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/OK3568_Linux_fs/kernel/Documentation/hwmon/
H A Dsmm665.rst67 Reference voltage on VREF_ADC pin in mV. It should not be necessary to set
68 this parameter unless a non-default reference voltage is used.
116 in1_input 12V input voltage (mV)
117 in2_input 3.3V (VDD) input voltage (mV)
118 in3_input Channel A voltage (mV)
119 in4_input Channel B voltage (mV)
120 in5_input Channel C voltage (mV)
121 in6_input Channel D voltage (mV)
122 in7_input Channel E voltage (mV)
123 in8_input Channel F voltage (mV)
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H A Dina209.rst24 The TI / Burr-Brown INA209 monitors voltage, current, and power on the high side
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
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H A Disl68137.rst407 digital multiphase voltage regulators (raa_dmpvr2). The ISL68137 is a digital
411 and 'hv' for high voltage single-rail devices. Consult the individual datasheets
425 For 2nd generation Renesas digital multiphase voltage regulators, only the
445 in1_input Measured input voltage
446 in1_lcrit Critical minimum input voltage
447 in1_lcrit_alarm Input voltage critical low alarm
448 in1_crit Critical maximum input voltage
449 in1_crit_alarm Input voltage critical high alarm
452 in[2-3]_input Measured output voltage
453 in[2-3]_lcrit Critical minimum output voltage
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H A Dsmsc47m192.rst35 These chips support 3 temperature channels and 8 voltage inputs
36 as well as CPU voltage VID input.
44 Voltages are scaled such that the nominal voltage corresponds to
46 each voltage channel is 0V ... 255/192*(nominal voltage), the resolution
47 is 1 bit per (nominal voltage)/192.
48 Both voltage and temperature values are scaled by 1000, the sys files
51 The +12V analog voltage input channel (in4_input) is multiplexed with
52 bit 4 of the encoded CPU voltage. This means that you either get
53 a +12V voltage measurement or a 5 bit CPU VID, but not both.
59 The temperature and voltage readings are updated once every 1.5 seconds.
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H A Dmax20751.rst50 in1_input Measured voltage.
51 in1_min Minimum input voltage.
52 in1_max Maximum input voltage.
53 in1_lcrit Critical minimum input voltage.
54 in1_crit Critical maximum input voltage.
55 in1_min_alarm Input voltage low alarm.
56 in1_lcrit_alarm Input voltage critical low alarm.
57 in1_min_alarm Input voltage low alarm.
58 in1_max_alarm Input voltage high alarm.
61 in2_input Measured voltage.
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H A Dir35221.rst54 in1_input Measured input voltage
55 in1_crit Critical maximum input voltage
56 in1_crit_alarm Input voltage critical high alarm
57 in1_highest Highest input voltage
58 in1_lowest Lowest input voltage
59 in1_min Minimum input voltage
60 in1_min_alarm Input voltage low alarm
63 in[2-3]_input Measured output voltage
64 in[2-3]_lcrit Critical minimum output voltage
65 in[2-3]_lcrit_alarm Output voltage critical low alarm
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H A Dir38064.rst21 IR38064 is a Single-input Voltage, Synchronous Buck Regulator, DC-DC Converter.
41 in1_input Measured input voltage
42 in1_crit Critical maximum input voltage
43 in1_crit_alarm Input voltage critical high alarm
44 in1_min Minimum input voltage
45 in1_min_alarm Input voltage low alarm
48 in2_input Measured output voltage
49 in2_lcrit Critical minimum output voltage
50 in2_lcrit_alarm Output voltage critical low alarm
51 in2_crit Critical maximum output voltage
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H A Ducd9200.rst62 in1_input Measured voltage. From READ_VIN register.
63 in1_min Minimum Voltage. From VIN_UV_WARN_LIMIT register.
64 in1_max Maximum voltage. From VIN_OV_WARN_LIMIT register.
65 in1_lcrit Critical minimum Voltage. VIN_UV_FAULT_LIMIT register.
