From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Hans de Goede <hdegoede@redhat.com>,
Darren Hart <dvhart@infradead.org>,
Andy Shevchenko <andy@infradead.org>,
linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
platform-driver-x86@vger.kernel.org
Subject: [PATCH v3 07/13] device connection: Find connections also by checking the references
Date: Fri, 12 Apr 2019 16:41:16 +0300 [thread overview]
Message-ID: <20190412134122.82903-8-heikki.krogerus@linux.intel.com> (raw)
In-Reply-To: <20190412134122.82903-1-heikki.krogerus@linux.intel.com>
We can also use this API to find named references that the
device nodes have by using fwnode_property_get_reference_args()
function.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
---
drivers/base/devcon.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/drivers/base/devcon.c b/drivers/base/devcon.c
index 04db9ae235e4..4cdf95532b63 100644
--- a/drivers/base/devcon.c
+++ b/drivers/base/devcon.c
@@ -38,6 +38,30 @@ fwnode_graph_devcon_match(struct fwnode_handle *fwnode, const char *con_id,
return NULL;
}
+static void *
+fwnode_devcon_match(struct fwnode_handle *fwnode, const char *con_id,
+ void *data, devcon_match_fn_t match)
+{
+ struct device_connection con = { };
+ struct fwnode_reference_args args;
+ void *ret;
+ int i;
+
+ for (i = 0; ; i++) {
+ if (fwnode_property_get_reference_args(fwnode, con_id, NULL, 0,
+ i, &args))
+ break;
+
+ con.fwnode = args.fwnode;
+ ret = match(&con, -1, data);
+ fwnode_handle_put(args.fwnode);
+ if (ret)
+ return ret;
+ }
+
+ return NULL;
+}
+
/**
* device_connection_find_match - Find physical connection to a device
* @dev: Device with the connection
@@ -65,6 +89,10 @@ void *device_connection_find_match(struct device *dev, const char *con_id,
ret = fwnode_graph_devcon_match(fwnode, con_id, data, match);
if (ret)
return ret;
+
+ ret = fwnode_devcon_match(fwnode, con_id, data, match);
+ if (ret)
+ return ret;
}
mutex_lock(&devcon_lock);
--
2.20.1
next prev parent reply other threads:[~2019-04-12 13:41 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-12 13:41 [PATCH v3 00/13] Software fwnode references Heikki Krogerus
2019-04-12 13:41 ` [PATCH v3 01/13] software node: Allow node creation without properties Heikki Krogerus
2019-04-12 13:41 ` [PATCH v3 02/13] software node: Simplify software_node_release() function Heikki Krogerus
2019-04-12 13:41 ` [PATCH v3 03/13] software node: Add support for references Heikki Krogerus
2019-04-12 13:41 ` [PATCH v3 04/13] software node: Implement .get_reference_args fwnode operation Heikki Krogerus
2019-04-12 13:41 ` [PATCH v3 05/13] driver core: Add helper device_find_child_by_name() Heikki Krogerus
2019-04-25 19:46 ` Greg Kroah-Hartman
2019-04-12 13:41 ` [PATCH v3 06/13] ACPI / property: Don't limit named child node matching to data nodes Heikki Krogerus
2019-04-12 13:41 ` Heikki Krogerus [this message]
2019-04-12 13:41 ` [PATCH v3 08/13] usb: typec: Registering real device entries for the muxes Heikki Krogerus
2019-04-12 13:41 ` [PATCH v3 09/13] platform/x86: intel_cht_int33fe: Register max17047 in its own function Heikki Krogerus
2019-04-12 13:41 ` [PATCH v3 10/13] platform/x86: intel_cht_int33fe: Provide software nodes for the devices Heikki Krogerus
2019-04-12 15:29 ` Andy Shevchenko
2019-04-12 13:41 ` [PATCH v3 11/13] platform/x86: intel_cht_int33fe: Provide fwnode for the USB connector Heikki Krogerus
2019-04-17 9:52 ` Hans de Goede
2019-05-08 11:30 ` Heikki Krogerus
2019-04-12 13:41 ` [PATCH v3 12/13] platform/x86: intel_cht_int33fe: Link with external dependencies using fwnodes Heikki Krogerus
2019-04-12 13:41 ` [PATCH v3 13/13] platform/x86: intel_cht_int33fe: Replacing the old connections with references Heikki Krogerus
2019-04-16 21:35 ` Hans de Goede
2019-04-17 6:39 ` Heikki Krogerus
2019-04-17 9:19 ` Hans de Goede
2019-04-17 9:32 ` Heikki Krogerus
2019-04-17 9:52 ` Hans de Goede
2019-04-17 11:04 ` Heikki Krogerus
2019-04-17 11:15 ` Hans de Goede
2019-04-17 10:15 ` Hans de Goede
2019-04-17 10:44 ` Heikki Krogerus
2019-04-17 16:03 ` Hans de Goede
2019-05-08 11:28 ` Heikki Krogerus
2019-04-17 21:14 ` Hans de Goede
2019-05-08 11:40 ` Heikki Krogerus
2019-04-17 7:54 ` [PATCH v3 00/13] Software fwnode references Rafael J. Wysocki
2019-04-17 8:13 ` Heikki Krogerus
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