From: Kim Seer Paller <kimseer.paller@analog.com>
To: "Jonathan Cameron" <jic23@kernel.org>,
"David Lechner" <dlechner@baylibre.com>,
"Nuno Sá" <nuno.sa@analog.com>,
"Andy Shevchenko" <andy@kernel.org>,
"Lars-Peter Clausen" <lars@metafoo.de>,
"Michael Hennerich" <Michael.Hennerich@analog.com>
Cc: <linux-iio@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Kim Seer Paller <kimseer.paller@analog.com>,
Jonathan Cameron <jic23@kernel.org>
Subject: [PATCH 1/2] iio: ABI: Add DAC 500ohm, 3.85kohm, and 16kohm powerdown modes
Date: Tue, 5 May 2026 12:34:31 +0800 [thread overview]
Message-ID: <20260505-dev-ad3531r-v1-1-2b4cc55f69e7@analog.com> (raw)
In-Reply-To: <20260505-dev-ad3531r-v1-0-2b4cc55f69e7@analog.com>
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>
---
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,
--
2.34.1
next prev parent reply other threads:[~2026-05-05 4:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-05 4:34 [PATCH 0/2] Fix AD3531/AD3531R powerdown modes Kim Seer Paller
2026-05-05 4:34 ` Kim Seer Paller [this message]
2026-05-06 16:23 ` [PATCH 1/2] iio: ABI: Add DAC 500ohm, 3.85kohm, and 16kohm " Jonathan Cameron
2026-05-05 4:34 ` [PATCH 2/2] iio: dac: ad3530r: Fix AD3531/AD3531R powerdown mode strings Kim Seer Paller
2026-05-06 16:25 ` Jonathan Cameron
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