linux/drivers/iio/adc/max1118.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * MAX1117/MAX1118/MAX1119 8-bit, dual-channel ADCs driver
 *
 * Copyright (c) 2017 Akinobu Mita <[email protected]>
 *
 * Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX1117-MAX1119.pdf
 *
 * SPI interface connections
 *
 * SPI                MAXIM
 * Master  Direction  MAX1117/8/9
 * ------  ---------  -----------
 * nCS        -->     CNVST
 * SCK        -->     SCLK
 * MISO       <--     DOUT
 * ------  ---------  -----------
 */

#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/spi/spi.h>
#include <linux/iio/iio.h>
#include <linux/iio/buffer.h>
#include <linux/iio/triggered_buffer.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/regulator/consumer.h>

enum max1118_id { … };

struct max1118 { … };

#define MAX1118_CHANNEL(ch) …

static const struct iio_chan_spec max1118_channels[] = …;

static int max1118_read(struct iio_dev *indio_dev, int channel)
{ … }

static int max1118_get_vref_mV(struct iio_dev *indio_dev)
{ … }

static int max1118_read_raw(struct iio_dev *indio_dev,
			struct iio_chan_spec const *chan,
			int *val, int *val2, long mask)
{ … }

static const struct iio_info max1118_info = …;

static irqreturn_t max1118_trigger_handler(int irq, void *p)
{ … }

static void max1118_reg_disable(void *reg)
{ … }

static int max1118_probe(struct spi_device *spi)
{ … }

static const struct spi_device_id max1118_id[] = …;
MODULE_DEVICE_TABLE(spi, max1118_id);

static const struct of_device_id max1118_dt_ids[] = …;
MODULE_DEVICE_TABLE(of, max1118_dt_ids);

static struct spi_driver max1118_spi_driver = …;
module_spi_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;