1 // SPDX-License-Identifier: GPL-2.0+
13 #include <drm/bridge/aux-bridge.h>
26 	ida_free(&drm_aux_hpd_bridge_ida, adev->id);  in drm_aux_hpd_bridge_release()
28 	of_node_put(adev->dev.platform_data);  in drm_aux_hpd_bridge_release()
29 	of_node_put(adev->dev.of_node);  in drm_aux_hpd_bridge_release()
40  * devm_drm_dp_hpd_bridge_alloc - allocate a HPD DisplayPort bridge
57 		return ERR_PTR(-ENOMEM);  in devm_drm_dp_hpd_bridge_alloc()
65 	adev->id = ret;  in devm_drm_dp_hpd_bridge_alloc()
66 	adev->name = "dp_hpd_bridge";  in devm_drm_dp_hpd_bridge_alloc()
67 	adev->dev.parent = parent;  in devm_drm_dp_hpd_bridge_alloc()
68 	adev->dev.release = drm_aux_hpd_bridge_release;  in devm_drm_dp_hpd_bridge_alloc()
69 	adev->dev.platform_data = of_node_get(np);  in devm_drm_dp_hpd_bridge_alloc()
71 	device_set_of_node_from_dev(&adev->dev, parent);  in devm_drm_dp_hpd_bridge_alloc()
75 		of_node_put(adev->dev.platform_data);  in devm_drm_dp_hpd_bridge_alloc()
76 		of_node_put(adev->dev.of_node);  in devm_drm_dp_hpd_bridge_alloc()
77 		ida_free(&drm_aux_hpd_bridge_ida, adev->id);  in devm_drm_dp_hpd_bridge_alloc()
96  * devm_drm_dp_hpd_bridge_add - register a HDP DisplayPort bridge
115  * drm_dp_hpd_bridge_register - allocate and register a HDP DisplayPort bridge
134 	return &adev->dev;  in drm_dp_hpd_bridge_register()
139  * drm_aux_hpd_bridge_notify - notify hot plug detection events
143  * A wrapper around drm_bridge_hpd_notify() that is used to report hot plug
156 	drm_bridge_hpd_notify(&data->bridge, status);  in drm_aux_hpd_bridge_notify()
164 	return flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR ? 0 : -EINVAL;  in drm_aux_hpd_bridge_attach()
176 	data = devm_drm_bridge_alloc(&auxdev->dev,  in drm_aux_hpd_bridge_probe()
182 	data->dev = &auxdev->dev;  in drm_aux_hpd_bridge_probe()
183 	data->bridge.of_node = dev_get_platdata(data->dev);  in drm_aux_hpd_bridge_probe()
184 	data->bridge.ops = DRM_BRIDGE_OP_HPD;  in drm_aux_hpd_bridge_probe()
185 	data->bridge.type = id->driver_data;  in drm_aux_hpd_bridge_probe()
188 	data->bridge.interlace_allowed = true;  in drm_aux_hpd_bridge_probe()
189 	data->bridge.ycbcr_420_allowed = true;  in drm_aux_hpd_bridge_probe()
193 	return devm_drm_bridge_add(data->dev, &data->bridge);  in drm_aux_hpd_bridge_probe()