include: zephyr: dt-bindings: Add MAX32660 DMA binding

This commit adds binding file for DMA slots

Signed-off-by: Yasin Ustuner <[email protected]>

Author: yasin-ADI

dts/arm/adi/max32/max32660.dtsi

@@ -6,6 +6,7 @@
 
 #include <arm/armv7-m.dtsi>
 #include <adi/max32/max32xxx.dtsi>
+#include <zephyr/dt-bindings/dma/max32660_dma.h>
 
 &clk_ipo {
 	clock-frequency = <DT_FREQ_M(96)>;

include/zephyr/dt-bindings/dma/max32660_dma.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2025 Analog Devices, Inc.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_DMA_MAX32660_DMA_H_
+#define ZEPHYR_INCLUDE_DT_BINDINGS_DMA_MAX32660_DMA_H_
+
+#define MAX32_DMA_SLOT_MEMTOMEM  0x00U
+#define MAX32_DMA_SLOT_SPI0_RX   0x01U
+#define MAX32_DMA_SLOT_SPI1_RX   0x02U
+#define MAX32_DMA_SLOT_UART0_RX  0x04U
+#define MAX32_DMA_SLOT_UART1_RX  0x05U
+#define MAX32_DMA_SLOT_I2C0_RX   0x07U
+#define MAX32_DMA_SLOT_I2C1_RX   0x08U
+#define MAX32_DMA_SLOT_SPI0_TX   0x21U
+#define MAX32_DMA_SLOT_SPI1_TX   0x22U
+#define MAX32_DMA_SLOT_UART0_TX  0x24U
+#define MAX32_DMA_SLOT_UART1_TX  0x25U
+#define MAX32_DMA_SLOT_I2C0_TX   0x27U
+#define MAX32_DMA_SLOT_I2C1_TX   0x28U
+
+#endif /* ZEPHYR_INCLUDE_DT_BINDINGS_DMA_MAX32660_DMA_H_ */