drm/imx: parallel-display: detach bridge or panel on unbind

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

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

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c
index f20333790728..d796ada2a47a 100644
--- a/drivers/gpu/drm/imx/parallel-display.c
+++ b/drivers/gpu/drm/imx/parallel-display.c
@@ -293,6 +293,11 @@ static void imx_pd_unbind(struct device *dev, struct device *master,
 {
         struct imx_parallel_display *imxpd = dev_get_drvdata(dev);
 
+        if (imxpd->bridge)
+                drm_bridge_detach(imxpd->bridge);
+        if (imxpd->panel)
+                drm_panel_detach(imxpd->panel);
+
         kfree(imxpd->edid);
 }