dts: bindings: addition of RaspberryPi CSI 15 pins camera connector

Add RaspberryPi CSI 15 pins camera connector description.

Signed-off-by: Josuah Demangeon <me@josuah.net>

Author: josuah

dts/bindings/gpio/raspberrypi,csi-15pins-connector.yaml

@@ -0,0 +1,26 @@
+# Copyright 2025 tinyVision.ai Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+description: |
+  GPIO pins exposed on the Raspberry Pi CSI 15pins Camera connector
+  Connector layout:
+
+    1   GND
+    2   CSI_D0_N
+    3   CSI_D0_P
+    4   GND
+    5   CSI_D1_N
+    6   CSI_D1_P
+    7   GND
+    8   CSI_CK_N
+    9   CSI_CK_P
+    10  GND
+    11  IO0
+    12  IO1
+    13  I2C_SCL
+    14  I2C_SDA
+    15  VCC (3v3)
+
+compatible: "raspberrypi,csi-15pins-connector"
+
+include: [gpio-nexus.yaml, base.yaml]

include/zephyr/dt-bindings/gpio/raspberrypi-csi-15pins-connector.h

@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2025 tinyVision.ai Inc.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#ifndef INCLUDE_ZEPHYR_DT_BINDINGS_GPIO_RASPBERRYPI_CSI_15PINS_CONNECTOR_H_
+#define INCLUDE_ZEPHYR_DT_BINDINGS_GPIO_RASPBERRYPI_CSI_15PINS_CONNECTOR_H_
+
+/**
+ * @name CSI 15 pins camera connector pinout
+ * @{
+ */
+#define CSI_15PINS IO0          11	/**< GPIO0 */
+#define CSI_15PINS IO1          12	/**< GPIO1 */
+#define CSI_15PINS I2C_SCL      13	/**< I2C clock pin */
+#define CSI_15PINS I2C_SDA      14	/**< I2C data pin */
+
+/** @} */
+
+#endif /* INCLUDE_ZEPHYR_DT_BINDINGS_GPIO_RASPBERRYPI_CSI_15PINS_CONNECTOR_H_ */