1 /* 2 * Copyright (C) 2012 Avionic Design GmbH 3 * Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 */ 9 10 #include "drm.h" 11 12 static void tegra_drm_fb_output_poll_changed(struct drm_device *drm) 13 { 14 struct host1x *host1x = drm->dev_private; 15 16 drm_fbdev_cma_hotplug_event(host1x->fbdev); 17 } 18 19 static const struct drm_mode_config_funcs tegra_drm_mode_funcs = { 20 .fb_create = drm_fb_cma_create, 21 .output_poll_changed = tegra_drm_fb_output_poll_changed, 22 }; 23 24 int tegra_drm_fb_init(struct drm_device *drm) 25 { 26 struct host1x *host1x = drm->dev_private; 27 struct drm_fbdev_cma *fbdev; 28 29 drm->mode_config.min_width = 0; 30 drm->mode_config.min_height = 0; 31 32 drm->mode_config.max_width = 4096; 33 drm->mode_config.max_height = 4096; 34 35 drm->mode_config.funcs = &tegra_drm_mode_funcs; 36 37 fbdev = drm_fbdev_cma_init(drm, 32, drm->mode_config.num_crtc, 38 drm->mode_config.num_connector); 39 if (IS_ERR(fbdev)) 40 return PTR_ERR(fbdev); 41 42 #ifndef CONFIG_FRAMEBUFFER_CONSOLE 43 drm_fbdev_cma_restore_mode(fbdev); 44 #endif 45 46 host1x->fbdev = fbdev; 47 48 return 0; 49 } 50 51 void tegra_drm_fb_exit(struct drm_device *drm) 52 { 53 struct host1x *host1x = drm->dev_private; 54 55 drm_fbdev_cma_fini(host1x->fbdev); 56 } 57