forked from Minki/linux
34ea3d3863
Introduce generic functions to register and unregister connectors. This provides a common place to add and remove associated user space interfaces. Signed-off-by: Thomas Wood <thomas.wood@intel.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
125 lines
3.5 KiB
C
125 lines
3.5 KiB
C
/*
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* rcar_du_lvdscon.c -- R-Car Display Unit LVDS Connector
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*
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* Copyright (C) 2013 Renesas Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <drm/drmP.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_crtc_helper.h>
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#include "rcar_du_drv.h"
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#include "rcar_du_encoder.h"
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#include "rcar_du_kms.h"
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#include "rcar_du_lvdscon.h"
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struct rcar_du_lvds_connector {
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struct rcar_du_connector connector;
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const struct rcar_du_panel_data *panel;
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};
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#define to_rcar_lvds_connector(c) \
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container_of(c, struct rcar_du_lvds_connector, connector.connector)
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static int rcar_du_lvds_connector_get_modes(struct drm_connector *connector)
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{
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struct rcar_du_lvds_connector *lvdscon =
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to_rcar_lvds_connector(connector);
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struct drm_display_mode *mode;
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mode = drm_mode_create(connector->dev);
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if (mode == NULL)
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return 0;
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mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
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mode->clock = lvdscon->panel->mode.clock;
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mode->hdisplay = lvdscon->panel->mode.hdisplay;
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mode->hsync_start = lvdscon->panel->mode.hsync_start;
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mode->hsync_end = lvdscon->panel->mode.hsync_end;
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mode->htotal = lvdscon->panel->mode.htotal;
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mode->vdisplay = lvdscon->panel->mode.vdisplay;
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mode->vsync_start = lvdscon->panel->mode.vsync_start;
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mode->vsync_end = lvdscon->panel->mode.vsync_end;
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mode->vtotal = lvdscon->panel->mode.vtotal;
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mode->flags = lvdscon->panel->mode.flags;
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drm_mode_set_name(mode);
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drm_mode_probed_add(connector, mode);
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return 1;
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}
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static const struct drm_connector_helper_funcs connector_helper_funcs = {
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.get_modes = rcar_du_lvds_connector_get_modes,
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.best_encoder = rcar_du_connector_best_encoder,
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};
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static void rcar_du_lvds_connector_destroy(struct drm_connector *connector)
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{
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drm_connector_unregister(connector);
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drm_connector_cleanup(connector);
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}
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static enum drm_connector_status
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rcar_du_lvds_connector_detect(struct drm_connector *connector, bool force)
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{
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return connector_status_connected;
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}
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static const struct drm_connector_funcs connector_funcs = {
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.dpms = drm_helper_connector_dpms,
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.detect = rcar_du_lvds_connector_detect,
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.fill_modes = drm_helper_probe_single_connector_modes,
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.destroy = rcar_du_lvds_connector_destroy,
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};
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int rcar_du_lvds_connector_init(struct rcar_du_device *rcdu,
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struct rcar_du_encoder *renc,
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const struct rcar_du_panel_data *panel)
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{
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struct rcar_du_lvds_connector *lvdscon;
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struct drm_connector *connector;
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int ret;
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lvdscon = devm_kzalloc(rcdu->dev, sizeof(*lvdscon), GFP_KERNEL);
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if (lvdscon == NULL)
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return -ENOMEM;
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lvdscon->panel = panel;
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connector = &lvdscon->connector.connector;
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connector->display_info.width_mm = panel->width_mm;
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connector->display_info.height_mm = panel->height_mm;
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ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
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DRM_MODE_CONNECTOR_LVDS);
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if (ret < 0)
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return ret;
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drm_connector_helper_add(connector, &connector_helper_funcs);
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ret = drm_connector_register(connector);
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if (ret < 0)
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return ret;
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drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
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drm_object_property_set_value(&connector->base,
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rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
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ret = drm_mode_connector_attach_encoder(connector, &renc->encoder);
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if (ret < 0)
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return ret;
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connector->encoder = &renc->encoder;
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lvdscon->connector.encoder = renc;
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return 0;
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}
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