[irqchip: irq/irqchip-next] resource: Add irqresource_disabled()

[irqchip-bot for John Garry]

The following commit has been merged into the irq/irqchip-next branch of irqchip:

Commit-ID:     9806731db684a475ade1e95d166089b9edbd9da3
Gitweb:        https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/9806731db684a475ade1e95d166089b9edbd9da3
Author:        John Garry <john.garry@xxxxxxxxxx>
AuthorDate:    Wed, 02 Dec 2020 18:36:54 +08:00
Committer:     Marc Zyngier <maz@xxxxxxxxxx>
CommitterDate: Fri, 11 Dec 2020 14:47:50 

resource: Add irqresource_disabled()

Add a common function to set the fields for a irq resource to disabled,
which mimics what is done in acpi_dev_irqresource_disabled(), with a view
to replace that function.

Signed-off-by: John Garry <john.garry@xxxxxxxxxx>
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Link: https://lore.kernel.org/r/1606905417-183214-3-git-send-email-john.garry@xxxxxxxxxx
---
 include/linux/ioport.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 5135d4b..f9bf374 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -307,6 +307,13 @@ struct resource *devm_request_free_mem_region(struct device *dev,
 struct resource *request_free_mem_region(struct resource *base,
 		unsigned long size, const char *name);
 
+static inline void irqresource_disabled(struct resource *res, u32 irq)
+{
+	res->start = irq;
+	res->end = irq;
+	res->flags = IORESOURCE_IRQ | IORESOURCE_DISABLED | IORESOURCE_UNSET;
+}
+
 #ifdef CONFIG_IO_STRICT_DEVMEM
 void revoke_devmem(struct resource *res);
 #else