diff options
| author | Lorenzo Pieralisi <lpieralisi@kernel.org> | 2026-01-15 10:50:47 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-01-27 15:31:41 +0100 |
| commit | 0323897a88afd4ddb3d44cd6b1b33ccd6a4b76cb (patch) | |
| tree | e63b6f9e4f618a71e891634216a07d9de0ebcbab /kernel | |
| parent | 8d9ad85dbf9bfe7f12e548e8f749b4c058d60bd1 (diff) | |
irqdomain: Add parent field to struct irqchip_fwid
The GICv5 driver IRQ domain hierarchy requires adding a parent field to
struct irqchip_fwid so that core code can reference a fwnode_handle parent
for a given fwnode.
Add a parent field to struct irqchip_fwid and update the related kernel API
functions to initialize and handle it.
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Acked-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260115-gicv5-host-acpi-v3-1-c13a9a150388@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/irq/irqdomain.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 2652c4cfd877..baf77cd167c4 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -33,6 +33,7 @@ static void irq_domain_free_one_irq(struct irq_domain *domain, unsigned int virq struct irqchip_fwid { struct fwnode_handle fwnode; + struct fwnode_handle *parent; unsigned int type; char *name; phys_addr_t *pa; @@ -53,8 +54,16 @@ static const char *irqchip_fwnode_get_name(const struct fwnode_handle *fwnode) return fwid->name; } +static struct fwnode_handle *irqchip_fwnode_get_parent(const struct fwnode_handle *fwnode) +{ + struct irqchip_fwid *fwid = container_of(fwnode, struct irqchip_fwid, fwnode); + + return fwid->parent; +} + const struct fwnode_operations irqchip_fwnode_ops = { .get_name = irqchip_fwnode_get_name, + .get_parent = irqchip_fwnode_get_parent, }; EXPORT_SYMBOL_GPL(irqchip_fwnode_ops); @@ -65,6 +74,7 @@ EXPORT_SYMBOL_GPL(irqchip_fwnode_ops); * @id: Optional user provided id if name != NULL * @name: Optional user provided domain name * @pa: Optional user-provided physical address + * @parent: Optional parent fwnode_handle * * Allocate a struct irqchip_fwid, and return a pointer to the embedded * fwnode_handle (or NULL on failure). @@ -76,7 +86,8 @@ EXPORT_SYMBOL_GPL(irqchip_fwnode_ops); */ struct fwnode_handle *__irq_domain_alloc_fwnode(unsigned int type, int id, const char *name, - phys_addr_t *pa) + phys_addr_t *pa, + struct fwnode_handle *parent) { struct irqchip_fwid *fwid; char *n; @@ -104,6 +115,7 @@ struct fwnode_handle *__irq_domain_alloc_fwnode(unsigned int type, int id, fwid->type = type; fwid->name = n; fwid->pa = pa; + fwid->parent = parent; fwnode_init(&fwid->fwnode, &irqchip_fwnode_ops); return &fwid->fwnode; } |