Messages in this thread Patch in this message | | | From | Prabhakar Lad <> | Subject | [PATCH RFC v2 1/4] media: i2c: adv7343: add support for asynchronous probing | Date | Mon, 22 Apr 2013 15:47:25 +0530 |
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From: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Both synchronous and asynchronous adv7343 subdevice probing is supported by this patch.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Hans Verkuil <hverkuil@xs4all.nl> Cc: Sakari Ailus <sakari.ailus@iki.fi> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> --- drivers/media/i2c/adv7343.c | 17 +++++++++++++---- 1 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/media/i2c/adv7343.c b/drivers/media/i2c/adv7343.c index 9fc2b98..5b1417b 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-chip-ident.h> #include <media/v4l2-ctrls.h> @@ -44,6 +45,7 @@ struct adv7343_state { struct v4l2_subdev sd; struct v4l2_ctrl_handler hdl; const struct adv7343_platform_data *pdata; + struct v4l2_async_subdev_list asdl; u8 reg00; u8 reg01; u8 reg02; @@ -455,16 +457,22 @@ 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; + + state->sd.dev = &client->dev; + err = v4l2_async_register_subdev(&state->sd); + +done: + if (err < 0) v4l2_ctrl_handler_free(&state->hdl); + return err; } @@ -473,6 +481,7 @@ 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); -- 1.7.4.1
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