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SubjectRe: [PATCH RFC v2 1/4] media: i2c: adv7343: add support for asynchronous probing
Hi Guennadi,

Thanks for the quick review.

On Mon, Apr 22, 2013 at 4:08 PM, Guennadi Liakhovetski
<g.liakhovetski@gmx.de> wrote:
> Hi Prabhakar
>
> On Mon, 22 Apr 2013, Prabhakar Lad wrote:
>
>> 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;
>
> Do you still need this? Don't think it's needed any more with the latest
> V4L2-async version.
>
Yes not required missed to remove :)

Regards,
--Prabhakar

> Thanks
> Guennadi
>
>> 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
>>
>
> ---
> Guennadi Liakhovetski, Ph.D.
> Freelance Open-Source Software Developer
> http://www.open-technology.de/


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