linux-kernel - Re: [PATCH v8 5/7] media: i2c: Add TDA1997x HDMI receiver driver

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Date:   Tue, 6 Feb 2018 21:38:24 +0100
From:   Hans Verkuil <hverkuil@...all.nl>
To:     Tim Harvey <tharvey@...eworks.com>, linux-media@...r.kernel.org,
        alsa-devel@...a-project.org
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        shawnguo@...nel.org, Steve Longerbeam <slongerbeam@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Hans Verkuil <hansverk@...co.com>,
        Mauro Carvalho Chehab <mchehab@...pensource.com>
Subject: Re: [PATCH v8 5/7] media: i2c: Add TDA1997x HDMI receiver driver

On 02/06/2018 09:27 PM, Tim Harvey wrote:
> Add support for the TDA1997x HDMI receivers.
> 
> Cc: Hans Verkuil <hverkuil@...all.nl>
> Signed-off-by: Tim Harvey <tharvey@...eworks.com>
> ---

<snip>

> +static int tda1997x_get_dv_timings_cap(struct v4l2_subdev *sd,
> +				       struct v4l2_dv_timings_cap *cap)
> +{
> +	if (cap->pad != TDA1997X_PAD_SOURCE)
> +		return -EINVAL;
> +
> +	*cap = tda1997x_dv_timings_cap;
> +	return 0;
> +}
> +
> +static int tda1997x_enum_dv_timings(struct v4l2_subdev *sd,
> +				    struct v4l2_enum_dv_timings *timings)
> +{
> +	if (timings->pad != TDA1997X_PAD_SOURCE)
> +		return -EINVAL;
> +
> +	return v4l2_enum_dv_timings_cap(timings, &tda1997x_dv_timings_cap,
> +					NULL, NULL);
> +}

You shouldn't need this pad test: it's done in the v4l2-subdev.c core code
already. But please double-check :-)

Can you post the output of the v4l2-compliance test? I'm curious to see it.

Can you also try to run v4l2-compliance -m /dev/mediaX? That also tests
whether the right entity types are set (note: testing for that should
also happen in the subdev compliance test, but I haven't done that yet).

Regards,

	Hans