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/linux/Documentation/devicetree/bindings/iio/adc/
H A Dti,tsc2046.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Oleksij Rempel <o.rempel@pengutronix.de>
18 - ti,tsc2046e-adc
26 vref-supply:
29 "#io-channel-cells":
32 '#address-cells':
35 '#size-cells':
39 - compatible
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H A Dadi,axi-adc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/adi,axi-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Michael Hennerich <michael.hennerich@analog.com>
18 to the data-lines of the ADC and handle the streaming of data into
26 - AXI AD7606x: specialized version of the IP core for all the chips from
37 - adi,axi-adc-10.0.a
38 - adi,axi-ad408x
39 - adi,axi-ad7606x
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/linux/arch/arm/boot/dts/nxp/imx/
H A Dimx6qdl-skov-cpu-revc.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
7 compatible = "resistive-adc-touch";
8 io-channels = <&adc_ts 1>, <&adc_ts 3>, <&adc_ts 4>, <&adc_ts 5>;
9 io-channel-names = "y", "z1", "z2", "x";
10 touchscreen-min-pressure = <65000>;
11 touchscreen-inverted-y;
12 touchscreen-swapped-x-y;
13 touchscreen-x-plate-ohms = <300>;
14 touchscreen-y-plate-ohms = <800>;
19 pinctrl-names = "default";
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H A Dimx6dl-plym2m.dts1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
7 /dts-v1/;
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/leds/common.h>
17 stdout-path = &uart4;
21 compatible = "pwm-backlight";
23 brightness-levels = <0 1000>;
24 num-interpolated-steps = <20>;
25 default-brightness-level = <19>;
26 power-supply = <&reg_12v0>;
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H A Dimx6dl-victgo.dts1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
7 /dts-v1/;
9 #include "imx6qdl-vicut1.dtsi"
15 gpio-keys {
16 compatible = "gpio-keys";
17 pinctrl-names = "default";
18 pinctrl-0 = <&pinctrl_gpiokeys>;
21 key-power {
25 wakeup-source;
28 key-enter {
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H A Dimx6dl-prtvt7.dts1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
6 /dts-v1/;
8 #include "imx6qdl-prti6q.dtsi"
9 #include <dt-bindings/display/sdtv-standards.h>
10 #include <dt-bindings/input/input.h>
11 #include <dt-bindings/leds/common.h>
12 #include <dt-bindings/sound/fsl-imx-audmux.h>
23 backlight_lcd: backlight-lcd {
24 compatible = "pwm-backlight";
26 brightness-levels = <0 20 81 248 1000>;
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/linux/Documentation/ABI/testing/
H A Dsysfs-bus-iio-adc-mcp35643 Contact: linux-iio@vger.kernel.org
6 circuit of the Delta-Sigma modulator. The different BOOST
12 Contact: linux-iio@vger.kernel.org
15 the current biasing circuit of the Delta-Sigma modulator.
19 Contact: linux-iio@vger.kernel.org
22 auto-zeroing algorithm (the input multiplexer and the ADC
26 input as VIN+/VIN-, one with VIN+/VIN- inverted. In this case the
30 ultra-low offset without any digital calibration. The resulting
39 Contact: linux-iio@vger.kernel.org
47 higher Oversampling Ratio values (over 256). To overcome this
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H A Dsysfs-bus-iio3 Contact: linux-iio@vger.kernel.org
11 Contact: linux-iio@vger.kernel.org
25 Contact: linux-iio@vger.kernel.org
31 Contact: linux-iio@vger.kernel.org
38 Contact: linux-iio@vger.kernel.org
44 The contents of the label are free-form, but there are some
51 * "proximity-wifi"
52 * "proximity-lte"
53 * "proximity-wifi-lte"
54 * "proximity-wifi-left"
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/linux/sound/soc/codecs/
H A Dwm8974.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * wm8974.c -- WM8974 ALSA Soc Audio driver
5 * Copyright 2006-2009 Wolfson Microelectronics PLC.
