[PATCH v3 15/21] drm/sun4i: Ignore the generic connectors for components

From: Maxime Ripard
Date: Wed May 17 2017 - 03:44:20 EST


The generic connectors such as hdmi-connector doesn't have any driver in,
so if they are added to the component list, we will be waiting forever for
a non-existing driver to probe.

Add a list of the connectors we want to ignore when building our component
list.

Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/sun4i/sun4i_drv.c | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index c52f7a9eb045..9b3e8c8d7c75 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -166,6 +166,11 @@ static const struct component_master_ops sun4i_drv_master_ops = {
.unbind = sun4i_drv_unbind,
};

+static bool sun4i_drv_node_is_connector(struct device_node *node)
+{
+ return of_device_is_compatible(node, "hdmi-connector");
+}
+
static bool sun4i_drv_node_is_frontend(struct device_node *node)
{
return of_device_is_compatible(node, "allwinner,sun5i-a13-display-frontend") ||
@@ -206,6 +211,13 @@ static int sun4i_drv_add_endpoints(struct device *dev,
!of_device_is_available(node))
return 0;

+ /*
+ * The connectors will be the last nodes in our pipeline, we
+ * can just bail out.
+ */
+ if (sun4i_drv_node_is_connector(node))
+ return 0;
+
if (!sun4i_drv_node_is_frontend(node)) {
/* Add current component */
DRM_DEBUG_DRIVER("Adding component %s\n",
--
git-series 0.9.1