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authorLad, Prabhakar <prabhakar.csengg@gmail.com>2013-06-22 11:07:37 +0200
committerMauro Carvalho Chehab <m.chehab@samsung.com>2013-07-26 18:15:18 +0200
commit6555cfc5e7f8080a76edc2f556c709770fc1db57 (patch)
tree764a0116b255eeed79aea983b75e313766020339
parent[media] media: i2c: ths8200: add OF support (diff)
downloadlinux-6555cfc5e7f8080a76edc2f556c709770fc1db57.tar.xz
linux-6555cfc5e7f8080a76edc2f556c709770fc1db57.zip
[media] media: i2c: adv7343: add support for asynchronous probing
Both synchronous and asynchronous adv7343 subdevice probing is supported by this patch. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
-rw-r--r--drivers/media/i2c/adv7343.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/media/i2c/adv7343.c b/drivers/media/i2c/adv7343.c
index 7606218ec4a7..8080c2cf1029 100644
--- a/drivers/media/i2c/adv7343.c
+++ b/drivers/media/i2c/adv7343.c
@@ -27,6 +27,7 @@
#include <linux/uaccess.h>
#include <media/adv7343.h>
+#include <media/v4l2-async.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
@@ -445,16 +446,21 @@ static int adv7343_probe(struct i2c_client *client,
ADV7343_GAIN_DEF);
state->sd.ctrl_handler = &state->hdl;
if (state->hdl.error) {
- int err = state->hdl.error;
-
- v4l2_ctrl_handler_free(&state->hdl);
- return err;
+ err = state->hdl.error;
+ goto done;
}
v4l2_ctrl_handler_setup(&state->hdl);
err = adv7343_initialize(&state->sd);
if (err)
+ goto done;
+
+ err = v4l2_async_register_subdev(&state->sd);
+
+done:
+ if (err < 0)
v4l2_ctrl_handler_free(&state->hdl);
+
return err;
}
@@ -463,6 +469,7 @@ static int adv7343_remove(struct i2c_client *client)
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct adv7343_state *state = to_state(sd);
+ v4l2_async_unregister_subdev(&state->sd);
v4l2_device_unregister_subdev(sd);
v4l2_ctrl_handler_free(&state->hdl);