linux-kernel - Re: [PATCH v2 1/5] drm/bridge_connector: Set default status connected for eDP connectors

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Date:   Wed, 26 Aug 2020 17:37:46 +0500
From:   Bilal Wasim <bwasim.lkml@...il.com>
To:     Enric Balletbo i Serra <enric.balletbo@...labora.com>
Cc:     linux-kernel@...r.kernel.org,
        Collabora Kernel ML <kernel@...labora.com>,
        matthias.bgg@...il.com, drinkcat@...omium.org, hsinyi@...omium.org,
        laurent.pinchart@...asonboard.com, sam@...nborg.org,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v2 1/5] drm/bridge_connector: Set default status
 connected for eDP connectors

On Wed, 26 Aug 2020 10:15:22 +0200
Enric Balletbo i Serra <enric.balletbo@...labora.com> wrote:

> In an eDP application, HPD is not required and on most bridge chips
> useless. If HPD is not used, we need to set initial status as
> connected, otherwise the connector created by the
> drm_bridge_connector API remains in an unknown state.
> 
> Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> Acked-by: Sam Ravnborg <sam@...nborg.org>
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
> ---
> 
> Changes in v2:
> - Included the patch `drm/bridge_connector: Set default status
> connected for eDP connectors`
> 
>  drivers/gpu/drm/drm_bridge_connector.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/drm_bridge_connector.c
> b/drivers/gpu/drm/drm_bridge_connector.c index
> c6994fe673f3..a58cbde59c34 100644 ---
> a/drivers/gpu/drm/drm_bridge_connector.c +++
> b/drivers/gpu/drm/drm_bridge_connector.c @@ -187,6 +187,7 @@
> drm_bridge_connector_detect(struct drm_connector *connector, bool
> force) case DRM_MODE_CONNECTOR_DPI: case DRM_MODE_CONNECTOR_LVDS:
>  		case DRM_MODE_CONNECTOR_DSI:
> +		case DRM_MODE_CONNECTOR_eDP:
>  			status = connector_status_connected;
>  			break;
>  		default:

Reviewed-by: Bilal Wasim <bwasim.lkml@...il.com>
Tested-by: Bilal Wasim <bwasim.lkml@...il.com>

-Bilal