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/linux/Documentation/devicetree/bindings/iio/adc/
H A Dti,adc12138.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Texas Instruments ADC12138 and similar self-calibrating ADCs
10 - Akinobu Mita <akinobu.mita@gmail.com>
19 - ti,adc12130
20 - ti,adc12132
21 - ti,adc12138
34 vref-p-supply:
35 description: The regulator supply for positive analog voltage reference
[all …]
/linux/drivers/iio/dac/
H A Dad5764.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Analog devices AD5764, AD5764R, AD5744, AD5744R quad-channel
33 * struct ad5764_chip_info - chip specific information
34 * @int_vref: Value of the internal reference voltage in uV - 0 if external
44 * struct ad5764_state - driver instance specific data
47 * @vref_reg: vref supply regulators
90 .shift = 16 - (_bits), \
130 mutex_lock(&st->lock); in ad5764_write()
131 st->data[0].d32 = cpu_to_be32((reg << 16) | val); in ad5764_write()
133 ret = spi_write(st->spi, &st->data[0].d8[1], 3); in ad5764_write()
[all …]
H A Dad5360.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * multi-channel Digital to Analog Converters driver
50 * struct ad5360_chip_info - chip specific information
54 * @num_vrefs: number of vref supplies for the chip
65 * struct ad5360_state - driver instance specific data
68 * @vref_reg: vref supply regulators
115 .shift = 16 - (bits), \
175 /* The first groups have their own vref, while the remaining groups in ad5360_get_channel_vref_index()
176 * share the last vref */ in ad5360_get_channel_vref_index()
177 i = channel / st->chip_info->channels_per_group; in ad5360_get_channel_vref_index()
[all …]
H A Dad3552r-common.c1 // SPDX-License-Identifier: GPL-2.0+
3 // Copyright (c) 2010-2024 Analog Devices Inc.
18 [AD3552R_CH_OUTPUT_RANGE_NEG_5__5V] = { -5000, 5000 },
19 [AD3552R_CH_OUTPUT_RANGE_NEG_10__10V] = { -10000, 10000 }
28 [AD3542R_CH_OUTPUT_RANGE_NEG_2P5__7P5V] = { -2500, 7500 },
29 [AD3542R_CH_OUTPUT_RANGE_NEG_5__5V] = { -5000, 5000 }
41 u16 ad3552r_calc_custom_gain(u8 p, u8 n, s16 goffs) in ad3552r_calc_custom_gain() argument
45 FIELD_PREP(AD3552R_MASK_CH_GAIN_SCALING_N, n) | in ad3552r_calc_custom_gain()
54 s64 vref, tmp, common, offset, gn, gp; in ad3552r_get_custom_range() local
58 * Vmax = 2.5 - [(GainP + Offset / 1024) * 2.5 * Rfb * 1.03] in ad3552r_get_custom_range()
[all …]
H A Dad5064.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * AD5024, AD5025, AD5044, AD5045, AD5064, AD5064-1, AD5065, AD5625, AD5625R,
56 * enum ad5064_regmap_type - Register layout variant
68 * struct ad5064_chip_info - chip specific information
69 * @shared_vref: whether the vref supply is shared between channels
71 * internal vref.
