linux-kernel - [PATCH AUTOSEL 5.8 037/132] drm/bridge_connector: Set default status connected for eDP connectors

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Message-Id: <20201026235205.1023962-37-sashal@kernel.org>
Date:   Mon, 26 Oct 2020 19:50:29 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Bilal Wasim <bwasim.lkml@...il.com>,
        Sasha Levin <sashal@...nel.org>,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 5.8 037/132] drm/bridge_connector: Set default status connected for eDP connectors

From: Enric Balletbo i Serra <enric.balletbo@...labora.com>

[ Upstream commit c5589b39549d1875bb506da473bf4580c959db8c ]

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>
Reviewed-by: Bilal Wasim <bwasim.lkml@...il.com>
Tested-by: Bilal Wasim <bwasim.lkml@...il.com>
Signed-off-by: Sam Ravnborg <sam@...nborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200826081526.674866-2-enric.balletbo@collabora.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 c6994fe673f31..a58cbde59c34a 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:
-- 
2.25.1