Re: [PATCH 6/6] hantro: Refactor for V4L2 API spec compliancy

[Ezequiel Garcia <ezequiel@collabora.com>]

On Wed, 2020-03-11 at 14:43 -0300, Ezequiel Garcia wrote:
> Refactor how S_FMT and TRY_FMT are handled, and also make sure
> internal initial format and format reset are done properly.
> 
> The latter is achieved by making sure the same hantro_{set,try}_fmt
> helpers are called on all paths that set the format (which is
> part of the driver state).
> 
> This commit removes the following v4l2-compliance warnings:
> 
> test VIDIOC_G_FMT: OK
> 	fail: v4l2-test-formats.cpp(711): Video Capture Multiplanar: TRY_FMT(G_FMT) != G_FMT
> test VIDIOC_TRY_FMT: FAIL
> 	fail: v4l2-test-formats.cpp(1116): Video Capture Multiplanar: S_FMT(G_FMT) != G_FMT
> test VIDIOC_S_FMT: FAIL
> 
> Reported-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
> ---
[..]
> @@ -227,12 +232,12 @@ static int vidioc_g_fmt_cap_mplane(struct file *file, void *priv,
>  	return 0;
>  }
>  
> -static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f,
> -			  bool capture)
> +static int hantro_try_fmt(const struct hantro_ctx *ctx,

Oops, it seems there's a warning due to ctx being const-qualified.

That should be fixed of course.

Regards,
Ezequiel