shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-10 04:48:04 +09:00
Code Issues Packages Projects Releases Wiki Activity

drm/rockchip: analogix_dp: make panel detect to an optional action

Browse Source 
Some boards don't need to declare a panel device node, like the
display interface is DP monitors, so it's necessary to make the
panel detect to an optional action.

Change-Id: I0146e9f9fb2e35b5878ab114e8aa1df35ba4843d
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
This commit is contained in:
Yakir Yang
2016-04-05 15:38:45 +08:00
committed by Huang, Tao
parent 523ed4cfc6
commit 33cab09a90
1 changed files with 20 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
View File

@@ -289,38 +289,34 @@ static int rockchip_dp_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *panel_node, *port, *endpoint;
struct drm_panel *panel = NULL;
struct rockchip_dp_device *dp;
struct drm_panel *panel;
port = of_graph_get_port_by_id(dev->of_node, 1);
if (!port) {
dev_err(dev, "can't find output port\n");
return -EINVAL;
}
if (port) {
endpoint = of_get_child_by_name(port, "endpoint");
of_node_put(port);
if (!endpoint) {
dev_err(dev, "no output endpoint found\n");
return -EINVAL;
}
endpoint = of_get_child_by_name(port, "endpoint");
of_node_put(port);
if (!endpoint) {
dev_err(dev, "no output endpoint found\n");
return -EINVAL;
}
panel_node = of_graph_get_remote_port_parent(endpoint);
of_node_put(endpoint);
if (!panel_node) {
dev_err(dev, "no output node found\n");
return -EINVAL;
}
panel_node = of_graph_get_remote_port_parent(endpoint);
of_node_put(endpoint);
if (!panel_node) {
dev_err(dev, "no output node found\n");
return -EINVAL;
}
panel = of_drm_find_panel(panel_node);
if (!panel) {
DRM_ERROR("failed to find panel\n");
panel = of_drm_find_panel(panel_node);
if (!panel) {
DRM_ERROR("failed to find panel\n");
of_node_put(panel_node);
return -EPROBE_DEFER;
}
of_node_put(panel_node);
return -EPROBE_DEFER;
}
of_node_put(panel_node);
dp = devm_kzalloc(dev, sizeof(*dp), GFP_KERNEL);
if (!dp)
return -ENOMEM;