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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
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