diff options
Diffstat (limited to 'drivers/staging/iio/cdc/ad7746.c')
| -rw-r--r-- | drivers/staging/iio/cdc/ad7746.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/staging/iio/cdc/ad7746.c b/drivers/staging/iio/cdc/ad7746.c index 028b4e8..6cd15e6 100644 --- a/drivers/staging/iio/cdc/ad7746.c +++ b/drivers/staging/iio/cdc/ad7746.c @@ -68,12 +68,12 @@ #define AD7746_VTSETUP_VTCHOP (1 << 0) /* Excitation Setup Register Bit Designations (AD7746_REG_EXC_SETUP) */ -#define AD7746_EXCSETUP_CLKCTRL (1 << 7) -#define AD7746_EXCSETUP_EXCON (1 << 6) -#define AD7746_EXCSETUP_EXCB (1 << 5) -#define AD7746_EXCSETUP_NEXCB (1 << 4) -#define AD7746_EXCSETUP_EXCA (1 << 3) -#define AD7746_EXCSETUP_NEXCA (1 << 2) +#define AD7746_EXCSETUP_CLKCTRL BIT(7) +#define AD7746_EXCSETUP_EXCON BIT(6) +#define AD7746_EXCSETUP_EXCB BIT(5) +#define AD7746_EXCSETUP_NEXCB BIT(4) +#define AD7746_EXCSETUP_EXCA BIT(3) +#define AD7746_EXCSETUP_NEXCA BIT(2) #define AD7746_EXCSETUP_EXCLVL(x) (((x) & 0x3) << 0) /* Config Register Bit Designations (AD7746_REG_CFG) */ @@ -528,7 +528,8 @@ static int ad7746_write_raw(struct iio_dev *indio_dev, goto out; } - /* CAPDAC Scale = 21pF_typ / 127 + /* + * CAPDAC Scale = 21pF_typ / 127 * CIN Scale = 8.192pF / 2^24 * Offset Scale = CAPDAC Scale / CIN Scale = 338646 */ @@ -600,7 +601,8 @@ static int ad7746_read_raw(struct iio_dev *indio_dev, switch (chan->type) { case IIO_TEMP: - /* temperature in milli degrees Celsius + /* + * temperature in milli degrees Celsius * T = ((*val / 2048) - 4096) * 1000 */ *val = (*val * 125) / 256; @@ -753,8 +755,6 @@ static int ad7746_probe(struct i2c_client *client, if (ret) return ret; - dev_info(&client->dev, "%s capacitive sensor registered\n", id->name); - return 0; } |
