| /linux-6.12.1/Documentation/hwmon/ |
| D | ina2xx.rst | 61 The INA219 is a high-side current shunt and power monitor with an I2C
62 interface. The INA219 monitors both shunt drop and supply voltage, with
65 The INA220 is a high or low side current shunt and power monitor with an I2C
66 interface. The INA220 monitors both shunt drop and supply voltage.
68 The INA226 is a current shunt and power monitor with an I2C interface.
69 The INA226 monitors both a shunt voltage drop and bus supply voltage.
71 INA230 and INA231 are high or low side current shunt and power monitors
72 with an I2C interface. The chips monitor both a shunt voltage drop and
75 The shunt value in micro-ohms can be set via platform data or device tree at
82 bus and shunt voltage conversion times multiplied by the averaging rate. We
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| D | ina209.rst | 40 in0_input shunt voltage (mV)
41 in0_input_highest shunt voltage historical maximum reading (mV)
42 in0_input_lowest shunt voltage historical minimum reading (mV)
43 in0_reset_history reset shunt voltage history
44 in0_max shunt voltage max alarm limit (mV)
45 in0_min shunt voltage min alarm limit (mV)
46 in0_crit_max shunt voltage crit max alarm limit (mV)
47 in0_crit_min shunt voltage crit min alarm limit (mV)
48 in0_max_alarm shunt voltage max alarm limit exceeded
49 in0_min_alarm shunt voltage min alarm limit exceeded
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| D | ina238.rst | 22 The INA238 is a current shunt, power and temperature monitor with an I2C
24 conversion rate, sample averaging and selectable shunt voltage accuracy.
26 The shunt value in micro-ohms can be set via platform data or device tree at
35 in0_input Shunt voltage (mV)
36 in0_min Minimum shunt voltage threshold (mV)
37 in0_min_alarm Minimum shunt voltage alarm
38 in0_max Maximum shunt voltage threshold (mV)
39 in0_max_alarm Maximum shunt voltage alarm
43 in1_min_alarm Minimum shunt voltage alarm
45 in1_max_alarm Maximum shunt voltage alarm
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| D | ina3221.rst | 22 side of up to three D.C. power supplies. The INA3221 monitors both shunt drop
34 shunt[123]_resistor Shunt resistance(uOhm) channels
43 in[456]_input Shunt voltage(uV) for channels 1, 2, and 3 respectively
44 in7_input Sum of shunt voltage(uV) channels
45 in7_label Channel label for sum of shunt voltage
48 value for their shunt resistors)
53 value for their shunt resistors)
69 * SC: shunt-voltage conversion time in millisecond
71 Affects both Bus- and Shunt-voltage conversion time.
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| D | tmp513.rst | 30 shunt monitor. These system monitors have the capability of measuring remote
52 The driver read the shunt voltage from the chip and convert it to current.
54 shunt resistor value. The value resolution will be equal to 10uV/Rshunt.
56 The driver exports the shunt currents values via the following sysFs files:
103 and depend on the shunt resistor value and the pga_gain value.
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| /linux-6.12.1/Documentation/devicetree/bindings/iio/afe/ |
| D | current-sense-shunt.yaml | 4 $id: http://devicetree.org/schemas/iio/afe/current-sense-shunt.yaml#
7 title: Current Sense Shunt
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
30 shunt-resistor-micro-ohms:
31 description: The shunt resistance.
36 - shunt-resistor-micro-ohms
61 compatible = "current-sense-shunt";
66 shunt-resistor-micro-ohms = <3300000>;
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| /linux-6.12.1/arch/arm/boot/dts/aspeed/ |
| D | aspeed-bmc-facebook-minerva.dts | 159 shunt-resistor = <1000>;
165 shunt-resistor = <1000>;
171 shunt-resistor-micro-ohms = <2000>;
236 shunt-resistor = <1000>;
242 shunt-resistor = <1000>;
248 shunt-resistor = <1000>;
254 shunt-resistor = <1000>;
283 shunt-resistor = <1000>;
289 shunt-resistor = <1000>;
295 shunt-resistor = <1000>;
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| /linux-6.12.1/Documentation/devicetree/bindings/hwmon/ |
| D | ti,ina2xx.yaml | 14 The INA209 is a high-side current shunt and power monitor with
39 shunt-resistor:
