linux-kernel - Re: linux-next: Tree for February 22 (media/video/tvp7002)

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Date:	Thu, 25 Feb 2010 12:57:07 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Hans Verkuil <hverkuil@...all.nl>
CC:	linux-next@...r.kernel.org,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux Media Mailing List <linux-media@...r.kernel.org>,
	Santiago Nunez-Corrales <santiago.nunez@...gerun.com>
Subject: Re: linux-next: Tree for February 22 (media/video/tvp7002)

On 02/25/10 12:34, Hans Verkuil wrote:
> On Thursday 25 February 2010 17:52:05 Randy Dunlap wrote:
>> On Mon, 22 Feb 2010 08:21:44 -0800 Randy Dunlap wrote:
>>
>>> On 02/21/10 22:22, Stephen Rothwell wrote:
>>>> Hi all,
>>>>
>>>> Changes since 20100219:
>>>
>>>
>>> drivers/media/video/tvp7002.c:896: error: 'struct tvp7002' has no member named 'registers'
>>
>> same problem in linux-next-20100225.
>>
>> so where are these registers??
> 
> Hmm, that code is a remnant from older revisions of this driver. Unfortunately,
> when I compiled this driver before creating my pull request I forgot to turn on
> the CONFIG_VIDEO_ADV_DEBUG option and so I never saw it.
> 
> Anyway, below is a patch that fixes this. Please apply.
> 
> Signed-off-by: Hans Verkuil <hverkuil@...all.nl>

Acked-by: Randy Dunlap <randy.dunlap@...cle.com>

Thanks.

> Santiago, I've also fixed the g_register function: it never returned a register
> value in the original code.
> 
> Regards,
> 
> 	Hans
> 
> diff --git a/drivers/media/video/tvp7002.c b/drivers/media/video/tvp7002.c
> index 0f0270b..5a878bc 100644
> --- a/drivers/media/video/tvp7002.c
> +++ b/drivers/media/video/tvp7002.c
> @@ -859,13 +859,17 @@ static int tvp7002_g_register(struct v4l2_subdev *sd,
>  						struct v4l2_dbg_register *reg)
>  {
>  	struct i2c_client *client = v4l2_get_subdevdata(sd);
> +	u8 val;
> +	int ret;
>  
>  	if (!v4l2_chip_match_i2c_client(client, &reg->match))
>  		return -EINVAL;
>  	if (!capable(CAP_SYS_ADMIN))
>  		return -EPERM;
>  
> -	return reg->val < 0 ? -EINVAL : 0;
> +	ret = tvp7002_read(sd, reg->reg & 0xff, &val);
> +	reg->val = val;
> +	return ret;
>  }
>  
>  /*
> @@ -881,21 +885,13 @@ static int tvp7002_s_register(struct v4l2_subdev *sd,
>  						struct v4l2_dbg_register *reg)
>  {
>  	struct i2c_client *client = v4l2_get_subdevdata(sd);
> -	struct tvp7002 *device = to_tvp7002(sd);
> -	int wres;
>  
>  	if (!v4l2_chip_match_i2c_client(client, &reg->match))
>  		return -EINVAL;
>  	if (!capable(CAP_SYS_ADMIN))
>  		return -EPERM;
>  
> -	wres = tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff);
> -
> -	/* Update the register value in device's table */
> -	if (!wres)
> -		device->registers[reg->reg].value = reg->val;
> -
> -	return wres < 0 ? -EINVAL : 0;
> +	return tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff);
>  }
>  #endif
>  
> 
> 


-- 
~Randy
--
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