55 static const char *wm8974_companding[] = {"Off", "NC", "u-law", "A-law" };
91 static const DECLARE_TLV_DB_SCALE(digital_tlv, -1275
378 unsigned int ratio = 2 * f_in / f_out; wm8974_get_mclkdiv() local
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H A Dnau8325.c1 // SPDX-License-Identifier: GPL-2.0-only
3 // nau8325.c -- Nuvoton NAU8325 audio codec driver
30 #define CLK_PROC_BYPASS (-1)
192 static const DECLARE_TLV_DB_MINMAX_MUTE(dac_vol_tlv, -8000, 600);
195 SOC_ENUM("DAC Oversampling Rate", nau8325_dac_oversampl_enum),
219 snd_soc_dapm_to_component(w->dap in nau8325_dac_event()
346 int i, mclk_src, ratio; nau8325_clksrc_n2() local
389 int i, j, mclk, mclk_max, ratio, ratio_sel, n2_max; nau8325_clksrc_choose() local
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H A Dnau8821.c1 // SPDX-License-Identifier: GPL-2.0-only
3 // nau8821.c -- Nuvoton NAU88L21 audio codec driver
7 // Co-author: Seven Lee <wtli@nuvoton.com>
33 static int quirk_override = -1;
35 MODULE_PARM_DESC(quirk, "Board-specific quirk override");
52 int ratio; member
80 /* ratio for input clk freq */
286 struct soc_bytes_ext *params = (void *)kcontrol->private_value; in nau8821_biq_coeff_get()
288 if (!component->regmap) in nau8821_biq_coeff_get()
289 return -EINVAL; in nau8821_biq_coeff_get()
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H A Des8311.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * es8311.c -- es8311 ALSA SoC audio driver
38 static const DECLARE_TLV_DB_SCALE(es8311_adc_vol_tlv, -9550, 50, 0);
68 0, 1, TLV_DB_SCALE_ITEM(-3010, 600, 0),
69 2, 3, TLV_DB_SCALE_ITEM(-2060, 250, 0),
70 4, 5, TLV_DB_SCALE_ITEM(-161
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H A Dmax98090.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * max98090.c -- MAX98090 ALSA SoC Audio driver
5 * Copyright 2011-2012 Maxim Integrated Products
279 /* Reset the codec by writing to this write-only reset register */ in max98090_reset()
280 ret = regmap_write(max98090->regmap, M98090_REG_SOFTWARE_RESET, in max98090_reset()
283 dev_err(max98090->component->dev, in max98090_reset()
300 -600, 600, 0);
303 0, 3, TLV_DB_SCALE_ITEM(-600, 300, 0),
308 static const DECLARE_TLV_DB_SCALE(max98090_av_tlv, -1200, 100, 0);
311 static const DECLARE_TLV_DB_SCALE(max98090_dv_tlv, -1500, 100, 0);
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/linux/drivers/iio/adc/
H A Dad7380.c1 // SPDX-License-Identifier: GPL-2.0-only
9 * ad7380/1 : https://www.analog.com/media/en/technical-documentation/data-sheets/AD7380-7381.pdf
10 * ad7383/4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7383-7384.pdf
11 …* ad7386/7/8 : https://www.analog.com/media/en/technical-documentation/data-sheets/AD7386-7387-738…
12 * ad7380-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7380-4.pdf
13 * ad7381-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7381-4.pdf
14 …* ad7383/4-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7383-4-ad7384…
15 …* ad7386/7/8-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7386-4-7387…
16 * ad7389-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7389-4.pdf
17 * adaq4370-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/adaq4370-4.pdf
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H A Dad4695.c1 // SPDX-License-Identifier: GPL-2.0-only
22 #include <linux/iio/buffer-dmaengine.h>
38 #include <dt-bindings/iio/adc/adi,ad4695.h>
208 .name = "ad4695-8",
