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From: Oleksij Rempel <o.rempel@pengutronix.de>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>,
	Rob Herring <robh@kernel.org>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>,
	kernel@pengutronix.de, linux-kernel@vger.kernel.org,
	linux-input@vger.kernel.org, David Jander <david@protonic.nl>,
	devicetree@vger.kernel.org
Subject: [PATCH v6 1/4] dt-bindings: touchscreen: Convert resistive-adc-touch binding to json schema
Date: Tue, 25 May 2021 07:46:31 +0200	[thread overview]
Message-ID: <20210525054634.9134-2-o.rempel@pengutronix.de> (raw)
In-Reply-To: <20210525054634.9134-1-o.rempel@pengutronix.de>

Convert the resistive-adc-touch binding to DT schema format using json-schema.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 .../input/touchscreen/resistive-adc-touch.txt | 33 ---------
 .../touchscreen/resistive-adc-touch.yaml      | 70 +++++++++++++++++++
 2 files changed, 70 insertions(+), 33 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.txt
 create mode 100644 Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.yaml

diff --git a/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.txt b/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.txt
deleted file mode 100644
index af5223bb5bdd..000000000000
--- a/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-Generic resistive touchscreen ADC
-
-Required properties:
-
- - compatible: must be "resistive-adc-touch"
-The device must be connected to an ADC device that provides channels for
-position measurement and optional pressure.
-Refer to
-https://github.com/devicetree-org/dt-schema/blob/master/schemas/iio/iio-consumer.yaml
-for details
-
- - iio-channels: must have at least two channels connected to an ADC device.
-These should correspond to the channels exposed by the ADC device and should
-have the right index as the ADC device registers them. These channels
-represent the relative position on the "x" and "y" axes.
- - iio-channel-names: must have all the channels' names. Mandatory channels
-are "x" and "y".
-
-Optional properties:
- - iio-channels: The third channel named "pressure" is optional and can be
-used if the ADC device also measures pressure besides position.
-If this channel is missing, pressure will be ignored and the touchscreen
-will only report position.
- - iio-channel-names: optional channel named "pressure".
-
-Example:
-
-	resistive_touch: resistive_touch {
-		compatible = "resistive-adc-touch";
-		touchscreen-min-pressure = <50000>;
-		io-channels = <&adc 24>, <&adc 25>, <&adc 26>;
-		io-channel-names = "x", "y", "pressure";
-	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.yaml b/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.yaml
new file mode 100644
index 000000000000..38b4cbee9429
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/resistive-adc-touch.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic resistive touchscreen ADC
+
+maintainers:
+  - Oleksij Rempel <o.rempel@pengutronix.de>
+
+description: |
+  Generic ADC based resistive touchscreen controller
+  The device must be connected to an ADC device that provides channels for
+  position measurement and optional pressure.
+
+allOf:
+  - $ref: touchscreen.yaml#
+
+properties:
+  compatible:
+    const: resistive-adc-touch
+
+  io-channels:
+    minItems: 2
+    items:
+      - description: x
+      - description: y
+      - description: pressure (optional)
+
+  io-channel-names:
+    oneOf:
+      - items:
+          - enum: [x, y]
+          - enum: [x, y]
+      - items:
+          - enum: [x, y, pressure]
+          - enum: [x, y, pressure]
+          - enum: [x, y, pressure]
+
+  touchscreen-size-x: true
+  touchscreen-size-y: true
+  touchscreen-fuzz-x: true
+  touchscreen-fuzz-y: true
+  touchscreen-inverted-x: true
+  touchscreen-inverted-y: true
+  touchscreen-swapped-x-y: true
+  touchscreen-min-pressure: true
+
+additionalProperties: false
+
+required:
+  - compatible
+  - io-channels
+  - io-channel-names
+
+examples:
+  - |
+    touchscreen {
+      compatible = "resistive-adc-touch";
+      io-channels = <&adc 24>, <&adc 25>;
+      io-channel-names = "y", "x";
+    };
+  - |
+    touchscreen {
+      compatible = "resistive-adc-touch";
+      touchscreen-min-pressure = <50000>;
+      io-channels = <&adc 24>, <&adc 25>, <&adc 26>;
+      io-channel-names = "y", "pressure", "x";
+    };
-- 
2.29.2


  reply	other threads:[~2021-05-25  5:46 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-25  5:46 [PATCH v6 0/4] add z1 and z2 channels support for resistive-adc-touch driver Oleksij Rempel
2021-05-25  5:46 ` Oleksij Rempel [this message]
2021-05-25  5:46 ` [PATCH v6 2/4] dt-bindings: touchscreen: add touchscreen-x/y-plate-ohms property Oleksij Rempel
2021-05-25  5:46 ` [PATCH v6 3/4] dt-bindings: touchscreen: resistive-adc-touch: add support for z1 and z2 channels Oleksij Rempel
2021-05-25  5:46 ` [PATCH v6 4/4] Input: " Oleksij Rempel
2021-05-25 20:06 ` [PATCH v6 0/4] add z1 and z2 channels support for resistive-adc-touch driver Dmitry Torokhov
2021-06-02 11:15 ` Eugen.Hristev
2021-06-07  9:22   ` Oleksij Rempel

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