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/freebsd/sys/contrib/device-tree/Bindings/iio/dac/
H A Dmicrochip,mcp4725.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
24 For the mcp4726 it will be used as the reference voltage if vref-supply
27 vref-supply:
29 Vref pin is used as a voltage reference when this supply is specified.
31 microchip,vref-buffered:
34 Enable buffering of the external Vref pin. This boolean is not valid
35 without the vref-supply. Quoting the datasheet: This is offered in
48 vref-supply: false
62 - vref-supply
67 - vref-supply
[all …]
H A Dadi,ad5064.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
31 - adi,ad5628-2
33 - adi,ad5648-2
35 - adi,ad5666-2
37 - adi,ad5668-2
43 - adi,ad5625r-2v5
46 - adi,ad5627r-2v5
48 - adi,ad5629-2
51 - adi,ad5645r-2v5
54 - adi,ad5665r-2v5
[all …]
H A Dad5592r.txt49 - vref-supply: Phandle to the external reference voltage supply. This should
50 only be set if there is an external reference voltage connected to the VREF
55 - #gpio-cells: Should be 2. The first cell is the GPIO number and the second
62 vref: regulator-vref {
64 regulator-name = "vref-ad559x";
73 #gpio-cells = <2>;
80 vref-supply = <&vref>; /* optional */
92 channel@2 {
93 reg = <2>;
130 #gpio-cells = <2>;
[all …]
H A Dlltc,ltc2632.yaml1 # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
44 vref-supply:
47 only be set if there is an external reference voltage connected to the VREF
58 vref: regulator-vref {
60 regulator-name = "vref-ltc2632";
74 vref-supply = <&vref>;
H A Dst,stm32-dac.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
39 vref-supply:
40 description: Phandle to the vref input analog reference voltage.
50 maxItems: 2
59 - vref-supply
64 "^dac@[1-2]+$":
75 description: Must be either 1 or 2, to define (single) channel in use
76 enum: [1, 2]
97 vref-supply = <&vref>;
107 dac@2 {
[all …]
H A Ddpot-dac.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
15 divided voltage is provided by a vref regulator.
19 | vref |--' .---.
34 vref-supply:
50 - vref-supply
60 vref-supply = <&reg_3v3>;
H A Dti,dac082s085.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
10 A family of Texas Instruments 8/10/12-bit 2/4-channel DACs
33 vref-supply:
39 - vref-supply
54 vref_2v5_reg: regulator-vref {
56 regulator-name = "2v5";
70 vref-supply = <&vref_2v5_reg>;
H A Dadi,ad5449.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
30 VREF-supply: true
50 VREF-supply: true
54 - VREF-supply
65 VREF-supply: false
82 VREF-supply = <&dac_ref>;
H A Dti-dac082s085.txt1 Texas Instruments 8/10/12-bit 2/4-channel DAC driver
14 - vref-supply: Phandle to the external reference voltage supply.
20 vref_2v5_reg: regulator-vref {
22 regulator-name = "2v5";
33 vref-supply = <&vref_2v5_reg>;
/freebsd/sys/contrib/device-tree/Bindings/sound/
H A Dnuvoton,nau8325.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
22 nuvoton,vref-impedance-ohms:
24 The vref impedance to be used in ohms. Middle of voltage enables
25 Tie-Off selection options. Due to the high impedance of the VREF
30 nuvoton,dac-vref-microvolt:
32 The DAC vref to be used in voltage. DAC reference voltage setting. Can
75 nuvoton,vref-impedance-ohms = <125000>;
76 nuvoton,dac-vref-microvolt = <2880000>;
H A Dtlv320adcx140.yaml1 # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
16 converter (ADC) with analog inputs supporting up to 2V RMS. The TLV320ADCX140
50 0 - Mic bias is set to VREF
51 1 - Mic bias is set to VREF × 1.096
56 ti,vref-source:
59 0 - Set VREF to 2.75V
60 1 - Set VREF to 2.5V
61 2 - Set VREF to 1.375V
63 enum: [0, 1, 2]
[all...]
