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authorHans de Goede <hdegoede@redhat.com>2019-10-05 23:04:47 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-10-07 12:52:44 +0200
commitf1da567f1dc1b55d178b8f2d0cfe8353858aac19 (patch)
tree755f6e8ae6dc1264b6f3ef679a19fb8fa704d23b /include
parente2fbe600433c5f4876ec9f0d9e91d8b0b37a6e87 (diff)
driver core: platform: Add platform_get_irq_byname_optional()
Some drivers (e.g dwc3) first try to get an IRQ byname and then fall back to the one at index 0. In this case we do not want the error(s) printed by platform_get_irq_byname(). This commit adds a new platform_get_irq_byname_optional(), which does not print errors, for this. While at it also improve the kdoc text for platform_get_irq_byname() a bit. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205037 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/20191005210449.3926-2-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/platform_device.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 1b5cec067533..f2688404d1cd 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -64,6 +64,8 @@ extern struct resource *platform_get_resource_byname(struct platform_device *,
unsigned int,
const char *);
extern int platform_get_irq_byname(struct platform_device *, const char *);
+extern int platform_get_irq_byname_optional(struct platform_device *dev,
+ const char *name);
extern int platform_add_devices(struct platform_device **, int);
struct platform_device_info {