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iio: ABI: Add DAC 500ohm, 3.85kohm, and 16kohm powerdown modes

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Add powerdown mode entries for DACs with 500 Ohm, 3.85 kOhm, and
16 kOhm resistor to ground output impedance states. These are used
by the AD3531/AD3531R 4-channel DAC.

Signed-off-by: Kim Seer Paller <kimseer.paller@analog.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Kim Seer Paller
2026-05-05 12:34:31 +08:00
committed by Nuno Sá
parent d762978ca7
commit 37eb918ac6
1 changed files with 3 additions and 0 deletions
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Documentation/ABI/testing/sysfs-bus-iio
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@@ -745,10 +745,13 @@ Contact: linux-iio@vger.kernel.org
Description:
Specifies the output powerdown mode.
DAC output stage is disconnected from the amplifier and
500ohm_to_gnd: connected to ground via a 500Ohm resistor,
1kohm_to_gnd: connected to ground via an 1kOhm resistor,
2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor,
3.85kohm_to_gnd: connected to ground via a 3.85kOhm resistor,
6kohm_to_gnd: connected to ground via a 6kOhm resistor,
7.7kohm_to_gnd: connected to ground via a 7.7kOhm resistor,
16kohm_to_gnd: connected to ground via a 16kOhm resistor,
20kohm_to_gnd: connected to ground via a 20kOhm resistor,
32kohm_to_gnd: connected to ground via a 32kOhm resistor,
42kohm_to_gnd: connected to ground via a 42kOhm resistor,