linux-kernel - [PATCH RFC v2 1/5] dt-bindings: input: melfas-mip4: convert to dtschema

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Message-Id: <20250613-mip4-touchkey-v2-1-9bbbe14c016d@disroot.org>
Date: Fri, 13 Jun 2025 01:11:33 +0530
From: Kaustabh Chakraborty <kauschluss@...root.org>
To: Sangwon Jee <jeesw@...fas.com>, 
 Dmitry Torokhov <dmitry.torokhov@...il.com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Henrik Rydberg <rydberg@...math.org>
Cc: linux-input@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Kaustabh Chakraborty <kauschluss@...root.org>
Subject: [PATCH RFC v2 1/5] dt-bindings: input: melfas-mip4: convert to
 dtschema

Port the documentation file melfas_mip4.txt over to melfas,mip4_ts.yaml.

Signed-off-by: Kaustabh Chakraborty <kauschluss@...root.org>
---
 .../bindings/input/touchscreen/melfas,mip4_ts.yaml | 55 ++++++++++++++++++++++
 .../bindings/input/touchscreen/melfas_mip4.txt     | 20 --------
 2 files changed, 55 insertions(+), 20 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/melfas,mip4_ts.yaml b/Documentation/devicetree/bindings/input/touchscreen/melfas,mip4_ts.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..5532d46f85a235127e2b3513846259aa7372bda5
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/melfas,mip4_ts.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/melfas,mip4_ts.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MELFAS MIP4 touchscreen controller
+
+maintainers:
+  - Sangwon Jee <jeesw@...fas.com>
+
+allOf:
+  - $ref: touchscreen.yaml#
+
+properties:
+  $nodename:
+    pattern: "^touchscreen(@.*)?$"
+
+  compatible:
+    const: melfas,mip4_ts
+
+  reg:
+    enum: [ 0x48, 0x34 ]
+    description: I2C slave address of the chip
+
+  interrupts:
+    maxItems: 1
+
+  ce-gpios:
+    description: GPIO connected to the CE (chip enable) pin of the chip
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      touchscreen@48 {
+        compatible = "melfas,mip4_ts";
+        reg = <0x48>;
+        interrupt-parent = <&gpio>;
+        interrupts = <0 IRQ_TYPE_EDGE_FALLING>;
+        ce-gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
+      };
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt b/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt
deleted file mode 100644
index b2ab5498e51900e887fab4d9b5239cccccec2ea9..0000000000000000000000000000000000000000
--- a/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-* MELFAS MIP4 Touchscreen
-
-Required properties:
-- compatible: must be "melfas,mip4_ts"
-- reg: I2C slave address of the chip (0x48 or 0x34)
-- interrupts: interrupt to which the chip is connected
-
-Optional properties:
-- ce-gpios: GPIO connected to the CE (chip enable) pin of the chip
-
-Example:
-	i2c@...00000 {
-		touchscreen: melfas_mip4@48 {
-			compatible = "melfas,mip4_ts";
-			reg = <0x48>;
-			interrupt-parent = <&gpio>;
-			interrupts = <0 IRQ_TYPE_EDGE_FALLING>;
-			ce-gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
-		};
-	};

-- 
2.49.0