drivers: i2c_rtio: MCUX LPflexcomm determine by inst

Determine if lpflexcomm wrapped lpi2c by instance and connect
irq differently dependending on that to support platforms with
both flexcomm wrapped and unwrapped lpi2c's.

Applying c1286a8d8d to RTIO version.

Authored-by: Declan Snyder <declan.snyder@nxp.com>
Signed-off-by: Luis Ubieda <luisf@croxel.com>

drivers/i2c/i2c_mcux_lpi2c_rtio.c

@@ -43,9 +43,6 @@ LOG_MODULE_REGISTER(mcux_lpi2c);
 
 struct mcux_lpi2c_config {
 	DEVICE_MMIO_NAMED_ROM(reg_base);
-#ifdef CONFIG_NXP_LP_FLEXCOMM
-	const struct device *parent_dev;
-#endif
 	const struct device *clock_dev;
 	clock_control_subsys_t clock_subsys;
 	void (*irq_config_func)(const struct device *dev);
@@ -335,15 +332,7 @@ static int mcux_lpi2c_init(const struct device *dev)
 		return error;
 	}
 
-#if CONFIG_NXP_LP_FLEXCOMM
-	/* When using LP Flexcomm driver, register the interrupt handler
-	 * so we receive notification from the LP Flexcomm interrupt handler.
-	 */
-	nxp_lp_flexcomm_setirqhandler(config->parent_dev, dev,
-				      LP_FLEXCOMM_PERIPH_LPI2C, mcux_lpi2c_isr);
-#else
 	config->irq_config_func(dev);
-#endif
 
 	i2c_rtio_init(data->ctx, dev);
 
@@ -377,21 +366,31 @@ static DEVICE_API(i2c, mcux_lpi2c_driver_api) = {
 	IF_ENABLED(DT_INST_IRQ_HAS_IDX(n, 0),				\
 		(I2C_MCUX_LPI2C_MODULE_IRQ_CONNECT(n)))
 
-#ifdef CONFIG_NXP_LP_FLEXCOMM
-#define PARENT_DEV(n)							\
-	.parent_dev = DEVICE_DT_GET(DT_INST_PARENT(n)),
-#else
-#define PARENT_DEV(n)
-#endif /* CONFIG_NXP_LP_FLEXCOMM */
+/* When using LP Flexcomm driver, register the interrupt handler
+ * so we receive notification from the LP Flexcomm interrupt handler.
+ */
+#define I2C_MCUX_LPI2C_LPFLEXCOMM_IRQ_FUNC(n)				\
+	nxp_lp_flexcomm_setirqhandler(DEVICE_DT_GET(DT_INST_PARENT(n)), \
+					DEVICE_DT_INST_GET(n),		\
+					LP_FLEXCOMM_PERIPH_LPI2C,	\
+					mcux_lpi2c_isr)
+
+#define I2C_MCUX_LPI2C_IRQ_SETUP_FUNC(n)				\
+	COND_CODE_1(DT_NODE_HAS_COMPAT(DT_INST_PARENT(n),		\
+					nxp_lp_flexcomm),		\
+		    (I2C_MCUX_LPI2C_LPFLEXCOMM_IRQ_FUNC(n)),		\
+		    (I2C_MCUX_LPI2C_MODULE_IRQ(n)))
 
 #define I2C_MCUX_LPI2C_INIT(n)						\
 	PINCTRL_DT_INST_DEFINE(n);					\
 									\
-	static void mcux_lpi2c_config_func_##n(const struct device *dev); \
+	static void mcux_lpi2c_config_func_##n(const struct device *dev)\
+	{								\
+		I2C_MCUX_LPI2C_IRQ_SETUP_FUNC(n);			\
+	}								\
 									\
 	static const struct mcux_lpi2c_config mcux_lpi2c_config_##n = {	\
 		DEVICE_MMIO_NAMED_ROM_INIT(reg_base, DT_DRV_INST(n)),	\
-		PARENT_DEV(n)						\
 		.clock_dev = DEVICE_DT_GET(DT_INST_CLOCKS_CTLR(n)),	\
 		.clock_subsys =						\
 			(clock_control_subsys_t)DT_INST_CLOCKS_CELL(n, name),\
@@ -417,11 +416,6 @@ static DEVICE_API(i2c, mcux_lpi2c_driver_api) = {
 				&mcux_lpi2c_data_##n,			\
 				&mcux_lpi2c_config_##n, POST_KERNEL,	\
 				CONFIG_I2C_INIT_PRIORITY,		\
-				&mcux_lpi2c_driver_api);		\
-									\
-	static void mcux_lpi2c_config_func_##n(const struct device *dev)\
-	{								\
-		I2C_MCUX_LPI2C_MODULE_IRQ(n);				\
-	}
+				&mcux_lpi2c_driver_api);
 
 DT_INST_FOREACH_STATUS_OKAY(I2C_MCUX_LPI2C_INIT)