dt-bindings: iio: dac: ltc2632: add LTC2654 compatible strings

Add compatible strings for the LTC2654 quad-channel DAC family.

The LTC2654 devices are 4-channel, 16-/12-bit DACs with an internal
reference and SPI interface. They use the same 24-bit SPI command
format as the LTC2632/2634/2636 family.

The 16-bit variants (LTC2654-L16 and LTC2654-H16) require new
compatible strings, as no existing compatibles support 16-bit
resolution.

The 12-bit variants (LTC2654-L12 and LTC2654-H12) are register-
compatible with LTC2634-L12 and LTC2634-H12 respectively, and can
use them as fallback compatibles.

Signed-off-by: David Marinovic <david.marinovic@pupin.rs>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml b/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml
index 733edc7d6d17ee09c913be64a4eba69b7d5a0d75..50a9cbb44e3646465fd0ee7b49ad0b8258a5758f 100644 (file)
--- a/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml
@@ -4,36 +4,49 @@
 $id: http://devicetree.org/schemas/iio/dac/lltc,ltc2632.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Linear Technology LTC263x 12-/10-/8-Bit Rail-to-Rail DAC
+title: Linear Technology LTC263x and LTC2654 Rail-to-Rail DAC
 
 maintainers:
   - Michael Hennerich <michael.hennerich@analog.com>
 
 description: |
-  Bindings for the Linear Technology LTC2632/2634/2636 DAC
-  Datasheet can be found here: https://www.analog.com/media/en/technical-documentation/data-sheets/LTC263[246].pdf
+  Bindings for the Linear Technology LTC2632/2634/2636/2654 DAC
+  Datasheet can be found here:
+    https://www.analog.com/media/en/technical-documentation/data-sheets/LTC263[246].pdf
+    https://www.analog.com/media/en/technical-documentation/data-sheets/2654f.pdf
 
 properties:
   compatible:
-    enum:
-      - lltc,ltc2632-l12
-      - lltc,ltc2632-l10
-      - lltc,ltc2632-l8
-      - lltc,ltc2632-h12
-      - lltc,ltc2632-h10
-      - lltc,ltc2632-h8
-      - lltc,ltc2634-l12
-      - lltc,ltc2634-l10
-      - lltc,ltc2634-l8
-      - lltc,ltc2634-h12
-      - lltc,ltc2634-h10
-      - lltc,ltc2634-h8
-      - lltc,ltc2636-l12
-      - lltc,ltc2636-l10
-      - lltc,ltc2636-l8
-      - lltc,ltc2636-h12
-      - lltc,ltc2636-h10
-      - lltc,ltc2636-h8
+    oneOf:
+      - enum:
+          - lltc,ltc2632-l12
+          - lltc,ltc2632-l10
+          - lltc,ltc2632-l8
+          - lltc,ltc2632-h12
+          - lltc,ltc2632-h10
+          - lltc,ltc2632-h8
+          - lltc,ltc2634-l12
+          - lltc,ltc2634-l10
+          - lltc,ltc2634-l8
+          - lltc,ltc2634-h12
+          - lltc,ltc2634-h10
+          - lltc,ltc2634-h8
+          - lltc,ltc2636-l12
+          - lltc,ltc2636-l10
+          - lltc,ltc2636-l8
+          - lltc,ltc2636-h12
+          - lltc,ltc2636-h10
+          - lltc,ltc2636-h8
+          - lltc,ltc2654-l16
+          - lltc,ltc2654-h16
+      - items:
+          - enum:
+              - lltc,ltc2654-l12
+          - const: lltc,ltc2634-l12
+      - items:
+          - enum:
+              - lltc,ltc2654-h12
+          - const: lltc,ltc2634-h12
 
   reg:
     maxItems: 1