[media] media: i2c: tvp7002: add support for asynchronous probing

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

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/media/i2c/tvp7002.c b/drivers/media/i2c/tvp7002.c
index a4e4948..f6b1f3f 100644 (file)
--- 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>
@@ -1039,6 +1040,10 @@ static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id)
        }
        v4l2_ctrl_handler_setup(&device->hdl);
 
+       error = v4l2_async_register_subdev(&device->sd);
+       if (error)
+               goto error;
+
        return 0;
 
 error:
@@ -1063,6 +1068,7 @@ 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);
 #if defined(CONFIG_MEDIA_CONTROLLER)
        media_entity_cleanup(&device->sd.entity);
 #endif