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/linux/Documentation/devicetree/bindings/iio/afe/
H A Dtemperature-transducer.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/afe/temperature-transducer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Temperature Transducer
10 - Liam Beguin <liambeguin@gmail.com>
13 A temperature transducer is a device that converts a thermal quantity
14 into any other physical quantity. This binding applies to temperature to
15 voltage (like the LTC2997), and temperature to current (like the AD590)
19 When an io-channel measures the output voltage of a temperature analog front
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/linux/Documentation/devicetree/bindings/hwmon/
H A Dbaikal,bt1-pvt.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/hwmon/baikal,bt1-pvt.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Baikal-T1 PVT Sensor
11 - Serge Semin <fancer.lancer@gmail.com>
14 Baikal-T1 SoC provides an embedded process, voltage and temperature
15 sensor to monitor an internal SoC environment (chip temperature, supply
17 which may cause the system instability and even damages. The IP-block
19 control wrapper, which provides a MMIO registers-based access to the
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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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/linux/arch/arm/boot/dts/amlogic/
H A Dmeson8b.dtsi1 // SPDX-License-Identifier: GPL-2.0 OR MIT
7 #include <dt-bindings/clock/meson8-ddr-clkc.h>
8 #include <dt-bindings/clock/meson8b-clkc.h>
9 #include <dt-bindings/gpio/meson8b-gpio.h>
10 #include <dt-bindings/power/meson8-power.h>
11 #include <dt-bindings/reset/amlogic,meson8b-reset.h>
12 #include <dt-bindings/reset/amlogic,meson8b-clkc-reset.h>
13 #include <dt-bindings/thermal/thermal.h>
18 #address-cells = <1>;
19 #size-cells = <0>;
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H A Dmeson8.dtsi1 // SPDX-License-Identifier: GPL-2.0 OR MIT
6 #include <dt-bindings/clock/meson8-ddr-clkc.h>
7 #include <dt-bindings/clock/meson8b-clkc.h>
8 #include <dt-bindings/gpio/meson8-gpio.h>
9 #include <dt-bindings/power/meson8-power.h>
10 #include <dt-bindings/reset/amlogic,meson8b-clkc-reset.h>
11 #include <dt-bindings/reset/amlogic,meson8b-reset.h>
12 #include <dt-bindings/thermal/thermal.h>
20 #address-cells = <1>;
21 #size-cells = <0>;
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/linux/arch/arm/boot/dts/samsung/
H A Dexynos4210.dtsi1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
7 * Copyright (c) 2010-2011 Linaro Ltd.
20 #include "exynos4-cpu-thermal.dtsi"
31 bus_acp: bus-acp {
32 compatible = "samsung,exynos-bus";
34 clock-names = "bus";
35 operating-points-v2 = <&bus_acp_opp_table>;
38 bus_acp_opp_table: opp-table {
39 compatible = "operating-points-v2";
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/linux/arch/arm64/boot/dts/rockchip/
H A Drk3368.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 #include <dt-bindings/clock/rk3368-cru.h>
7 #include <dt-bindings/gpio/gpio.h>
8 #include <dt-bindings/interrupt-controller/irq.h>
9 #include <dt-bindings/interrupt-controller/arm-gic.h>
10 #include <dt-bindings/pinctrl/rockchip.h>
11 #include <dt-bindings/power/rk3368-power.h>
12 #include <dt-bindings/soc/rockchip,boot-mode.h>
13 #include <dt-bindings/thermal/thermal.h>
17 interrupt-parent = <&gic>;
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/linux/drivers/thermal/
H A Damlogic_thermal.c1 // SPDX-License-Identifier: GPL-2.0+
8 * Register value to celsius temperature formulas:
10 * U = ---------, uptat = ---------
13 * Temperature = A * ( uptat + u_efuse / 2^16 )- B
84 * @u_efuse_off: register offset to read fused calibration value
106 * Calculate a temperature value from a temperature code.
107 * The unit of the temperature is degree milliCelsius.
