projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 45d59d70 MV |
1 | /* |
| 2 | * Copyright (C) 2016 Marek Vasut <marex@denx.de> | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU General Public License | |
| 6 | * as published by the Free Software Foundation; either version 2 | |
| 7 | * of the License, or (at your option) any later version. | |
| 8 | * This program is distributed in the hope that it will be useful, | |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 11 | * GNU General Public License for more details. | |
| 12 | */ | |
| 13 | ||
| 14 | #include <linux/of_graph.h> | |
| 15 | ||
| 16 | #include <drm/drm_atomic.h> | |
| 17 | #include <drm/drm_atomic_helper.h> | |
| 18 | #include <drm/drm_crtc.h> | |
| 45d59d70 MV |
19 | #include <drm/drm_fb_cma_helper.h> |
| 20 | #include <drm/drm_gem_cma_helper.h> | |
| ebc94461 | 21 | #include <drm/drm_of.h> |
| 45d59d70 MV |
22 | #include <drm/drm_panel.h> |
| 23 | #include <drm/drm_plane_helper.h> | |
| fcd70cd3 | 24 | #include <drm/drm_probe_helper.h> |
| 45d59d70 MV |
25 | #include <drm/drm_simple_kms_helper.h> |
| 26 | #include <drm/drmP.h> | |
| 27 | ||
| 28 | #include "mxsfb_drv.h" | |
| 29 | ||
| 30 | static struct mxsfb_drm_private * | |
| 31 | drm_connector_to_mxsfb_drm_private(struct drm_connector *connector) | |
| 32 | { | |
| 33 | return container_of(connector, struct mxsfb_drm_private, connector); | |
| 34 | } | |
| 35 | ||
| 36 | static int mxsfb_panel_get_modes(struct drm_connector *connector) | |
| 37 | { | |
| 38 | struct mxsfb_drm_private *mxsfb = | |
| 39 | drm_connector_to_mxsfb_drm_private(connector); | |
| 40 | ||
| 41 | if (mxsfb->panel) | |
| 42 | return mxsfb->panel->funcs->get_modes(mxsfb->panel); | |
| 43 | ||
| 44 | return 0; | |
| 45 | } | |
| 46 | ||
| 47 | static const struct | |
| 48 | drm_connector_helper_funcs mxsfb_panel_connector_helper_funcs = { | |
| 49 | .get_modes = mxsfb_panel_get_modes, | |
| 50 | }; | |
| 51 | ||
| 52 | static enum drm_connector_status | |
| 53 | mxsfb_panel_connector_detect(struct drm_connector *connector, bool force) | |
| 54 | { | |
| 55 | struct mxsfb_drm_private *mxsfb = | |
| 56 | drm_connector_to_mxsfb_drm_private(connector); | |
| 57 | ||
| 58 | if (mxsfb->panel) | |
| 59 | return connector_status_connected; | |
| 60 | ||
| 61 | return connector_status_disconnected; | |
| 62 | } | |
| 63 | ||
| 64 | static void mxsfb_panel_connector_destroy(struct drm_connector *connector) | |
| 65 | { | |
| 66 | struct mxsfb_drm_private *mxsfb = | |
| 67 | drm_connector_to_mxsfb_drm_private(connector); | |
| 68 | ||
| 69 | if (mxsfb->panel) | |
| 70 | drm_panel_detach(mxsfb->panel); | |
| 71 | ||
| 72 | drm_connector_unregister(connector); | |
| 73 | drm_connector_cleanup(connector); | |
| 74 | } | |
| 75 | ||
| 76 | static const struct drm_connector_funcs mxsfb_panel_connector_funcs = { | |
| 45d59d70 MV |
77 | .detect = mxsfb_panel_connector_detect, |
| 78 | .fill_modes = drm_helper_probe_single_connector_modes, | |
| 79 | .destroy = mxsfb_panel_connector_destroy, | |
| 80 | .reset = drm_atomic_helper_connector_reset, | |
| 81 | .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, | |
| 82 | .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, | |
| 83 | }; | |
| 84 | ||
| ebc94461 | 85 | int mxsfb_create_output(struct drm_device *drm) |
| 45d59d70 MV |
86 | { |
| 87 | struct mxsfb_drm_private *mxsfb = drm->dev_private; | |
| 45d59d70 | 88 | struct drm_panel *panel; |
| ebc94461 | 89 | int ret; |
| 45d59d70 | 90 | |
| ebc94461 RH |
91 | ret = drm_of_find_panel_or_bridge(drm->dev->of_node, 0, 0, &panel, NULL); |
| 92 | if (ret) | |
| 93 | return ret; | |
| 45d59d70 MV |
94 | |
| 95 | mxsfb->connector.dpms = DRM_MODE_DPMS_OFF; | |
| 96 | mxsfb->connector.polled = 0; | |
| 97 | drm_connector_helper_add(&mxsfb->connector, | |
| 98 | &mxsfb_panel_connector_helper_funcs); | |
| 99 | ret = drm_connector_init(drm, &mxsfb->connector, | |
| 100 | &mxsfb_panel_connector_funcs, | |
| 101 | DRM_MODE_CONNECTOR_Unknown); | |
| 102 | if (!ret) | |
| 103 | mxsfb->panel = panel; | |
| 104 | ||
| 105 | return ret; | |
| 106 | } |