diff --git a/drivers/interrupt_controller/Kconfig.shared_irq b/drivers/interrupt_controller/Kconfig.shared_irq
index 9e542212821..ab7c060546b 100644
--- a/drivers/interrupt_controller/Kconfig.shared_irq
+++ b/drivers/interrupt_controller/Kconfig.shared_irq
@@ -9,15 +9,6 @@ menuconfig SHARED_IRQ
 	  Include shared interrupt support in system. Shared interrupt
 	  support is NOT required in most systems. If in doubt answer no.
 
-config SHARED_IRQ_NUM_CLIENTS
-	int "The number of clients per instance"
-	depends on SHARED_IRQ
-	default 5
-	help
-	  Configures the maximum number of clients allowed per shared
-	  instance of the shared interrupt driver. To conserve RAM set
-	  this value to the lowest practical value.
-
 config SHARED_IRQ_INIT_PRIORITY
 	int "Shared IRQ init priority"
 	depends on SHARED_IRQ
diff --git a/drivers/interrupt_controller/intc_shared_irq.c b/drivers/interrupt_controller/intc_shared_irq.c
index ae857a3d3f3..c210897e5d5 100644
--- a/drivers/interrupt_controller/intc_shared_irq.c
+++ b/drivers/interrupt_controller/intc_shared_irq.c
@@ -33,7 +33,7 @@ struct shared_irq_client {
 };
 
 struct shared_irq_runtime {
-	struct shared_irq_client client[CONFIG_SHARED_IRQ_NUM_CLIENTS];
+	struct shared_irq_client *const client;
 };
 
 /**
@@ -164,7 +164,10 @@ void shared_irq_config_func_##n(void)					\
 
 #define SHARED_IRQ_INIT(n)						\
 	SHARED_IRQ_CONFIG_FUNC(n)					\
-	struct shared_irq_runtime shared_irq_data_##n;			\
+	struct shared_irq_client clients_##n[INST_SUPPORTS_DEP_ORDS_CNT(n)]; \
+	struct shared_irq_runtime shared_irq_data_##n = {		\
+		.client = clients_##n					\
+	};								\
 									\
 	const struct shared_irq_config shared_irq_config_##n = {	\
 		.irq_num = DT_INST_IRQN(n),				\