66 in1_crit Critical maximum voltage. From VIN_OV_FAULT_LIMIT
68 in1_min_alarm Voltage low alarm. From VIN_UV_WARNING status.
69 in1_max_alarm Voltage high alarm. From VIN_OV_WARNING status.
70 in1_lcrit_alarm Voltage critical low alarm. From VIN_UV_FAULT status.
71 in1_crit_alarm Voltage critical high alarm. From VIN_OV_FAULT status.
74 in[2-5]_input Measured voltage. From READ_VOUT register.
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H A Dzl6100.rst166 in1_input Measured input voltage.
167 in1_min Minimum input voltage.
168 in1_max Maximum input voltage.
169 in1_lcrit Critical minimum input voltage.
170 in1_crit Critical maximum input voltage.
171 in1_min_alarm Input voltage low alarm.
172 in1_max_alarm Input voltage high alarm.
173 in1_lcrit_alarm Input voltage critical low alarm.
174 in1_crit_alarm Input voltage critical high alarm.
177 in2_input Measured voltage on VMON (ZL2004) or VDRV (ZL9101M,
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H A Dina2xx.rst62 interface. The INA219 monitors both shunt drop and supply voltage, with
66 interface. The INA220 monitors both shunt drop and supply voltage.
69 The INA226 monitors both a shunt voltage drop and bus supply voltage.
72 with an I2C interface. The chips monitor both a shunt voltage drop and
73 bus supply voltage.
82 bus and shunt voltage conversion times multiplied by the averaging rate. We
91 in0_input Shunt voltage(mV) channel
92 in1_input Bus voltage(mV) channel
102 in0_lcrit Critical low shunt voltage
103 in0_crit Critical high shunt voltage
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/OK3568_Linux_fs/kernel/drivers/regulator/
H A DKconfig3 bool "Voltage and Current Regulator Support"
6 Generic Voltage and Current Regulator support.
8 This framework is designed to provide a generic interface to voltage
10 provide voltage and current control to client or consumer drivers and
16 to both voltage regulators (where voltage output is controllable) and
34 tristate "Fixed voltage regulator support"
36 This driver provides support for fixed voltage regulators,
43 This driver provides a virtual consumer for the voltage and
60 tristate "Marvell 88PG86X voltage regulators"
64 This driver supports Marvell 88PG867 and 88PG868 voltage regulators.
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/OK3568_Linux_fs/kernel/arch/arm/mach-omap2/
H A Dvoltage.c3 * OMAP3/OMAP4 Voltage Management Routines
36 #include "voltage.h"
46 * voltdm_get_voltage() - Gets the current non-auto-compensated voltage
47 * @voltdm: pointer to the voltdm for which current voltage info is needed
49 * API to get the current non-auto-compensated voltage for a voltage domain.
50 * Returns 0 in case of error else returns the current voltage.
63 * voltdm_scale() - API to scale voltage of a particular voltage domain.
64 * @voltdm: pointer to the voltage domain which is to be scaled.
65 * @target_volt: The target voltage of the voltage domain
67 * This API should be called by the kernel to do the voltage scaling
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H A Dvoltage.h3 * OMAP Voltage Management Routines
16 #include <linux/platform_data/voltage-omap.h>
32 * struct omap_vfsm_instance - per-voltage manager FSM register/bitfield
47 * struct voltagedomain - omap voltage domain global structure.
48 * @name: Name of the voltage domain which can be used as a unique identifier.
