mail archive of the barebox mailing list
 help / color / mirror / Atom feed
From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 03/13] of_graph: add of_graph_port_is_available
Date: Thu,  9 Jul 2015 09:24:07 +0200	[thread overview]
Message-ID: <1436426657-5266-4-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1436426657-5266-1-git-send-email-s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/of/base.c  | 22 ++++++++++++++++++++++
 include/of_graph.h |  1 +
 2 files changed, 23 insertions(+)

diff --git a/drivers/of/base.c b/drivers/of/base.c
index b2c4b23..334b8a2 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -2210,3 +2210,25 @@ struct device_node *of_graph_get_remote_port(const struct device_node *node)
 	return np->parent;
 }
 EXPORT_SYMBOL(of_graph_get_remote_port);
+
+int of_graph_port_is_available(struct device_node *node)
+{
+	struct device_node *endpoint;
+	int available = 0;
+
+	for_each_child_of_node(node, endpoint) {
+		struct device_node *remote_parent;
+
+		remote_parent = of_graph_get_remote_port_parent(endpoint);
+		if (!remote_parent)
+			continue;
+
+		if (!of_device_is_available(remote_parent))
+			continue;
+
+		available = 1;
+	}
+
+	return available;
+}
+EXPORT_SYMBOL(of_graph_port_is_available);
diff --git a/include/of_graph.h b/include/of_graph.h
index fa037db..254dd2c 100644
--- a/include/of_graph.h
+++ b/include/of_graph.h
@@ -45,5 +45,6 @@ struct device_node *of_graph_get_next_endpoint(const struct device_node *parent,
 struct device_node *of_graph_get_remote_port_parent(
 					const struct device_node *node);
 struct device_node *of_graph_get_remote_port(const struct device_node *node);
+int of_graph_port_is_available(struct device_node *node);
 
 #endif /* __LINUX_OF_GRAPH_H */
-- 
2.1.4


_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox

  parent reply	other threads:[~2015-07-09  7:24 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-09  7:24 Video support for EfikaSB Sascha Hauer
2015-07-09  7:24 ` [PATCH 01/13] of: base: implement of_get_next_child Sascha Hauer
2015-07-09  7:24 ` [PATCH 02/13] of: import of_graph functions Sascha Hauer
2015-07-09  7:24 ` Sascha Hauer [this message]
2015-07-09  7:24 ` [PATCH 04/13] ARM: i.MX51 Efikasb: Disable backlight earlier Sascha Hauer
2015-07-09  7:24 ` [PATCH 05/13] ARM: i.MX51 Efikasb: make more space for barebox Sascha Hauer
2015-07-09  7:24 ` [PATCH 06/13] ARM: i.MX51 Efikasb: update device tree Sascha Hauer
2015-07-09  7:24 ` [PATCH 07/13] video: Add Video Pipeline (VPL) support Sascha Hauer
2015-07-09  7:24 ` [PATCH 08/13] video: Add MTL017 LVDS encoder support Sascha Hauer
2015-07-09  7:24 ` [PATCH 09/13] video: Add missing prototype for display_timings_release Sascha Hauer
2015-07-09  7:24 ` [PATCH 10/13] video: ipuv3: remove unused variable Sascha Hauer
2015-07-09  7:24 ` [PATCH 11/13] video: ipuv3: Replace ipu_output with VPL Sascha Hauer
2015-07-09  7:24 ` [PATCH 12/13] video: ipuv3: match ipu_di_signal_cfg's clk_pol with its description Sascha Hauer
2015-07-09  7:24 ` [PATCH 13/13] video: Add simple-panel support Sascha Hauer

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=1436426657-5266-4-git-send-email-s.hauer@pengutronix.de \
    --to=s.hauer@pengutronix.de \
    --cc=barebox@lists.infradead.org \
    /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