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

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Message-ID: <02c89cb555c10ae61a365a2f54eb72bc4aee3c78.camel@collabora.com>
Date:   Wed, 11 Mar 2020 16:01:44 -0300
From:   Ezequiel Garcia <ezequiel@...labora.com>
To:     linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     Tomasz Figa <tfiga@...omium.org>,
        Nicolas Dufresne <nicolas@...fresne.ca>, kernel@...labora.com,
        Jonas Karlman <jonas@...boo.se>,
        Heiko Stuebner <heiko@...ech.de>,
        Hans Verkuil <hverkuil@...all.nl>,
        Alexandre Courbot <acourbot@...omium.org>,
        Jeffrey Kardatzke <jkardatzke@...omium.org>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>
Subject: Re: [PATCH 6/6] hantro: Refactor for V4L2 API spec compliancy

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@...labora.com>
> Signed-off-by: Ezequiel Garcia <ezequiel@...labora.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