linux-kernel - [PATCH v3] dt-bindings: input: Convert MELFAS MIP4 Touchscreen to DT schema

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Message-ID: <20251001183809.83472-1-ariel.dalessandro@collabora.com>
Date: Wed,  1 Oct 2025 15:38:09 -0300
From: Ariel D'Alessandro <ariel.dalessandro@...labora.com>
To: angelogioacchino.delregno@...labora.com,
	ariel.dalessandro@...labora.com,
	conor+dt@...nel.org,
	dmitry.torokhov@...il.com,
	krzk+dt@...nel.org,
	robh@...nel.org
Cc: devicetree@...r.kernel.org,
	kernel@...labora.com,
	linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v3] dt-bindings: input: Convert MELFAS MIP4 Touchscreen to DT schema

Convert the existing text-based DT bindings for MELFAS MIP4 Touchscreen
controller to a DT schema.

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@...labora.com>
Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 .../input/touchscreen/melfas,mip4_ts.yaml     | 56 +++++++++++++++++++
 .../input/touchscreen/melfas_mip4.txt         | 20 -------
 2 files changed, 56 insertions(+), 20 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/input/touchscreen/melfas,mip4_ts.yaml
 delete mode 100644 Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt

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 0000000000000..314be65c56caa
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/melfas,mip4_ts.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0 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
+
+maintainers:
+  - Ariel D'Alessandro <ariel.dalessandro@...labora.com>
+
+properties:
+  compatible:
+    const: melfas,mip4_ts
+
+  reg:
+    description: I2C address of the chip (0x48 or 0x34)
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  ce-gpios:
+    description:
+      GPIO connected to the CE (chip enable) pin of the chip (active high)
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        touchscreen@34 {
+            compatible = "melfas,mip4_ts";
+            reg = <0x34>;
+
+            interrupts-extended = <&tlmm 13 IRQ_TYPE_EDGE_FALLING>;
+            ce-gpios = <&tlmm 12 GPIO_ACTIVE_HIGH>;
+
+            pinctrl-0 = <&touchscreen_default>;
+            pinctrl-names = "default";
+        };
+    };
+
+...
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 b2ab5498e5190..0000000000000
--- 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>;
-		};
-	};
-- 
2.51.0