[media] of: move graph helpers from drivers/media/v4l2-core to drivers/of

This patch moves the parsing helpers used to parse connected graphs
in the device tree, like the video interface bindings documented in
Documentation/devicetree/bindings/media/video-interfaces.txt, from
drivers/media/v4l2-core/v4l2-of.c into drivers/of/base.c.

This allows to reuse the same parser code from outside the V4L2
framework, most importantly from display drivers.
The functions v4l2_of_get_next_endpoint, v4l2_of_get_remote_port,
and v4l2_of_get_remote_port_parent are moved. They are renamed to
of_graph_get_next_endpoint, of_graph_get_remote_port, and
of_graph_get_remote_port_parent, respectively.
Since there are not that many current users yet, switch all of
them to the new functions right away.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
This commit is contained in:
Philipp Zabel
2014-02-10 22:01:48 +01:00
parent 0414855fdc
commit fd9fdb78a9
12 changed files with 182 additions and 153 deletions

View File

@@ -36,6 +36,7 @@
#include <linux/module.h>
#include <linux/v4l2-mediabus.h>
#include <linux/of.h>
#include <linux/of_graph.h>
#include <media/v4l2-async.h>
#include <media/v4l2-device.h>
@@ -1068,7 +1069,7 @@ tvp514x_get_pdata(struct i2c_client *client)
if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node)
return client->dev.platform_data;
endpoint = v4l2_of_get_next_endpoint(client->dev.of_node, NULL);
endpoint = of_graph_get_next_endpoint(client->dev.of_node, NULL);
if (!endpoint)
return NULL;