41 Shunt resistor value in micro-Ohm.
44 ti,shunt-gain:
46 Programmable gain divisor for the shunt voltage accuracy and range. This
48 gain value is used configure the gain and to convert the shunt voltage,
55 For devices that have ADCRANGE configuration (e.g. INA238) a shunt-gain
57 shunt voltage, and a value of 4 maps to ADCRANGE=0 such that a wider
97 shunt-resistor = <1000>;
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| D | ti,ina3221.yaml | 58 shunt-resistor-micro-ohms:
59 description: shunt resistor value in micro-Ohm
65 shunt-voltage conversions for the desired channels in order to
66 compare the combined sum to the programmed limit. The Shunt-Voltage
68 to the value in the Shunt-Voltage Sum register in order to
70 shunt-voltage sum limit value is exceeded, the critical alert pin
74 to use the same shunt-resistor value on all enabled channels. If
112 shunt-resistor-micro-ohms = <5000>;
118 shunt-resistor-micro-ohms = <5000>;
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| D | ti,tmp513.yaml | 16 current shunt monitor. These system monitors have the capability of measuring
34 shunt-resistor-micro-ohms:
38 will continue to work. The shunt value also need to respect:
46 The PGA gain affect the shunt voltage range.
89 shunt-resistor-micro-ohms = <330000>;
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| D | adi,ltc2945.yaml | 25 shunt-resistor-micro-ohms:
27 Shunt resistor value in micro-Ohms
48 /* 10 milli-Ohm shunt resistor */
49 shunt-resistor-micro-ohms = <10000>;
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| D | adi,ltc2991.yaml | 51 shunt-resistor-micro-ohms:
68 - shunt-resistor-micro-ohms
109 shunt-resistor-micro-ohms = <100000>;
114 shunt-resistor-micro-ohms = <100000>;
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| D | lltc,ltc4151.yaml | 19 shunt-resistor-micro-ohms:
21 Shunt resistor value in micro-Ohms
42 shunt-resistor-micro-ohms = <1500>;
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| /linux-6.12.1/Documentation/devicetree/bindings/iio/adc/ |
| D | microchip,pac1934.yaml | 59 shunt-resistor-micro-ohms:
61 Value in micro Ohms of the shunt resistor connected between
67 - shunt-resistor-micro-ohms
94 shunt-resistor-micro-ohms = <24900000>;
100 shunt-resistor-micro-ohms = <49900000>;
106 shunt-resistor-micro-ohms = <75000000>;
113 shunt-resistor-micro-ohms = <100000000>;
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| D | maxim,max9611.yaml | 25 shunt-resistor-micro-ohms:
27 Value in micro Ohms of the shunt resistor connected between the RS+ and
36 - shunt-resistor-micro-ohms
47 shunt-resistor-micro-ohms = <5000>;
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| D | ti,lmp92064.yaml | 34 shunt-resistor-micro-ohms:
36 Value of the shunt resistor (in µΩ) connected between INCP and INCN,
46 - shunt-resistor-micro-ohms
66 shunt-resistor-micro-ohms = <15000>;
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| D | microchip,pac1921.yaml | 31 shunt-resistor-micro-ohms:
33 Value in micro Ohms of the shunt resistor connected between
52 - shunt-resistor-micro-ohms
68 shunt-resistor-micro-ohms = <10000>;
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| /linux-6.12.1/drivers/hwmon/ |
| D | ltc4151.c | 42 unsigned int shunt; /* in micro ohms */ member
104 val = val * 20 * 1000 / data->shunt; in ltc4151_get_value()
163 u32 shunt; in ltc4151_probe() local
173 "shunt-resistor-micro-ohms", &shunt)) in ltc4151_probe()
174 shunt = 1000; /* 1 mOhm if not set via DT */ in ltc4151_probe()
176 if (shunt == 0) in ltc4151_probe()
179 data->shunt = shunt; in ltc4151_probe()
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| D | ina3221.c | 101 * @shunt_resistor: shunt resistor value of channel input source
121 * @summation_shunt_resistor: equivalent shunt resistor value for summation
141 /* Summation channel checks shunt resistor values */ in ina3221_is_enabled()
152 * There is a condition to calculate current summation -- all the shunt
154 * current summation = shunt voltage summation / shunt resistor
156 * Returns the equivalent shunt resistor value on success or 0 on failure
168 /* Found the reference shunt resistor value */ in ina3221_summation_shunt_resistor()
180 /* Lookup table for Bus and Shunt conversion times in usec */
197 /* Bisect the result to Bus and Shunt conversion times */ in ina3221_interval_ms_to_conv_time()
236 * Shunt Voltage Sum register has 14-bit value with 1-bit shift in ina3221_read_value()
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| D | ina238.c | 59 * based on a fixed shunt resistor value. This allows for conversion within the
61 * relative to the shunt resistor value within the driver. This is similar to
64 * The end result of this is that increasing shunt values (from a fixed 20 mOhm
65 * shunt) increase the effective current/power accuracy whilst limiting the
66 * range and decreasing shunt values decrease the effective accuracy but
70 * Current (A) = (shunt voltage register * 5) * calibration / 81920
72 * The maximum shunt voltage is 163.835 mV (0x7fff, ADC_RANGE = 0, gain = 4).
