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/openbmc/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:
37 vref-n-supply:
[all …]
/openbmc/linux/Documentation/devicetree/bindings/iio/dac/
H A Dadi,ad3552r.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Nuno Sá <nuno.sa@analog.com>
16 https://www.analog.com/media/en/technical-documentation/data-sheets/ad3542r.pdf
17 https://www.analog.com/media/en/technical-documentation/data-sheets/ad3552r.pdf
22 - adi,ad3542r
23 - adi,ad3552r
28 spi-max-frequency:
31 reset-gpios:
[all …]
H A Ddpot-dac.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/dac/dpot-dac.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Peter Rosin <peda@axentia.se>
15 divided voltage is provided by a vref regulator.
17 .------.
18 .-----------. | |
19 | vref |--' .---.
20 | regulator |--. | |
[all …]
/openbmc/linux/drivers/iio/dac/
H A Dad3552r.c1 // SPDX-License-Identifier: GPL-2.0-only
103 #define AD3552R_REG_ADDR_CH_DAC_16B(ch) (0x2C - (1 - ch) * 2)
108 #define AD3552R_REG_ADDR_CH_INPUT_16B(ch) (0x36 - (1 - ch) * 2)
112 #define AD3552R_REG_ADDR_CH_DAC_24B(ch) (0x3D - (1 - ch) * 3)
117 #define AD3552R_REG_ADDR_CH_INPUT_24B(ch) (0x4B - (1 - ch) * 3)
134 /* Internal source with Vref I/O floating */
136 /* Internal source with Vref I/O at 2.5V */
138 /* External source with Vref I/O as input */
154 /* Range from -5 V to 5 V. Requires Rfb2x connection */
156 /* Range from -10 V to 10 V. Requires Rfb4x connection */
[all …]
H A Ddpot-dac.c1 // SPDX-License-Identifier: GPL-2.0
13 * divided voltage is provided by a vref regulator.
15 * .------.
16 * .-----------. | |
17 * | vref |--' .---.
18 * | regulator |--. | |
19 * '-----------' | | d |
20 * | | p |
22 * | | t |<---------+
24 * | '---' dac output voltage
[all …]
/openbmc/linux/drivers/iio/adc/
H A Dti-tlc4541.c1 // SPDX-License-Identifier: GPL-2.0-only
91 static irqreturn_t tlc4541_trigger_handler(int irq, void *p) in tlc4541_trigger_handler() argument
93 struct iio_poll_func *pf = p; in tlc4541_trigger_handler()
94 struct iio_dev *indio_dev = pf->indio_dev; in tlc4541_trigger_handler()
98 ret = spi_sync(st->spi, &st->scan_single_msg); in tlc4541_trigger_handler()
102 iio_push_to_buffers_with_timestamp(indio_dev, st->rx_buf, in tlc4541_trigger_handler()
106 iio_trigger_notify_done(indio_dev->trig); in tlc4541_trigger_handler()
112 int vref; in tlc4541_get_range() local
114 vref = regulator_get_voltage(st->reg); in tlc4541_get_range()
115 if (vref < 0) in tlc4541_get_range()
[all …]
H A Dmcp3911.c1 // SPDX-License-Identifier: GPL-2.0
3 * Driver for Microchip MCP3911, Two-channel Analog Front End
73 struct regulator *vref; member
91 reg = MCP3911_REG_READ(reg, adc->dev_addr); in mcp3911_read()
92 ret = spi_write_then_read(adc->spi, &reg, 1, val, len); in mcp3911_read()
97 *val >>= ((4 - len) * 8); in mcp3911_read()
98 dev_dbg(&adc->spi->dev, "reading 0x%x from register 0x%lx\n", *val, in mcp3911_read()
105 dev_dbg(&adc->spi->dev, "writing 0x%x to register 0x%x\n", val, reg); in mcp3911_write()
107 val <<= (3 - len) * 8; in mcp3911_write()
109 val |= MCP3911_REG_WRITE(reg, adc->dev_addr); in mcp3911_write()
[all …]
H A Drockchip_saradc.c1 // SPDX-License-Identifier: GPL-2.0-or-later
73 struct regulator *vref; member
89 writel_relaxed(8, info->regs + SARADC_DLY_PU_SOC); in rockchip_saradc_start_v1()
92 SARADC_CTRL_IRQ_ENABLE, info->regs + SARADC_CTRL); in rockchip_saradc_start_v1()
99 if (info->reset) in rockchip_saradc_start_v2()
100 rockchip_saradc_reset_controller(info->reset); in rockchip_saradc_start_v2()
102 writel_relaxed(0xc, info->regs + SARADC_T_DAS_SOC); in rockchip_saradc_start_v2()
103 writel_relaxed(0x20, info->regs + SARADC_T_PD_SOC); in rockchip_saradc_start_v2()
106 writel_relaxed(val, info->regs + SARADC2_END_INT_EN); in rockchip_saradc_start_v2()
111 writel(val, info->regs + SARADC2_CONV_CON); in rockchip_saradc_start_v2()
[all …]
H A Dad799x.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright (C) 2010-2011 Michael Hennerich, Analog Devices Inc.
