irqdomain: Drop irq_domain_add_*() functions

Most irq_domain_add_*() functions are unused now, so drop them. The
remaining ones are moved to the deprecated section and will be removed
during the merge window after the patches in various trees have been
merged.

Note: The Chinese docs are touched but unfinished. I cannot parse those.

[ tglx: Remove the leftover in irq-domain.rst and handle merge logistics ]

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250319092951.37667-41-jirislaby@kernel.org

1 files changed, 34 insertions, 68 deletions

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index f3c79f908a28..712c662de981 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -338,12 +338,6 @@ struct irq_domain *irq_domain_create_simple(struct fwnode_handle *fwnode,
 					    unsigned int first_irq,
 					    const struct irq_domain_ops *ops,
 					    void *host_data);
-struct irq_domain *irq_domain_add_legacy(struct device_node *of_node,
-					 unsigned int size,
-					 unsigned int first_irq,
-					 irq_hw_number_t first_hwirq,
-					 const struct irq_domain_ops *ops,
-					 void *host_data);
 struct irq_domain *irq_domain_create_legacy(struct fwnode_handle *fwnode,
 					    unsigned int size,
 					    unsigned int first_irq,
@@ -396,40 +390,6 @@ static inline struct irq_domain *irq_find_host(struct device_node *node)
 	return d;
 }
 
-static inline struct irq_domain *irq_domain_add_simple(struct device_node *of_node,
-						       unsigned int size,
-						       unsigned int first_irq,
-						       const struct irq_domain_ops *ops,
-						       void *host_data)
-{
-	return irq_domain_create_simple(of_fwnode_handle(of_node), size, first_irq, ops, host_data);
-}
-
-/**
- * irq_domain_add_linear() - Allocate and register a linear revmap irq_domain.
- * @of_node: pointer to interrupt controller's device tree node.
- * @size: Number of interrupts in the domain.
- * @ops: map/unmap domain callbacks
- * @host_data: Controller private data pointer
- */
-static inline struct irq_domain *irq_domain_add_linear(struct device_node *of_node,
-					 unsigned int size,
-					 const struct irq_domain_ops *ops,
-					 void *host_data)
-{
-	struct irq_domain_info info = {
-		.fwnode		= of_fwnode_handle(of_node),
-		.size		= size,
-		.hwirq_max	= size,
-		.ops		= ops,
-		.host_data	= host_data,
-	};
-	struct irq_domain *d;
-
-	d = irq_domain_instantiate(&info);
-	return IS_ERR(d) ? NULL : d;
-}
-
 #ifdef CONFIG_IRQ_DOMAIN_NOMAP
 static inline struct irq_domain *irq_domain_create_nomap(struct fwnode_handle *fwnode,
 					 unsigned int max_irq,
@@ -452,22 +412,6 @@ static inline struct irq_domain *irq_domain_create_nomap(struct fwnode_handle *f
 unsigned int irq_create_direct_mapping(struct irq_domain *domain);
 #endif
 
-static inline struct irq_domain *irq_domain_add_tree(struct device_node *of_node,
-					 const struct irq_domain_ops *ops,
-					 void *host_data)
-{
-	struct irq_domain_info info = {
-		.fwnode		= of_fwnode_handle(of_node),
-		.hwirq_max	= ~0U,
-		.ops		= ops,
-		.host_data	= host_data,
-	};
-	struct irq_domain *d;
-
-	d = irq_domain_instantiate(&info);
-	return IS_ERR(d) ? NULL : d;
-}
-
 static inline struct irq_domain *irq_domain_create_linear(struct fwnode_handle *fwnode,
 					 unsigned int size,
 					 const struct irq_domain_ops *ops,
@@ -631,18 +575,6 @@ static inline struct irq_domain *irq_domain_create_hierarchy(struct irq_domain *
 	return IS_ERR(d) ? NULL : d;
 }
 
-static inline struct irq_domain *irq_domain_add_hierarchy(struct irq_domain *parent,
-					    unsigned int flags,
-					    unsigned int size,
-					    struct device_node *node,
-					    const struct irq_domain_ops *ops,
-					    void *host_data)
-{
-	return irq_domain_create_hierarchy(parent, flags, size,
-					   of_fwnode_handle(node),
-					   ops, host_data);
-}
-
 int __irq_domain_alloc_irqs(struct irq_domain *domain, int irq_base,
 			    unsigned int nr_irqs, int node, void *arg,
 			    bool realloc,
@@ -789,6 +721,40 @@ static inline struct fwnode_handle *of_node_to_fwnode(struct device_node *node)
 	return node ? &node->fwnode : NULL;
 }
 
+static inline struct irq_domain *irq_domain_add_tree(struct device_node *of_node,
+					 const struct irq_domain_ops *ops,
+					 void *host_data)
+{
+	struct irq_domain_info info = {
+		.fwnode		= of_fwnode_handle(of_node),
+		.hwirq_max	= ~0U,
+		.ops		= ops,
+		.host_data	= host_data,
+	};
+	struct irq_domain *d;
+
+	d = irq_domain_instantiate(&info);
+	return IS_ERR(d) ? NULL : d;
+}
+
+static inline struct irq_domain *irq_domain_add_linear(struct device_node *of_node,
+					 unsigned int size,
+					 const struct irq_domain_ops *ops,
+					 void *host_data)
+{
+	struct irq_domain_info info = {
+		.fwnode		= of_fwnode_handle(of_node),
+		.size		= size,
+		.hwirq_max	= size,
+		.ops		= ops,
+		.host_data	= host_data,
+	};
+	struct irq_domain *d;
+
+	d = irq_domain_instantiate(&info);
+	return IS_ERR(d) ? NULL : d;
+}
+
 #else /* CONFIG_IRQ_DOMAIN */
 static inline void irq_dispose_mapping(unsigned int virq) { }
 static inline struct irq_domain *irq_find_matching_fwnode(