drm/connector: Change DRM card alias from underscore to hyphen

Apparently aliases are only allowed lower case and hyphens,
so swap the use of underscore to hyphen.

Fixes: 3aa1f2477545 ("drm: Look for an alias for the displays to use as the DRM device name")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index fa437a1..37820ac 100644 (file)
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -115,7 +115,7 @@ static struct drm_conn_prop_enum_list drm_connector_enum_list[] = {
 };
 
 #define MAX_DT_NODE_NAME_LEN   20
-#define DT_DRM_NODE_PREFIX     "drm_"
+#define DT_DRM_NODE_PREFIX     "drm-"
 
 static void drm_connector_get_of_name(int type, char *node_name, int length)
 {