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

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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: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124232325.618807601@linutronix.de
This commit is contained in:
Thomas Gleixner 2022-11-25 00:25:54 +01:00
parent a80c0aceea
commit 4443664f29
1 changed files with 4 additions and 0 deletions
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4
include/linux/irqdomain.h
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@ -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;