linux-kernel - [PATCH 1/1] dt-bindings: input: exc3000: move eeti,egalax_ts from egalax-ts.txt to eeti,exc3000.yaml

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Message-Id: <20250903163428.429924-1-Frank.Li@nxp.com>
Date: Wed,  3 Sep 2025 12:34:26 -0400
From: Frank Li <Frank.Li@....com>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-input@...r.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK, TOUCHSCREEN)...),
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-kernel@...r.kernel.org (open list)
Cc: imx@...ts.linux.dev
Subject: [PATCH 1/1] dt-bindings: input: exc3000: move eeti,egalax_ts from egalax-ts.txt to eeti,exc3000.yaml

Remove legacy binding egalax-ts.txt file. And add compatible string
eeti,egalax_ts and wakeup-gpios to eeti,exc3000.yaml. "eeti,egalax_ts" is
general compatible string, which is not preferred. But it is compatible
with old devices (older than 10 years) and existing driver in
drivers/input/touchscreen/egalax_ts.c.

Fix below DTB_CHECKS warnings:
arch/arm/boot/dts/nxp/imx/imx6dl-gw52xx.dtb: /soc/bus@...0000/i2c@...8000/egalax_ts@4: failed to match any schema with compatible: ['eeti,egalax_ts']

Signed-off-by: Frank Li <Frank.Li@....com>
---
 .../input/touchscreen/eeti,exc3000.yaml        | 18 +++++++++++++++---
 .../bindings/input/touchscreen/egalax-ts.txt   | 18 ------------------
 2 files changed, 15 insertions(+), 21 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt

diff --git a/Documentation/devicetree/bindings/input/touchscreen/eeti,exc3000.yaml b/Documentation/devicetree/bindings/input/touchscreen/eeti,exc3000.yaml
index 1c7ae05a8c15e..40449ed168284 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/eeti,exc3000.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/eeti,exc3000.yaml
@@ -9,15 +9,13 @@ title: EETI EXC3000 series touchscreen controller
 maintainers:
   - Dmitry Torokhov <dmitry.torokhov@...il.com>
 
-allOf:
-  - $ref: touchscreen.yaml#
-
 properties:
   compatible:
     oneOf:
       - const: eeti,exc3000
       - const: eeti,exc80h60
       - const: eeti,exc80h84
+      - const: eeti,egalax_ts # Do NOT use for new binding
       - items:
           - enum:
               - eeti,exc81w32
@@ -28,6 +26,8 @@ properties:
     maxItems: 1
   reset-gpios:
     maxItems: 1
+  wakeup-gpios:
+    maxItems: 1
   vdd-supply:
     description: Power supply regulator for the chip
   touchscreen-size-x: true
@@ -45,6 +45,18 @@ required:
 
 additionalProperties: false
 
+allOf:
+  - $ref: touchscreen.yaml#
+
+  - if:
+      properties:
+        compatible:
+          not:
+            const: eeti,egalax_ts
+    then:
+      properties:
+        wakeup-gpios: false
+
 examples:
   - |
     #include "dt-bindings/interrupt-controller/irq.h"
diff --git a/Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt
deleted file mode 100644
index ebbe938105745..0000000000000
--- a/Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-* EETI eGalax Multiple Touch Controller
-
-Required properties:
-- compatible: must be "eeti,egalax_ts"
-- reg: i2c slave address
-- interrupts: touch controller interrupt
-- wakeup-gpios: the gpio pin to be used for waking up the controller
-  and also used as irq pin
-
-Example:
-
-	touchscreen@4 {
-		compatible = "eeti,egalax_ts";
-		reg = <0x04>;
-		interrupt-parent = <&gpio1>;
-		interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
-		wakeup-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
-	};
-- 
2.34.1