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Message-Id: <20250403-hm1246-v1-1-30990d71bc42@emfend.at>
Date: Thu, 03 Apr 2025 10:07:35 +0200
From: Matthias Fend <matthias.fend@...end.at>
To: Mauro Carvalho Chehab <mchehab@...nel.org>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: linux-media@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Matthias Fend <matthias.fend@...end.at>,
bsp-development.geo@...ca-geosystems.com
Subject: [PATCH 1/2] media: dt-bindings: i2c: add Himax HM1246 image sensor
Add YAML device tree binding for Himax HM1246 image sensor.
Signed-off-by: Matthias Fend <matthias.fend@...end.at>
---
.../bindings/media/i2c/himax,hm1246.yaml | 111 +++++++++++++++++++++
1 file changed, 111 insertions(+)
diff --git a/Documentation/devicetree/bindings/media/i2c/himax,hm1246.yaml b/Documentation/devicetree/bindings/media/i2c/himax,hm1246.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..8a67de7e3ffcaa9f1acfe443b1e36fffb79dbacf
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/himax,hm1246.yaml
@@ -0,0 +1,111 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2025 Matthias Fend <matthias.fend@...end.at>
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/himax,hm1246.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Himax HM1246-AWD 1/3.7-Inch megapixel SoC image sensor
+
+maintainers:
+ - Matthias Fend <matthias.fend@...end.at>
+
+description:
+ The Himax HM1246-AWD is a 1/3.7-Inch CMOS image sensor SoC with an active
+ array size of 1296 x 976. It is programmable through an I2C interface and
+ connected via parallel bus.
+
+allOf:
+ - $ref: /schemas/media/video-interface-devices.yaml#
+
+properties:
+ compatible:
+ const: himax,hm1246
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ description: Input reference clock (6 - 27 MHz)
+ maxItems: 1
+
+ reset-gpios:
+ description: Active low XSHUTDOWN pin
+ maxItems: 1
+
+ avdd-supply:
+ description: Power for analog circuit (3.0 - 3.6 V)
+
+ iovdd-supply:
+ description: Power for I/O circuit (1.7 - 3.6 V)
+
+ dvdd-supply:
+ description: Power for digital circuit (1.5 / 1.8 V)
+
+ port:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ additionalProperties: false
+ description: Parallel video output port
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ bus-type:
+ const: 5
+
+ required:
+ - bus-type
+
+ required:
+ - endpoint
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - avdd-supply
+ - iovdd-supply
+ - dvdd-supply
+ - port
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/media/video-interfaces.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@24 {
+ compatible = "himax,hm1246";
+ reg = <0x24>;
+
+ clocks = <&hm1246_clk>;
+
+ reset-gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
+
+ avdd-supply = <&hm1246_avdd>;
+ iovdd-supply = <&hm1246_iovdd>;
+ dvdd-supply = <&hm1246_dvdd>;
+
+ orientation = <2>;
+ rotation = <0>;
+
+ port {
+ endpoint {
+ remote-endpoint = <&isp_par_in>;
+ bus-type = <MEDIA_BUS_TYPE_PARALLEL>;
+ bus-width = <10>;
+ hsync-active = <1>; /* active high */
+ vsync-active = <1>; /* active high */
+ pclk-sample = <1>; /* sample on rising edge */
+ };
+ };
+ };
+ };
--
2.34.1
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