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Date: Wed, 10 Jan 2024 17:37:10 +0200
From: Dumitru Ceclan <mitrutzceclan@...il.com>
To:
Cc: Lars-Peter Clausen <lars@...afoo.de>,
Jonathan Cameron <jic23@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
linux-iio@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Ceclan Dumitru <dumitru.ceclan@...log.com>,
Dumitru Ceclan <mitrutzceclan@...il.com>
Subject: [PATCH v2 2/4] dt-bindings: iio: hmc425a: add entry for LTC6373
The LTC6373 is a silicon, 3-bit Fully-Differential digital instrumentation
amplifier that supports the following programmable gains (Vout/Vin):
G = 0.25, 0.5, 1, 2, 4, 8, 16 + Shutdown.
Signed-off-by: Dumitru Ceclan <mitrutzceclan@...il.com>
---
.../bindings/iio/amplifiers/adi,hmc425a.yaml | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
index a434cb8ddcc9..3a470459b965 100644
--- a/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
+++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
@@ -21,6 +21,8 @@ description: |
HMC540S 1 dB LSB Silicon MMIC 4-Bit Digital Positive Control Attenuator, 0.1 - 8 GHz
https://www.analog.com/media/en/technical-documentation/data-sheets/hmc540s.pdf
+ LTC6373 is a 3-Bit precision instrumentation amplifier with fully differential outputs
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ltc6373.pdf
properties:
compatible:
@@ -28,6 +30,7 @@ properties:
- adi,adrf5740
- adi,hmc425a
- adi,hmc540s
+ - adi,ltc6373
vcc-supply: true
@@ -38,6 +41,7 @@ properties:
ADRF5740 - 4 GPIO connected to D2-D5
HMC540S - 4 GPIO connected to V1-V4
HMC425A - 6 GPIO connected to V1-V6
+ LTC6373 - 3 GPIO connected to A0-A2
minItems: 1
maxItems: 6
@@ -64,6 +68,16 @@ allOf:
ctrl-gpios:
minItems: 4
maxItems: 4
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: adi,ltc6373
+ then:
+ properties:
+ ctrl-gpios:
+ minItems: 3
+ maxItems: 3
required:
- compatible
--
2.42.0
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