linux-kernel - [PATCH 1/2] dt-bindings: input: touchscreen: Add ilitek 9882T touchscreen chip

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Date:   Fri,  2 Jun 2023 22:09:47 +0800
From:   Cong Yang <yangcong5@...qin.corp-partner.google.com>
To:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, dmitry.torokhov@...il.com, jikos@...nel.org,
        benjamin.tissoires@...hat.com, dianders@...omium.org,
        hsinyi@...gle.com
Cc:     linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Cong Yang <yangcong5@...qin.corp-partner.google.com>
Subject: [PATCH 1/2] dt-bindings: input: touchscreen: Add ilitek 9882T touchscreen chip

Add an ilitek touch screen chip ili9882t.

Signed-off-by: Cong Yang <yangcong5@...qin.corp-partner.google.com>
---
 .../bindings/input/elan,ekth6915.yaml         | 36 ++++++++++++++-----
 1 file changed, 27 insertions(+), 9 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/elan,ekth6915.yaml b/Documentation/devicetree/bindings/input/elan,ekth6915.yaml
index 05e6f2df604c..73e94cb6c4e0 100644
--- a/Documentation/devicetree/bindings/input/elan,ekth6915.yaml
+++ b/Documentation/devicetree/bindings/input/elan,ekth6915.yaml
@@ -15,11 +15,15 @@ description:
 
 properties:
   compatible:
-    items:
-      - const: elan,ekth6915
+    oneOf:
+      - enum:
+        - elan,ekth6915
+        - ilitek,ili9882t
 
   reg:
-    const: 0x10
+    enum:
+      - 0x10
+      - 0x41
 
   interrupts:
     maxItems: 1
@@ -29,17 +33,31 @@ properties:
 
   vcc33-supply:
     description: The 3.3V supply to the touchscreen.
+                 If using ili9882t then this supply will not be needed.
 
   vccio-supply:
     description:
       The IO supply to the touchscreen. Need not be specified if this is the
       same as the 3.3V supply.
-
-required:
-  - compatible
-  - reg
-  - interrupts
-  - vcc33-supply
+      If using ili9882t, the IO supply is required.
+
+  required:
+    - compatible
+    - reg
+    - interrupts
+    - vcc33-supply
+
+if:
+  properties:
+    compatible:
+      contains:
+        const: ilitek,ili9882t
+then:
+  required:
+    - compatible
+    - reg
+    - interrupts
+    - vccio-supply
 
 additionalProperties: false
 
-- 
2.25.1