49 * @scalable: Whether or not this voltage domain is scalable
50 * @node: list_head linking all voltage domains
57 * @scale: function used to scale the voltage of the voltagedomain
58 * @nominal_volt: current nominal voltage for this voltage domain
59 * @volt_data: voltage table having the distinct voltages supported
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/OK3568_Linux_fs/u-boot/drivers/power/
H A DKconfig102 int "axp pmic dcdc1 voltage"
107 Set the voltage (mV) to program the axp pmic dcdc1 at, set to 0 to
109 generic 3.3V IO voltage for external devices like the lcd-panal and
116 int "axp pmic dcdc2 voltage"
124 Set the voltage (mV) to program the axp pmic dcdc2 at, set to 0 to
134 int "axp pmic dcdc3 voltage"
142 Set the voltage (mV) to program the axp pmic dcdc3 at, set to 0 to
153 int "axp pmic dcdc4 voltage"
160 Set the voltage (mV) to program the axp pmic dcdc4 at, set to 0 to
169 int "axp pmic dcdc5 voltage"
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/OK3568_Linux_fs/kernel/drivers/iio/adc/
H A Dqcom-vadc-common.c13 /* Voltage to temperature */
52 * Voltage to temperature table for 100k pull up for NTCG104EF104 with
388 s64 voltage = 0, result = 0; in qcom_vadc_scale_volt() local
390 qcom_vadc_scale_calib(calib_graph, adc_code, absolute, &voltage); in qcom_vadc_scale_volt()
392 voltage = voltage * prescale->den; in qcom_vadc_scale_volt()
393 result = div64_s64(voltage, prescale->num); in qcom_vadc_scale_volt()
404 s64 voltage = 0; in qcom_vadc_scale_therm() local
407 qcom_vadc_scale_calib(calib_graph, adc_code, absolute, &voltage); in qcom_vadc_scale_therm()
410 voltage = div64_s64(voltage, 1000); in qcom_vadc_scale_therm()
414 voltage, result_mdec); in qcom_vadc_scale_therm()
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/OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/regulator/
H A Dpwm-regulator.txt6 Voltage Table: When in this mode, a voltage table (See below) of
7 predefined voltage <=> duty-cycle values must be
11 allow finer grained voltage selection are ignored and
13 the user if the assumptions made in continuous-voltage
16 Continuous Voltage: This mode uses the regulator's maximum and minimum
21 voltage-table mode above. This solution does make an
23 regulator voltage to run at half way between the
32 Only required for Voltage Table Mode:
33 - voltage-table: Voltage and Duty-Cycle table consisting of 2 cells
34 First cell is voltage in microvolts (uV)
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H A Dmax8997-regulator.txt1 * Maxim MAX8997 Voltage and Current Regulator
3 The Maxim MAX8997 is a multi-function device which includes voltage and
13 - max8997,pmic-buck1-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
14 units for buck1 when changing voltage using gpio dvs. Refer to [1] below
17 - max8997,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
18 units for buck2 when changing voltage using gpio dvs. Refer to [1] below
21 - max8997,pmic-buck5-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
22 units for buck5 when changing voltage using gpio dvs. Refer to [1] below
26 property is specified, the 'max8997,pmic-buck[1/2/5]-dvs-voltage'
27 property should specify atleast one voltage level (which would be a
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H A Dvctrl.txt1 Bindings for Voltage controlled regulators
7 - regulator-min-microvolt : smallest voltage consumers may set
8 - regulator-max-microvolt : largest voltage consumers may set
9 - ctrl-supply : The regulator supplying the control voltage.
10 - ctrl-voltage-range : an array of two integer values describing the range
11 (min/max) of the control voltage. The values specify
12 the control voltage needed to generate the corresponding
13 regulator-min/max-microvolt output voltage.
20 actual output voltage deviates beyond a certain
22 voltage. On larger voltage decreases this can occur
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H A Dregulator.yaml7 title: Voltage/Current Regulators
19 description: smallest voltage consumers may set
22 description: largest voltage consumers may set
25 description: Offset applied to voltages to compensate for voltage drops
65 reach the target voltage, plus/minus whatever tolerance the board
73 description: Settling time, in microseconds, for voltage change if regulator
74 have the constant time for any level voltage change. This is useful
75 when regulator have exponential voltage change.
78 description: Settling time, in microseconds, for voltage increase if
79 the regulator needs a constant time to settle after voltage increases
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/OK3568_Linux_fs/kernel/include/linux/regulator/
H A Dmachine.h24 * VOLTAGE: Regulator output voltage can be changed by software on this
66 * @uV: Default operating voltage during suspend, it can be adjusted
68 * @min_uV: Minimum suspend voltage may be set.
