diff options
| author | Alexander Koch <mail@alexanderkoch.net> | 2016-01-16 17:14:36 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2016-01-30 16:26:12 +0000 |
| commit | 564cff826fd14b8a2f71e663dec8e53b2243a836 (patch) | |
| tree | 0059b1ec3628945354f941ca00e7045d285af26e /drivers/iio/light | |
| parent | b6acb0cfc21293a1bfc283e9217f58f7474ef728 (diff) | |
| download | talos-obmc-linux-564cff826fd14b8a2f71e663dec8e53b2243a836.tar.gz talos-obmc-linux-564cff826fd14b8a2f71e663dec8e53b2243a836.zip | |
iio: light: opt3001: extract int. time constants
Extract integration times as #define constants. This prepares using them
for delay/timeout length determination.
Signed-off-by: Alexander Koch <mail@alexanderkoch.net>
Signed-off-by: Michael Hornung <mhornung.linux@gmail.com>
Tested-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/light')
| -rw-r--r-- | drivers/iio/light/opt3001.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c index 01e111e72d4b..aefbd7989bda 100644 --- a/drivers/iio/light/opt3001.c +++ b/drivers/iio/light/opt3001.c @@ -65,6 +65,9 @@ #define OPT3001_REG_EXPONENT(n) ((n) >> 12) #define OPT3001_REG_MANTISSA(n) ((n) & 0xfff) +#define OPT3001_INT_TIME_LONG 800000 +#define OPT3001_INT_TIME_SHORT 100000 + /* * Time to wait for conversion result to be ready. The device datasheet * worst-case max value is 880ms. Add some slack to be on the safe side. @@ -325,13 +328,13 @@ static int opt3001_set_int_time(struct opt3001 *opt, int time) reg = ret; switch (time) { - case 100000: + case OPT3001_INT_TIME_SHORT: reg &= ~OPT3001_CONFIGURATION_CT; - opt->int_time = 100000; + opt->int_time = OPT3001_INT_TIME_SHORT; break; - case 800000: + case OPT3001_INT_TIME_LONG: reg |= OPT3001_CONFIGURATION_CT; - opt->int_time = 800000; + opt->int_time = OPT3001_INT_TIME_LONG; break; default: return -EINVAL; @@ -597,9 +600,9 @@ static int opt3001_configure(struct opt3001 *opt) /* Reflect status of the device's integration time setting */ if (reg & OPT3001_CONFIGURATION_CT) - opt->int_time = 800000; + opt->int_time = OPT3001_INT_TIME_LONG; else - opt->int_time = 100000; + opt->int_time = OPT3001_INT_TIME_SHORT; /* Ensure device is in shutdown initially */ opt3001_set_mode(opt, ®, OPT3001_CONFIGURATION_M_SHUTDOWN); |
