diff options
Diffstat (limited to 'drivers/staging/iio/adc/ad7291.c')
-rw-r--r-- | drivers/staging/iio/adc/ad7291.c | 53 |
1 files changed, 24 insertions, 29 deletions
diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c index 10e79e8ee64d..0a13616e3db9 100644 --- a/drivers/staging/iio/adc/ad7291.c +++ b/drivers/staging/iio/adc/ad7291.c @@ -19,6 +19,7 @@ #include "../iio.h" #include "../sysfs.h" +#include "../events.h" /* * Simplified handling @@ -500,7 +501,7 @@ static int ad7291_read_raw(struct iio_dev *indio_dev, default: return -EINVAL; } - case (1 << IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE): + case IIO_CHAN_INFO_AVERAGE_RAW: ret = i2c_smbus_read_word_data(chip->client, AD7291_T_AVERAGE); if (ret < 0) @@ -509,18 +510,24 @@ static int ad7291_read_raw(struct iio_dev *indio_dev, AD7291_VALUE_MASK) << 4) >> 4; *val = signval; return IIO_VAL_INT; - case (1 << IIO_CHAN_INFO_SCALE_SHARED): - scale_uv = (chip->int_vref_mv * 1000) >> AD7291_BITS; - *val = scale_uv / 1000; - *val2 = (scale_uv % 1000) * 1000; - return IIO_VAL_INT_PLUS_MICRO; - case (1 << IIO_CHAN_INFO_SCALE_SEPARATE): - /* - * One LSB of the ADC corresponds to 0.25 deg C. - * The temperature reading is in 12-bit twos complement format - */ - *val = 250; - return IIO_VAL_INT; + case IIO_CHAN_INFO_SCALE: + switch (chan->type) { + case IIO_VOLTAGE: + scale_uv = (chip->int_vref_mv * 1000) >> AD7291_BITS; + *val = scale_uv / 1000; + *val2 = (scale_uv % 1000) * 1000; + return IIO_VAL_INT_PLUS_MICRO; + case IIO_TEMP: + /* + * One LSB of the ADC corresponds to 0.25 deg C. + * The temperature reading is in 12-bit twos + * complement format + */ + *val = 250; + return IIO_VAL_INT; + default: + return -EINVAL; + } default: return -EINVAL; } @@ -529,7 +536,7 @@ static int ad7291_read_raw(struct iio_dev *indio_dev, #define AD7291_VOLTAGE_CHAN(_chan) \ { \ .type = IIO_VOLTAGE, \ - .info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED), \ + .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT, \ .indexed = 1, \ .channel = _chan, \ .event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING)|\ @@ -547,8 +554,8 @@ static const struct iio_chan_spec ad7291_channels[] = { AD7291_VOLTAGE_CHAN(7), { .type = IIO_TEMP, - .info_mask = (1 << IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE) | - (1 << IIO_CHAN_INFO_SCALE_SEPARATE), + .info_mask = IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE_BIT | + IIO_CHAN_INFO_SCALE_SEPARATE_BIT, .indexed = 1, .channel = 0, .event_mask = @@ -700,20 +707,8 @@ static struct i2c_driver ad7291_driver = { .remove = __devexit_p(ad7291_remove), .id_table = ad7291_id, }; - -static __init int ad7291_init(void) -{ - return i2c_add_driver(&ad7291_driver); -} - -static __exit void ad7291_exit(void) -{ - i2c_del_driver(&ad7291_driver); -} +module_i2c_driver(ad7291_driver); MODULE_AUTHOR("Sonic Zhang <sonic.zhang@analog.com>"); MODULE_DESCRIPTION("Analog Devices AD7291 ADC driver"); MODULE_LICENSE("GPL v2"); - -module_init(ad7291_init); -module_exit(ad7291_exit); |