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/openbmc/linux/Documentation/devicetree/bindings/hwmon/
H A Dadi,ltc2945.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Guenter Roeck <linux@roeck-us.net>
15 https://www.analog.com/media/en/technical-documentation/data-sheets/LTC2945.pdf
20 - adi,ltc2945
25 shunt-resistor-micro-ohms:
27 Shunt resistor value in micro-Ohms
31 - compatible
32 - reg
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/openbmc/linux/Documentation/ABI/testing/
H A Dsysfs-class-power-mp26299 Valid values: Represented in milli-ohms. Valid range is [0, 140].
H A Dsysfs-platform-dptf4 Contact: linux-acpi@vger.kernel.org
6 (RO) The charger type - Traditional, Hybrid or NVDC.
11 Contact: linux-acpi@vger.kernel.org
19 Contact: linux-acpi@vger.kernel.org
27 Contact: linux-acpi@vger.kernel.org
33 - 0x00 = DC
34 - 0x01 = AC
35 - 0x02 = USB
36 - 0x03 = Wireless Charger
43 Contact: linux-acpi@vger.kernel.org
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H A Dsysfs-bus-iio3 Contact: linux-iio@vger.kernel.org
11 Contact: linux-iio@vger.kernel.org
25 Contact: linux-iio@vger.kernel.org
31 Contact: linux-iio@vger.kernel.org
38 Contact: linux-iio@vger.kernel.org
44 The contents of the label are free-form, but there are some
51 * "proximity-wifi"
52 * "proximity-lte"
53 * "proximity-wifi-lte"
54 * "proximity-wifi-left"
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/openbmc/linux/Documentation/devicetree/bindings/input/touchscreen/
H A Dti,tsc2005.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Marek Vasut <marex@denx.de>
11 - Michael Welling <mwelling@ieee.org>
19 - ti,tsc2004
20 - ti,tsc2005
31 reset-gpios:
35 spi-max-frequency:
39 ti,x-plate-ohms:
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/openbmc/linux/include/linux/platform_data/
H A Dgsc_hwmon.h1 /* SPDX-License-Identifier: GPL-2.0 */
15 * struct gsc_hwmon_channel - configuration parameters
20 * @vdiv: voltage divider array (2 resistor values in milli-ohms)
31 * struct gsc_hwmon_platform_data - platform data for gsc_hwmon driver
/openbmc/linux/Documentation/devicetree/bindings/iio/temperature/
H A Dadi,ltc2983.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices LTC2983, LTC2986, LTM2985 Multi-sensor Temperature system
10 - Nuno Sá <nuno.sa@analog.com>
13 Analog Devices LTC2983, LTC2984, LTC2986, LTM2985 Multi-Sensor Digital
16 https://www.analog.com/media/en/technical-documentation/data-sheets/2983fc.pdf
17 https://www.analog.com/media/en/technical-documentation/data-sheets/2984fb.pdf
18 https://www.analog.com/media/en/technical-documentation/data-sheets/29861fa.pdf
19 https://www.analog.com/media/en/technical-documentation/data-sheets/ltm2985.pdf
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/openbmc/linux/Documentation/devicetree/bindings/power/supply/
H A Dlltc,ltc294x.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
17 - Sebastian Reichel <sre@kernel.org>
20 - $ref: power-supply.yaml#
25 - lltc,ltc2941
26 - lltc,ltc2942
27 - lltc,ltc2943
28 - lltc,ltc2944
33 lltc,resistor-sense:
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/openbmc/linux/include/linux/power/
H A Dmax17042_battery.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
191 /* External current sense resistor value in milli-ohms */
255 * R_sns in micro-ohms.
/openbmc/linux/drivers/power/supply/
H A Dds2782_battery.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * I2C client/driver for the Maxim/Dallas DS2782 Stand-Alone Fuel Gauge IC
35 /* Current unit measurement in uA for a 1 milli-ohm sense resistor */
73 ret = i2c_smbus_read_byte_data(info->client, reg); in ds278x_read_reg()
75 dev_err(&info->client->dev, "register read failed\n"); in ds278x_read_reg()
88 ret = i2c_smbus_read_word_data(info->client, reg_msb); in ds278x_read_reg16()
90 dev_err(&info->client->dev, "register read failed\n"); in ds278x_read_reg16()
131 dev_err(&info->client->dev, "sense resistor value is 0\n"); in ds2782_get_current()
132 return -ENXIO; in ds2782_get_current()
136 dev_dbg(&info->client->dev, "sense resistor = %d milli-ohms\n", in ds2782_get_current()
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H A Dpower_supply_core.c1 // SPDX-License-Identifier: GPL-2.0-only
24 #include <linux/fixp-arith.h>
26 #include "samsung-sdi-battery.h"
44 if (!supply->supplied_from && !supplier->supplied_to) in __power_supply_is_supplied_by()
48 if (supply->supplied_from) { in __power_supply_is_supplied_by()
49 if (!supplier->desc->name) in __power_supply_is_supplied_by()
51 for (i = 0; i < supply->num_supplies; i++) in __power_supply_is_supplied_by()
52 if (!strcmp(supplier->desc->name, supply->supplied_from[i])) in __power_supply_is_supplied_by()
55 if (!supply->desc->name) in __power_supply_is_supplied_by()
57 for (i = 0; i < supplier->num_supplicants; i++) in __power_supply_is_supplied_by()
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H A Dab8500_fg.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) ST-Ericsson AB 2012
5 * Main and Back-up battery management driver.