73 * With the maximum current value of 0x7fff and a fixed shunt value results in
84 * to be scaled by the difference between the fixed shunt resistor and the
85 * actual shunt resistor:
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| /linux-6.12.1/arch/arm/boot/dts/ti/omap/ |
| D | am3874-iceboard.dts | 156 ina230@40 { compatible = "ti,ina230"; reg = <0x40>; shunt-resistor = <5000>; };
157 ina230@41 { compatible = "ti,ina230"; reg = <0x41>; shunt-resistor = <5000>; };
158 ina230@42 { compatible = "ti,ina230"; reg = <0x42>; shunt-resistor = <5000>; };
160 ina230@44 { compatible = "ti,ina230"; reg = <0x44>; shunt-resistor = <5000>; };
161 ina230@45 { compatible = "ti,ina230"; reg = <0x45>; shunt-resistor = <5000>; };
162 ina230@46 { compatible = "ti,ina230"; reg = <0x46>; shunt-resistor = <5000>; };
164 ina230@47 { compatible = "ti,ina230"; reg = <0x47>; shunt-resistor = <5500>; };
165 ina230@48 { compatible = "ti,ina230"; reg = <0x48>; shunt-resistor = <2360>; };
166 ina230@49 { compatible = "ti,ina230"; reg = <0x49>; shunt-resistor = <2360>; };
167 ina230@43 { compatible = "ti,ina230"; reg = <0x43>; shunt-resistor = <2360>; };
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| /linux-6.12.1/Documentation/devicetree/bindings/mfd/ |
| D | maxim,max5970.yaml | 73 shunt-resistor-micro-ohms:
78 - shunt-resistor-micro-ohms
114 shunt-resistor-micro-ohms = <12000>;
148 shunt-resistor-micro-ohms = <12000>;
151 shunt-resistor-micro-ohms = <10000>;
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| /linux-6.12.1/arch/arm/boot/dts/samsung/ |
| D | exynos5422-odroidxu3.dts | 31 shunt-resistor = <10000>;
38 shunt-resistor = <10000>;
45 shunt-resistor = <10000>;
52 shunt-resistor = <10000>;
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| /linux-6.12.1/arch/arm64/boot/dts/xilinx/ |
| D | zynqmp-zcu106-revA.dts | 310 shunt-resistor = <5000>;
317 shunt-resistor = <5000>;
324 shunt-resistor = <5000>;
331 shunt-resistor = <5000>;
338 shunt-resistor = <5000>;
345 shunt-resistor = <5000>;
352 shunt-resistor = <5000>;
359 shunt-resistor = <5000>;
366 shunt-resistor = <5000>;
373 shunt-resistor = <5000>;
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| D | zynqmp-zcu102-revA.dts | 299 shunt-resistor = <5000>;
306 shunt-resistor = <5000>;
313 shunt-resistor = <5000>;
320 shunt-resistor = <5000>;
327 shunt-resistor = <5000>;
334 shunt-resistor = <5000>;
341 shunt-resistor = <5000>;
348 shunt-resistor = <5000>;
355 shunt-resistor = <5000>;
362 shunt-resistor = <5000>;
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