237 .name = "ad4695-16",
254 .tx_buf = st->regmap_bus_data, in ad4695_regmap_bus_reg_write()
257 if (count > ARRAY_SIZE(st->regmap_bus_data)) in ad4695_regmap_bus_reg_write()
258 return -EINVAL; in ad4695_regmap_bus_reg_write()
260 memcpy(st->regmap_bus_data, data, count); in ad4695_regmap_bus_reg_write()
262 return spi_sync_transfer(st->spi, &xfer, 1); in ad4695_regmap_bus_reg_write()
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H A Dstm32-dfsdm-adc.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
10 #include <linux/dma-mapping.h>
12 #include <linux/iio/adc/stm32-dfsdm-adc.h>
15 #include <linux/iio/hw-consumer.h>
17 #include <linux/iio/timer/stm32-lptim-trigger.h>
18 #include <linux/iio/timer/stm32-timer-trigger.h>
30 #include "stm32-dfsdm.h"
38 /* Oversampling attribute default */
41 /* Oversampling max values */
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H A Dad7606.c1 // SPDX-License-Identifier: GPL-2.0
103 -128, 1, 127,
107 -512, 4, 508,
135 .name = "ad7605-4",
144 .name = "ad7606-8",
155 .name = "ad7606-6",
167 .name = "ad7606-4",
278 if (st->gpio_reset) { in ad7606_reset()
279 gpiod_set_value(st->gpio_reset, 1); in ad7606_reset()
281 gpiod_set_value(st->gpio_reset, 0); in ad7606_reset()
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/linux/include/linux/iio/
H A Dbackend.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
31 * IIO_BACKEND_EX_INFO - Helper for an IIO extended channel attribute
45 * struct iio_backend_data_fmt - Backend data format
88 * struct iio_backend_ops - operations structure for an iio_backend
108 * @oversampling_ratio_set: Set Oversampling ratio.
158 unsigned int chan, unsigned int ratio);
179 * struct iio_backend_info - info structure for an iio_backend
232 unsigned int ratio);
/linux/drivers/iio/
H A Dindustrialio-backend.c1 // SPDX-License-Identifier: GPL-2.0-only
11 * -------------------------------------------------------
12 * ------------------ | ------------ ------------ ------- FPGA|
13 * | ADC |------------------------| | ADC CORE |---------| DMA CORE |------| RAM | |
14 * | (Frontend/IIO) | Serial Data (eg: LVDS) | |(backend) |---------| |------| | |
15 * | |------------------------| ------------ ------------ ------- |
16 * ------------------ -------------------------------------------------------
19 * - Backends should register themselves with devm_iio_backend_register()
20 * - Frontend devices should get backends with devm_iio_backend_get()
27 * the industrialio-backend.c is only left with the really generic stuff. Then,
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/linux/drivers/iio/humidity/
H A Dhts221_core.c1 // SPDX-License-Identifier: GPL-2.0-only
132 err = regmap_read(hw->regmap, HTS221_REG_WHOAMI_ADDR, &data); in hts221_check_whoami()
134 dev_err(hw->dev, "failed to read whoami register\n"); in hts221_check_whoami()
139 dev_err(hw->dev, "wrong whoami {%02x vs %02x}\n", in hts221_check_whoami()
141 return -ENODEV; in hts221_check_whoami()
156 return -EINVAL; in hts221_update_odr()
158 err = regmap_update_bits(hw->regmap, HTS221_REG_CNTRL1_ADDR, in hts221_update_odr()
165 hw->odr = odr; in hts221_update_odr()
178 if (avg->avg_avl[i] == val) in hts221_update_avg()
182 return -EINVAL; in hts221_update_avg()
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/linux/sound/soc/meson/
H A Daiu-encoder-i2s.c1 // SPDX-License-Identifier: GPL-2.0
10 #include <sound/soc-dai.h>
