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drivers: Introduce device lookup variants by fwnode

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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>
This commit is contained in:
Suzuki K Poulose
2019-07-23 23:18:34 +01:00
committed by Greg Kroah-Hartman
parent cfba5de9b9
commit 67843bbaf3
12 changed files with 57 additions and 63 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/usb/roles/class.c
View File

@@ -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]);
}

8
drivers/usb/typec/class.c
View File

@@ -205,11 +205,6 @@ static void typec_altmode_put_partner(struct altmode *altmode)
put_device(&adev->dev);
}
static int typec_port_fwnode_match(struct device *dev, const void *fwnode)
{
return dev_fwnode(dev) == fwnode;
}
static void *typec_port_match(struct device_connection *con, int ep, void *data)
{
struct device *dev;
@@ -219,8 +214,7 @@ static void *typec_port_match(struct device_connection *con, int ep, void *data)
* we need to return ERR_PTR(-PROBE_DEFER) when there is no device.
*/
if (con->fwnode)
return class_find_device(typec_class, NULL, con->fwnode,
typec_port_fwnode_match);
return class_find_device_by_fwnode(typec_class, con->fwnode);
dev = class_find_device_by_name(typec_class, con->endpoint[ep]);