[PATCH v3 6/6] drm/vc4: hdmi: Set default state margin at reset

[Noralf Trønnes]

Den 18.04.2019 14.41, skrev Maxime Ripard:
> Now that the TV margins are properly parsed and filled into
> drm_cmdline_mode, we just need to initialise the first state at reset to
> get those values and start using them.
> 
> Signed-off-by: Maxime Ripard <maxime.ripard at bootlin.com>
> ---
>  drivers/gpu/drm/vc4/vc4_hdmi.c | 16 +++++++++++++++-
>  1 file changed, 15 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
> index 99fc8569e0f5..d86f154138f5 100644
> --- a/drivers/gpu/drm/vc4/vc4_hdmi.c
> +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
> @@ -255,11 +255,25 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
>  	return ret;
>  }
>  
> +static void vc4_hdmi_connector_reset(struct drm_connector *connector)
> +{
> +	struct drm_cmdline_mode *cmdline = &connector->cmdline_mode;
> +	struct drm_connector_state *state;
> +
> +	drm_atomic_helper_connector_reset(connector);

Initially I wondered why not do this in the helper, but ofc that would
apply the values to all the connectors. I know too little about this
subject to argue for having it in the helper, and it can be changed
later if deemed convinient, so:

Acked-by: Noralf Trønnes <noralf at tronnes.org>

> +
> +	state = connector->state;
> +	state->tv.margins.left = cmdline->tv_margins.left;
> +	state->tv.margins.right = cmdline->tv_margins.right;
> +	state->tv.margins.top = cmdline->tv_margins.top;
> +	state->tv.margins.bottom = cmdline->tv_margins.bottom;
> +}
> +
>  static const struct drm_connector_funcs vc4_hdmi_connector_funcs = {
>  	.detect = vc4_hdmi_connector_detect,
>  	.fill_modes = drm_helper_probe_single_connector_modes,
>  	.destroy = vc4_hdmi_connector_destroy,
> -	.reset = drm_atomic_helper_connector_reset,
> +	.reset = vc4_hdmi_connector_reset,
>  	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
>  	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
>  };
>