/arm64/boot/dts/exynos/exynos7.dtsi
index c662f98..fc9d130 100644
--- a/arch/arm64/boot/dts/exynos/exynos7.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos7.dtsi@@ -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 at 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: atlas-thermal { + polling-delay-passive = <0>; /* milliseconds */ + polling-delay = <0>; /* milliseconds */ + thermal-sensors = <&tmuctrl_0>; + #include "exynos7-trip-points.dtsi" + }; + }; }; };
--
1.7.10.4