| /* |
| * rcar_du_lvdscon.c -- R-Car Display Unit LVDS Connector |
| * |
| * Copyright (C) 2013 Renesas Corporation |
| * |
| * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| */ |
| |
| #include <drm/drmP.h> |
| #include <drm/drm_crtc.h> |
| #include <drm/drm_crtc_helper.h> |
| |
| #include "rcar_du_drv.h" |
| #include "rcar_du_kms.h" |
| #include "rcar_du_lvdscon.h" |
| |
| struct rcar_du_lvds_connector { |
| struct rcar_du_connector connector; |
| |
| const struct rcar_du_panel_data *panel; |
| }; |
| |
| #define to_rcar_lvds_connector(c) \ |
| container_of(c, struct rcar_du_lvds_connector, connector.connector) |
| |
| static int rcar_du_lvds_connector_get_modes(struct drm_connector *connector) |
| { |
| struct rcar_du_lvds_connector *lvdscon = |
| to_rcar_lvds_connector(connector); |
| struct drm_display_mode *mode; |
| |
| mode = drm_mode_create(connector->dev); |
| if (mode == NULL) |
| return 0; |
| |
| mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER; |
| mode->clock = lvdscon->panel->mode.clock; |
| mode->hdisplay = lvdscon->panel->mode.hdisplay; |
| mode->hsync_start = lvdscon->panel->mode.hsync_start; |
| mode->hsync_end = lvdscon->panel->mode.hsync_end; |
| mode->htotal = lvdscon->panel->mode.htotal; |
| mode->vdisplay = lvdscon->panel->mode.vdisplay; |
| mode->vsync_start = lvdscon->panel->mode.vsync_start; |
| mode->vsync_end = lvdscon->panel->mode.vsync_end; |
| mode->vtotal = lvdscon->panel->mode.vtotal; |
| mode->flags = lvdscon->panel->mode.flags; |
| |
| drm_mode_set_name(mode); |
| drm_mode_probed_add(connector, mode); |
| |
| return 1; |
| } |
| |
| static int rcar_du_lvds_connector_mode_valid(struct drm_connector *connector, |
| struct drm_display_mode *mode) |
| { |
| return MODE_OK; |
| } |
| |
| static const struct drm_connector_helper_funcs connector_helper_funcs = { |
| .get_modes = rcar_du_lvds_connector_get_modes, |
| .mode_valid = rcar_du_lvds_connector_mode_valid, |
| .best_encoder = rcar_du_connector_best_encoder, |
| }; |
| |
| static void rcar_du_lvds_connector_destroy(struct drm_connector *connector) |
| { |
| drm_sysfs_connector_remove(connector); |
| drm_connector_cleanup(connector); |
| } |
| |
| static enum drm_connector_status |
| rcar_du_lvds_connector_detect(struct drm_connector *connector, bool force) |
| { |
| return connector_status_connected; |
| } |
| |
| static const struct drm_connector_funcs connector_funcs = { |
| .dpms = drm_helper_connector_dpms, |
| .detect = rcar_du_lvds_connector_detect, |
| .fill_modes = drm_helper_probe_single_connector_modes, |
| .destroy = rcar_du_lvds_connector_destroy, |
| }; |
| |
| int rcar_du_lvds_connector_init(struct rcar_du_device *rcdu, |
| struct rcar_du_encoder *renc, |
| const struct rcar_du_panel_data *panel) |
| { |
| struct rcar_du_lvds_connector *lvdscon; |
| struct drm_connector *connector; |
| int ret; |
| |
| lvdscon = devm_kzalloc(rcdu->dev, sizeof(*lvdscon), GFP_KERNEL); |
| if (lvdscon == NULL) |
| return -ENOMEM; |
| |
| lvdscon->panel = panel; |
| |
| connector = &lvdscon->connector.connector; |
| connector->display_info.width_mm = panel->width_mm; |
| connector->display_info.height_mm = panel->height_mm; |
| |
| ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs, |
| DRM_MODE_CONNECTOR_LVDS); |
| if (ret < 0) |
| return ret; |
| |
| drm_connector_helper_add(connector, &connector_helper_funcs); |
| ret = drm_sysfs_connector_add(connector); |
| if (ret < 0) |
| return ret; |
| |
| drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); |
| drm_object_property_set_value(&connector->base, |
| rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF); |
| |
| ret = drm_mode_connector_attach_encoder(connector, &renc->encoder); |
| if (ret < 0) |
| return ret; |
| |
| connector->encoder = &renc->encoder; |
| lvdscon->connector.encoder = renc; |
| |
| return 0; |
| } |