| commit | b475f80b354a1915fda1b34070d712b825b60543 | [log] [tgz] |
|---|---|---|
| author | Peter Rosin <peda@axentia.se> | Tue Nov 08 12:58:58 2016 +0100 |
| committer | Jonathan Cameron <jic23@kernel.org> | Sun Nov 13 13:07:17 2016 +0000 |
| tree | 02777a8c1349ace429f1dfa3e58e15661fed1eb5 | |
| parent | e778aa142ab0666fa8af789a3bbabfb3334e6ff5 [diff] |
iio: envelope-detector: ADC driver based on a DAC and a comparator
The DAC is used to find the peak level of an alternating voltage input
signal by a binary search using the output of a comparator wired to
an interrupt pin. Like so:
_
| \
input +------>-------|+ \
| \
.-------. | }---.
| | | / |
| dac|-->--|- / |
| | |_/ |
| | |
| | |
| irq|------<-------'
| |
'-------'
Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>