From: Kyle Hsieh <kylehsieh1995@gmail.com>
To: "Lars-Peter Clausen" <lars@metafoo.de>,
"Michael Hennerich" <Michael.Hennerich@analog.com>,
"Jonathan Cameron" <jic23@kernel.org>,
"David Lechner" <dlechner@baylibre.com>,
"Nuno Sá" <nuno.sa@analog.com>,
"Andy Shevchenko" <andy@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Liam Beguin" <liambeguin@gmail.com>
Cc: Michael Hennerich <michael.hennerich@analog.com>,
linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Kyle Hsieh <kylehsieh1995@gmail.com>
Subject: [PATCH 1/2] dt-bindings: adc: ltc2497: add support for ltc2305
Date: Tue, 23 Dec 2025 17:12:25 +0800 [thread overview]
Message-ID: <20251223-add_ltc2305_driver-v1-1-dfa0827fd620@gmail.com> (raw)
In-Reply-To: <20251223-add_ltc2305_driver-v1-0-dfa0827fd620@gmail.com>
Add documentation for the 2-channel LTC2305 ADC in the
existing ltc2497 binding.
This enables automatic device tree matching for LTC2305
while using the LTC2309 driver (drivers/iio/adc/ltc2309.c),
since both ADCs share the same I2C interface and 12-bit SAR architecture.
The main difference is the number of channels (LTC2305: 2, LTC2309: 8).
Signed-off-by: Kyle Hsieh <kylehsieh1995@gmail.com>
---
Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml
index 5cc6a9684077..c884b6e03767 100644
--- a/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml
@@ -11,6 +11,12 @@ maintainers:
- Liam Beguin <liambeguin@gmail.com>
description: |
+ LTC2305:
+ low noise, low power, 2-channel, 12-bit successive approximation ADC with an
+ I2C compatible serial interface.
+
+ https://www.analog.com/media/en/technical-documentation/data-sheets/23015fb.pdf
+
LTC2309:
low noise, low power, 8-channel, 12-bit successive approximation ADC with an
I2C compatible serial interface.
@@ -28,6 +34,7 @@ description: |
properties:
compatible:
enum:
+ - lltc,ltc2305
- lltc,ltc2309
- lltc,ltc2497
- lltc,ltc2499
--
2.34.1
next prev parent reply other threads:[~2025-12-23 9:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-23 9:12 [PATCH 0/2] iio: adc: ltc2309: add support driver for ltc2305 Kyle Hsieh
2025-12-23 9:12 ` Kyle Hsieh [this message]
2025-12-23 9:12 ` [PATCH 2/2] iio: adc: ltc2309: add support " Kyle Hsieh
2025-12-23 18:38 ` David Lechner
2025-12-24 5:06 ` Kyle Hsieh
2025-12-23 20:35 ` kernel test robot
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