113 pdata->data->calibration_parameters; in amlogic_thermal_code_to_millicelsius()
117 uefuse = pdata->trim_info & TSENSOR_TRIM_SIGN_MASK ? in amlogic_thermal_code_to_millicelsius()
118 ~(pdata->trim_info & TSENSOR_TRIM_TEMP_MASK) + 1 : in amlogic_thermal_code_to_millicelsius()
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/linux/arch/arm/boot/dts/rockchip/
H A Drk3288.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
3 #include <dt-bindings/gpio/gpio.h>
4 #include <dt-bindings/interrupt-controller/irq.h>
5 #include <dt-bindings/interrupt-controller/arm-gic.h>
6 #include <dt-bindings/pinctrl/rockchip.h>
7 #include <dt-bindings/clock/rk3288-cru.h>
8 #include <dt-bindings/power/rk3288-power.h>
9 #include <dt-bindings/thermal/thermal.h>
10 #include <dt-bindings/soc/rockchip,boot-mode.h>
13 #address-cells = <2>;
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/linux/drivers/iio/afe/
H A Diio-rescale.c1 // SPDX-License-Identifier: GPL-2.0
33 *val *= rescale->numerator; in rescale_process_scale()
34 if (rescale->denominator == 1) in rescale_process_scale()
36 *val2 = rescale->denominator; in rescale_process_scale()
44 if (!check_mul_overflow(*val, rescale->numerator, &_val) && in rescale_process_scale()
45 !check_mul_overflow(*val2, rescale->denominator, &_val2)) { in rescale_process_scale()
53 tmp = div_s64(tmp, rescale->denominator); in rescale_process_scale()
54 tmp *= rescale->numerator; in rescale_process_scale()
82 * *val = 1 and *val2 = -0.5 yields -1.5 not -0.5. in rescale_process_scale()
86 tmp = (s64)abs(*val) * abs(rescale->numerator); in rescale_process_scale()
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/linux/drivers/iio/pressure/
H A Ddps310.c1 // SPDX-License-Identifier: GPL-2.0+
4 * The DPS310 is a barometric pressure and temperature sensor.
5 * Currently only reading a single temperature is supported by
10 * Temperature calculation:
14 * - Optionally support the FIFO
119 rc = regmap_bulk_read(data->regmap, DPS310_COEF_BASE, coef, in dps310_get_coefs()
125 * Calculate temperature calibration coefficients c0 and c1. The in dps310_get_coefs()
126 * numbers are 12-bit 2's complement numbers. in dps310_get_coefs()
129 data->c0 = sign_extend32(c0, 11); in dps310_get_coefs()
132 data->c1 = sign_extend32(c1, 11); in dps310_get_coefs()
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/linux/include/soc/tegra/
H A Dbpmp-abi.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2014-2022, NVIDIA CORPORATION. All rights reserved.
66 * A well-defined subset of the MRQ messages that the CPU sends to the
130 * -BPMP_EBADMSG and ignore the request.
144 …* | -------------------- | ------------------------------------ | --------------------------------…
223 * calculated by BPMP, -BPMP_EBADMSG will be returned and the request will
402 * @defgroup CC3 Auto-CC3
457 * mrq_ping_request challenge left shifted by 1 with the carry-bit
548 * The BPMP firmware implements a pseudo-filesystem called
637 * |-------------------|-------|
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/linux/drivers/hwmon/
H A Dbt1-pvt.c1 // SPDX-License-Identifier: GPL-2.0-only
9 * Baikal-T1 Process, Voltage, Temperature sensor driver
18 #include <linux/hwmon-sysfs.h>
34 #include "bt1-pvt.h"
42 PVT_SENSOR_INFO(0, "CPU Core Temperature", hwmon_temp, TEMP, TTHRES),
44 PVT_SENSOR_INFO(1, "CPU Core Low-Vt", hwmon_in, LVT, LTHRES),
45 PVT_SENSOR_INFO(2, "CPU Core High-Vt", hwmon_in, HVT, HTHRES),
46 PVT_SENSOR_INFO(3, "CPU Core Standard-Vt", hwmon_in, SVT, STHRES),
50 * The original translation formulae of the temperature (in degrees of Celsius)
51 * to PVT data and vice-versa are following:
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