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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/AD7616.pdf
22 - adi,ad7605-4
23 - adi,ad7606-4
[all …]
H A Dadc.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jonathan Cameron <jic23@kernel.org>
17 pattern: "^channel(@[0-9a-f]+)?$"
31 diff-channels:
32 $ref: /schemas/types.yaml#/definitions/uint32-array
41 single-channel:
44 When devices combine single-ended and differential channels, allow the
46 differential channels). If this and diff-channels are not present reg
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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>;
[all …]
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>;
[all …]
/linux/arch/arm64/boot/dts/freescale/
H A Dimx8mp-skov-revb-lt6.dts1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 /dts-v1/;
5 #include "imx8mp-skov-reva.dtsi"
8 model = "SKOV IMX8MP CPU revB - LT6";
9 compatible = "skov,imx8mp-skov-revb-lt6", "fsl,imx8mp";
12 compatible = "resistive-adc-touch";
13 io-channels = <&adc_ts 1>, <&adc_ts 3>, <&adc_ts 4>, <&adc_ts 5>;
14 io-channel-names = "y", "z1", "z2", "x";
15 touchscreen-min-pressure = <65000>;
16 touchscreen-inverted-y;
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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
[all …]
/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()
[all …]
H A Dwm8770.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * wm8770.c -- WM8770 ALSA SoC Audio driver
105 regcache_mark_dirty(wm8770->regmap); \
114 static const DECLARE_TLV_DB_SCALE(adc_tlv, -1200, 100, 0);
115 static const DECLARE_TLV_DB_SCALE(dac_dig_tlv, -12750, 50, 1);
116 static const DECLARE_TLV_DB_SCALE(dac_alg_tlv, -12700, 100, 1);
187 SOC_SINGLE("ADC 128x Oversampling Switch", WM8770_MSTRCTRL, 3, 1, 0),
308 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); in vout12supply_event()
325 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); in vout34supply_event()
349 component = dai->component; in wm8770_set_fmt()
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H A Dwm8985.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * wm8985.c -- WM8985 / WM8758 ALSA SoC Audio driver
49 { 1, 0x0000 }, /* R1 - Power management 1 */
50 { 2, 0x0000 }, /* R2 - Power management 2 */
51 { 3, 0x0000 }, /* R3 - Power management 3 */
52 { 4, 0x0050 }, /* R4 - Audio Interface */
53 { 5, 0x0000 }, /* R5 - Companding control */
54 { 6, 0x0140 }, /* R6 - Clock Gen control */
55 { 7, 0x0000 }, /* R7 - Additional control */
56 { 8, 0x0000 }, /* R8 - GPIO Control */
[all …]
H A Dwm8983.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * wm8983.c -- WM8983 ALSA SoC Audio driver
29 { 0x01, 0x0000 }, /* R1 - Power management 1 */
30 { 0x02, 0x0000 }, /* R2 - Power management 2 */
31 { 0x03, 0x0000 }, /* R3 - Power management 3 */
32 { 0x04, 0x0050 }, /* R4 - Audio Interface */
33 { 0x05, 0x0000 }, /* R5 - Companding control */
34 { 0x06, 0x0140 }, /* R6 - Clock Gen control */
35 { 0x07, 0x0000 }, /* R7 - Additional control */
36 { 0x08, 0x0000 }, /* R8 - GPIO Control */
[all …]
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>
32 static int quirk_override = -1;
34 MODULE_PARM_DESC(quirk, "Board-specific quirk override");
51 int ratio; member
79 /* ratio for input clk freq */
285 struct soc_bytes_ext *params = (void *)kcontrol->private_value; in nau8821_biq_coeff_get()
287 if (!component->regmap) in nau8821_biq_coeff_get()
288 return -EINVAL; in nau8821_biq_coeff_get()
[all …]