58 return -EINVAL; in aiu_encoder_i2s_setup_desc()
68 return -EINVAL; in aiu_encoder_i2s_setup_desc()
94 dev_err(component->dev, "Unsupported i2s divider: %u\n", bs); in aiu_encoder_i2s_set_legacy_div()
95 return -EINVAL; in aiu_encoder_i2s_set_legacy_div()
118 * However, in 16 bits - 8ch mode, this factor needs to be in aiu_encoder_i2s_set_more_div()
124 dev_err(component->dev, in aiu_encoder_i2s_set_more_div()
126 return -EINVAL; in aiu_encoder_i2s_set_more_div()
139 bs - 1)); in aiu_encoder_i2s_set_more_div()
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/linux/drivers/tty/serial/
H A Datmel_serial.h1 /* SPDX-License-Identifier: GPL-2.0+ */
27 #define ATMEL_US_STTTO BIT(11) /* Start Time-out */
31 #define ATMEL_US_RETTO BIT(15) /* Rearm Time-out */
81 #define ATMEL_US_MODE9 BIT(17) /* 9-bit Character Length */
83 #define ATMEL_US_OVER BIT(19) /* Oversampling Mode */
99 #define ATMEL_US_TIMEOUT BIT(8) /* Receiver Time-out */
126 #define ATMEL_US_RTOR 0x24 /* Receiver Time-out Register for USART */
127 #define ATMEL_UA_RTOR 0x28 /* Receiver Time-out Register for UART */
128 #define ATMEL_US_TO GENMASK(15, 0) /* Time-out Value */
133 #define ATMEL_US_FIDI 0x40 /* FI DI Ratio Register */
/linux/drivers/iio/accel/
H A Dbma400_core.c1 // SPDX-License-Identifier: GPL-2.0-only
8 * - Support for power management
9 * - Support events and interrupts
10 * - Create channel for step count
11 * - Create channel for sensor time
38 * The G-range selection may be one of 2g, 4g, 8, or 16g. The scale may
240 return &data->orientation; in bma400_accel_get_mount_matrix()
302 return -EINVAL; in usec_to_tapreg_raw()
313 ret = regmap_read(data->regmap, BMA400_TAP_CONFIG1_REG, &reg_val); in in_accel_gesture_tap_maxtomin_time_show()
338 return -EINVAL; in in_accel_gesture_tap_maxtomin_time_store()
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/linux/drivers/iio/pressure/
H A Drohm-bm1390.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * https://fscdn.rohm.com/en/products/databook/datasheet/ic/sensor/pressure/bm1390glv-z-e.pdf
40 * Data-sheet states that when the IIR is used, the AVE_NUM must be set to
174 * Thus we don't allow setting oversampling ratio.
215 ret = regmap_bulk_read(data->regmap, BM1390_REG_TEMP_HI, &temp_raw, in bm1390_read_temp()
227 /* Pressure data is in 3 8-bit registers */ in bm1390_pressure_read()
231 ret = regmap_bulk_read(data->regmap, BM1390_REG_PRESSURE_BASE, in bm1390_pressure_read()
250 return regmap_update_bits(data->regmap, BM1390_REG_MODE_CTRL, in bm1390_meas_set()
256 * completed. The data-sheet says maximum measurement cycle (regardless
267 guard(mutex)(&data->mutex); in bm1390_read_data()
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/linux/drivers/media/dvb-frontends/
H A Dstv0910.c1 // SPDX-License-Identifier: GPL-2.0
3 * Driver for the ST STV0910 DVB-S/S2 demodulator.
5 * Copyright (C) 2014-2015 Ralph Metzler <rjkm@metzlerbros.de>
129 struct i2c_adapter *adap = state->base->i2c; in write_reg()
131 struct i2c_msg msg = {.addr = state->base->adr, .flags = 0, in write_reg()
135 dev_warn(&adap->dev, "i2c write error ([%02x] %04x: %02x)\n", in write_reg()
136 state->base->adr, reg, val); in write_reg()
137 return -EIO; in write_reg()
152 dev_warn(&adapter->dev, "i2c read error ([%02x] %04x)\n", in i2c_read_regs16()
154 return -EIO; in i2c_read_regs16()
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