91 * struct ad5064_state - driver instance specific data
94 * @vref_reg: vref supply regulators
197 return st->write(st, cmd, addr, val); in ad5064_write()
207 if (st->chip_info->regmap_type == AD5064_REGMAP_LTC) { in ad5064_sync_powerdown_mode()
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H A Dmcp4725.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * mcp4725.c - Support for Microchip MCP4725/6
9 * driver for the Microchip I2C 12-bit digital-to-analog converter (DAC)
10 * (7-bit I2C slave address 0x60, the three LSBs can be configured in
57 outbuf[0] = (data->powerdown_mode + 1) << 4; in mcp4725_suspend()
59 data->powerdown = true; in mcp4725_suspend()
61 ret = i2c_master_send(data->client, outbuf, 2); in mcp4725_suspend()
65 return -EIO; in mcp4725_suspend()
77 outbuf[0] = (data->dac_value >> 8) & 0xf; in mcp4725_resume()
78 outbuf[1] = data->dac_value & 0xff; in mcp4725_resume()
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H A Dad5449.c1 // SPDX-License-Identifier: GPL-2.0-only
7 * Author: Lars-Peter Clausen <lars@metafoo.de>
38 * struct ad5449_chip_info - chip specific information
50 * struct ad5449 - driver instance specific data
53 * @vref_reg: vref supply regulators
90 mutex_lock(&st->lock); in ad5449_write()
91 st->data[0] = cpu_to_be16((addr << 12) | val); in ad5449_write()
92 ret = spi_write(st->spi, st->data, 2); in ad5449_write()
93 mutex_unlock(&st->lock); in ad5449_write()
105 .tx_buf = &st->data[0], in ad5449_read()
[all …]
/linux/drivers/iio/adc/
H A Dad7766.c1 // SPDX-License-Identifier: GPL-2.0-or-later
69 struct iio_dev *indio_dev = pf->indio_dev; in ad7766_trigger_handler()
73 ret = spi_sync(ad7766->spi, &ad7766->msg); in ad7766_trigger_handler()
77 iio_push_to_buffers_with_timestamp(indio_dev, ad7766->data, in ad7766_trigger_handler()
78 pf->timestamp); in ad7766_trigger_handler()
80 iio_trigger_notify_done(indio_dev->trig); in ad7766_trigger_handler()
90 ret = regulator_bulk_enable(ARRAY_SIZE(ad7766->reg), ad7766->reg); in ad7766_preenable()
92 dev_err(&ad7766->spi->dev, "Failed to enable supplies: %d\n", in ad7766_preenable()
97 ret = clk_prepare_enable(ad7766->mclk); in ad7766_preenable()
99 dev_err(&ad7766->spi->dev, "Failed to enable MCLK: %d\n", ret); in ad7766_preenable()
[all …]
H A Dad7173.c1 // SPDX-License-Identifier: GPL-2.0+
7 * AD7172-2/AD7172-4/AD7173-8/AD7175-2
8 * AD7175-8/AD7176-2/AD7177-2
18 #include <linux/clk-provider.h>
147 (pin2) < st->info->num_voltage_in && \
148 (pin2) >= st->info->num_voltage_in_div)
222 24845000, 24845000, 20725000, 20725000, /* 0-3 */
223 15564000, 13841000, 10390000, 10390000, /* 4-7 */
224 4994000, 2499000, 1000000, 500000, /* 8-11 */
225 395500, 200000, 100000, 59890, /* 12-15 */
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H A Dti-ads7950.c1 // SPDX-License-Identifier: GPL-2.0
12 * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com/
36 * Device tree users encode that via the vref-supply regulator.
54 (((val) >> (dec)) & ((1 << (bits)) - 1))
61 (TI_ADS7950_MAN_CMD(TI_ADS7950_CR_WRITE | st->cmd_settings_bitmask))
64 (TI_ADS7950_GPIO_CMD(st->gpio_cmd_settings_bitmask))
84 * [0-3] GPIO signal
87 * [6] Sets Vref range1(2.5v) or range2(5v)
95 * [0-3] GPIO direction
96 * [4-6] Different GPIO alarm mode configurations
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H A Dad7768-1.c1 // SPDX-License-Identifier: GPL-2.0
3 * Analog Devices AD7768-1 SPI ADC driver
156 struct regulator *vref; member
185 shift = 32 - (8 * len); in ad7768_spi_reg_read()
186 st->data.d8[0] = AD7768_RD_FLAG_MSK(addr); in ad7768_spi_reg_read()
188 ret = spi_write_then_read(st->spi, st->data.d8, 1, in ad7768_spi_reg_read()
189 &st->data.d32, len); in ad7768_spi_reg_read()
193 return (be32_to_cpu(st->data.d32) >> shift); in ad7768_spi_reg_read()
200 st->data.d8[0] = AD7768_WR_FLAG_MSK(addr); in ad7768_spi_reg_write()
201 st->data.d8[1] = val & 0xFF; in ad7768_spi_reg_write()
[all …]
H A Dad7780.c1 // SPDX-License-Identifier: GPL-2.0
100 gpiod_set_value(st->powerdown_gpio, val); in ad7780_set_mode()
118 voltage_uv = regulator_get_voltage(st->reg); in ad7780_read_raw()
122 *val = voltage_uv * st->gain; in ad7780_read_raw()
123 *val2 = chan->scan_type.realbits - 1; in ad7780_read_raw()
124 st->int_vref_mv = voltage_uv; in ad7780_read_raw()
127 *val = -(1 << (chan->scan_type.realbits - 1)); in ad7780_read_raw()
130 *val = st->odr; in ad7780_read_raw()
136 return -EINVAL; in ad7780_read_raw()
146 const struct ad7780_chip_info *chip_info = st->chip_info; in ad7780_write_raw()
[all …]
H A Dti-adc108s102.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (c) 2013-2015 Intel Corporation.