7 * Copyright (C) 2008-2010 Jonathan Cameron
10 * Copyright (C) 2002-2004 Stefan Eletzhofer
101 * struct ad799x_chip_config - chip specific information
113 * struct ad799x_chip_info - chip specific information
128 struct regulator *vref; member
140 switch (st->id) { in ad799x_write_config()
143 return i2c_smbus_write_word_swapped(st->client, AD7998_CONF_REG, in ad799x_write_config()
148 return i2c_smbus_write_byte_data(st->client, AD7998_CONF_REG, in ad799x_write_config()
[all …]
H A Dad7923.c1 // SPDX-License-Identifier: GPL-2.0-only
47 #define EXTRACT(val, dec, bits) (((val) >> (dec)) & ((1 << (bits)) - 1))
97 .shift = 12 - (bits), \
172 for_each_set_bit(i, active_scan_mask, indio_dev->num_channels - 1) { in ad7923_update_scan_mode()
175 st->settings; in ad7923_update_scan_mode()
177 st->tx_buf[len++] = cpu_to_be16(cmd); in ad7923_update_scan_mode()
180 st->ring_xfer[0].tx_buf = &st->tx_buf[0]; in ad7923_update_scan_mode()
181 st->ring_xfer[0].len = len; in ad7923_update_scan_mode()
182 st->ring_xfer[0].cs_change = 1; in ad7923_update_scan_mode()
184 spi_message_init(&st->ring_msg); in ad7923_update_scan_mode()
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H A Dad7298.c1 // SPDX-License-Identifier: GPL-2.0-only
29 #define AD7298_CH(x) BIT(13 - (x)) /* channel select */
82 .scan_index = -1,
112 scan_count = bitmap_weight(active_scan_mask, indio_dev->masklength); in ad7298_update_scan_mode()
114 command = AD7298_WRITE | st->ext_ref; in ad7298_update_scan_mode()
120 st->tx_buf[0] = cpu_to_be16(command); in ad7298_update_scan_mode()
123 st->ring_xfer[0].tx_buf = &st->tx_buf[0]; in ad7298_update_scan_mode()
124 st->ring_xfer[0].len = 2; in ad7298_update_scan_mode()
125 st->ring_xfer[0].cs_change = 1; in ad7298_update_scan_mode()
126 st->ring_xfer[1].tx_buf = &st->tx_buf[1]; in ad7298_update_scan_mode()
[all …]
H A Dti-ads8688.c1 // SPDX-License-Identifier: GPL-2.0-only
44 * enum ads8688_range - ADS8688 reference voltage range
45 * @ADS8688_PLUSMINUS25VREF: Device is configured for input range ±2.5 * VREF
46 * @ADS8688_PLUSMINUS125VREF: Device is configured for input range ±1.25 * VREF
47 * @ADS8688_PLUSMINUS0625VREF: Device is configured for input range ±0.625 * VREF
48 * @ADS8688_PLUS25VREF: Device is configured for input range 0 - 2.5 * VREF
49 * @ADS8688_PLUS125VREF: Device is configured for input range 0 - 1.25 * VREF
93 .offset = -(1 << (ADS8688_REALBITS - 1)),
98 .offset = -(1 << (ADS8688_REALBITS - 1)),
103 .offset = -(1 << (ADS8688_REALBITS - 1)),
[all …]
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
[all …]
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 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 Dad7766.c1 // SPDX-License-Identifier: GPL-2.0-or-later
66 static irqreturn_t ad7766_trigger_handler(int irq, void *p) in ad7766_trigger_handler() argument
68 struct iio_poll_func *pf = p; in ad7766_trigger_handler()
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()
[all …]
H A Dad7476.c1 // SPDX-License-Identifier: GPL-2.0
4 * TI ADC081S/ADC101S/ADC121S 8/10/12-bit SPI ADC driver
80 if (!st->convst_gpio) in ad7091_convst()
83 gpiod_set_value(st->convst_gpio, 0); in ad7091_convst()
85 gpiod_set_value(st->convst_gpio, 1); in ad7091_convst()
89 static irqreturn_t ad7476_trigger_handler(int irq, void *p) in ad7476_trigger_handler() argument
91 struct iio_poll_func *pf = p; in ad7476_trigger_handler()
92 struct iio_dev *indio_dev = pf->indio_dev; in ad7476_trigger_handler()
98 b_sent = spi_sync(st->spi, &st->msg); in ad7476_trigger_handler()
102 iio_push_to_buffers_with_timestamp(indio_dev, st->data, in ad7476_trigger_handler()
[all …]
H A Dmax1118.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * MAX1117/MAX1118/MAX1119 8-bit, dual-channel ADCs driver
7 * Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX1117-MAX1119.pdf
13 * ------ --------- -----------
14 * nCS --> CNVST
15 * SCK --> SCLK
