linux-kernel - [PATCH 1/3] dt-bindings: iio: hmc425a: add entry for LTC6373

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Message-ID: <20231221113842.25957-2-mitrutzceclan@gmail.com>
Date: Thu, 21 Dec 2023 13:38:38 +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 1/3] 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     | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
index 67de9d4e3a1d..8e7d99823059 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 +41,19 @@ properties:
     minItems: 6
     maxItems: 6
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: adi,ltc6373
+
+    then:
+      properties:
+        ctrl-gpios:
+          minItems: 3
+          maxItems: 3
+
 required:
   - compatible
   - ctrl-gpios
-- 
2.42.0