drm/imx: imx-ldb: detach bridge on unbind

Don't leave the bridge attached to a stale driver instance when
unbinding, to allow reattachment on a rebind.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c
index 27a471c5e7c95270fc2dbe3e405f50d092edd820..3ce391c239b02ace097ab4fbfb89deaaebb24618 100644 (file)
--- a/drivers/gpu/drm/imx/imx-ldb.c
+++ b/drivers/gpu/drm/imx/imx-ldb.c
@@ -757,6 +757,8 @@ static void imx_ldb_unbind(struct device *dev, struct device *master,
        for (i = 0; i < 2; i++) {
                struct imx_ldb_channel *channel = &imx_ldb->channel[i];
 
+               if (channel->bridge)
+                       drm_bridge_detach(channel->bridge);
                if (channel->panel)
                        drm_panel_detach(channel->panel);