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 v2 07/12] device connection: Find connections also by checking the references
Date: Wed, 10 Apr 2019 18:25:00 +0300 [thread overview]
Message-ID: <20190410152505.87041-8-heikki.krogerus@linux.intel.com> (raw)
In-Reply-To: <20190410152505.87041-1-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:[~2019-04-10 15:25 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-10 15:24 [PATCH 00/12] Software fwnode references Heikki Krogerus
2019-04-10 15:24 ` [PATCH v2 01/12] software node: Allow node creation without properties Heikki Krogerus
2019-04-10 15:24 ` [PATCH v2 02/12] software node: Simplify software_node_release() function Heikki Krogerus
2019-04-10 15:24 ` [PATCH v2 03/12] software node: Add support for references Heikki Krogerus
2019-04-10 15:24 ` [PATCH v2 04/12] software node: Implement .get_reference_args fwnode operation Heikki Krogerus
2019-04-12 8:48 ` Rafael J. Wysocki
2019-04-12 11:40 ` Heikki Krogerus
2019-04-10 15:24 ` [PATCH v2 05/12] driver core: Add helper device_find_child_by_name() Heikki Krogerus
2019-04-10 15:24 ` [PATCH v2 06/12] ACPI / property: Don't limit named child node matching to data nodes Heikki Krogerus
2019-04-11 13:02 ` Heikki Krogerus
2019-04-10 15:25 ` Heikki Krogerus [this message]
2019-04-10 15:25 ` [PATCH v2 08/12] usb: typec: Registering real device entries for the muxes Heikki Krogerus
2019-04-11 12:34 ` Andy Shevchenko
2019-04-10 15:25 ` [PATCH v2 09/12] platform/x86: intel_cht_int33fe: Provide software nodes for the devices Heikki Krogerus
2019-04-11 13:31 ` Andy Shevchenko
2019-04-11 13:35 ` Heikki Krogerus
2019-04-10 15:25 ` [PATCH v2 10/12] platform/x86: intel_cht_int33fe: Provide fwnode for the USB connector Heikki Krogerus
2019-04-10 15:25 ` [PATCH v2 11/12] platform/x86: intel_cht_int33fe: Link with external dependencies using fwnodes Heikki Krogerus
2019-04-11 13:28 ` Andy Shevchenko
2019-04-10 15:25 ` [PATCH v2 12/12] platform/x86: intel_cht_int33fe: Replacing the old connections with references Heikki Krogerus
2019-04-11 13:30 ` Andy Shevchenko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190410152505.87041-8-heikki.krogerus@linux.intel.com \
--to=heikki.krogerus@linux.intel.com \
--cc=andy@infradead.org \
--cc=dvhart@infradead.org \
--cc=gregkh@linuxfoundation.org \
--cc=hdegoede@redhat.com \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=platform-driver-x86@vger.kernel.org \
--cc=rjw@rjwysocki.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).