| /Linux-v5.10/Documentation/devicetree/bindings/iio/adc/ |
| D | st,stm32-adc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: "http://devicetree.org/schemas/iio/adc/st,stm32-adc.yaml#"
5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
7 title: STMicroelectronics STM32 ADC bindings
10 STM32 ADC is a successive approximation analog-to-digital converter.
11 It has several multiplexed input channels. Conversions can be performed
12 in single, continuous, scan or discontinuous mode. Result of the ADC is
13 stored in a left-aligned or right-aligned 32-bit data register.
17 voltage goes beyond the user-defined, higher or lower thresholds.
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| D | st,stm32-dfsdm-adc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/st,stm32-dfsdm-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 DFSDM ADC device driver
10 - Fabrice Gasnier <fabrice.gasnier@st.com>
11 - Olivier Moysan <olivier.moysan@st.com>
14 STM32 DFSDM ADC is a sigma delta analog-to-digital converter dedicated to
17 - Sigma delta modulators (motor control, metering...)
18 - PDM microphones (audio digital microphone)
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| D | adi,ad7124.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/iio/adc/adi,ad7124.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Analog Devices AD7124 ADC device driver
11 - Stefan Popa <stefan.popa@analog.com>
14 Bindings for the Analog Devices AD7124 ADC device. Datasheet can be
16 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7124-8.pdf
21 - adi,ad7124-4
22 - adi,ad7124-8
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| D | qcom,pm8xxx-xoadc.txt | 3 The Qualcomm PM8xxx PMICs contain a HK/XO ADC (Housekeeping/Crystal
4 oscillator ADC) encompassing PM8018, PM8038, PM8058 and PM8921.
8 - compatible: should be one of:
9 "qcom,pm8018-adc"
10 "qcom,pm8038-adc"
11 "qcom,pm8058-adc"
12 "qcom,pm8921-adc"
14 - reg: should contain the ADC base address in the PMIC, typically
17 - xoadc-ref-supply: should reference a regulator that can supply
21 The following required properties are standard for IO channels, see
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| D | cosmic,10001-adc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/cosmic,10001-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Cosmic Circuits CC-10001 ADC
10 - Jonathan Cameron <jic23@kernel.org>
13 Cosmic Circuits 10001 10-bit ADC device.
17 const: cosmic,10001-adc
22 adc-reserved-channels:
25 Bitmask of reserved channels, i.e. channels that cannot be
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| D | at91_adc.txt | 1 * AT91's Analog to Digital Converter (ADC)
4 - compatible: Should be "atmel,<chip>-adc"
6 - reg: Should contain ADC registers location and length
7 - interrupts: Should contain the IRQ line for the ADC
8 - clock-names: tuple listing input clock names.
10 - clocks: phandles to input clocks.
11 - atmel,adc-channels-used: Bitmask of the channels muxed and enabled for this
13 - atmel,adc-startup-time: Startup Time of the ADC in microseconds as
15 - atmel,adc-vref: Reference voltage in millivolts for the conversions
16 - atmel,adc-res: List of resolutions in bits supported by the ADC. List size
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| D | adi,ad7292.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/adi,ad7292.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices AD7292 10-Bit Monitor and Control System
10 - Marcelo Schmitt <marcelo.schmitt1@gmail.com>
13 Analog Devices AD7292 10-Bit Monitor and Control System with ADC, DACs,
17 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7292.pdf
22 - adi,ad7292
27 vref-supply:
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| D | renesas,gyroadc.txt | 1 * Renesas R-Car GyroADC device driver
5 are sampled by the GyroADC block in a round-robin fashion and the result
9 - compatible: Should be "<soc-specific>", "renesas,rcar-gyroadc".
10 The <soc-specific> should be one of:
11 renesas,r8a7791-gyroadc - for the GyroADC block present
13 renesas,r8a7792-gyroadc - for the GyroADC with interrupt
15 - reg: Address and length of the register set for the device
16 - clocks: References to all the clocks specified in the clock-names
18 Documentation/devicetree/bindings/clock/clock-bindings.txt.
19 - clock-names: Shall contain "fck". The "fck" is the GyroADC block clock.
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| D | qcom,spmi-vadc.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/qcom,spmi-vadc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Qualcomm's SPMI PMIC ADC
10 - Andy Gross <agross@kernel.org>
11 - Bjorn Andersson <bjorn.andersson@linaro.org>
14 SPMI PMIC voltage ADC (VADC) provides interface to clients to read
15 voltage. The VADC is a 15-bit sigma-delta ADC.
16 SPMI PMIC5/PMIC7 voltage ADC (ADC) provides interface to clients to read
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| /Linux-v5.10/Documentation/devicetree/bindings/input/touchscreen/ |
| D | resistive-adc-touch.txt | 1 Generic resistive touchscreen ADC
5 - compatible: must be "resistive-adc-touch"
6 The device must be connected to an ADC device that provides channels for
8 Refer to ../iio/iio-bindings.txt for details
9 - iio-channels: must have at least two channels connected to an ADC device.
