iio: light sensor: Improve granularity of tsl2583 lux values.

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When illuminance0_calibbias gets 4000 (for a 4x multiplier), we see lux
granularity of 4.  Reversing the order of the right shift and multiplication
retains the precision of the unadjusted lux value.

Signed-off-by: Bryan Freed <bfreed@chromium.org>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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Bryan Freed 2011-12-02 14:19:30 -08:00 • committed by Greg Kroah-Hartman

parent d666c0d490

commit 014fcb1db5

1 changed files with 14 additions and 3 deletions

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drivers/staging/iio/light/tsl2583.c

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