H A Dnau8824.c1 // SPDX-License-Identifier: GPL-2.0-only
35 static int quirk_override = -1;
37 MODULE_PARM_DESC(quirk, "Board-specific quirk override");
68 /* ratio for input clk freq */
211 ret = down_timeout(&nau8824->jd_sem, timeout); in nau8824_sema_acquire()
213 dev_warn(nau8824->dev, "Acquire semaphore timeout\n"); in nau8824_sema_acquire()
215 ret = down_interruptible(&nau8824->jd_sem); in nau8824_sema_acquire()
217 dev_warn(nau8824->dev, "Acquire semaphore fail\n"); in nau8824_sema_acquire()
225 up(&nau8824->jd_sem); in nau8824_sema_release()
304 "Off", "NC", "u-law", "A-law" };
[all …]
/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…
76 #define T_CONVERT_0_NS 10 /* 1st conversion start time (oversampling) */
77 #define T_CONVERT_X_NS 500 /* xth conversion start time (oversampling) */
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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>
11 #include <linux/iio/adc/stm32-dfsdm-adc.h>
14 #include <linux/iio/hw-consumer.h>
16 #include <linux/iio/timer/stm32-lptim-trigger.h>
17 #include <linux/iio/timer/stm32-timer-trigger.h>
29 #include "stm32-dfsdm.h"
37 /* Oversampling attribute default */
40 /* Oversampling max values */
[all …]
H A Dat91-sama5d2_adc.c1 // SPDX-License-Identifier: GPL-2.0-only
14 #include <linux/dma-mapping.h>
31 #include <linux/nvmem-consumer.h>
36 #include <dt-bindings/iio/adc/at91-sama5d2_adc.h>
110 /* Interrupt Enable Register - TS X measurement ready */
112 /* Interrupt Enable Register - TS Y measurement ready */
114 /* Interrupt Enable Register - TS pressure measurement ready */
116 /* Interrupt Enable Register - Data ready */
118 /* Interrupt Enable Register - general overrun error */
120 /* Interrupt Enable Register - Pen detect */
[all …]
H A Dad7606.c1 // SPDX-License-Identifier: GPL-2.0
54 if (st->gpio_reset) { in ad7606_reset()
55 gpiod_set_value(st->gpio_reset, 1); in ad7606_reset()
57 gpiod_set_value(st->gpio_reset, 0); in ad7606_reset()
61 return -ENODEV; in ad7606_reset()
73 guard(mutex)(&st->lock); in ad7606_reg_access()
76 ret = st->bops->reg_read(st, reg); in ad7606_reg_access()
82 return st->bops->reg_write(st, reg, writeval); in ad7606_reg_access()
88 unsigned int num = st->chip_info->num_channels - 1; in ad7606_read_samples()
89 u16 *data = st->data; in ad7606_read_samples()
[all …]
H A Dti-tsc2046.c1 // SPDX-License-Identifier: GPL-2.0
29 * - rate limiting:
31 * - hrtimer:
61 * conversion has 12-bit resolution, whereas with this bit high, the next
62 * conversion has 8-bit resolution. This driver is optimized for 12-bit mode.
68 * SER/DFR - The SER/DFR bit controls the reference mode, either single-ended
75 * auto-wake/suspend mode. In most case this bits should stay zero.
231 bit_count = DIV_ROUND_UP(time * NSEC_PER_USEC, priv->time_per_bit_ns); in tsc2046_adc_time_to_count()
234 …dev_dbg(&priv->spi->dev, "Effective speed %u, time per bit: %u, count bits: %u, count samples: %u\… in tsc2046_adc_time_to_count()
235 priv->effective_speed_hz, priv->time_per_bit_ns, in tsc2046_adc_time_to_count()
[all …]
/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()
[all …]
/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->regs[reg]) { in wm8776_write_bits()
113 unsigned short offset; /* zero-value offset */
126 .update = 0x180, /* update and zero-cross enable */
134 .update = 0x100, /* zero-cross enable */
150 /* headphone output: mute, -73..+6db (1db step) */
[all …]
/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()
[all …]

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