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Patch "drm/sun4i: Ignore the generic connectors for components" has been added to the 4.9-stable tree

PATCH [email protected] 1 participant 1 message Apr 9, 2018

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This is a note to let you know that I've just added the patch titled

drm/sun4i: Ignore the generic connectors for components

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
drm-sun4i-ignore-the-generic-connectors-for-components.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From foo@baz Mon Apr 9 17:09:24 CEST 2018

From: Maxime Ripard <[email protected]>
Date: Sat, 27 May 2017 18:09:32 +0200
Subject: drm/sun4i: Ignore the generic connectors for components

From: Maxime Ripard <[email protected]>

[ Upstream commit 49baeb074783f5bdf770dc9fac5fbb2837190583 ]

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.

---
 drivers/gpu/drm/sun4i/sun4i_drv.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)
drivers/gpu/drm/sun4i/sun4i_drv.c +12 -0
@@ -212,6 +212,11 @@ static const struct component_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") ||
@@ -252,6 +257,13 @@ static int sun4i_drv_add_endpoints(struc
 	    !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",

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/dt-bindings-display-sun4i-add-allwinner-tcon-channel-property.patch queue-4.9/drm-sun4i-ignore-the-generic-connectors-for-components.patch