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/linux/drivers/thermal/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
12 Each thermal zone contains its own temperature, trip points,
25 zones discovery, temperature readings and events such as
27 change. It is recommended to enable the feature.
47 Say Y to add a debugfs-based thermal core testing facility.
53 int "Emergency poweroff delay in milli-seconds"
130 Select this if you want to control temperature based on
145 bool "Fair-share thermal governor"
147 Enable this to manage platform thermals using fair-share governor.
152 Enable this to manage platform thermals using a simple linear
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/linux/Documentation/devicetree/bindings/hwmon/
H A Dmax6697.txt4 - compatible:
16 - reg: I2C address
20 - smbus-timeout-disable
23 - extended-range-enable
24 Only valid for MAX6581. Set to enable extended temperature range.
25 Extended temperature will be disabled if not specified.
26 - beta-compensation-enable
27 Only valid for MAX6693 and MX6694. Set to enable beta compensation on
28 remote temperature channel 1.
30 - alert-mask
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H A Dti,tmp401.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: TMP401, TPM411 and TMP43x temperature sensor
10 - Guenter Roeck <linux@roeck-us.net>
13 ±1°C Remote and Local temperature sensor
24 - ti,tmp401
25 - ti,tmp411
26 - ti,tmp431
27 - ti,tmp432
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/linux/Documentation/ABI/testing/
H A Dsysfs-class-hwmon16 The contents of the label are free-form.
135 this voltage channel is being used for, and user-space
137 user-space.
143 Enable or disable the sensors.
145 When disabled the sensor read will return -ENODATA.
147 - 1: Enable
148 - 0: Disable
156 - 1: Failed
157 - 0: Ok
262 Only makes sense if the chip supports closed-loop fan speed
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H A Dsysfs-driver-w1_therm5 (RW) read or write TH and TL (Temperature High an Low) alarms.
7 (typical -55 degC to 125 degC), if not values will be trimmed
11 master level, refer to Documentation/w1/w1-generic.rst for
41 * '-xx': xx is kernel error when reading power status
55 values after power-on. Read or write are :
59 * '-xx': xx is kernel error when reading the resolution
62 Some DS18B20 clones are fixed in 12-bit resolution, so the
69 What: /sys/bus/w1/devices/.../temperature
73 (RO) return the temperature in 1/1000 degC.
76 return the temperature computed when the bulk read
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/linux/Documentation/ABI/stable/
H A Dsysfs-driver-firmware-zynqmp1 What: /sys/devices/platform/firmware\:zynqmp-firmware/ggs*
11 The register is reset during system or power-on
17 # cat /sys/devices/platform/firmware\:zynqmp-firmware/ggs0
18 # echo <value> > /sys/devices/platform/firmware\:zynqmp-firmware/ggs0
22 # cat /sys/devices/platform/firmware\:zynqmp-firmware/ggs0
23 # echo 0x1234ABCD > /sys/devices/platform/firmware\:zynqmp-firmware/ggs0
27 What: /sys/devices/platform/firmware\:zynqmp-firmware/pggs*
38 This register is only reset by the power-on reset
46 # cat /sys/devices/platform/firmware\:zynqmp-firmware/pggs0
47 # echo <value> > /sys/devices/platform/firmware\:zynqmp-firmware/pggs0
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/linux/Documentation/hwmon/
H A Dibmpowernv.rst11 -----------
13 This driver implements reading the platform sensors data like temperature/fan/
22 the DT maps to an attribute file in 'sysfs'. The node exports unique 'sensor-id'
26 -----------
31 ----------------
36 fanX_fault - 0: No fail condition
37 - 1: Failing fan
39 tempX_input Measured ambient temperature.
40 tempX_max Threshold ambient temperature for alert generation.
41 tempX_highest Historical maximum temperature
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H A Dsysfs-interface.rst5 through the sysfs interface. Since lm-sensors 3.0.0, libsensors is
6 completely chip-independent. It assumes that all the kernel drivers
10 This is a major improvement compared to lm-sensors 2.
14 temperature sensor is connected to the CPU, or that the second fan is on
22 For this reason, even if we aim at a chip-independent libsensors, it will
37 Up to lm-sensors 3.0.0, libsensors looks for hardware monitoring attributes
38 in the "physical" device directory. Since lm-sensors 3.0.1, attributes found
48 types for sensor chips are "in" (voltage), "temp" (temperature) and
61 to cause an alarm) is chip-dependent.
69 ----------------
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H A Dmax31730.rst14 Author: Guenter Roeck <linux@roeck-us.net>
18 -----------
22 The MAX31730 temperature sensor monitors its own temperature and the
23 temperatures of three external diode-connected transistors. The operating
25 for high series resistance in circuit-board traces and the external thermal
26 diode, while beta compensation corrects for temperature-measurement
27 errors due to low-beta sensing transistors.
