From 732df35bbb94c06099cf8c64076233347b278516 Mon Sep 17 00:00:00 2001 From: Kyle Hsieh Date: Wed, 25 Mar 2026 10:24:20 +0800 Subject: [PATCH] dt-bindings: adc: ltc2497: add support for ltc2305 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). Reviewed-by: Rob Herring (Arm) Signed-off-by: Kyle Hsieh Signed-off-by: Jonathan Cameron --- .../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 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