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/openbmc/linux/Documentation/devicetree/bindings/iio/adc/
H A Dmaxim,max9611.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
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
28 RS- inputs, across which the current is measured. Value needed to compute
[all …]
H A Dti,lmp92064.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Leonard Göhrs <l.goehrs@pengutronix.de>
22 - ti,lmp92064
27 vdd-supply:
30 vdig-supply:
34 shunt-resistor-micro-ohms:
36 Value of the shunt resistor (in µΩ) connected between INCP and INCN,
40 reset-gpios:
[all …]
H A 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
17 The device monitors both of the drops across sense resistor and the BUS
19 internal analog-to-digital converter ADC. The programmable calibration,
24 https://www.richtek.com/assets/product_file/RTQ6056/DSQ6056-00.pdf
33 "#io-channel-cells":
[all …]
/openbmc/linux/Documentation/devicetree/bindings/mfd/
H A Dmaxim,max5970.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Patrick Rudolph <patrick.rudolph@9elements.com>
24 - maxim,max5970
25 - maxim,max5978
39 "#address-cells":
42 "#size-cells":
46 "^led@[0-3]$":
52 vss1-supply:
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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
[all …]
H A Dina3221.txt5 - compatible: Must be "ti,ina3221"
6 - reg: I2C address
9 - ti,single-shot: This chip has two power modes: single-shot (chip takes one
13 but the single-shot mode is more power-friendly and useful
14 for battery-powered device which cares power consumptions
16 If this property is present, the single-shot mode will be
22 - #address-cells: Required only if a child node is present. Must be 1.
23 - #size-cells: Required only if a child node is present. Must be 0.
27 - reg: Must be 0, 1 or 2, corresponding to IN1, IN2 or IN3 port of INA3221
30 - label: Name of the input source
[all …]
H A Dlltc,ltc4151.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Krzysztof Kozlowski <krzk@kernel.org>
19 shunt-resistor-micro-ohms:
21 Shunt resistor value in micro-Ohms
25 - compatible
26 - reg
31 - |
33 #address-cells = <1>;
[all …]
H A Dadi,ltc2992.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Alexandru Tachici <alexandru.tachici@analog.com>
14 https://www.analog.com/media/en/technical-documentation/data-sheets/ltc2992.pdf
19 - adi,ltc2992
24 '#address-cells':
27 '#size-cells':
30 avcc-supply: true
33 "^channel@([0-1])$":
[all …]
H A 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 current sense resistor in microohms. If not provided,
33 adi,shutdown-threshold-microamp:
[all …]
H A Dti,tps23861.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Robert Marko <robert.marko@sartura.hr>
14 The TPS23861 is a IEEE 802.3at Quad Port Power-over-Ethernet PSE Controller.
23 - ti,tps23861
28 shunt-resistor-micro-ohms:
29 description: The value of current sense resistor in microohms.
35 - compatible
36 - reg
[all …]
H A Dadi,adm1275.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Krzysztof Kozlowski <krzk@kernel.org>
15 that offer digital current, voltage, and power monitoring using an on-chip,
16 12-bit analog-to-digital converter (ADC), communicated through a PMBus
25 - adi,adm1075
26 - adi,adm1272
27 - adi,adm1275
28 - adi,adm1276
[all …]
H A Dti,tmp513.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Eric Tremblay <etremblay@distech-controls.com>
14 The TMP512 (dual-channel) and TMP513 (triple-channel) are system monitors
15 that include remote sensors, a local temperature sensor, and a high-side
16 current shunt monitor. These system monitors have the capability of measuring
17 remote temperatures, on-chip temperatures, and system voltage/power/current
28 - ti,tmp512
29 - ti,tmp513
[all …]
H A Dlltc,ltc4286.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Delphine CC Chiu <Delphine_CC_Chiu@Wiwynn.com>
15 - lltc,ltc4286
16 - lltc,ltc4287
21 adi,vrange-low-enable:
29 - compatible
30 - reg
33 - $ref: hwmon-common.yaml#
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/openbmc/linux/Documentation/devicetree/bindings/iio/afe/
H A 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,
15 shunt, not the voltage over it. This binding describes such a current
20 const: current-sense-shunt
22 io-channels:
[all …]
/openbmc/linux/arch/arm/boot/dts/aspeed/
H A Daspeed-bmc-ibm-sbp1.dts1 // SPDX-License-Identifier: GPL-2.0+
3 /dts-v1/;
4 #include <dt-bindings/gpio/aspeed-gpio.h>
5 #include <dt-bindings/input/input.h>