10 These should correspond to the channels exposed by the ADC device and should
11 have the right index as the ADC device registers them. These channels
13 - iio-channel-names: must have all the channels' names. Mandatory channels
17 - iio-channels: The third channel named "pressure" is optional and can be
18 used if the ADC device also measures pressure besides position.
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| D | ti-tsc-adc.txt | 1 * TI - TSC ADC (Touschscreen and analog digital converter)
5 - mfd
7 "ti,am3359-tscadc" for AM335x/AM437x SoCs
8 "ti,am654-tscadc", "ti,am3359-tscadc" for AM654 SoCs
9 - child "tsc"
10 compatible: Should be "ti,am3359-tsc".
13 ti,x-plate-resistance: X plate resistance
14 ti,coordinate-readouts: The sequencer supports a total of 16
22 remaining 4 can be used by the ADC.
23 ti,wire-config: Different boards could have a different order for
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| /Linux-v5.10/drivers/iio/adc/ |
| D | mcp320x.c | 1 // SPDX-License-Identifier: GPL-2.0-only
8 * Driver for following ADC chips from Microchip Technology's:
14 * ------------
20 * ------------
23 * ------------
65 const struct iio_chan_spec *channels; member
72 * struct mcp320x - Microchip SPI ADC instance
74 * @msg: SPI message to select a channel and receive a value from the ADC
80 * @chip_info: ADC properties
81 * @tx_buf: buffer for @transfer[0] (not used on single-channel converters)
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| D | stm32-adc.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * This file is part of STM32 ADC driver
5 * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
11 #include <linux/dma-mapping.h>
15 #include <linux/iio/timer/stm32-lptim-trigger.h>
16 #include <linux/iio/timer/stm32-timer-trigger.h>
29 #include "stm32-adc-core.h"
34 /* BOOST bit must be set on STM32H7 when ADC clock is above 20MHz */
37 #define STM32_ADC_CH_MAX 20 /* max number of channels */
55 /* extsel - trigger mux selection value */
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| D | qcom-pm8xxx-xoadc.c | 1 // SPDX-License-Identifier: GPL-2.0-only
7 * specific-purpose and general purpose ADC converters and channels.
24 #include "qcom-vadc-common.h"
28 * Qualcomm tree. Their kernel has two out-of-tree drivers for the ADC:
29 * drivers/misc/pmic8058-xoadc.c
30 * drivers/hwmon/pm8xxx-adc.c
58 /* Proper ADC registers */
100 * On a later ADC the decimation factors are defined as
124 * Physical channels which MUST exist on all PM variants in order to provide
156 * struct xoadc_channel - encodes channel properties and defaults
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| D | ti-adc084s021.c | 1 // SPDX-License-Identifier: GPL-2.0-only
5 * Driver for Texas Instruments' ADC084S021 ADC chip.
31 __be16 channels[4]; member
39 __be16 rx_buf[5]; /* First 16-bits are trash */
68 * Read an ADC channel and return its value.
70 * @adc: The ADC SPI data.
73 static int adc084s021_adc_conversion(struct adc084s021 *adc, void *data) in adc084s021_adc_conversion() argument
75 int n_words = (adc->spi_trans.len >> 1) - 1; /* Discard first word */ in adc084s021_adc_conversion()
80 ret = spi_sync(adc->spi, &adc->message); in adc084s021_adc_conversion()
85 *(p + i) = adc->rx_buf[i + 1]; in adc084s021_adc_conversion()
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| D | ti-adc0832.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * ADC0831/ADC0832/ADC0834/ADC0838 8-bit ADC driver
7 * Datasheet: https://www.ti.com/lit/ds/symlink/adc0832-n.pdf
33 * Max size needed: 16x 1 byte ADC data + 8 bytes timestamp
34 * May be shorter if not all channels are enabled subject
120 static int adc0831_adc_conversion(struct adc0832 *adc) in adc0831_adc_conversion() argument
122 struct spi_device *spi = adc->spi; in adc0831_adc_conversion()
125 ret = spi_read(spi, &adc->rx_buf, 2); in adc0831_adc_conversion()
130 * Skip TRI-STATE and a leading zero in adc0831_adc_conversion()
132 return (adc->rx_buf[0] << 2 & 0xff) | (adc->rx_buf[1] >> 6); in adc0831_adc_conversion()
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| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 # ADC drivers
10 bool "ST-Ericsson AB8500 GPADC driver"
25 tristate "Analog Devices AD7091R5 ADC Driver"
29 Say yes here to build support for Analog Devices AD7091R-5 ADC.
32 tristate "Analog Devices AD7124 and similar sigma-delta ADCs driver"
36 Say yes here to build support for Analog Devices AD7124-4 and AD7124-8
37 SPI analog to digital converters (ADC).
43 tristate "Analog Devices AD7190 AD7192 AD7193 AD7195 ADC driver"
