Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *  m62332.c - Support for Mitsubishi m62332 DAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *  Copyright (c) 2014 Dmitry Eremin-Solenikov
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *  Based on max517 driver:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *  Copyright (C) 2010, 2011 Roland Stigge <stigge@antcom.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/iio/iio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/iio/driver.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/regulator/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #define M62332_CHANNELS 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) struct m62332_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	struct i2c_client	*client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	struct regulator	*vcc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	struct mutex		mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	u8			raw[M62332_CHANNELS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #ifdef CONFIG_PM_SLEEP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	u8			save[M62332_CHANNELS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) static int m62332_set_value(struct iio_dev *indio_dev, u8 val, int channel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	struct m62332_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	u8 outbuf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	int res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	if (val == data->raw[channel])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	outbuf[0] = channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	outbuf[1] = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	if (val) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 		res = regulator_enable(data->vcc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		if (res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 			goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	res = i2c_master_send(client, outbuf, ARRAY_SIZE(outbuf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	if (res >= 0 && res != ARRAY_SIZE(outbuf))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 		res = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	if (res < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	data->raw[channel] = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	if (!val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		regulator_disable(data->vcc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) static int m62332_read_raw(struct iio_dev *indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 			   struct iio_chan_spec const *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 			   int *val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 			   int *val2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 			   long mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	struct m62332_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	switch (mask) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	case IIO_CHAN_INFO_SCALE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		/* Corresponds to Vref / 2^(bits) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 		ret = regulator_get_voltage(data->vcc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 		if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		*val = ret / 1000; /* mV */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 		*val2 = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		return IIO_VAL_FRACTIONAL_LOG2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	case IIO_CHAN_INFO_RAW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 		*val = data->raw[chan->channel];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	case IIO_CHAN_INFO_OFFSET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		*val = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) static int m62332_write_raw(struct iio_dev *indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 			    struct iio_chan_spec const *chan, int val, int val2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 			    long mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	switch (mask) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	case IIO_CHAN_INFO_RAW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 		if (val < 0 || val > 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 		return m62332_set_value(indio_dev, val, chan->channel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) #ifdef CONFIG_PM_SLEEP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) static int m62332_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	struct m62332_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	data->save[0] = data->raw[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	data->save[1] = data->raw[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	ret = m62332_set_value(indio_dev, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	return m62332_set_value(indio_dev, 0, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) static int m62332_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	struct m62332_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	ret = m62332_set_value(indio_dev, data->save[0], 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	return m62332_set_value(indio_dev, data->save[1], 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static SIMPLE_DEV_PM_OPS(m62332_pm_ops, m62332_suspend, m62332_resume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) #define M62332_PM_OPS (&m62332_pm_ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) #define M62332_PM_OPS NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) static const struct iio_info m62332_info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	.read_raw = m62332_read_raw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	.write_raw = m62332_write_raw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) #define M62332_CHANNEL(chan) {					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	.type = IIO_VOLTAGE,					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	.indexed = 1,						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	.output = 1,						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	.channel = (chan),					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	.datasheet_name = "CH" #chan,				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 				    BIT(IIO_CHAN_INFO_OFFSET),	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) static const struct iio_chan_spec m62332_channels[M62332_CHANNELS] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	M62332_CHANNEL(0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	M62332_CHANNEL(1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) static int m62332_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 			const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	struct m62332_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	struct iio_dev *indio_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	if (!indio_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	i2c_set_clientdata(client, indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	data->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	mutex_init(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	data->vcc = devm_regulator_get(&client->dev, "VCC");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	if (IS_ERR(data->vcc))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		return PTR_ERR(data->vcc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	indio_dev->num_channels = ARRAY_SIZE(m62332_channels);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	indio_dev->channels = m62332_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	indio_dev->modes = INDIO_DIRECT_MODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	indio_dev->info = &m62332_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	ret = iio_map_array_register(indio_dev, client->dev.platform_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	ret = iio_device_register(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 		goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	iio_map_array_unregister(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) static int m62332_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	iio_device_unregister(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	iio_map_array_unregister(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	m62332_set_value(indio_dev, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	m62332_set_value(indio_dev, 0, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) static const struct i2c_device_id m62332_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	{ "m62332", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) MODULE_DEVICE_TABLE(i2c, m62332_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) static struct i2c_driver m62332_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		.name	= "m62332",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		.pm	= M62332_PM_OPS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	.probe		= m62332_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	.remove		= m62332_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	.id_table	= m62332_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) module_i2c_driver(m62332_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) MODULE_AUTHOR("Dmitry Eremin-Solenikov");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) MODULE_DESCRIPTION("M62332 8-bit DAC");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) MODULE_LICENSE("GPL v2");