diff options
Diffstat (limited to 'drivers/iio/accel/adxl345_core.c')
| -rw-r--r-- | drivers/iio/accel/adxl345_core.c | 56 |
1 files changed, 33 insertions, 23 deletions
diff --git a/drivers/iio/accel/adxl345_core.c b/drivers/iio/accel/adxl345_core.c index 4b275051ef61..370bfec1275a 100644 --- a/drivers/iio/accel/adxl345_core.c +++ b/drivers/iio/accel/adxl345_core.c @@ -8,6 +8,7 @@ */ #include <linux/module.h> +#include <linux/property.h> #include <linux/regmap.h> #include <linux/iio/iio.h> @@ -194,7 +195,7 @@ static IIO_CONST_ATTR_SAMP_FREQ_AVAIL( static struct attribute *adxl345_attrs[] = { &iio_const_attr_sampling_frequency_available.dev_attr.attr, - NULL, + NULL }; static const struct attribute_group adxl345_attrs_group = { @@ -208,30 +209,44 @@ static const struct iio_info adxl345_info = { .write_raw_get_fmt = adxl345_write_raw_get_fmt, }; +static int adxl345_powerup(void *regmap) +{ + return regmap_write(regmap, ADXL345_REG_POWER_CTL, ADXL345_POWER_CTL_MEASURE); +} + static void adxl345_powerdown(void *regmap) { regmap_write(regmap, ADXL345_REG_POWER_CTL, ADXL345_POWER_CTL_STANDBY); } -int adxl345_core_probe(struct device *dev, struct regmap *regmap, - enum adxl345_device_type type, const char *name) +int adxl345_core_probe(struct device *dev, struct regmap *regmap) { + enum adxl345_device_type type; struct adxl345_data *data; struct iio_dev *indio_dev; + const char *name; u32 regval; int ret; - ret = regmap_read(regmap, ADXL345_REG_DEVID, ®val); - if (ret < 0) { - dev_err(dev, "Error reading device ID: %d\n", ret); - return ret; + type = (uintptr_t)device_get_match_data(dev); + switch (type) { + case ADXL345: + name = "adxl345"; + break; + case ADXL375: + name = "adxl375"; + break; + default: + return -EINVAL; } - if (regval != ADXL345_DEVID) { - dev_err(dev, "Invalid device ID: %x, expected %x\n", - regval, ADXL345_DEVID); - return -ENODEV; - } + ret = regmap_read(regmap, ADXL345_REG_DEVID, ®val); + if (ret < 0) + return dev_err_probe(dev, ret, "Error reading device ID\n"); + + if (regval != ADXL345_DEVID) + return dev_err_probe(dev, -ENODEV, "Invalid device ID: %x, expected %x\n", + regval, ADXL345_DEVID); indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); if (!indio_dev) @@ -245,10 +260,8 @@ int adxl345_core_probe(struct device *dev, struct regmap *regmap, ret = regmap_write(data->regmap, ADXL345_REG_DATA_FORMAT, data->data_range); - if (ret < 0) { - dev_err(dev, "Failed to set data range: %d\n", ret); - return ret; - } + if (ret < 0) + return dev_err_probe(dev, ret, "Failed to set data range\n"); indio_dev->name = name; indio_dev->info = &adxl345_info; @@ -257,12 +270,9 @@ int adxl345_core_probe(struct device *dev, struct regmap *regmap, indio_dev->num_channels = ARRAY_SIZE(adxl345_channels); /* Enable measurement mode */ - ret = regmap_write(data->regmap, ADXL345_REG_POWER_CTL, - ADXL345_POWER_CTL_MEASURE); - if (ret < 0) { - dev_err(dev, "Failed to enable measurement mode: %d\n", ret); - return ret; - } + ret = adxl345_powerup(data->regmap); + if (ret < 0) + return dev_err_probe(dev, ret, "Failed to enable measurement mode\n"); ret = devm_add_action_or_reset(dev, adxl345_powerdown, data->regmap); if (ret < 0) @@ -270,7 +280,7 @@ int adxl345_core_probe(struct device *dev, struct regmap *regmap, return devm_iio_device_register(dev, indio_dev); } -EXPORT_SYMBOL_GPL(adxl345_core_probe); +EXPORT_SYMBOL_NS_GPL(adxl345_core_probe, IIO_ADXL345); MODULE_AUTHOR("Eva Rachel Retuya <eraretuya@gmail.com>"); MODULE_DESCRIPTION("ADXL345 3-Axis Digital Accelerometer core driver"); |