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>
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@ -65,6 +65,9 @@
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#define OPT3001_REG_EXPONENT(n) ((n) >> 12)
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#define OPT3001_REG_MANTISSA(n) ((n) & 0xfff)
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#define OPT3001_INT_TIME_LONG 800000
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#define OPT3001_INT_TIME_SHORT 100000
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/*
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* Time to wait for conversion result to be ready. The device datasheet
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* worst-case max value is 880ms. Add some slack to be on the safe side.
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@ -325,13 +328,13 @@ static int opt3001_set_int_time(struct opt3001 *opt, int time)
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reg = ret;
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switch (time) {
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case 100000:
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case OPT3001_INT_TIME_SHORT:
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reg &= ~OPT3001_CONFIGURATION_CT;
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opt->int_time = 100000;
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opt->int_time = OPT3001_INT_TIME_SHORT;
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break;
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case 800000:
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case OPT3001_INT_TIME_LONG:
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reg |= OPT3001_CONFIGURATION_CT;
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opt->int_time = 800000;
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opt->int_time = OPT3001_INT_TIME_LONG;
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break;
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default:
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return -EINVAL;
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@ -597,9 +600,9 @@ static int opt3001_configure(struct opt3001 *opt)
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/* Reflect status of the device's integration time setting */
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if (reg & OPT3001_CONFIGURATION_CT)
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opt->int_time = 800000;
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opt->int_time = OPT3001_INT_TIME_LONG;
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else
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opt->int_time = 100000;
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opt->int_time = OPT3001_INT_TIME_SHORT;
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/* Ensure device is in shutdown initially */
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opt3001_set_mode(opt, ®, OPT3001_CONFIGURATION_M_SHUTDOWN);
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