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%3Ba=su...

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 stable@vger.kernel.org know about it.

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

From: Maxime Ripard maxime.ripard@free-electrons.com Date: Sat, 27 May 2017 18:09:32 +0200 Subject: drm/sun4i: Ignore the generic connectors for components

From: Maxime Ripard maxime.ripard@free-electrons.com

[ 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.

Reviewed-by: Chen-Yu Tsai wens@csie.org Signed-off-by: Maxime Ripard maxime.ripard@free-electrons.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/sun4i/sun4i_drv.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)

--- a/drivers/gpu/drm/sun4i/sun4i_drv.c +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c @@ -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 maxime.ripard@free-electrons.com 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