^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * atlas-ezo-sensor.c - Support for Atlas Scientific EZO sensors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2020 Konsulko Group
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Author: Matt Ranostay <matt.ranostay@konsulko.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/of_device.h>
^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)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define ATLAS_EZO_DRV_NAME "atlas-ezo-sensor"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define ATLAS_INT_TIME_IN_MS 950
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define ATLAS_INT_HUM_TIME_IN_MS 350
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) ATLAS_CO2_EZO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) ATLAS_O2_EZO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) ATLAS_HUM_EZO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct atlas_ezo_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) const struct iio_chan_spec *channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) int num_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) int delay;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct atlas_ezo_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct atlas_ezo_device *chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /* lock to avoid multiple concurrent read calls */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct mutex lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) u8 buffer[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define ATLAS_CONCENTRATION_CHANNEL(_modifier) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) .type = IIO_CONCENTRATION, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) .modified = 1,\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) .channel2 = _modifier, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) .info_mask_separate = \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) .scan_index = 0, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) .scan_type = { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) .sign = 'u', \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) .realbits = 32, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) .storagebits = 32, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) .endianness = IIO_CPU, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static const struct iio_chan_spec atlas_co2_ezo_channels[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) ATLAS_CONCENTRATION_CHANNEL(IIO_MOD_CO2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static const struct iio_chan_spec atlas_o2_ezo_channels[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) ATLAS_CONCENTRATION_CHANNEL(IIO_MOD_O2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static const struct iio_chan_spec atlas_hum_ezo_channels[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) .type = IIO_HUMIDITYRELATIVE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .info_mask_separate =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) .scan_index = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .scan_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .sign = 'u',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .realbits = 32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .storagebits = 32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) .endianness = IIO_CPU,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) static struct atlas_ezo_device atlas_ezo_devices[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) [ATLAS_CO2_EZO] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) .channels = atlas_co2_ezo_channels,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) .num_channels = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) .delay = ATLAS_INT_TIME_IN_MS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) [ATLAS_O2_EZO] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .channels = atlas_o2_ezo_channels,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) .num_channels = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) .delay = ATLAS_INT_TIME_IN_MS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) [ATLAS_HUM_EZO] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .channels = atlas_hum_ezo_channels,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) .num_channels = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) .delay = ATLAS_INT_HUM_TIME_IN_MS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static void atlas_ezo_sanitize(char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) char *ptr = strchr(buf, '.');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) if (!ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) memmove(ptr, ptr + 1, strlen(ptr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) static int atlas_ezo_read_raw(struct iio_dev *indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) struct iio_chan_spec const *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) int *val, int *val2, long mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct atlas_ezo_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) if (chan->type != IIO_CONCENTRATION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) switch (mask) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) case IIO_CHAN_INFO_RAW: {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) long tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) mutex_lock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) tmp = i2c_smbus_write_byte(client, 'R');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) if (tmp < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) mutex_unlock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) return tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) msleep(data->chip->delay);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) tmp = i2c_master_recv(client, data->buffer, sizeof(data->buffer));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) if (tmp < 0 || data->buffer[0] != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) mutex_unlock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) /* removing floating point for fixed number representation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) atlas_ezo_sanitize(data->buffer + 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) ret = kstrtol(data->buffer + 1, 10, &tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) *val = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) mutex_unlock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return ret ? ret : IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) case IIO_CHAN_INFO_SCALE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) case IIO_HUMIDITYRELATIVE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) *val = 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) case IIO_CONCENTRATION:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) /* IIO_CONCENTRATION modifiers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) switch (chan->channel2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) case IIO_MOD_CO2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) *val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) *val2 = 100; /* 0.0001 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) return IIO_VAL_INT_PLUS_MICRO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) case IIO_MOD_O2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) *val = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) static const struct iio_info atlas_info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) .read_raw = atlas_ezo_read_raw,
^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 const struct i2c_device_id atlas_ezo_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) { "atlas-co2-ezo", ATLAS_CO2_EZO },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) { "atlas-o2-ezo", ATLAS_O2_EZO },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) { "atlas-hum-ezo", ATLAS_HUM_EZO },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) MODULE_DEVICE_TABLE(i2c, atlas_ezo_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) static const struct of_device_id atlas_ezo_dt_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) { .compatible = "atlas,co2-ezo", .data = (void *)ATLAS_CO2_EZO, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) { .compatible = "atlas,o2-ezo", .data = (void *)ATLAS_O2_EZO, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) { .compatible = "atlas,hum-ezo", .data = (void *)ATLAS_HUM_EZO, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) MODULE_DEVICE_TABLE(of, atlas_ezo_dt_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) static int atlas_ezo_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) struct atlas_ezo_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) struct atlas_ezo_device *chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) const struct of_device_id *of_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) struct iio_dev *indio_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) if (!indio_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) of_id = of_match_device(atlas_ezo_dt_ids, &client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) if (!of_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) chip = &atlas_ezo_devices[id->driver_data];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) chip = &atlas_ezo_devices[(unsigned long)of_id->data];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) indio_dev->info = &atlas_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) indio_dev->name = ATLAS_EZO_DRV_NAME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) indio_dev->channels = chip->channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) indio_dev->num_channels = chip->num_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) indio_dev->modes = INDIO_DIRECT_MODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) data->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) data->chip = chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) mutex_init(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) return devm_iio_device_register(&client->dev, indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) static struct i2c_driver atlas_ezo_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) .name = ATLAS_EZO_DRV_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) .of_match_table = atlas_ezo_dt_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) .probe = atlas_ezo_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) .id_table = atlas_ezo_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) module_i2c_driver(atlas_ezo_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) MODULE_AUTHOR("Matt Ranostay <matt.ranostay@konsulko.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) MODULE_DESCRIPTION("Atlas Scientific EZO sensors");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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