29 * In case of ACPI, we use the hard-wired 5000 mV of the Galileo and IOT2000
31 * via the vref-supply regulator.
38 * chips. The ADC108S102 effectively returns a 12-bit result with the 2
39 * least-significant bits unset.
45 * 16-bit SPI command format:
47 * [13:11] 3-bit channel address
53 * 16-bit SPI response format:
55 * [11:0] 12-bit ADC sample (for ADC108S102, [1:0] will always be 0).
[all …]
H A Dti-ads1298.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2023 - 2024 Topic Embedded Products
69 #define ADS1298_REG_CHnSET(n) (0x05 + n) argument
94 /* For reading and writing registers, we need a 3-byte buffer */
96 /* Outputs status word and 'n' 24-bit samples, plus the command byte */
97 #define ADS1298_SPI_RDATA_BUFFER_SIZE(n) (((n) + 1) * 3 + 1) argument
119 * >2 = Multiple DRDY during transfer, lost rdata_xfer_busy - 2 samples
173 .tx_buf = priv->cmd_buffer, in ads1298_write_cmd()
174 .rx_buf = priv->cmd_buffer, in ads1298_write_cmd()
183 priv->cmd_buffer[0] = command; in ads1298_write_cmd()
[all …]
H A Dad7791.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Author: Lars-Peter Clausen <lars@metafoo.de>
71 .differential = (_channel2 == -1 ? 0 : 1), \
99 __AD7991_CHANNEL(_si, _channel, -1, _address, _bits, \
111 __AD7991_CHANNEL(_si, _channel, -1, _address, _bits, \
112 _storagebits, _shift, "supply", IIO_VOLTAGE, \
244 st->mode &= ~AD7791_MODE_SEL_MASK; in ad7791_set_mode()
245 st->mode |= AD7791_MODE_SEL(mode); in ad7791_set_mode()
247 return ad_sd_write_reg(sd, AD7791_REG_MODE, sizeof(st->mode), st->mode); in ad7791_set_mode()
263 bool unipolar = !!(st->mode & AD7791_MODE_UNIPOLAR); in ad7791_read_raw()
[all …]
H A Dti-ads131e08.c1 // SPDX-License-Identifier: GPL-2.0
3 * Texas Instruments ADS131E0x 4-, 6- and 8-Channel ADCs
166 ret = spi_write_then_read(st->spi, &cmd, 1, NULL, 0); in ads131e08_exec_cmd()
168 dev_err(&st->spi->dev, "Exec cmd(%02x) failed\n", cmd); in ads131e08_exec_cmd()
178 .tx_buf = &st->tx_buf, in ads131e08_read_reg()
181 .value = st->sdecode_delay_us, in ads131e08_read_reg()
185 .rx_buf = &st->rx_buf, in ads131e08_read_reg()
190 st->tx_buf[0] = ADS131E08_CMD_RREG(reg); in ads131e08_read_reg()
191 st->tx_buf[1] = 0; in ads131e08_read_reg()
193 ret = spi_sync_transfer(st->spi, transfer, ARRAY_SIZE(transfer)); in ads131e08_read_reg()
[all …]
/linux/sound/soc/codecs/
H A Des8328.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * es8328.c -- ES8328 ALSA SoC Audio driver
5 * Copyright 2014 Sutajio Ko-Usagi PTE LTD
51 /* regulator supplies for sgtl5000, VDDD is an optional external supply */
60 /* vddd is optional supply */
99 static const DECLARE_TLV_DB_SCALE(play_tlv, -3000, 100, 0);
100 static const DECLARE_TLV_DB_SCALE(dac_adc_tlv, -9600, 50, 0);
101 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
123 if (es8328->deemph) { in es8328_set_deemph()
126 if (abs(deemph_settings[i].rate - es8328->playback_fs) < in es8328_set_deemph()
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H A Dadau1701.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Author: Lars-Peter Clausen <lars@metafoo.de>
99 #define ADAU1707_CLKDIV_UNSET (-1U)
167 dev_err(dev, "Unsupported register address: %d\n", reg); in adau1701_register_size()
191 size = adau1701_register_size(&client->dev, reg); in adau1701_reg_write()
193 return -EINVAL; in adau1701_reg_write()
198 for (i = size + 1; i >= 2; --i) { in adau1701_reg_write()
209 return -EIO; in adau1701_reg_write()
222 size = adau1701_register_size(&client->dev, reg); in adau1701_reg_read()
224 return -EINVAL; in adau1701_reg_read()
[all …]
H A Dwm8400.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * wm8400.c -- WM8400 ALSA Soc Audio driver
5 * Copyright 2008-11 Wolfson Microelectronics PLC.