H A Dti,tlv320adcx140.yaml1 # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
16 converter (ADC) with analog inputs supporting up to 2V RMS. The TLV320ADCX140
50 0 - Mic bias is set to VREF
51 1 - Mic bias is set to VREF × 1.096
56 ti,vref-source:
59 0 - Set VREF to 2.75V
60 1 - Set VREF to 2.5V
61 2 - Set VREF to 1.375V
63 enum: [0, 1, 2]
75 PDMIN1 - PDMCLK latching edge used for channel 1 and 2 data
[all …]
/freebsd/sys/contrib/device-tree/Bindings/iio/adc/
H A Dadi,ad7476.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
61 datasheets. If there is no separate vref-supply, then this is needed
68 vref-supply:
107 # Devices with a vref
120 vref-supply: true
123 vref-supply: false
124 # Devices with a vref where it is not optional
136 - vref-supply
177 vref-supply = <&adc_vref>;
H A Dti,adc12138.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
13 13 bit ADCs with 1, 2 or 8 inputs and self calibrating circuitry to
34 vref-p-supply:
37 vref-n-supply:
40 (Note that this must not go below GND or exceed vref-p)
61 - vref-p-supply
81 vref-p-supply = <&ldo4_reg>;
H A Dadi,ad7173.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
35 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7172-2.pdf
38 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7175-2.pdf
40 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7176-2.pdf
41 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7177-2.pdf
52 - adi,ad7172-2
55 - adi,ad7175-2
57 - adi,ad7176-2
58 - adi,ad7177-2
94 const: 2
[all …]
H A Dadi,ad7191.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
49 vref-supply:
50 description: Vref voltage supply
56 minItems: 2
57 maxItems: 2
74 minItems: 2
75 maxItems: 2
102 - vref-supply
143 vref-supply = <&vref>;
H A Dmaxim,max1118.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
28 vref-supply:
40 - vref-supply
43 vref-supply: false
60 vref-supply = <&adc_vref>;
H A Dsigma-delta-modulator.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
27 vref-supply:
28 description: Phandle to the vref input analog reference voltage.
31 vref-supply: [ '#io-backend-cells' ]
47 vref-supply = <&vdd_adc>;
H A Dadi,ad7949.yaml33 vref-supply:
42 external reference defined by vrefin-supply (or vref-supply).
43 vrefin-supply will take precedence over vref-supply if both are defined.
82 vref-supply = <&vdd_supply>;
94 adc@2 {
99 reg = <2>;
H A Daspeed,ast2600-adc.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
24 • Support 2 Internal reference voltage 1.2v or 2.5v.
51 vref-supply:
55 aspeed,int-vref-microvolt:
83 aspeed,int-vref-microvolt = <2500000>;
91 aspeed,int-vref-microvolt = <2500000>;
H A Dmicrochip,mcp3201.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
38 vref-supply:
51 - vref-supply
67 vref-supply = <&vref_reg>;
75 vref-supply = <&vref_reg>;
H A Dst,stm32-adc.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
43 maxItems: 2
47 maxItems: 2
59 maxItems: 2
68 vref-supply:
69 description: Phandle to the vref input analog reference voltage.
100 maxItems: 2
142 maxItems: 2
173 maxItems: 2
201 maxItems: 2
[all …]
/freebsd/sys/contrib/device-tree/src/arm64/freescale/
H A Dimx8mq-nitrogen.dts61 reg_vref_0v9: regulator-vref-0v9 {
63 regulator-name = "vref-0v9";
68 reg_vref_1v8: regulator-vref-1v8 {
70 regulator-name = "vref-1v8";
75 reg_vref_2v5: regulator-vref-2v5 {
77 regulator-name = "vref-2v5";
82 reg_vref_3v3: regulator-vref-3v3 {
84 regulator-name = "vref
[all...]
/freebsd/share/man/man9/
H A Dvref.914 .\" 2. Redistributions in binary form must reproduce the above copyright
33 .Nm vref , vrefl
39 .Fn vref "struct vnode *vp"
46 .Bl -tag -width 2n
59 .Fn vref
63 .Fn vref
/freebsd/sys/contrib/device-tree/Bindings/input/touchscreen/
H A Dti,ads7843.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
62 ti,keep-vref-on:
65 Set to keep Vref on for differential measurements as well.
105 ti,vref-delay-usecs:
108 Vref supply delay in usecs, 0 for external Vref.
110 ti,vref-mv:
113 The VREF voltage, in millivolts.

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