31 -------------
34 temp[1-4]_enable RW Temperature enable/disable
35 Set to 0 to enable channel, 0 to disable
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H A Dpc87360.rst22 -----------------
27 - 0: None
28 - **1**: Forcibly enable internal voltage and temperature channels,
30 - 2: Forcibly enable all voltage and temperature channels, except in9
31 - 3: Forcibly enable all voltage and temperature channels, including in9
36 Also note that for the PC87366, initialization levels 2 and 3 don't enable
37 all temperature channels, because some of them share pins with each other,
42 -----------
56 PC87360 - 2 2 - 0xE1
57 PC87363 - 2 2 - 0xE8
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H A Dlm93.rst10 Addresses scanned: I2C 0x2c-0x2e
18 Addresses scanned: I2C 0x2c-0x2e
24 - Mark M. Hoffman <mhoffman@lightlink.com>
25 - Ported to 2.6 by Eric J. Bowersox <ericb@aspsys.com>
26 - Adapted to 2.6.20 by Carsten Emde <ce@osadl.org>
27 - Modified for mainline integration by Hans J. Koch <hjk@hansjkoch.de>
30 -----------------
33 Set to non-zero to force some initializations (default is 0).
38 Configures in7 and in8 limit type, where 0 means absolute and non-zero
54 --------------------
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H A Ddme1737.rst18 Addresses scanned: none, address read from Super-I/O config space
34 Addresses scanned: none, address read from Super-I/O config space
43 -----------------
52 Include non-standard LPC addresses 0x162e and 0x164e
55 - VIA EPIA SN18000
59 -----------
63 and SCH5127 Super-I/O chips. These chips feature monitoring of 3 temp sensors
64 temp[1-3] (2 remote diodes and 1 internal), 8 voltages in[0-7] (7 external and
65 1 internal) and up to 6 fan speeds fan[1-6]. Additionally, the chips implement
66 up to 5 PWM outputs pwm[1-3,5-6] for controlling fan speeds both manually and
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H A Dw83791d.rst10 Addresses scanned: I2C 0x2c - 0x2f
12 Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83791D_W83791Gb.pdf
22 - Frodo Looijaard <frodol@dds.nl>,
23 - Philip Edelbrock <phil@netroedge.com>,
24 - Mark Studebaker <mdsxyz123@yahoo.com>
28 - Shane Huang (Winbond),
29 - Rudolf Marek <r.marek@assembler.cz>
33 - Sven Anders <anders@anduras.de>
34 - Marc Hulsman <m.hulsman@tudelft.nl>
37 -----------------
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H A Dsht15.rst35 http://www.sensirion.ch/en/pdf/product_information/Datasheet-humidity-sensor-SHT1x.pdf
38 -----------
40 The SHT10, SHT11, SHT15, SHT71, and SHT75 are humidity and temperature
45 Supported resolutions for the measurements are 14 bits for temperature and 12
46 bits for humidity, or 12 bits for temperature and 8 bits for humidity.
62 -------------
65 set it to true to enable CRC validation of the readings (default to false).
72 ---------------
75 temp1_input temperature input
77 heater_enable write 1 in this attribute to enable the on-chip heater,
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/linux/Documentation/w1/slaves/
H A Dw1_therm.rst7 * Maxim ds18*20 based temperature sensors.
8 * Maxim ds1825 based temperature sensors.
9 * GXCAS GX20MH01 temperature sensor.
16 -----------
18 w1_therm provides basic temperature conversion for ds18*20, ds28ea00, GX20MH01
32 read sequence will initiate a temperature conversion, then provide two
36 displays the retained values along with a temperature in millidegrees
39 Alternatively, temperature can be read using ``temperature`` sysfs, it
40 returns only the temperature in millidegrees Centigrade.
49 -1 if at least one sensor still in conversion, 1 if conversion is complete
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/linux/drivers/thermal/intel/
H A Dintel_pch_thermal.c1 // SPDX-License-Identifier: GPL-2.0-only
2 /* intel_pch_thermal.c - Intel PCH Thermal driver
28 #define PCH_THERMAL_DID_CNL_H 0xA379 /* CNL-H PCH */
29 #define PCH_THERMAL_DID_CNL_LP 0x02F9 /* CNL-LP PCH */
30 #define PCH_THERMAL_DID_CML_H 0X06F9 /* CML-H PCH */
34 /* Wildcat Point-LP PCH Thermal registers */
35 #define WPT_TEMP 0x0000 /* Temperature */
38 #define WPT_TSEL 0x08 /* Thermal Sensor Enable and Lock */
39 #define WPT_TSREL 0x0A /* Thermal Sensor Report Enable and Lock */
52 /* Wildcat Point-LP PCH Thermal Register bit definitions */
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/linux/drivers/gpu/drm/amd/pm/powerplay/hwmgr/
H A Dpptable_v1_0.h56 #define ATOM_TONGA_PP_PLATFORM_CAP_DISABLE_VOLTAGE_ISLAND 0x8 /* Enable the option …
70 #define ATOM_TONGA_PP_PLATFORM_CAP_BACO 0x20000 /* Enable to indicate…
72 #define ATOM_TONGA_PP_PLATFORM_CAP_OUTPUT_THERMAL2GPIO17 0x100000 /* Enable to indicate…
73 #define ATOM_TONGA_PP_PLATFORM_COMBINE_PCC_WITH_THERMAL_SIGNAL 0x1000000 /* Enable to indicate…
191 …UCHAR ucCKSVOffsetandDisable; /* Bits 0~6: Voltage offset for CKS, Bit 7: Disable/enable …
