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Add devm_irq_domain_create_linear() as the devres-managed sibling of irq_domain_create_linear(): it builds the same linear-revmap irq_domain_info and hands it to devm_irq_domain_instantiate(), so the domain is removed when the owning device is unbound. The return convention matches irq_domain_create_linear() (NULL on failure). Signed-off-by: Zhipeng Wang Reviewed-by: Frank Li --- include/linux/irqdomain.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 73c25d40846c..b6b360cb6525 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -457,6 +457,36 @@ static inline struct irq_domain *irq_domain_create_linear(struct fwnode_handle * return IS_ERR(d) ? NULL : d; } +/** + * devm_irq_domain_create_linear - Allocate and register a linear revmap + * irq_domain tied to the device lifetime. + * @dev: Device that owns the domain. The domain is removed via devres + * when the device is unbound. + * @fwnode: pointer to interrupt controller's FW node. + * @size: Number of interrupts in the domain. + * @ops: map/unmap domain callbacks + * @host_data: Controller private data pointer + * + * Returns: Newly created irq_domain, or NULL on failure. + */ +static inline struct irq_domain *devm_irq_domain_create_linear(struct device *dev, + struct fwnode_handle *fwnode, + unsigned int size, + const struct irq_domain_ops *ops, + void *host_data) +{ + const struct irq_domain_info info = { + .fwnode = fwnode, + .size = size, + .hwirq_max = size, + .ops = ops, + .host_data = host_data, + }; + struct irq_domain *d = devm_irq_domain_instantiate(dev, &info); + + return IS_ERR(d) ? NULL : d; +} + static inline struct irq_domain *irq_domain_create_tree(struct fwnode_handle *fwnode, const struct irq_domain_ops *ops, void *host_data) -- 2.34.1