[PATCH AUTOSEL 4.9 05/11] drm/mediatek: fix unbind functions

From: Sasha Levin
Date: Tue Jun 25 2019 - 23:46:20 EST


From: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx>

[ 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@xxxxxxxxxxxx>
Signed-off-by: CK Hu <ck.hu@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 eaa5a2240c0c..bdbf358697cd 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -720,6 +720,8 @@ 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