Commit 4443664f authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

genirq/irqdomain: Add irq_domain:: Dev for per device MSI domains 



Per device domains require the device pointer of the device which
instantiated the domain for some purposes. Add the pointer to struct
irq_domain. It will be used in the next step which provides the
infrastructure to create per device MSI domains.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Acked-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124232325.618807601@linutronix.de
parent a80c0ace

include/linux/irqdomain.h

+4 −0
Original line number Diff line number Diff line
@@ -132,6 +132,9 @@ struct irq_domain_chip_generic; 
 * @gc:		Pointer to a list of generic chips. There is a helper function for

 *		setting up one or more generic chips for interrupt controllers

 *		drivers using the generic chip library which uses this pointer.

 * @dev:	Pointer to the device which instantiated the irqdomain

 *		With per device irq domains this is not necessarily the same

 *		as @pm_dev.

 * @pm_dev:	Pointer to a device that can be utilized for power management

 *		purposes related to the irq domain.

 * @parent:	Pointer to parent irq_domain to support hierarchy irq_domains
@@ -155,6 +158,7 @@ struct irq_domain { 
	struct fwnode_handle		*fwnode;

	enum irq_domain_bus_token	bus_token;

	struct irq_domain_chip_generic	*gc;

	struct device			*dev;

	struct device			*pm_dev;

#ifdef	CONFIG_IRQ_DOMAIN_HIERARCHY

	struct irq_domain		*parent;