[PATCH v2] dt-bindings: iio: accel: adxl345: document second interrupt

[Wolfram Sang <wsa+renesas@sang-engineering.com>]

The pinout of all the supported chips in this binding have two interrupt
pins. Document the second one, too, even though the Linux driver
currently does not support the second interrupt. Boards may have it
wired nonetheless. While here, drop the dependency of interrupt-names
which is already described in the core.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---

Changes since v1 RFC:
* drop oneOf and encode interrupt-names differently (Rob)
* drop interrupt-names dependency (Rob)
* added tag from Geert, thanks!

 .../devicetree/bindings/iio/accel/adi,adxl345.yaml    | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml
index a23a626bfab6..61d7ba89adc2 100644
--- a/Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml
@@ -35,15 +35,17 @@ properties:
   spi-3wire: true
 
   interrupts:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   interrupt-names:
+    minItems: 1
     items:
       - enum: [INT1, INT2]
+      - const: INT2
 
 dependencies:
   interrupts: [ interrupt-names ]
-  interrupt-names: [ interrupts ]
 
 required:
   - compatible
@@ -84,7 +86,8 @@ examples:
             spi-cpol;
             spi-cpha;
             interrupt-parent = <&gpio0>;
-            interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
-            interrupt-names = "INT2";
+            interrupts = <0 IRQ_TYPE_LEVEL_HIGH>,
+                         <1 IRQ_TYPE_LEVEL_HIGH>;
+            interrupt-names = "INT1", "INT2";
         };
     };
-- 
2.47.2