diff options
Diffstat (limited to 'drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c')
| -rw-r--r-- | drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c new file mode 100644 index 000000000000..4f3ba93cd91d --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c @@ -0,0 +1,131 @@ +/* + * 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_encoder.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; +} |