linux-kernel - [PATCH 5/9] dt-bindings: iio: adc: adi,ad7606: add conditions

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Date: Tue, 18 Jun 2024 14:02:37 +0000
From: Guillaume Stols <gstols@...libre.com>
To: Lars-Peter Clausen <lars@...afoo.de>, 
 Michael Hennerich <Michael.Hennerich@...log.com>, 
 Jonathan Cameron <jic23@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Beniamin Bia <beniamin.bia@...log.com>, 
 Stefan Popa <stefan.popa@...log.com>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Michael Hennerich <michael.hennerich@...log.com>, 
 linux-fbdev@...r.kernel.org, devicetree@...r.kernel.org, 
 Jonathan Cameron <Jonathan.Cameron@...wei.com>, 
 Guillaume Stols <gstols@...libre.com>, jstephan@...libre.com, 
 dlechner@...libre.com
Subject: [PATCH 5/9] dt-bindings: iio: adc: adi,ad7606: add conditions

Since the driver supports several parts that present differences in
their layout and behaviour, it is necessary to describe the differences
from one chip to another.

Signed-off-by: Guillaume Stols <gstols@...libre.com>
---
 .../devicetree/bindings/iio/adc/adi,ad7606.yaml    | 50 +++++++++++++++++++++-
 1 file changed, 48 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
index e480c9a7c7ca..65d6ca5843d7 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
@@ -55,7 +55,8 @@ properties:
       Must be the device tree identifier of the CONVST pin(s). This logic input
       is used to initiate conversions on the analog input channels. As the line
       is active high, it should be marked GPIO_ACTIVE_HIGH.
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   reset-gpios:
     description:
@@ -91,7 +92,8 @@ properties:
       GPIO_ACTIVE_HIGH. On the AD7616, there are 2 pins, and if the 2 pins are
       tied to a logic high, software mode is enabled, otherwise one of the 3
       possible range values is selected.
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   adi,oversampling-ratio-gpios:
     description:
@@ -123,6 +125,50 @@ required:
 allOf:
   - $ref: /schemas/spi/spi-peripheral-props.yaml#
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: adi,ad7616
+    then:
+      properties:
+        adi,first-data-gpios: false
+        standby-gpios: false
+        adi,range-gpios:
+          maxItems: 2
+    else:
+      properties:
+        adi,range-gpios:
+          maxItems: 1
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - adi,ad7605-4
+              - adi,ad7616
+    then:
+      properties:
+        adi,oversampling-ratio-gpios: false
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - adi,ad7605-4
+              - adi,ad7606-4
+              - adi,ad7606-6
+              - adi,ad7606-8
+    then:
+      properties:
+        adi,sw-mode: false
+    else:
+      properties:
+        adi,conversion-start-gpios:
+          maxItems: 1
+
 unevaluatedProperties: false
 
 examples:

-- 
2.34.1