[PATCH v2] drm/of: Consider the state in which the ep is disabled

Sandy Huang hjc at rock-chips.com
Tue Jul 7 07:25:26 EDT 2020


don't mask possible_crtcs if remote-point is disabled.

Signed-off-by: Sandy Huang <hjc at rock-chips.com>
---
 drivers/gpu/drm/drm_of.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c
index fdb05fbf72a0..565f05f5f11b 100644
--- a/drivers/gpu/drm/drm_of.c
+++ b/drivers/gpu/drm/drm_of.c
@@ -66,6 +66,9 @@ uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
 	uint32_t possible_crtcs = 0;
 
 	for_each_endpoint_of_node(port, ep) {
+		if (!of_device_is_available(ep))
+			continue;
+
 		remote_port = of_graph_get_remote_port(ep);
 		if (!remote_port) {
 			of_node_put(ep);
-- 
2.17.1






More information about the Linux-rockchip mailing list