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/Linux-v6.1/Documentation/devicetree/bindings/iio/afe/
Dcurrent-sense-shunt.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/afe/current-sense-shunt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Current Sense Shunt
10 - Peter Rosin <peda@axentia.se>
13 When an io-channel measures the voltage over a current sense shunt,
14 the interesting measurement is almost always the current through the
15 shunt, not the voltage over it. This binding describes such a current
16 sense circuit.
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/Linux-v6.1/Documentation/devicetree/bindings/iio/adc/
Dmaxim,max9611.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Maxim MAX9611 and similar current sense amplifiers with integrated ADCs
10 - Jacopo Mondi <jacopo@jmondi.org>
13 These devices combine a high-side current sense amplifier with a 12 bit ADC.
19 - maxim,max9611
20 - maxim,max9612
25 shunt-resistor-micro-ohms:
27 Value in micro Ohms of the shunt resistor connected between the RS+ and
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Drichtek,rtq6056.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RTQ6056 Bi-Directional Current and Power Monitor with 16-bit ADC
10 - ChiYuan Huang <cy_huang@richtek.com>
13 The RTQ6056 is a high accuracy current-sense monitor with I2C and SMBus
15 out the loading current and power.
17 The device monitors both of the drops across sense resistor and the BUS
18 voltage, converts into the current in amperes, and power in watts through
19 internal analog-to-digital converter ADC. The programmable calibration,
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/Linux-v6.1/drivers/iio/afe/
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-v6.1/drivers/hwmon/
Dltc4151.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Driver for Linear Technology LTC4151 High Voltage I2C Current
25 #include <linux/hwmon-sysfs.h>
42 unsigned int shunt; /* in micro ohms */ member
51 struct i2c_client *client = data->client; in ltc4151_update_device()
54 mutex_lock(&data->update_lock); in ltc4151_update_device()
58 * (Conversion Rate 6 - 9 Hz) in ltc4151_update_device()
60 if (time_after(jiffies, data->last_updated + HZ / 6) || !data->valid) { in ltc4151_update_device()
63 dev_dbg(&client->dev, "Starting ltc4151 update\n"); in ltc4151_update_device()
66 for (i = 0; i < ARRAY_SIZE(data->regs); i++) { in ltc4151_update_device()
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Dadm1177.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright 2015-2019 Analog Devices Inc.
27 * struct adm1177_state - driver instance specific data
30 * @r_sense_uohm: current sense resistor value
31 * @alert_threshold_ua: current limit for shutdown
44 return i2c_master_recv(st->client, data, num); in adm1177_read_raw()
49 return i2c_smbus_write_byte(st->client, cmd); in adm1177_write_cmd()
58 val = 0xFFULL * alert_threshold_ua * st->r_sense_uohm; in adm1177_write_alert_thr()
64 ret = i2c_smbus_write_byte_data(st->client, ADM1177_REG_ALERT_TH, in adm1177_write_alert_thr()
69 st->alert_threshold_ua = alert_threshold_ua; in adm1177_write_alert_thr()
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/Linux-v6.1/Documentation/devicetree/bindings/hwmon/
Dadi,adm1177.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Michael Hennerich <michael.hennerich@analog.com>
14 https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1177.pdf
19 - adi,adm1177
24 avcc-supply:
28 shunt-resistor-micro-ohms:
30 The value of curent sense resistor in microohms. If not provided,
31 the current reading and overcurrent alert is disabled.
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/Linux-v6.1/Documentation/ABI/testing/
Dsysfs-bus-iio-adc-max96114 Contact: linux-iio@vger.kernel.org
5 Description: The value of the shunt resistor used to compute power drain on
11 Contact: linux-iio@vger.kernel.org
12 Description: The value of the shunt resistor used to compute current flowing
13 between RS+ and RS- voltage sense inputs. In Ohms.
17 current flowing between RS+ and RS- inputs.
