From 67f4f2b31da5120dcdb409b2fe33383437a4bad7 Mon Sep 17 00:00:00 2001 From: Kim Seer Paller Date: Tue, 5 May 2026 12:34:31 +0800 Subject: [PATCH] iio: ABI: Add DAC 500ohm, 3.85kohm, and 16kohm powerdown modes 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 Signed-off-by: Jonathan Cameron --- Documentation/ABI/testing/sysfs-bus-iio | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 60dfeff8f2c9..925a33fd309a 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -764,10 +764,13 @@ 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,