7 * Note: Backup battery management is required in case of Li-Ion battery and not
37 #include <linux/fixp-arith.h>
39 #include "ab8500-bm.h"
49 /* Currents higher than -500mA (dissipating) will make compensation unstable */
50 #define IGNORE_VBAT_HIGHCUR -500000
63 * struct ab8500_fg_interrupts - ab8500 fg interrupts
158 * struct ab8500_fg - ab8500 FG device information
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/openbmc/linux/drivers/hwmon/
H A Dtmp513.c1 // SPDX-License-Identifier: GPL-2.0
15 * Copyright (C) 2019 Eric Tremblay <etremblay@distech-controls.com>
115 // Max possible value is -256 to +256 but datasheet indicated -40 to 125.
117 #define MIN_TEMP_LIMIT -40000
181 // Set the shift based on the gain: 8 -> 1, 4 -> 2, 2 ->
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H A Dhp-wmi-sensors.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * hwmon driver for HP (and some HP Compaq) business-class computers that
9 * [1] Hewlett-Packard Development Company, L.P.,
12 * [2] Hewlett-Packard Development Company, L.P.,
16 * "linuxhw/ACPI - Collect ACPI table dumps", 2018. [Online].
18 * [4] P. Rohár, "bmfdec - Decompile binary MOF file (BMF) from WMI buffer",
20 * [5] Microsoft Corporation, "Driver-Defined WMI Data Items", 2017. [Online].
21 … Available: https://learn.microsoft.com/en-us/windows-hardware/drivers/kernel/driver-defined-w…
35 #define HP_WMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
36 #define HP_WMI_NUMERIC_SENSOR_GUID "8F1F6435-9F42-42C8-BADC-0E9424F20C9A"
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/openbmc/linux/drivers/iio/temperature/
H A Dltc2983.c1 // SPDX-License-Identifier: GPL-2.0
3 * Analog Devices LTC2983 Multi-Sensor Digital Temperature Measurement System
57 (((chan - 1) * 4) + LTC2983_CHAN_ASSIGN_START_REG)
59 (((chan - 1) * 4) + LTC2983_TEMP_RES_START_REG)
308 * instance a resolution of 2^-10 means we have 10 fractional bits.
322 s64 __res = -(s32)val; in __convert_to_raw_sign()
326 return (u32)-__res; in __convert_to_raw_sign()
333 const struct device *dev = &st->spi->dev; in __ltc2983_fault_handler()
337 return -EIO; in __ltc2983_fault_handler()
350 u32 reg = LTC2983_CHAN_START_ADDR(sensor->chan); in __ltc2983_chan_assign_common()
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/openbmc/linux/drivers/regulator/
H A Dbd9576-regulator.c1 // SPDX-License-Identifier: GPL-2.0
10 #include <linux/mfd/rohm-bd957x.h>
11 #include <linux/mfd/rohm-generic.h>
137 const struct regulator_desc *desc = rdev->desc; in bd957x_vout34_list_voltage()
138 int multiplier = selector & desc->vsel_mask & 0x7f; in bd957x_vout34_list_voltage()
145 return desc->fixed_uV - tune; in bd957x_vout34_list_voltage()
147 return desc->fixed_uV + tune; in bd957x_vout34_list_voltage()
153 const struct regulator_desc *desc = rdev->desc; in bd957x_list_voltage()
154 int index = selector & desc->vsel_mask & 0x7f; in bd957x_list_voltage()
157 index += desc->n_voltages/2; in bd957x_list_voltage()
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/openbmc/linux/drivers/iio/adc/
H A Dmax9611.c1 // SPDX-License-Identifier: GPL-2.0
6 * 12-bit ADC interface.
12 * This driver supports input common-mode voltage, current-sense
16 * Op-amp, analog comparator, and watchdog functionalities are not
59 * (((adc_read >> 4) - offset) / ((1 / LSB) * 10^-3)
73 * (((adc_read >> 4) * 1000) - offset) / (1 / 14 * 1000)
79 * max9611 temperature reading: LSB is 480 milli degrees Celsius
115 * max9611_mux_conf - associate ADC mux configuration with register address
138 * max9611_csa_gain_conf - associate gain multiplier with LSB and
196 * max9611_read_single() - read a single value from ADC interface
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/openbmc/linux/sound/soc/codecs/
H A Dwcd934x.c1 // SPDX-License-Identifier: GPL-2.0
5 #include <linux/clk-provider.h>
21 #include <sound/soc-dapm.h>
23 #include "wcd-clsh-v2.h"
24 #include "wcd-mbhc-v2.h"
140 /* Z floating defined in ohms */
430 COMPANDER_5, /* LO3_SE - not used in Tavil */
431 COMPANDER_6, /* LO4_SE - not used in Tavil */
520 .name = "WCD9335-IFC-DEV",
589 static const DECLARE_TLV_DB_SCALE(digital_gain, -8400, 100, -8400);
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