linux-kernel - [PATCH v7 2/6] dt-bindings: iio: adc: ad7192: Add aincom supply

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Date: Tue, 30 Apr 2024 19:29:42 +0300
From: Alisa-Dariana Roman <alisadariana@...il.com>
To: michael.hennerich@...log.com,
	linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: alexandru.tachici@...log.com,
	lars@...afoo.de,
	Michael.Hennerich@...log.com,
	jic23@...nel.org,
	robh@...nel.org,
	krzysztof.kozlowski+dt@...aro.org,
	conor+dt@...nel.org,
	lgirdwood@...il.com,
	broonie@...nel.org,
	andy@...nel.org,
	nuno.sa@...log.com,
	marcelo.schmitt@...log.com,
	bigunclemax@...il.com,
	dlechner@...libre.com,
	okan.sahin@...log.com,
	fr0st61te@...il.com,
	alisa.roman@...log.com,
	marcus.folkesson@...il.com,
	schnelle@...ux.ibm.com,
	liambeguin@...il.com
Subject: [PATCH v7 2/6] dt-bindings: iio: adc: ad7192: Add aincom supply

AINCOM should actually be a supply. AINx inputs are referenced to AINCOM
in pseudo-differential operation mode. AINCOM voltage represents the
offset of corresponding channels.

Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
Signed-off-by: Alisa-Dariana Roman <alisa.roman@...log.com>
---
 Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
index 16def2985ab4..cf5c568f140a 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
@@ -41,6 +41,11 @@ properties:
   interrupts:
     maxItems: 1
 
+  aincom-supply:
+    description: |
+      AINCOM voltage supply. Analog inputs AINx are referenced to this input
+      when configured for pseudo-differential operation.
+
   dvdd-supply:
     description: DVdd voltage supply
 
@@ -117,6 +122,7 @@ examples:
             clock-names = "mclk";
             interrupts = <25 0x2>;
             interrupt-parent = <&gpio>;
+            aincom-supply = <&aincom>;
             dvdd-supply = <&dvdd>;
             avdd-supply = <&avdd>;
             vref-supply = <&vref>;
-- 
2.34.1