drm/aspeed/aspeed_gfx_out.c

0001 // SPDX-License-Identifier: GPL-2.0+
0002 // Copyright 2018 IBM Corporation
0003
0004 #include <drm/drm_atomic_helper.h>
0005 #include <drm/drm_connector.h>
0006 #include <drm/drm_crtc_helper.h>
0007 #include <drm/drm_edid.h>
0008 #include <drm/drm_probe_helper.h>
0009
0010 #include "aspeed_gfx.h"
0011
0012 static int aspeed_gfx_get_modes(struct drm_connector *connector)
0013 {
0014     return drm_add_modes_noedid(connector, 800, 600);
0015 }
0016
0017 static const struct
0018 drm_connector_helper_funcs aspeed_gfx_connector_helper_funcs = {
0019     .get_modes = aspeed_gfx_get_modes,
0020 };
0021
0022 static const struct drm_connector_funcs aspeed_gfx_connector_funcs = {
0023     .fill_modes     = drm_helper_probe_single_connector_modes,
0024     .destroy        = drm_connector_cleanup,
0025     .reset          = drm_atomic_helper_connector_reset,
0026     .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
0027     .atomic_destroy_state   = drm_atomic_helper_connector_destroy_state,
0028 };
0029
0030 int aspeed_gfx_create_output(struct drm_device *drm)
0031 {
0032     struct aspeed_gfx *priv = to_aspeed_gfx(drm);
0033     int ret;
0034
0035     priv->connector.dpms = DRM_MODE_DPMS_OFF;
0036     priv->connector.polled = 0;
0037     drm_connector_helper_add(&priv->connector,
0038                  &aspeed_gfx_connector_helper_funcs);
0039     ret = drm_connector_init(drm, &priv->connector,
0040                  &aspeed_gfx_connector_funcs,
0041                  DRM_MODE_CONNECTOR_Unknown);
0042     return ret;
0043 }