[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

@@ -20,6 +20,7 @@
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/of_device.h>
#include <linux/of_graph.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/types.h>
@@ -473,7 +474,7 @@ static int fimc_md_parse_port_node(struct fimc_md *fmd,
pd->mux_id = (endpoint.port - 1) & 0x1;
rem = v4l2_of_get_remote_port_parent(ep);
rem = of_graph_get_remote_port_parent(ep);
of_node_put(ep);
if (rem == NULL) {
v4l2_info(&fmd->v4l2_dev, "Remote device at %s not found\n",