[PATCH 3/6] dt-bindings: input: iqs269a: Add bindings for OTP variants

[Jeff LaBundy <jeff@labundy.com>]

This patch adds bindings for the D0 order code of the device. This
order code represents an OTP variant that enables a touch-and-hold
function in place of slider 1.

Also included is the ability to specify the 00 order code (default
option with no OTP customization) explicitly.

Signed-off-by: Jeff LaBundy <jeff@labundy.com>
---
 .../devicetree/bindings/input/iqs269a.yaml         | 30 +++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/input/iqs269a.yaml b/Documentation/devicetree/bindings/input/iqs269a.yaml
index e13812d..56a628e 100644
--- a/Documentation/devicetree/bindings/input/iqs269a.yaml
+++ b/Documentation/devicetree/bindings/input/iqs269a.yaml
@@ -17,7 +17,10 @@ description: |
 
 properties:
   compatible:
-    const: azoteq,iqs269a
+    enum:
+      - azoteq,iqs269a
+      - azoteq,iqs269a-00
+      - azoteq,iqs269a-d0
 
   reg:
     maxItems: 1
@@ -210,6 +213,16 @@ properties:
     default: 1
     description: Specifies the slider coordinate filter strength.
 
+  azoteq,touch-hold-ms:
+    multipleOf: 256
+    minimum: 256
+    maximum: 65280
+    default: 5120
+    description:
+      Specifies the length of time (in ms) for which the channel selected by
+      'azoteq,gpio3-select' must be held in a state of touch in order for an
+      approximately 60-ms pulse to be asserted on the GPIO4 pin.
+
   linux,keycodes:
     $ref: /schemas/types.yaml#/definitions/uint32-array
     minItems: 1
@@ -514,6 +527,21 @@ patternProperties:
 
     additionalProperties: false
 
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - azoteq,iqs269a-d0
+then:
+  patternProperties:
+    "^channel@[0-7]$":
+      properties:
+        azoteq,slider1-select: false
+else:
+  properties:
+    azoteq,touch-hold-ms: false
+
 required:
   - compatible
   - reg
-- 
2.7.4