linux-kernel - [PATCH 1/2] dt-bindings: iio: Add TI OPT4048 color sensor bindings

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Message-ID: <20241130174212.3298371-1-paulk@sys-base.io>
Date: Sat, 30 Nov 2024 18:42:11 +0100
From: Paul Kocialkowski <paulk@...-base.io>
To: linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Jonathan Cameron <jic23@...nel.org>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Paul Kocialkowski <paulk@...-base.io>
Subject: [PATCH 1/2] dt-bindings: iio: Add TI OPT4048 color sensor bindings

The Texas Instruments OPT4048 is a XYZ tristimulus color sensor.

It requires a VDD power supply and can optionally support an interrupt.

Signed-off-by: Paul Kocialkowski <paulk@...-base.io>
---
 .../bindings/iio/light/ti,opt4048.yaml        | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/light/ti,opt4048.yaml

diff --git a/Documentation/devicetree/bindings/iio/light/ti,opt4048.yaml b/Documentation/devicetree/bindings/iio/light/ti,opt4048.yaml
new file mode 100644
index 000000000000..e2b7472ab588
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/ti,opt4048.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/ti,opt4048.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments OPT4048 XYZ tristimulus color sensor
+
+maintainers:
+  - Paul Kocialkowski <paulk@...-base.io>
+
+description: |
+  The device supports both interrupt-driven and interrupt-less operation,
+  depending on whether an interrupt property is present in the device-tree.
+
+properties:
+  compatible:
+    const: ti,opt4048
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+    description: |
+      The interrupt is detected on a falling edge, with a low level asserted
+      for 1 us. It might be missed because of hardware interrupt debouncing
+      mechanisms due to this short time.
+
+  vdd-supply: true
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - vdd-supply
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        light-sensor@44 {
+          compatible = "ti,opt4048";
+            reg = <0x44>;
+            interrupt-parent = <&pio>;
+            interrupts = <0 8 IRQ_TYPE_EDGE_FALLING>;
+            vdd-supply = <&reg_vcc_io>;
+        };
+    };
+...
-- 
2.47.0