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[v5,2/5] resource: Add irqresource_disabled()

Message ID 1606905417-183214-3-git-send-email-john.garry@huawei.com
State New
Headers show
Series Support managed interrupts for platform devices | expand

Commit Message

John Garry Dec. 2, 2020, 10:36 a.m. UTC 
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@huawei.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/linux/ioport.h | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 5135d4b86cd6..f9bf374f9633 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