[PATCH v2 1/2] dt-bindings: iio: adc: ad7405: Add ADuM7801/7802/7811/7812 support

[Pop Ioan Daniel <pop.ioan-daniel@analog.com>]

Add compatible strings for the ADuM7801, ADuM7802, ADuM7811 and
ADuM7812 16-bit isolated sigma-delta modulators.

The ADuM7801 and ADuM7811 have the same ±320 mV full-scale input range
as the ADuM7701, and the ADuM7802 and ADuM7812 have the same ±64 mV
full-scale input range as the ADuM7702. Apart from that, software
handles them the same way. The ADuM780x support a master clock of up
to 25 MHz and the ADuM781x of up to 50 MHz, which needs no special
handling. Use the ADuM7701 and ADuM7702 as fallback compatibles.

Signed-off-by: Pop Ioan Daniel <pop.ioan-daniel@analog.com>
---
changes in v2:
 - use adi,adum7701 as fallback compatible for ADuM7801/7811 and
   adi,adum7702 for ADuM7802/7812

 .../bindings/iio/adc/adi,ad7405.yaml          | 25 +++++++++++++++----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7405.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7405.yaml
index 57f0970257050..41eef107e9f0d 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7405.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7405.yaml
@@ -20,14 +20,29 @@ description: |
   https://www.analog.com/media/en/technical-documentation/data-sheets/adum7701.pdf
   https://www.analog.com/media/en/technical-documentation/data-sheets/adum7702.pdf
   https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM7703.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/adum7801.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/adum7802.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/adum7811.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/adum7812.pdf
 
 properties:
   compatible:
-    enum:
-      - adi,ad7405
-      - adi,adum7701
-      - adi,adum7702
-      - adi,adum7703
+    oneOf:
+      - enum:
+          - adi,ad7405
+          - adi,adum7701
+          - adi,adum7702
+          - adi,adum7703
+      - items:
+          - enum:
+              - adi,adum7801
+              - adi,adum7811
+          - const: adi,adum7701
+      - items:
+          - enum:
+              - adi,adum7802
+              - adi,adum7812
+          - const: adi,adum7702
 
   clocks:
     maxItems: 1
-- 
2.34.1