6 #include <dt-bindings/interrupt-controller/irq.h>
7 #include <dt-bindings/leds/common.h>
8 #include <dt-bindings/i2c/i2c.h>
9 #include "aspeed-g6.dtsi"
13 compatible = "ibm,sbp1-bmc", "aspeed,ast2600";
16 stdout-path = &uart1;
[all …]
H A Daspeed-bmc-facebook-yosemite4.dts1 // SPDX-License-Identifier: GPL-2.0-or-later
4 /dts-v1/;
5 #include "aspeed-g6.dtsi"
6 #include <dt-bindings/gpio/aspeed-gpio.h>
7 #include <dt-bindings/leds/leds-pca955x.h>
8 #include <dt-bindings/i2c/i2c.h>
12 compatible = "facebook,yosemite4-bmc", "aspeed,ast2600";
44 stdout-path = "serial4:57600n8";
52 iio-hwmon {
53 compatible = "iio-hwmon";
[all …]
H A Daspeed-bmc-asrock-romed8hm3.dts1 // SPDX-License-Identifier: GPL-2.0+
2 /dts-v1/;
4 #include "aspeed-g5.dtsi"
5 #include <dt-bindings/gpio/aspeed-gpio.h>
6 #include <dt-bindings/interrupt-controller/irq.h>
10 compatible = "asrock,romed8hm3-bmc", "aspeed,ast2500";
17 stdout-path = &uart5;
26 compatible = "gpio-leds";
30 linux,default-trigger = "timer";
33 system-fault {
[all …]
/openbmc/linux/Documentation/devicetree/bindings/hwmon/pmbus/
H A 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
23 - ti,lm25056
24 - ti,lm25066
25 - ti,lm5064
26 - ti,lm5066
[all …]
/openbmc/linux/arch/arm64/boot/dts/nvidia/
H A Dtegra186-p3310.dtsi1 // SPDX-License-Identifier: GPL-2.0
4 #include <dt-bindings/mfd/max77620.h>
27 stdout-path = "serial0:115200n8";
38 phy-reset-gpios = <&gpio TEGRA186_MAIN_GPIO(M, 4)
40 phy-handle = <&phy>;
41 phy-mode = "rgmii";
44 #address-cells = <1>;
45 #size-cells = <0>;
47 phy: ethernet-phy@0 {
48 compatible = "ethernet-phy-ieee802.3-c22";
[all …]
/openbmc/linux/drivers/hwmon/
H A Dltc4151.c1 // SPDX-License-Identifier: GPL-2.0-or-later
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()
77 data->regs[i] = val; in ltc4151_update_device()
[all …]
H A Dltc2945.c1 // SPDX-License-Identifier: GPL-2.0-or-later
14 #include <linux/hwmon-sysfs.h>
68 * struct ltc2945_data - LTC2945 device data
70 * @shunt_resistor: shunt resistor value in micro ohms (1000 by default)
86 struct regmap *regmap = data->regmap; in ltc2945_reg_to_val()
87 u32 shunt_resistor = data->shunt_resistor; in ltc2945_reg_to_val()
99 /* 24-bit power */ in ltc2945_reg_to_val()
102 /* 12-bit current, voltage */ in ltc2945_reg_to_val()
128 /* Overflow check: Assuming max 24-bit power, val is at most 53 bits right now. */ in ltc2945_reg_to_val()
131 * Overflow check: After division, depending on shunt resistor, in ltc2945_reg_to_val()
[all …]
H A Dadm1177.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright 2015-2019 Analog Devices Inc.
27 * struct adm1177_state - driver instance specific data
29 * @r_sense_uohm: current sense resistor value
42 return i2c_master_recv(st->client, data, num); in adm1177_read_raw()
47 return i2c_smbus_write_byte(st->client, cmd); in adm1177_write_cmd()
56 val = 0xFFULL * alert_threshold_ua * st->r_sense_uohm; in adm1177_write_alert_thr()
62 ret = i2c_smbus_write_byte_data(st->client, ADM1177_REG_ALERT_TH, in adm1177_write_alert_thr()
67 st->alert_threshold_ua = alert_threshold_ua; in adm1177_write_alert_thr()
92 4096 * st->r_sense_uohm); in adm1177_read()
[all …]
/openbmc/linux/Documentation/devicetree/bindings/iio/addac/
H A Dadi,ad74413r.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Cosmin Tanislav <cosmin.tanislav@analog.com>
13 The AD74412R and AD74413R are quad-channel software configurable input/output
18 The devices feature a 16-bit ADC and four configurable 13-bit DACs to provide
20 The AD74413R differentiates itself from the AD74412R by being HART-compatible.
27 - adi,ad74412r
28 - adi,ad74413r
33 '#address-cells':
[all …]
/openbmc/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()
80 * For IIO_VAL_INT_PLUS_{MICRO,NANO} scale types if either *val in rescale_process_scale()
82 * *val = 1 and *val2 = -0.5 yields -1.5 not -0.5. in rescale_process_scale()
[all …]
/openbmc/linux/arch/arm/boot/dts/st/
H A Dstm32mp157c-lxa-tac-gen1.dts1 // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause)
3 * Copyright (C) 2020 STMicroelectronics - All Rights Reserved
8 /dts-v1/;
11 #include "stm32mp15xc-lxa-tac.dtsi"
15 compatible = "lxa,stm32mp157c-tac-gen1", "oct,stm32mp15xx-osd32", "st,stm32mp157";
18 compatible = "pwm-backlight";
19 power-supply = <&v3v3>;
21 brightness-levels = <0 31 63 95 127 159 191 223 255>;
22 default-brightness-level = <7>;
26 reg_iobus_12v: regulator-iobus-12v {
[all …]

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