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Message-ID: <20240829092007.25850-2-antoniu.miclaus@analog.com>
Date: Thu, 29 Aug 2024 12:19:36 +0300
From: Antoniu Miclaus <antoniu.miclaus@...log.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>,
Michael Hennerich <michael.hennerich@...log.com>,
Antoniu Miclaus <antoniu.miclaus@...log.com>,
<linux-input@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH 2/2] dt-bindings: touchscreen: ad7877: add bindings
Add device tree bindings for the ad7877 driver.
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@...log.com>
---
.../input/touchscreen/adi,ad7877.yaml | 58 +++++++++++++++++++
1 file changed, 58 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/touchscreen/adi,ad7877.yaml
diff --git a/Documentation/devicetree/bindings/input/touchscreen/adi,ad7877.yaml b/Documentation/devicetree/bindings/input/touchscreen/adi,ad7877.yaml
new file mode 100644
index 000000000000..5fc5124c5999
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/adi,ad7877.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/adi,ad7877.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7877 Touch Screen Controller
+
+maintainers:
+ - Antoniu Miclaus <antoniu.miclaus@...log.com>
+
+description: |
+ Analog Devices Touch Screen Controller
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7877.pdf
+
+allOf:
+ - $ref: touchscreen.yaml#
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7877
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ spi-max-frequency:
+ description: AD7877 SPI bus clock frequency.
+ minimum: 10000
+ maximum: 20000000
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touchscreen@0 {
+ compatible = "adi,ad7877";
+ reg = <0>;
+ spi-max-frequency = <20000000>;
+ interrupts = <21 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-parent = <&gpio>;
+ };
+ };
+...
--
2.46.0
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