linux-kernel - Re: [PATCH v1 03/35] drm/atomic: Add TV subconnector property to get/set

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Date:   Mon, 8 Aug 2022 14:30:42 +0200
From:   Noralf Trønnes <noralf@...nnes.org>
To:     Maxime Ripard <maxime@...no.tech>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Jerome Brunet <jbrunet@...libre.com>,
        Samuel Holland <samuel@...lland.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Daniel Vetter <daniel@...ll.ch>, Emma Anholt <emma@...olt.net>,
        David Airlie <airlied@...ux.ie>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Kevin Hilman <khilman@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Maxime Ripard <mripard@...nel.org>
Cc:     linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Phil Elwell <phil@...pberrypi.com>,
        Mateusz Kwiatkowski <kfyatek+publicgit@...il.com>,
        linux-arm-kernel@...ts.infradead.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        linux-amlogic@...ts.infradead.org, dri-devel@...ts.freedesktop.org,
        Dom Cobley <dom@...pberrypi.com>
Subject: Re: [PATCH v1 03/35] drm/atomic: Add TV subconnector property to
 get/set_property



Den 29.07.2022 18.34, skrev Maxime Ripard:
> The subconnector property was created by drm_mode_create_tv_properties(),
> but wasn't exposed to the userspace through the generic
> atomic_get/set_property implementation, and wasn't stored in any generic
> state structure.
> 
> Let's solve this.
> 
> Signed-off-by: Maxime Ripard <maxime@...no.tech>
> 

I just realised that this and the select_subconnector property isn't
used by any drivers. Do you plan to use them? Maybe they don't need to
be wired up at all.

Anyways, up to you:

Reviewed-by: Noralf Trønnes <noralf@...nnes.org>

> diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c
> index c74c78a28171..c06d0639d552 100644
> --- a/drivers/gpu/drm/drm_atomic_uapi.c
> +++ b/drivers/gpu/drm/drm_atomic_uapi.c
> @@ -688,6 +688,8 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector,
>  		return -EINVAL;
>  	} else if (property == config->tv_select_subconnector_property) {
>  		state->tv.select_subconnector = val;
> +	} else if (property == config->tv_subconnector_property) {
> +		state->tv.subconnector = val;
>  	} else if (property == config->tv_left_margin_property) {
>  		state->tv.margins.left = val;
>  	} else if (property == config->tv_right_margin_property) {
> @@ -796,6 +798,8 @@ drm_atomic_connector_get_property(struct drm_connector *connector,
>  			*val = connector->dpms;
>  	} else if (property == config->tv_select_subconnector_property) {
>  		*val = state->tv.select_subconnector;
> +	} else if (property == config->tv_subconnector_property) {
> +		*val = state->tv.subconnector;
>  	} else if (property == config->tv_left_margin_property) {
>  		*val = state->tv.margins.left;
>  	} else if (property == config->tv_right_margin_property) {
> diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
> index f8091edf9a33..1e9996b33cc8 100644
> --- a/include/drm/drm_connector.h
> +++ b/include/drm/drm_connector.h
> @@ -672,6 +672,7 @@ struct drm_connector_tv_margins {
>  /**
>   * struct drm_tv_connector_state - TV connector related states
>   * @select_subconnector: selected subconnector
> + * @subconnector: detected subconnector
>   * @margins: TV margins
>   * @mode: TV mode
>   * @brightness: brightness in percent
> @@ -683,6 +684,7 @@ struct drm_connector_tv_margins {
>   */
>  struct drm_tv_connector_state {
>  	enum drm_mode_subconnector select_subconnector;
> +	enum drm_mode_subconnector subconnector;
>  	struct drm_connector_tv_margins margins;
>  	unsigned int mode;
>  	unsigned int brightness;
>