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authorSuzuki K Poulose <suzuki.poulose@arm.com>2019-07-23 23:18:34 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-07-30 13:07:42 +0200
commit67843bbaf36eb087714f40e783ee78e99e9e4b86 (patch)
treecd2b2839bd3510dfd05d2185346a57988fb93c8a /drivers/usb/roles
parentcfba5de9b99f8bbb8b4ea11b3049784e78b8759b (diff)
drivers: Introduce device lookup variants by fwnode
Add a helper to match the firmware node handle of a device and provide wrappers for {bus/class/driver}_find_device() APIs to avoid proliferation of duplicate custom match functions. Cc: "David S. Miller" <davem@davemloft.net> Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: linux-usb@vger.kernel.org Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: Joe Perches <joe@perches.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Joerg Roedel <joro@8bytes.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Robin Murphy <robin.murphy@arm.com> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20190723221838.12024-4-suzuki.poulose@arm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/roles')
-rw-r--r--drivers/usb/roles/class.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c
index c8efe60e2465..0526efbc4922 100644
--- a/drivers/usb/roles/class.c
+++ b/drivers/usb/roles/class.c
@@ -85,11 +85,6 @@ enum usb_role usb_role_switch_get_role(struct usb_role_switch *sw)
}
EXPORT_SYMBOL_GPL(usb_role_switch_get_role);
-static int switch_fwnode_match(struct device *dev, const void *fwnode)
-{
- return dev_fwnode(dev) == fwnode;
-}
-
static void *usb_role_switch_match(struct device_connection *con, int ep,
void *data)
{
@@ -99,8 +94,7 @@ static void *usb_role_switch_match(struct device_connection *con, int ep,
if (con->id && !fwnode_property_present(con->fwnode, con->id))
return NULL;
- dev = class_find_device(role_class, NULL, con->fwnode,
- switch_fwnode_match);
+ dev = class_find_device_by_fwnode(role_class, con->fwnode);
} else {
dev = class_find_device_by_name(role_class, con->endpoint[ep]);
}