diff options
Diffstat (limited to 'drivers/iio')
-rw-r--r-- | drivers/iio/accel/bma400_core.c | 24 | ||||
-rw-r--r-- | drivers/iio/adc/at91-sama5d2_adc.c | 6 | ||||
-rw-r--r-- | drivers/iio/adc/at91_adc.c | 4 | ||||
-rw-r--r-- | drivers/iio/adc/mp2629_adc.c | 5 | ||||
-rw-r--r-- | drivers/iio/imu/bno055/bno055.c | 2 | ||||
-rw-r--r-- | drivers/iio/pressure/ms5611.h | 12 | ||||
-rw-r--r-- | drivers/iio/pressure/ms5611_core.c | 51 | ||||
-rw-r--r-- | drivers/iio/pressure/ms5611_spi.c | 2 | ||||
-rw-r--r-- | drivers/iio/trigger/iio-trig-sysfs.c | 6 |
9 files changed, 58 insertions, 54 deletions
diff --git a/drivers/iio/accel/bma400_core.c b/drivers/iio/accel/bma400_core.c index e8de88e6cfb9..81bfec9e20cc 100644 --- a/drivers/iio/accel/bma400_core.c +++ b/drivers/iio/accel/bma400_core.c @@ -869,18 +869,6 @@ static int bma400_init(struct bma400_data *data) unsigned int val; int ret; - /* Try to read chip_id register. It must return 0x90. */ - ret = regmap_read(data->regmap, BMA400_CHIP_ID_REG, &val); - if (ret) { - dev_err(data->dev, "Failed to read chip id register\n"); - return ret; - } - - if (val != BMA400_ID_REG_VAL) { - dev_err(data->dev, "Chip ID mismatch\n"); - return -ENODEV; - } - data->regulators[BMA400_VDD_REGULATOR].supply = "vdd"; data->regulators[BMA400_VDDIO_REGULATOR].supply = "vddio"; ret = devm_regulator_bulk_get(data->dev, @@ -902,6 +890,18 @@ static int bma400_init(struct bma400_data *data) if (ret) return ret; + /* Try to read chip_id register. It must return 0x90. */ + ret = regmap_read(data->regmap, BMA400_CHIP_ID_REG, &val); + if (ret) { + dev_err(data->dev, "Failed to read chip id register\n"); + return ret; + } + + if (val != BMA400_ID_REG_VAL) { + dev_err(data->dev, "Chip ID mismatch\n"); + return -ENODEV; + } + ret = bma400_get_power_mode(data); if (ret) { dev_err(data->dev, "Failed to get the initial power-mode\n"); diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index a00b8316a12f..ed4f8501bda8 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -2294,11 +2294,9 @@ static int at91_adc_temp_sensor_init(struct at91_adc_state *st, clb->p6 = buf[AT91_ADC_TS_CLB_IDX_P6]; /* - * We prepare here the conversion to milli and also add constant - * factor (5 degrees Celsius) to p1 here to avoid doing it on - * hotpath. + * We prepare here the conversion to milli to avoid doing it on hotpath. */ - clb->p1 = clb->p1 * 1000 + 5000; + clb->p1 = clb->p1 * 1000; free_buf: kfree(buf); diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index 532daaa6f943..366e252ebeb0 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -634,8 +634,10 @@ static struct iio_trigger *at91_adc_allocate_trigger(struct iio_dev *idev, trig->ops = &at91_adc_trigger_ops; ret = iio_trigger_register(trig); - if (ret) + if (ret) { + iio_trigger_free(trig); return NULL; + } return trig; } diff --git a/drivers/iio/adc/mp2629_adc.c b/drivers/iio/adc/mp2629_adc.c index 30a31f185d08..88e947f300cf 100644 --- a/drivers/iio/adc/mp2629_adc.c +++ b/drivers/iio/adc/mp2629_adc.c @@ -57,7 +57,8 @@ static struct iio_map mp2629_adc_maps[] = { MP2629_MAP(SYSTEM_VOLT, "system-volt"), MP2629_MAP(INPUT_VOLT, "input-volt"), MP2629_MAP(BATT_CURRENT, "batt-current"), - MP2629_MAP(INPUT_CURRENT, "input-current") + MP2629_MAP(INPUT_CURRENT, "input-current"), + { } }; static