69 * @max_uV: Maximum suspend voltage may be set.
93 * @min_uV: Smallest voltage consumers may set.
94 * @max_uV: Largest voltage consumers may set.
96 * voltage drops.
104 * @max_uV_step: Max possible step change in voltage
113 * @apply_uV: Apply the voltage constraint when initialising.
114 * @ramp_disable: Disable ramp delay when initialising or when setting voltage.
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/OK3568_Linux_fs/u-boot/board/freescale/common/
H A Dvid.c28 * Compensate for a board specific voltage drop between regulator and SoC
69 /* Maximum loop count waiting for new voltage to take effect */
71 /* Maximum loop count waiting for the voltage to be stable */
80 /* If an INA220 chip is available, we can use it to read back the voltage
103 printf("VID: failed to read core voltage\n"); in read_voltage_from_INA220()
108 printf("VID: Core voltage sensor error\n"); in read_voltage_from_INA220()
111 debug("VID: bus voltage reads 0x%04x\n", vol_mon); in read_voltage_from_INA220()
123 /* read voltage from IR */
141 printf("VID: Core voltage sensor error\n"); in read_voltage_from_IR()
144 debug("VID: bus voltage reads 0x%02x\n", vol_mon); in read_voltage_from_IR()
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/OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/power/
H A Drockchip-io-domain.txt1 Rockchip SRAM for IO Voltage Domains:
14 general register file (GRF) in sync with the actual value of a voltage
18 - any logic for deciding what voltage we should set regulators to
24 driver. When that other software adjusted a regulator's voltage then
34 - "rockchip,px30-io-voltage-domain" for px30
35 - "rockchip,px30-pmu-io-voltage-domain" for px30 pmu-domains
36 - "rockchip,rk3188-io-voltage-domain" for rk3188
37 - "rockchip,rk3228-io-voltage-domain" for rk3228
38 - "rockchip,rk3288-io-voltage-domain" for rk3288
39 - "rockchip,rk3308-io-voltage-domain" for rk3308
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/OK3568_Linux_fs/kernel/drivers/hwmon/
H A Dltc4245.c61 /* Voltage registers */
109 /* Read the GPIO voltage from the GPIOADC register */ in ltc4245_update_gpios()
148 /* Read voltage registers -- 0x10 to 0x1c */ in ltc4245_update_device()
169 /* Return the voltage from the given register in millivolts */
174 u32 voltage = 0; in ltc4245_get_voltage() local
179 voltage = regval * 55; in ltc4245_get_voltage()
183 voltage = regval * 22; in ltc4245_get_voltage()
187 voltage = regval * 15; in ltc4245_get_voltage()
191 voltage = regval * -55; in ltc4245_get_voltage()
194 voltage = regval * 10; in ltc4245_get_voltage()
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/OK3568_Linux_fs/kernel/Documentation/power/regulator/
H A Doverview.rst2 Linux voltage and current regulator framework
9 voltage and current regulators.
12 in order to save power and prolong battery life. This applies to both voltage
13 regulators (where voltage output is controllable) and current sinks (where
29 some can control their output voltage and or current.
31 Input Voltage -> Regulator -> Output Voltage
43 Static: consumer does not change its supply voltage or
45 power supply. Its supply voltage is set by the hardware,
48 Dynamic: consumer needs to change its supply voltage or
100 - voltage output is in the range 800mV -> 3500mV.
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/OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/iio/afe/
H A Dvoltage-divider.txt1 Voltage divider
4 When an io-channel measures the midpoint of a voltage divider, the
5 interesting voltage is often the voltage over the full resistance
6 of the divider. This binding describes the voltage divider in such
24 - compatible : "voltage-divider"
25 - io-channels : Channel node of a voltage io-channel measuring Vout.
26 - output-ohms : Resistance Rout over which the output voltage is measured.
32 The system voltage is circa 12V, but divided down with a 22/222
33 voltage divider (R = 200 Ohms, Rout = 22 Ohms) and fed to an ADC.
36 compatible = "voltage-divider";
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