1/* 2 * rcar_du_vgacon.c -- R-Car Display Unit VGA Connector 3 * 4 * Copyright (C) 2013-2014 Renesas Electronics Corporation 5 * 6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 */ 13 14#include <drm/drmP.h> 15#include <drm/drm_crtc.h> 16#include <drm/drm_crtc_helper.h> 17 18#include "rcar_du_drv.h" 19#include "rcar_du_encoder.h" 20#include "rcar_du_kms.h" 21#include "rcar_du_vgacon.h" 22 23static int rcar_du_vga_connector_get_modes(struct drm_connector *connector) 24{ 25 return 0; 26} 27 28static const struct drm_connector_helper_funcs connector_helper_funcs = { 29 .get_modes = rcar_du_vga_connector_get_modes, 30 .best_encoder = rcar_du_connector_best_encoder, 31}; 32 33static void rcar_du_vga_connector_destroy(struct drm_connector *connector) 34{ 35 drm_connector_unregister(connector); 36 drm_connector_cleanup(connector); 37} 38 39static enum drm_connector_status 40rcar_du_vga_connector_detect(struct drm_connector *connector, bool force) 41{ 42 return connector_status_connected; 43} 44 45static const struct drm_connector_funcs connector_funcs = { 46 .dpms = drm_helper_connector_dpms, 47 .detect = rcar_du_vga_connector_detect, 48 .fill_modes = drm_helper_probe_single_connector_modes, 49 .destroy = rcar_du_vga_connector_destroy, 50}; 51 52int rcar_du_vga_connector_init(struct rcar_du_device *rcdu, 53 struct rcar_du_encoder *renc) 54{ 55 struct rcar_du_connector *rcon; 56 struct drm_connector *connector; 57 int ret; 58 59 rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL); 60 if (rcon == NULL) 61 return -ENOMEM; 62 63 connector = &rcon->connector; 64 connector->display_info.width_mm = 0; 65 connector->display_info.height_mm = 0; 66 67 ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs, 68 DRM_MODE_CONNECTOR_VGA); 69 if (ret < 0) 70 return ret; 71 72 drm_connector_helper_add(connector, &connector_helper_funcs); 73 ret = drm_connector_register(connector); 74 if (ret < 0) 75 return ret; 76 77 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); 78 drm_object_property_set_value(&connector->base, 79 rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF); 80 81 ret = drm_mode_connector_attach_encoder(connector, &renc->encoder); 82 if (ret < 0) 83 return ret; 84 85 connector->encoder = &renc->encoder; 86 rcon->encoder = renc; 87 88 return 0; 89} 90