i2c: Provide new device instantiation macro

Again removing the prio parameter.

Signed-off-by: Tomasz Bursztyka <[email protected]>

Author: tbursztyka

include/zephyr/drivers/i2c.h

@@ -672,6 +672,32 @@ static inline void i2c_xfer_stats(const struct device *dev, struct i2c_msg *msgs
 			&(Z_DEVICE_STATE_NAME(Z_DEVICE_DT_DEV_ID(node_id)).devstate), \
 			__VA_ARGS__)
 
+/**
+ * @brief Like DEVICE_INSTANCE() with I2C specifics.
+ *
+ * @details Defines a device which implements the I2C API. May
+ * generate a custom device_state container struct and init_fn
+ * wrapper when needed depending on I2C @kconfig{CONFIG_I2C_STATS}.
+ *
+ * @param node_id The devicetree node identifier.
+ * @param init_fn Name of the init function of the driver. Can be `NULL`.
+ * @param pm PM device resources reference (NULL if device does not use PM).
+ * @param data Pointer to the device's private data.
+ * @param config The address to the structure containing the
+ * configuration information for this instance of the driver.
+ * @param level The initialization level. See SYS_INIT() for
+ * details.
+ * @param api Provides an initial pointer to the API function struct
+ * used by the driver. Can be NULL.
+ */
+#define I2C_DEVICE_INSTANCE(node_id, init_fn, pm, data, config, level, api) \
+	Z_I2C_DEVICE_STATE_DEFINE(Z_DEVICE_DT_DEV_ID(node_id));             \
+	Z_I2C_INIT_FN(Z_DEVICE_DT_DEV_ID(node_id), init_fn)                 \
+	DEVICE_INSTANCE_EXTERNAL_STATE(node_id, init_fn, pm, data,          \
+				       config, level, api,                  \
+				       &(Z_DEVICE_STATE_NAME(               \
+						 Z_DEVICE_DT_DEV_ID(node_id)).devstate))
+
 #else /* CONFIG_I2C_STATS */
 
 static inline void i2c_xfer_stats(const struct device *dev, struct i2c_msg *msgs,
@@ -687,6 +713,9 @@ static inline void i2c_xfer_stats(const struct device *dev, struct i2c_msg *msgs
 	DEVICE_DT_DEFINE(node_id, init_fn, pm, data, config, level,	\
 			 prio, api, __VA_ARGS__)
 
+#define I2C_DEVICE_INSTANCE(node_id, init_fn, pm, data, config, level, api) \
+	DEVICE_INSTANCE(node_id, init_fn, pm, data, config, level, api)
+
 #endif /* CONFIG_I2C_STATS */
 
 /**
@@ -700,6 +729,16 @@ static inline void i2c_xfer_stats(const struct device *dev, struct i2c_msg *msgs
 #define I2C_DEVICE_DT_INST_DEFINE(inst, ...)		\
 	I2C_DEVICE_DT_DEFINE(DT_DRV_INST(inst), __VA_ARGS__)
 
+/**
+ * @brief Like I2C_DEVICE_INSTANCE() for an instance of a DT_DRV_COMPAT compatible
+ *
+ * @param inst instance number. This is replaced by
+ * <tt>DT_DRV_COMPAT(inst)</tt> in the call to I2C_DEVICE_INSTANCE().
+ * @param ... other parameters as expected by I2C_DEVICE_INSTANCE().
+ */
+#define I2C_DEVICE_INSTANCE_FROM_DT_INST(inst, ...)		\
+	I2C_DEVICE_INSTANCE(DT_DRV_INST(inst), __VA_ARGS__)
+
 
 /**
  * @brief Configure operation of a host controller.