[PATCH v3 1/2] dt-bindings: adc: ltc2497: add support for ltc2305
From: Kyle Hsieh <hidden>
Date: 2026-01-26 01:29:59
Also in:
linux-iio, lkml
Subsystem:
analog devices inc iio drivers, iio subsystem and drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Nuno Sá, Michael Hennerich, Jonathan Cameron, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
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 <redacted> --- 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
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2.34.1