1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) 2016 Marek Vasut <marex@denx.de>
6 #include <linux/of_graph.h>
8 #include <drm/drm_atomic.h>
9 #include <drm/drm_atomic_helper.h>
10 #include <drm/drm_crtc.h>
11 #include <drm/drm_fb_cma_helper.h>
12 #include <drm/drm_gem_cma_helper.h>
13 #include <drm/drm_of.h>
14 #include <drm/drm_panel.h>
15 #include <drm/drm_plane_helper.h>
16 #include <drm/drm_probe_helper.h>
17 #include <drm/drm_simple_kms_helper.h>
20 #include "mxsfb_drv.h"
22 static struct mxsfb_drm_private *
23 drm_connector_to_mxsfb_drm_private(struct drm_connector *connector)
25 return container_of(connector, struct mxsfb_drm_private, connector);
28 static int mxsfb_panel_get_modes(struct drm_connector *connector)
30 struct mxsfb_drm_private *mxsfb =
31 drm_connector_to_mxsfb_drm_private(connector);
34 return mxsfb->panel->funcs->get_modes(mxsfb->panel);
40 drm_connector_helper_funcs mxsfb_panel_connector_helper_funcs = {
41 .get_modes = mxsfb_panel_get_modes,
44 static enum drm_connector_status
45 mxsfb_panel_connector_detect(struct drm_connector *connector, bool force)
47 struct mxsfb_drm_private *mxsfb =
48 drm_connector_to_mxsfb_drm_private(connector);
51 return connector_status_connected;
53 return connector_status_disconnected;
56 static void mxsfb_panel_connector_destroy(struct drm_connector *connector)
58 struct mxsfb_drm_private *mxsfb =
59 drm_connector_to_mxsfb_drm_private(connector);
62 drm_panel_detach(mxsfb->panel);
64 drm_connector_unregister(connector);
65 drm_connector_cleanup(connector);
68 static const struct drm_connector_funcs mxsfb_panel_connector_funcs = {
69 .detect = mxsfb_panel_connector_detect,
70 .fill_modes = drm_helper_probe_single_connector_modes,
71 .destroy = mxsfb_panel_connector_destroy,
72 .reset = drm_atomic_helper_connector_reset,
73 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
74 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
77 int mxsfb_create_output(struct drm_device *drm)
79 struct mxsfb_drm_private *mxsfb = drm->dev_private;
80 struct drm_panel *panel;
83 ret = drm_of_find_panel_or_bridge(drm->dev->of_node, 0, 0, &panel, NULL);
87 mxsfb->connector.dpms = DRM_MODE_DPMS_OFF;
88 mxsfb->connector.polled = 0;
89 drm_connector_helper_add(&mxsfb->connector,
90 &mxsfb_panel_connector_helper_funcs);
91 ret = drm_connector_init(drm, &mxsfb->connector,
92 &mxsfb_panel_connector_funcs,
93 DRM_MODE_CONNECTOR_Unknown);