1 // SPDX-License-Identifier: GPL-2.0+ 2 3 #include <drm/drm_atomic_helper.h> 4 #include <drm/drm_edid.h> 5 #include <drm/drm_managed.h> 6 #include <drm/drm_probe_helper.h> 7 8 #include "vkms_connector.h" 9 10 static const struct drm_connector_funcs vkms_connector_funcs = { 11 .fill_modes = drm_helper_probe_single_connector_modes, 12 .reset = drm_atomic_helper_connector_reset, 13 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, 14 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 15 }; 16 17 static int vkms_conn_get_modes(struct drm_connector *connector) 18 { 19 int count; 20 21 /* Use the default modes list from DRM */ 22 count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX); 23 drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF); 24 25 return count; 26 } 27 28 static const struct drm_connector_helper_funcs vkms_conn_helper_funcs = { 29 .get_modes = vkms_conn_get_modes, 30 }; 31 32 struct vkms_connector *vkms_connector_init(struct vkms_device *vkmsdev) 33 { 34 struct drm_device *dev = &vkmsdev->drm; 35 struct vkms_connector *connector; 36 int ret; 37 38 connector = drmm_kzalloc(dev, sizeof(*connector), GFP_KERNEL); 39 if (!connector) 40 return ERR_PTR(-ENOMEM); 41 42 ret = drmm_connector_init(dev, &connector->base, &vkms_connector_funcs, 43 DRM_MODE_CONNECTOR_VIRTUAL, NULL); 44 if (ret) 45 return ERR_PTR(ret); 46 47 drm_connector_helper_add(&connector->base, &vkms_conn_helper_funcs); 48 49 return connector; 50 } 51