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From:   Sasha Levin <sashal@kernel.org>
To:     linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc:     Hsin-Yi Wang <hsinyi@chromium.org>, CK Hu <ck.hu@mediatek.com>,
        Sasha Levin <sashal@kernel.org>,
        dri-devel@lists.freedesktop.org
Subject: [PATCH AUTOSEL 5.1 15/51] drm/mediatek: fix unbind functions
Date:   Tue, 25 Jun 2019 23:40:31 -0400
Message-Id: <20190626034117.23247-15-sashal@kernel.org>
In-Reply-To: <20190626034117.23247-1-sashal@kernel.org>
References: <20190626034117.23247-1-sashal@kernel.org>
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From: Hsin-Yi Wang <hsinyi@chromium.org>

[ Upstream commit 8fd7a37b191f93737f6280a9b5de65f98acc12c9 ]

detatch panel in mtk_dsi_destroy_conn_enc(), since .bind will try to
attach it again.

Fixes: 2e54c14e310f ("drm/mediatek: Add DSI sub driver")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/mediatek/mtk_dsi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index b00eb2d2e086..1ae3be99e0ff 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -844,6 +844,8 @@ static void mtk_dsi_destroy_conn_enc(struct mtk_dsi *dsi)
 	/* Skip connector cleanup if creation was delegated to the bridge */
 	if (dsi->conn.dev)
 		drm_connector_cleanup(&dsi->conn);
+	if (dsi->panel)
+		drm_panel_detach(dsi->panel);
 }
 
 static void mtk_dsi_ddp_start(struct mtk_ddp_comp *comp)
-- 
2.20.1