48 AD7192, AD7193 or AD7195 SPI analog to digital converters (ADC).
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| D | ti_am335x_adc.c | 2 * TI ADC MFD driver
4 * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
34 #include <linux/dma-mapping.h>
53 int channels; member
62 static unsigned int tiadc_readl(struct tiadc_device *adc, unsigned int reg) in tiadc_readl() argument
64 return readl(adc->mfd_tscadc->tscadc_base + reg); in tiadc_readl()
67 static void tiadc_writel(struct tiadc_device *adc, unsigned int reg, in tiadc_writel() argument
70 writel(val, adc->mfd_tscadc->tscadc_base + reg); in tiadc_writel()
77 step_en = ((1 << adc_dev->channels) - 1); in get_adc_step_mask()
78 step_en <<= TOTAL_STEPS - adc_dev->channels + 1; in get_adc_step_mask()
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| D | stm32-dfsdm-adc.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * This file is the ADC part of the STM32 DFSDM driver
5 * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
10 #include <linux/dma-mapping.h>
11 #include <linux/iio/adc/stm32-dfsdm-adc.h>
13 #include <linux/iio/hw-consumer.h>
15 #include <linux/iio/timer/stm32-lptim-trigger.h>
16 #include <linux/iio/timer/stm32-timer-trigger.h>
27 #include "stm32-dfsdm.h"
42 /* Limit filter output resolution to 31 bits. (i.e. sample range is +/-2^30) */
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| /Linux-v5.10/Documentation/devicetree/bindings/iio/ |
| D | iio-bindings.txt | 2 from Lars-Peter Clausen [1].
4 Sources of IIO channels can be represented by any node in the device
10 value of a #io-channel-cells property in the IIO provider node.
12 [1] https://marc.info/?l=linux-iio&m=135902119507483&w=2
17 #io-channel-cells: Number of cells in an IIO specifier; Typically 0 for nodes
27 adc: voltage-sensor@35 {
30 #io-channel-cells = <1>;
36 adc@35 {
37 compatible = "some-vendor,some-adc";
40 adc1: iio-device@0 {
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| /Linux-v5.10/drivers/hwmon/ |
| D | adcxx.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
11 * ADC<bb><c>S<sss>, where
13 * * c is the number of channels (1, 2, 4, 8)
18 * http://www.national.com/ds/DC/ADC<bb><c>S<sss>.pdf
32 #include <linux/hwmon-sysfs.h>
42 u32 channels; member
52 struct adcxx *adc = spi_get_drvdata(spi); in adcxx_show() local
58 if (mutex_lock_interruptible(&adc->lock)) in adcxx_show()
59 return -ERESTARTSYS; in adcxx_show()
61 if (adc->channels == 1) { in adcxx_show()
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| /Linux-v5.10/Documentation/devicetree/bindings/input/ |
| D | adc-joystick.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 # Copyright 2019-2020 Artur Rojek
4 ---
5 $id: "http://devicetree.org/schemas/input/adc-joystick.yaml#"
6 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
8 title: ADC attached joystick
11 - Artur Rojek <contact@artur-rojek.eu>
14 Bindings for joystick devices connected to ADC controllers supporting
19 const: adc-joystick
21 io-channels:
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| /Linux-v5.10/arch/arm/boot/dts/ |
| D | cros-adc-thermistors.dtsi | 1 // SPDX-License-Identifier: GPL-2.0-only
4 * children of the IIO based ADC.
12 &adc {
15 pullup-uv = <1800000>;
16 pullup-ohm = <47000>;
17 pulldown-ohm = <0>;
18 io-channels = <&adc 3>;
22 pullup-uv = <1800000>;
23 pullup-ohm = <47000>;
24 pulldown-ohm = <0>;
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| /Linux-v5.10/Documentation/hwmon/ |
| D | da9055.rst | 14 -----------
16 The DA9055 provides an Analogue to Digital Converter (ADC) with 10 bits
20 the input of the ADC during the conversion.
22 The ADC is used to measure the following inputs:
24 - Channel 0: VDDOUT - measurement of the system voltage
25 - Channel 1: ADC_IN1 - high impedance input (0 - 2.5V)
26 - Channel 2: ADC_IN2 - high impedance input (0 - 2.5V)
27 - Channel 3: ADC_IN3 - high impedance input (0 - 2.5V)
28 - Channel 4: Internal Tjunc. - sense (internal temp. sensor)
31 chip junction temperature and auxiliary channels voltages.
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| /Linux-v5.10/include/linux/iio/adc/ |
| D | adi-axi-adc.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Analog Devices Generic AXI ADC IP core driver/library
6 * Copyright 2012-2020 Analog Devices Inc.
15 * struct adi_axi_adc_chip_info - Chip specific information
18 * @channels Channel specifications of type @struct axi_adc_chan_spec
19 * @num_channels Number of @channels
28 const struct iio_chan_spec *channels; member
38 * struct adi_axi_adc_conv - data of the ADC attached to the AXI ADC
39 * @chip_info chip info details for the client ADC
40 * @preenable_setup op to run in the client before enabling the AXI ADC
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