18 #include <linux/mfd/wm8400-audio.h>
19 #include <linux/mfd/wm8400-private.h>
32 .supply = "I2S1VDD",
35 .supply = "I2S2VDD",
38 .supply = "DCVDD",
41 .supply = "AVDD",
44 .supply = "FLLVDD",
[all …]
H A Dwm8955.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * wm8955.c -- WM8955 ALSA SoC Audio driver
50 { 2, 0x0079 }, /* R2 - LOUT1 volume */
51 { 3, 0x0079 }, /* R3 - ROUT1 volume */
52 { 5, 0x0008 }, /* R5 - DAC Control */
53 { 7, 0x000A }, /* R7 - Audio Interface */
54 { 8, 0x0000 }, /* R8 - Sample Rate */
55 { 10, 0x00FF }, /* R10 - Left DAC volume */
56 { 11, 0x00FF }, /* R11 - Right DAC volume */
57 { 12, 0x000F }, /* R12 - Bass control */
[all …]
/linux/drivers/mfd/
H A Dwm8350-core.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * wm8350-core.c -- Device access for Wolfson WM8350
27 #include <linux/mfd/wm8350/supply.h>
42 printk("\n"); \
65 return regmap_update_bits(wm8350->regmap, reg, mask, 0); in wm8350_clear_bits()
71 return regmap_update_bits(wm8350->regmap, reg, mask, mask); in wm8350_set_bits()
80 err = regmap_read(wm8350->regmap, reg, &data); in wm8350_reg_read()
82 dev_err(wm8350->dev, "read from reg R%d failed\n", reg); in wm8350_reg_read()
92 ret = regmap_write(wm8350->regmap, reg, val); in wm8350_reg_write()
95 dev_err(wm8350->dev, "write to reg R%d failed\n", reg); in wm8350_reg_write()
[all …]
/linux/arch/arm/boot/dts/st/
H A Dstm32mp15xx-dhcom-som.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
3 * Copyright (C) 2019-2020 Marek Vasut <marex@denx.de>
6 #include "stm32mp15-pinctrl.dtsi"
7 #include "stm32mp15xxaa-pinctrl.dtsi"
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/mfd/st,stpmic1.h>
24 reserved-memory {
25 #address-cells = <1>;
26 #size-cells = <1>;
30 compatible = "shared-dma-pool";
[all …]
/linux/drivers/input/touchscreen/
H A Dads7846.c1 // SPDX-License-Identifier: GPL-2.0-only
10 * - corgi_ts.c
11 * Copyright (C) 2004-2005 Richard Purdie
12 * - omap_ts.[hc], ads7846.h, ts_osk.c
39 * Support for ads7843 tested on Atmel at91sam926x-EK.
53 * note. The strength of filtering can be set in the board-* specific
76 * driver is used with DMA-based SPI controllers (like atmel_spi) on
77 * systems where main memory is not DMA-coherent (most non-x86 boards).
152 /* leave chip selected when we're done, for quicker re-select? */
159 /*--------------------------------------------------------------------------*/
[all …]
/linux/arch/arm/boot/dts/nxp/imx/
H A Dimx6ull-dhcom-som.dtsi1 // SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
6 #include "imx6ull-dhcor-som.dtsi"
10 /delete-property/ spi2;
11 /delete-property/ spi3;
28 stdout-path = "serial0:115200n8";
31 reg_ext_3v3_ref: regulator-ext-3v3-ref {
32 compatible = "regulator-fixed";
33 regulator-always-on;
34 regulator-max-microvolt = <3300000>;
35 regulator-min-microvolt = <3300000>;
[all …]
/linux/drivers/iio/pressure/
H A Dzpa2326.c1 // SPDX-License-Identifier: GPL-2.0-only
34 * - get device out of low power mode,
35 * - setup hardware sampling period,
36 * - at end of period, upon data ready interrupt: pop pressure samples out of
38 * - when no longer needed, stop sampling process by putting device into
70 /* 200 ms should be enough for the longest conversion time in one-shot mode. */
78 * struct zpa2326_frequency - Hardware sampling frequency descriptor
102 ARRAY_SIZE(zpa2326_sampling_frequencies) - 1]; in zpa2326_highest_frequency()
106 * struct zpa2326_private - Per-device internal private state
121 * @vref: Power / voltage reference.
[all …]

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