int mp2629_read_raw(struct iio_dev *indio_dev, @@ -74,7 +75,7 @@ static int mp2629_read_raw(struct iio_dev *indio_dev, if (ret) return ret; - if (chan->address == MP2629_INPUT_VOLT) + if (chan->channel == MP2629_INPUT_VOLT) rval &= GENMASK(6, 0); *val = rval; return IIO_VAL_INT; diff --git a/drivers/iio/imu/bno055/bno055.c b/drivers/iio/imu/bno055/bno055.c index 307557a609e3..52744dd98e65 100644 --- a/drivers/iio/imu/bno055/bno055.c +++ b/drivers/iio/imu/bno055/bno055.c @@ -632,7 +632,7 @@ static int bno055_set_regmask(struct bno055_priv *priv, int val, int val2, return -EINVAL; } delta = abs(tbl_val - req_val); - if (delta < best_delta || first) { + if (first || delta < best_delta) { best_delta = delta; hwval = i; first = false; diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h index cbc9349c342a..550b75b7186f 100644 --- a/drivers/iio/pressure/ms5611.h +++ b/drivers/iio/pressure/ms5611.h @@ -25,13 +25,6 @@ enum { MS5607, }; -struct ms5611_chip_info { - u16 prom[MS5611_PROM_WORDS_NB]; - - int (*temp_and_pressure_compensate)(struct ms5611_chip_info *chip_info, - s32 *temp, s32 *pressure); -}; - /* * OverSampling Rate descriptor. * Warning: cmd MUST be kept aligned on a word boundary (see @@ -50,12 +43,15 @@ struct ms5611_state { const struct ms5611_osr *pressure_osr; const struct ms5611_osr *temp_osr; + u16 prom[MS5611_PROM_WORDS_NB]; + int (*reset)(struct ms5611_state *st); int (*read_prom_word)(struct ms5611_state *st, int index, u16 *word); int (*read_adc_temp_and_pressure)(struct ms5611_state *st, s32 *temp, s32 *pressure); - struct ms5611_chip_info *chip_info; + int (*compensate_temp_and_pressure)(struct ms5611_state *st, s32 *temp, + s32 *pressure); struct regulator *vdd; }; diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c index 717521de66c4..c564a1d6cafe 100644 --- a/drivers/iio/pressure/ms5611_core.c +++ b/drivers/iio/pressure/ms5611_core.c @@ -85,7 +85,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev) struct ms5611_state *st = iio_priv(indio_dev); for (i = 0; i < MS5611_PROM_WORDS_NB; i++) { - ret = st->read_prom_word(st, i, &st->chip_info->prom[i]); + ret = st->read_prom_word(st, i, &st->prom[i]); if (ret < 0) { dev_err(&indio_dev->dev, "failed to read prom at %d\n", i); @@ -93,7 +93,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev) } } - if (!ms5611_prom_is_valid(st->chip_info->prom, MS5611_PROM_WORDS_NB)) { + if (!ms5611_prom_is_valid(st->prom, MS5611_PROM_WORDS_NB)) { dev_err(&indio_dev->dev, "PROM integrity check failed\n"); return -ENODEV; } @@ -114,21 +114,20 @@ static int ms5611_read_temp_and_pressure(struct iio_dev *indio_dev, return ret; } - return st->chip_info->temp_and_pressure_compensate(st->chip_info, - temp, pressure); + return st->compensate_temp_and_pressure(st, temp, pressure); } -static int ms5611_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info, +static int ms5611_temp_and_pressure_compensate(struct ms5611_state *st, s32 *temp, s32 *pressure) { s32 t = *temp, p = *pressure; s64 off, sens, dt; - dt = t - (chip_info->prom[5] << 8); - off = ((s64)chip_info->prom[2] << 16) + ((chip_info->prom[4] * dt) >> 7); - sens = ((s64)chip_info->prom[1] << 