linux-kernel - [PATCH v3 2/3] dt-bindings: input: imagis: Document touch keys

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Date: Wed, 06 Mar 2024 15:40:07 +0100
From: Duje Mihanović <duje.mihanovic@...le.hr>
To: Markuss Broks <markuss.broks@...il.com>, 
 Dmitry Torokhov <dmitry.torokhov@...il.com>, 
 Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Karel Balej <balejk@...fyz.cz>, ~postmarketos/upstreaming@...ts.sr.ht, 
 phone-devel@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-input@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Duje Mihanović <duje.mihanovic@...le.hr>
Subject: [PATCH v3 2/3] dt-bindings: input: imagis: Document touch keys

IST3032C (and possibly some other models) has touch keys. Document this.

Signed-off-by: Duje Mihanović <duje.mihanovic@...le.hr>
---
Changes in v3:
- Move allOf under additionalProperties and move if under allOf
- Properly define linux,keycodes
- Fix linux,keycodes constraint
- Change maximum number of keycodes to 5 in accordance with the size of
  the key status field

Changes in v2:
- Allow specifying custom keycodes and document this in binding
---
 .../bindings/input/touchscreen/imagis,ist3038c.yaml   | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/imagis,ist3038c.yaml b/Documentation/devicetree/bindings/input/touchscreen/imagis,ist3038c.yaml
index 2af71cbcc97d..77ba280b3bdc 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/imagis,ist3038c.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/imagis,ist3038c.yaml
@@ -9,9 +9,6 @@ title: Imagis IST30XXC family touchscreen controller
 maintainers:
   - Markuss Broks <markuss.broks@...il.com>
 
-allOf:
-  - $ref: touchscreen.yaml#
-
 properties:
   $nodename:
     pattern: "^touchscreen@[0-9a-f]+$"
@@ -34,6 +31,10 @@ properties:
   vddio-supply:
     description: Power supply regulator for the I2C bus
 
+  linux,keycodes:
+    description: Keycodes for the touch keys
+    maxItems: 5
+
   touchscreen-size-x: true
   touchscreen-size-y: true
   touchscreen-fuzz-x: true
@@ -44,6 +45,18 @@ properties:
 
 additionalProperties: false
 
+allOf:
+  - $ref: touchscreen.yaml#
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              const: imagis,ist3032c
+    then:
+      properties:
+        linux,keycodes: false
+
 required:
   - compatible
   - reg

-- 
2.44.0