16 * MISO <-- DOUT
17 * ------ --------- -----------
98 .rx_buf = &adc->data, in max1118_read()
105 ret = spi_sync_transfer(adc->spi, xfers + 1, 2); in max1118_read()
[all …]
H A Dti-adc12138.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * ADC12130/ADC12132/ADC12138 12-bit plus sign ADC driver
132 .tx_buf = adc->tx_buf, in adc12138_mode_programming()
133 .rx_buf = adc->rx_buf, in adc12138_mode_programming()
139 if (adc->id != adc12138) in adc12138_mode_programming()
142 adc->tx_buf[0] = mode; in adc12138_mode_programming()
144 ret = spi_sync_transfer(adc->spi, &xfer, 1); in adc12138_mode_programming()
148 memcpy(rx_buf, adc->rx_buf, len); in adc12138_mode_programming()
172 u8 mode = (ch_to_mux[channel->channel] << 4) | in __adc12138_start_conv()
173 (channel->differential ? 0 : 0x80); in __adc12138_start_conv()
[all …]
H A Dmax11410.c1 // SPDX-License-Identifier: GPL-2.0-only
175 /* This driver only needs to write 8-bit registers */ in max11410_write_reg()
177 return -EINVAL; in max11410_write_reg()
179 return regmap_write(st->regmap, reg, val); in max11410_write_reg()
188 ret = regmap_bulk_read(st->regmap, reg, &st->scan.data, 3); in max11410_read_reg()
192 *val = get_unaligned_be24(&st->scan.data); in max11410_read_reg()
196 return regmap_read(st->regmap, reg, val); in max11410_read_reg()
204 return st->avdd; in max11410_get_vrefp()
206 return st->vrefp[refsel]; in max11410_get_vrefp()
215 return st->vrefn[refsel]; in max11410_get_vrefn()
[all …]
H A Dmax1363.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright (C) 2008-2010 Jonathan Cameron
7 * Copyright (C) 2002-2004 Stefan Eletzhofer
51 /* think about including max11600 etc - more settings */
58 /* max1363 only - though don't care on others.
79 /* max123{6-9} only */
82 /* max1363 only - merely part of channel selects or don't care for others */
87 /* max1363 strictly 0x06 - but doesn't matter */
94 * struct max1363_mode - scan mode information
122 * struct max1363_chip_info - chip specifc information
[all …]
/openbmc/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).
133 bool stopped; /* P: lock */
134 bool disabled; /* P: lock */
[all …]
/openbmc/u-boot/drivers/adc/
H A Dadc-uclass.c1 // SPDX-License-Identifier: GPL-2.0+
4 * Przemyslaw Marczak <p.marczak@samsung.com>
12 #include <dm/device-internal.h>
13 #include <dm/uclass-internal.h>
36 * 1-st and 3-rd are valid, then channel mask is: 0b1010, so request in check_channel()
39 if ((uc_pdata->channel_mask >= mask) && (uc_pdata->channel_mask & mask)) in check_channel()
43 __FILE__, caller_function, dev->name); in check_channel()
45 return -EINVAL; in check_channel()
54 if (uc_pdata->vdd_supply) { in adc_supply_enable()
56 ret = regulator_set_enable(uc_pdata->vdd_supply, true); in adc_supply_enable()
[all …]
/openbmc/linux/arch/arm/boot/dts/aspeed/
H A Daspeed-bmc-ufispace-ncplite.dts1 // SPDX-License-Identifier: GPL-2.0-or-later
3 /dts-v1/;
5 #include "aspeed-g6.dtsi"
6 #include <dt-bindings/i2c/i2c.h>
7 #include <dt-bindings/gpio/aspeed-gpio.h>
11 compatible = "ufispace,ncplite-bmc", "aspeed,ast2600";
18 stdout-path = &uart5;
27 iio-hwmon {
28 compatible = "iio-hwmon";
29 io-channels = <&adc0 0>, <&adc0 1>, <&adc0 2>, <&adc0 3>,
[all …]
/openbmc/linux/sound/soc/codecs/
H A Drt298.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * rt298.c -- RT298 ALSA SoC audio codec driver
23 #include <sound/soc-dapm.h>
200 snd_soc_component_write(component, rt298->index_cache[i].reg, in rt298_index_sync()
201 rt298->index_cache[i].def); in rt298_index_sync()
227 if (!rt298->component) in rt298_jack_detect()
228 return -EINVAL; in rt298_jack_detect()
230 dapm = snd_soc_component_get_dapm(rt298->component); in rt298_jack_detect()
232 if (rt298->pdata.cbj_en) { in rt298_jack_detect()
233 regmap_read(rt298->regmap, RT298_GET_HP_SENSE, &buf); in rt298_jack_detect()
[all …]

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