/Linux-v6.1/Documentation/devicetree/bindings/hwmon/pmbus/
Dti,lm25066.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: National Semiconductor/Texas Instruments LM250x6/LM506x power-management ICs
11 - Zev Weiss <zev@bewilderbeest.net>
14 The LM25066 family of power-management ICs (a.k.a. hot-swap
16 offer temperature, current, voltage, and power monitoring.
23 - ti,lm25056
24 - ti,lm25066
25 - ti,lm5064
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/Linux-v6.1/Documentation/hwmon/
Dlm25066.rst10 Addresses scanned: -
22 Addresses scanned: -
34 Addresses scanned: -
44 Addresses scanned: -
54 Addresses scanned: -
61 Author: Guenter Roeck <linux@roeck-us.net>
65 -----------
76 -----------
78 This driver does not auto-detect devices. You will have to instantiate the
79 devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
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/Linux-v6.1/drivers/hwmon/pmbus/
Dadm1275.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Hardware monitoring driver for Analog Devices ADM1275 Hot-Swap Controller
110 [0] = { 27169, 0, -1 }, /* voltage */
111 [1] = { 806, 20475, -1 }, /* current, irange25 */
112 [2] = { 404, 20475, -1 }, /* current, irange50 */
113 [3] = { 8549, 0, -1 }, /* power, irange25 */
114 [4] = { 4279, 0, -1 }, /* power, irange50 */
118 [0] = { 6770, 0, -2 }, /* voltage, vrange 60V */
119 [1] = { 4062, 0, -2 }, /* voltage, vrange 100V */
120 [2] = { 1326, 20480, -1 }, /* current, vsense range 15mV */
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Dlm25066.c1 // SPDX-License-Identifier: GPL-2.0-or-later
36 #define LM25066_DEV_SETUP_CL BIT(4) /* Current limit */
60 .R = -2,
64 .b = -1833,
65 .R = -2,
69 .b = -537,
70 .R = -2,
74 .b = -2908,
75 .R = -3,
79 .b = -5646,
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/Linux-v6.1/drivers/iio/adc/
Dmax9611.c1 // SPDX-License-Identifier: GPL-2.0
5 * Maxim max9611/max9612 high side current sense amplifier with
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
50 * max9611 current sense amplifier voltage output:
58 * The complete formula to calculate current sense voltage is:
59 * (((adc_read >> 4) - offset) / ((1 / LSB) * 10^-3)
73 * (((adc_read >> 4) * 1000) - offset) / (1 / 14 * 1000)
115 * max9611_mux_conf - associate ADC mux configuration with register address
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/Linux-v6.1/arch/arm/boot/dts/
Dste-ux500-samsung-janice.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * Devicetree for the Samsung Galaxy S Advance GT-I9070 also known as Janice.
6 /dts-v1/;
7 #include "ste-db8500.dtsi"
8 #include "ste-ab8500.dtsi"
9 #include "ste-dbx5x0-pinctrl.dtsi"
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/leds/common.h>
12 #include <dt-bindings/input/input.h>
13 #include <dt-bindings/interrupt-controller/irq.h>
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Ds5pv210-aries.dtsi1 // SPDX-License-Identifier: GPL-2.0
6 /dts-v1/;
7 #include <dt-bindings/gpio/gpio.h>
8 #include <dt-bindings/interrupt-controller/irq.h>
32 reserved-memory {
33 #address-cells = <1>;
34 #size-cells = <1>;
38 compatible = "shared-dma-pool";
39 no-map;
44 compatible = "shared-dma-pool";
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/Linux-v6.1/
DMAINTAINERS6 trivial patch so apply some common sense.
9 -------------------------
30 ``diff -u`` to make the patch easy to merge. Be prepared to get your
40 See Documentation/process/coding-style.rst for guidance here.
46 See Documentation/process/submitting-patches.rst for details.
57 include a Signed-off-by: line. The current version of this
59 Documentation/process/submitting-patches.rst.
70 that the bug would present a short-term risk to other users if it
76 Documentation/admin-guide/security-bugs.rst for details.
81 ---------------------------------------------------
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