[PATCH v2 1/2] media: i2c: tvp7002: add support for asynchronous probing

From: Prabhakar Lad
Date: Sat Jun 22 2013 - 13:44:54 EST

From: "Lad, Prabhakar" <prabhakar.csengg@xxxxxxxxx>

Both synchronous and asynchronous tvp7002 subdevice probing
is supported by this patch.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
Cc: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Cc: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
Cc: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Cc: Sakari Ailus <sakari.ailus@xxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: davinci-linux-open-source@xxxxxxxxxxxxxxxxxxxx
drivers/media/i2c/tvp7002.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/media/i2c/tvp7002.c b/drivers/media/i2c/tvp7002.c
index 36ad565..b577548 100644
--- a/drivers/media/i2c/tvp7002.c
+++ b/drivers/media/i2c/tvp7002.c
@@ -31,6 +31,7 @@
#include <linux/module.h>
#include <linux/v4l2-dv-timings.h>
#include <media/tvp7002.h>
+#include <media/v4l2-async.h>
#include <media/v4l2-device.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ctrls.h>
@@ -1040,6 +1041,10 @@ static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id)

+ error = v4l2_async_register_subdev(&device->sd);
+ if (error)
+ goto error;
return 0;

@@ -1064,6 +1069,7 @@ static int tvp7002_remove(struct i2c_client *c)

v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter"
"on address 0x%x\n", c->addr);
+ v4l2_async_unregister_subdev(&device->sd);

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