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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,ad7606.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Michael Hennerich <michael.hennerich@analog.com>
14 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7605-4.pdf
15 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606_7606-6_7606-4.pdf
16 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7606B.pdf
17 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606c-16.pdf
18 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606c-18.pdf
19 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7607.pdf
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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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/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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/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, -12750, 50, 1);
92 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
93 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0);
94 static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0);
103 SOC_ENUM("Playback De-emphasis", wm8974_enum[2]),
168 /* DAC / ADC oversampling */
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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->dapm); in nau8325_dac_event()
224 regmap_update_bits(nau8325->regmap, NAU8325_R12_MUTE_CTRL, in nau8325_dac_event()
230 regmap_update_bits(nau8325->regmap, NAU8325_R12_MUTE_CTRL, in nau8325_dac_event()
235 return -EINVAL; in nau8325_dac_event()
245 snd_soc_dapm_to_component(w->dapm); in nau8325_powerup_event()
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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(-1610, 160, 0),
71 6, 7, TLV_DB_SCALE_ITEM(-1320, 120, 0),
72 8, 9, TLV_DB_SCALE_ITEM(-1100, 90, 0),
73 10, 11, TLV_DB_SCALE_ITEM(-930, 80, 0),
74 12, 15, TLV_DB_SCALE_ITEM(-780, 60, 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 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/sound/pci/ice1712/
H A Dmaya44.c1 // SPDX-License-Identifier: GPL-2.0-or-later
50 /* clock ratio identifiers for snd_wm8776_set_rate() */
83 snd_vt1724_write_i2c(ice, wm->addr, in wm8776_write()
86 wm->regs[reg] = val; in wm8776_write()
96 val |= wm->regs[reg] & ~mask; in wm8776_write_bits()
97 if (val != wm->reg in wm8776_write_bits()
590 unsigned int ratio, adc_ratio, val; set_rate() local
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H A Daureon.c1 // SPDX-License-Identifier: GPL-2.0-or-later
11 * - we reuse the struct snd_akm4xxx record for storing the wm8770 codec data.
16 * - DAC digital volumes are not implemented in the mixer.
24 * added 64x/128x oversampling switch (should be 64x only for 96khz)
58 #define WM_DAC_ATTEN 0x00 /* DAC1-8 analog attenuation */
60 #define WM_DAC_DIG_ATTEN 0x09 /* DAC1-
1189 unsigned char ratio; aureon_cs8415_rate_get() local
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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
205 return &data->orientation; in bma400_accel_get_mount_matrix()
267 return -EINVAL; in usec_to_tapreg_raw()
278 ret = regmap_read(data->regmap, BMA400_TAP_CONFIG1, &reg_val); in in_accel_gesture_tap_maxtomin_time_show()
303 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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H A Dstv090x.c1 // SPDX-License-Identifier: GPL-2.0-or-later
52 ((temp_dev->internal->i2c_adap != i2c_adap) || in find_dev()
53 (temp_dev->internal->i2c_addr != i2c_addr))) { in find_dev()
55 temp_dev = temp_dev->next_dev; in find_dev()
65 struct stv090x_dev *del_dev = find_dev(internal->i2c_adap, in remove_dev()
66 internal->i2c_addr); in remove_dev()
70 stv090x_first_dev = del_dev->next_dev; in remove_dev()
72 while (prev_dev->next_dev != del_dev) in remove_dev()
73 prev_dev = prev_dev->next_dev; in remove_dev()
75 prev_dev->next_dev = del_dev->next_dev; in remove_dev()
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