206 …UCHAR ucCKSVOffsetandDisable; /* Bits 0~6: Voltage offset for CKS, Bit 7: Disable/enable for th…
245 ULONG ulDClk; /* UVD D-clock */
246 ULONG ulVClk; /* UVD V-clock */
273 UCHAR ucTHyst; /* Temperature hysteresis. Integer. */
274 …USHORT usTMin; /* The temperature, in 0.01 centigrades, below which we just run at a minim…
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/linux/Documentation/driver-api/thermal/
H A Dexynos_thermal_emulation.rst10 -----------
14 TMU's operation. User can set temperature manually with software code
15 and TMU will read current temperature from user value not from sensor's
23 When you input any temperature you want to update to sysfs node, it
24 automatically enable emulation mode and current temperature will be
28 delay of changing temperature. However, this node only uses same delay
33 next temperature, then you have to enable emulation mode at the same
49 | +-----------
51 | +-------------| |
54 20 | | | +----------
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/linux/Documentation/devicetree/bindings/power/supply/
H A Dsummit,smb347-charger.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/power/supply/summit,smb347-charger.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - David Heidelberg <david@ixit.cz>
11 - Dmitry Osipenko <digetx@gmail.com>
16 - summit,smb345
17 - summit,smb347
18 - summit,smb358
26 monitored-battery:
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/linux/drivers/thermal/intel/int340x_thermal/
H A Dplatform_temperature_control.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * processor thermal device platform temperature controls
8 * Platform temperature controls hardware interface
18 * 7:0 TARGET_TEMP : Target temperature limit to which the control
20 * 8:8 ENABLE: Read current enable status of the feature or enable
23 * 7 graceful, favors performance at the expense of temperature
31 * there will be no throttling. 0 - all levels of throttling allowed
32 * including survivability actions. 255 - no throttling allowed.
33 * 31:24 TEMPERATURE_OVERRIDE: Allows SW to override the input temperature.
34 * hardware will use this value instead of the sensor temperature.
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/linux/Documentation/devicetree/bindings/regulator/
H A Dmaxim,max8973.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Krzysztof Kozlowski <krzk@kernel.org>
13 - $ref: regulator.yaml#
18 - maxim,max8973
19 - maxim,max77621
21 junction-warn-millicelsius:
23 Junction warning temperature threshold in millicelsius. If die
24 temperature crosses this level then device generates the warning
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/linux/arch/arm/boot/dts/nuvoton/
H A Dnuvoton-npcm730-kudo.dts1 // SPDX-License-Identifier: GPL-2.0
4 /dts-v1/;
5 #include "nuvoton-npcm730.dtsi"
7 #include <dt-bindings/gpio/gpio.h>
41 stdout-path = &serial3;
48 iio-hwmon {
49 compatible = "iio-hwmon";
50 io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>,
55 compatible = "nuvoton,npcm750-jtag-master";
56 #address-cells = <1>;
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/linux/drivers/ntb/hw/idt/
H A Dntb_hw_idt.h7 * Copyright (C) 2016-2018 T-Platforms JSC All Rights Reserved.
36 * IDT PCIe-switch NTB Linux driver
39 * Serge Semin <fancer.lancer@gmail.com>, <Sergey.Semin@t-platforms.ru>
55 * the supported IDT PCIe-switches
66 * IDT PCIe-switches device IDs
78 * NT-function Configuration Space registers
79 * NOTE 1) The IDT PCIe-switch internal data is little-endian
83 * with byte-enables corresponding to their native size or
86 * So to simplify the driver code, there is only DWORD-sized read/write
107 /* IDT Proprietary NT-port-specific registers */
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/linux/arch/riscv/boot/dts/sophgo/
H A Dsg2042-milkv-pioneer.dts1 // SPDX-License-Identifier: GPL-2.0 OR MIT
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/input/input.h>
12 model = "Milk-V Pioneer";
16 stdout-path = "serial0";
19 gpio-power {
20 compatible = "gpio-keys";
22 key-power {
26 linux,input-type = <EV_KEY>;
27 debounce-interval = <100>;
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/linux/drivers/thermal/qcom/
H A Dtsens.c1 // SPDX-License-Identifier: GPL-2.0
11 #include <linux/nvmem-consumer.h>
26 * struct tsens_irq_data - IRQ status and temperature violations
28 * @up_thresh: upper threshold temperature value
32 * @low_thresh: lower threshold temperature value
36 * @crit_thresh: critical threshold temperature value
40 * Structure containing data about temperature threshold settings and
81 if (priv->num_sensors > MAX_SENSORS) in tsens_read_calibration()
82 return -EINVAL; in tsens_read_calibration()
88 ret = nvmem_cell_read_variable_le_u32(priv->dev, name, &mode); in tsens_read_calibration()
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