sensor: adxl345: fix: Overriding of ODR setting in DTS property

This patch fixes previous overriding of ODR setting through DTS (it
would always be 25-Hz, irrespective of what the DTS property said).

While doing so, create dt-binding enum to improve settings clarity.

Signed-off-by: Luis Ubieda <luisf@croxel.com>

Author: ubieda

drivers/sensor/adi/adxl345/adxl345.c

@@ -562,7 +562,6 @@ static int adxl345_init(const struct device *dev)
 		.fifo_config.fifo_mode = ADXL345_FIFO_STREAMED,				\
 		.fifo_config.fifo_trigger = ADXL345_INT2,			\
 		.fifo_config.fifo_samples = SAMPLE_NUM,					\
-		.odr = ADXL345_RATE_25HZ,						\
 
 #define ADXL345_CONFIG_SPI(inst)                                       \
 	{                                                              \

drivers/sensor/adi/adxl345/adxl345.h

@@ -14,6 +14,8 @@
 #include <zephyr/kernel.h>
 #include <zephyr/sys/util.h>
 
+#include <zephyr/dt-bindings/sensor/adxl345.h>
+
 #ifdef CONFIG_ADXL345_STREAM
 #include <zephyr/rtio/rtio.h>
 #endif /* CONFIG_ADXL345_STREAM */
@@ -117,12 +119,12 @@
 #define ADXL345_BUS_SPI 1
 
 enum adxl345_odr {
-	ADXL345_ODR_12HZ = 0x7,
-	ADXL345_ODR_25HZ,
-	ADXL345_ODR_50HZ,
-	ADXL345_ODR_100HZ,
-	ADXL345_ODR_200HZ,
-	ADXL345_ODR_400HZ
+	ADXL345_ODR_12HZ = ADXL345_DT_ODR_12_5,
+	ADXL345_ODR_25HZ = ADXL345_DT_ODR_25,
+	ADXL345_ODR_50HZ = ADXL345_DT_ODR_50,
+	ADXL345_ODR_100HZ = ADXL345_DT_ODR_100,
+	ADXL345_ODR_200HZ = ADXL345_DT_ODR_200,
+	ADXL345_ODR_400HZ = ADXL345_DT_ODR_400,
 };
 
 enum adxl345_fifo_trigger {

dts/bindings/sensor/adi,adxl345-common.yaml

@@ -1,27 +1,35 @@
 # Copyright (c) 2022 Analog Devices Inc.
 # SPDX-License-Identifier: Apache-2.0
 
+description: |
+  ADXL345 3-axis accelerometer
+  When setting the accelerometer DTS properties, make sure to include
+  adxl345.h and use the macros defined there.
+
+  Example:
+  #include <zephyr/dt-bindings/sensor/adxl345.h>
+
+  adxl345: adxl345@1d {
+    ...
+
+    odr = <ADXL345_DT_ODR_25>;
+  };
+
 include: sensor-device.yaml
 
 properties:
   odr:
     type: int
-    default: 0
+    default: 10
     description: |
           Accelerometer sampling frequency (ODR). Default is power on reset value.
-            0 # 12.5Hz
-            1 # 25Hz
-            2 # 50Hz
-            3 # 100Hz
-            4 # 200Hz
-            5 # 400Hz
     enum:
-      - 0
-      - 1
-      - 2
-      - 3
-      - 4
-      - 5
+      - 7 # ADXL345_DT_ODR_12_5
+      - 8 # ADXL345_DT_ODR_25
+      - 9 # ADXL345_DT_ODR_50
+      - 10 # ADXL345_DT_ODR_100
+      - 11 # ADXL345_DT_ODR_200
+      - 12 # ADXL345_DT_ODR_400
 
   int2-gpios:
     type: phandle-array

include/zephyr/dt-bindings/sensor/adxl345.h

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2025 Croxel Inc.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_ADI_ADX345_H_
+#define ZEPHYR_INCLUDE_DT_BINDINGS_ADI_ADX345_H_
+
+/**
+ * @defgroup ADXL345 ADI DT Options
+ * @ingroup sensor_interface
+ * @{
+ */
+
+/**
+ * @defgroup ADXL345_ODR Output Rate options
+ * @{
+ */
+#define ADXL345_DT_ODR_12_5		7
+#define ADXL345_DT_ODR_25		8
+#define ADXL345_DT_ODR_50		9
+#define ADXL345_DT_ODR_100		10
+#define ADXL345_DT_ODR_200		11
+#define ADXL345_DT_ODR_400		12
+/** @} */
+
+/** @} */
+
+#endif /* ZEPHYR_INCLUDE_DT_BINDINGS_ADI_ADX345_H_ */