Re: [PATCH 1/7] v4l2-subdev: replace v4l2_subdev_fh by v4l2_subdev_pad_config

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On Fri, Feb 13, 2015 at 12:30:00PM +0100, Hans Verkuil wrote:
> From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
> 
> If a subdevice pad op is called from a bridge driver, then there is
> no v4l2_subdev_fh struct that can be passed to the subdevice. This
> made it hard to use such subdevs from a bridge driver.
> 
> This patch replaces the v4l2_subdev_fh pointer by a v4l2_subdev_pad_config
> pointer in the pad ops. This allows bridge drivers to use the various
> try_ pad ops by creating a v4l2_subdev_pad_config struct and passing it
> along to the pad op.
> 
> The v4l2_subdev_get_try_* macros had to be changed because of this, so
> I also took the opportunity to use the full name of the v4l2_subdev_get_try_*
> functions in the __V4L2_SUBDEV_MK_GET_TRY macro arguments: if you now do
> 'git grep v4l2_subdev_get_try_format' you will actually find the header
> where it is defined.
> 
> One remark regarding the drivers/staging/media/davinci_vpfe patches: the
> *_init_formats() functions assumed that fh could be NULL. However, that's
> not true for this driver, it's always set. This is almost certainly a copy
> and paste from the omap3isp driver. I've updated the code to reflect the
> fact that fh is never NULL.
> 
> Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
> Cc: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>

Thanks! For smiapp:

Acked-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>

-- 
Sakari Ailus
e-mail: sakari.ailus@xxxxxx	XMPP: sailus@xxxxxxxxxxxxxx
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