15) + ((chip_info->prom[3] * dt) >> 8); + dt = t - (st->prom[5] << 8); + off = ((s64)st->prom[2] << 16) + ((st->prom[4] * dt) >> 7); + sens = ((s64)st->prom[1] << 15) + ((st->prom[3] * dt) >> 8); - t = 2000 + ((chip_info->prom[6] * dt) >> 23); + t = 2000 + ((st->prom[6] * dt) >> 23); if (t < 2000) { s64 off2, sens2, t2; @@ -154,17 +153,17 @@ static int ms5611_temp_and_pressure_compensate(struct ms5611_chip_info *chip_inf return 0; } -static int ms5607_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info, +static int ms5607_temp_and_pressure_compensate(struct ms5611_state *st, s32 *temp, s32 *pressure) { s32 t = *temp, p = *pressure; s64 off, sens, dt; - dt = t - (chip_info->prom[5] << 8); - off = ((s64)chip_info->prom[2] << 17) + ((chip_info->prom[4] * dt) >> 6); - sens = ((s64)chip_info->prom[1] << 16) + ((chip_info->prom[3] * dt) >> 7); + dt = t - (st->prom[5] << 8); + off = ((s64)st->prom[2] << 17) + ((st->prom[4] * dt) >> 6); + sens = ((s64)st->prom[1] << 16) + ((st->prom[3] * dt) >> 7); - t = 2000 + ((chip_info->prom[6] * dt) >> 23); + t = 2000 + ((st->prom[6] * dt) >> 23); if (t < 2000) { s64 off2, sens2, t2, tmp; @@ -342,15 +341,6 @@ static int ms5611_write_raw(struct iio_dev *indio_dev, static const unsigned long ms5611_scan_masks[] = {0x3, 0}; -static struct ms5611_chip_info chip_info_tbl[] = { - [MS5611] = { - .temp_and_pressure_compensate = ms5611_temp_and_pressure_compensate, - }, - [MS5607] = { - .temp_and_pressure_compensate = ms5607_temp_and_pressure_compensate, - } -}; - static const struct iio_chan_spec ms5611_channels[] = { { .type = IIO_PRESSURE, @@ -433,7 +423,20 @@ int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, struct ms5611_state *st = iio_priv(indio_dev); mutex_init(&st->lock); - st->chip_info = &chip_info_tbl[type]; + + switch (type) { + case MS5611: + st->compensate_temp_and_pressure = + ms5611_temp_and_pressure_compensate; + break; + case MS5607: + st->compensate_temp_and_pressure = + ms5607_temp_and_pressure_compensate; + break; + default: + return -EINVAL; + } + st->temp_osr = &ms5611_avail_temp_osr[ARRAY_SIZE(ms5611_avail_temp_osr) - 1]; st->pressure_osr = diff --git a/drivers/iio/pressure/ms5611_spi.c b/drivers/iio/pressure/ms5611_spi.c index 432e912096f4..a0a7205c9c3a 100644 --- a/drivers/iio/pressure/ms5611_spi.c +++ b/drivers/iio/pressure/ms5611_spi.c @@ -91,7 +91,7 @@ static int ms5611_spi_probe(struct spi_device *spi) spi_set_drvdata(spi, indio_dev); spi->mode = SPI_MODE_0; - spi->max_speed_hz = 20000000; + spi->max_speed_hz = min(spi->max_speed_hz, 20000000U); spi->bits_per_word = 8; ret = spi_setup(spi); if (ret < 0) diff --git a/drivers/iio/trigger/iio-trig-sysfs.c b/drivers/iio/trigger/iio-trig-sysfs.c index 63ce01ac2036..575d725696a9 100644 --- a/drivers/iio/trigger/iio-trig-sysfs.c +++ b/drivers/iio/trigger/iio-trig-sysfs.c @@ -203,9 +203,13 @@ static int iio_sysfs_trigger_remove(int id) static int __init iio_sysfs_trig_init(void) { + int ret; device_initialize(&iio_sysfs_trig_dev); dev_set_name(&iio_sysfs_trig_dev, "iio_sysfs_trigger"); - return device_add(&iio_sysfs_trig_dev); + ret = device_add(&iio_sysfs_trig_dev); + if (ret) + put_device(&iio_sysfs_trig_dev); + return ret; } module_init(iio_sysfs_trig_init); |