linux-kernel - Re: [PATCH v3 06/12] drm/bridge: ti-sn65dsi86: Get rid of the useless detect() function

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Date:   Mon, 5 Apr 2021 03:58:46 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Douglas Anderson <dianders@...omium.org>
Cc:     Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Sam Ravnborg <sam@...nborg.org>,
        Linus W <linus.walleij@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        robdclark@...omium.org, Stephen Boyd <swboyd@...omium.org>,
        Steev Klimaszewski <steev@...i.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        linux-arm-msm@...r.kernel.org,
        Stanislav Lisovskiy <stanislav.lisovskiy@...el.com>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Robert Foss <robert.foss@...aro.org>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 06/12] drm/bridge: ti-sn65dsi86: Get rid of the
 useless detect() function

Hi Doug,

Thank you for the patch.

On Fri, Apr 02, 2021 at 03:28:40PM -0700, Douglas Anderson wrote:
> If we just leave the detect() function as NULL then the upper layers
> assume we're always connected. There's no reason for a stub.
> 
> Signed-off-by: Douglas Anderson <dianders@...omium.org>
> Reviewed-by: Andrzej Hajda <a.hajda@...sung.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

> ---
> 
> (no changes since v1)
> 
>  drivers/gpu/drm/bridge/ti-sn65dsi86.c | 12 ------------
>  1 file changed, 12 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> index e30460002c48..51db30d573c1 100644
> --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> @@ -306,20 +306,8 @@ static struct drm_connector_helper_funcs ti_sn_bridge_connector_helper_funcs = {
>  	.mode_valid = ti_sn_bridge_connector_mode_valid,
>  };
>  
> -static enum drm_connector_status
> -ti_sn_bridge_connector_detect(struct drm_connector *connector, bool force)
> -{
> -	/**
> -	 * TODO: Currently if drm_panel is present, then always
> -	 * return the status as connected. Need to add support to detect
> -	 * device state for hot pluggable scenarios.
> -	 */
> -	return connector_status_connected;
> -}
> -
>  static const struct drm_connector_funcs ti_sn_bridge_connector_funcs = {
>  	.fill_modes = drm_helper_probe_single_connector_modes,
> -	.detect = ti_sn_bridge_connector_detect,
>  	.destroy = drm_connector_cleanup,
>  	.reset = drm_atomic_helper_connector_reset,
>  	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,

-- 
Regards,

Laurent Pinchart