Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 1 | /* |
Rob Clark | 8bb0daf | 2013-02-11 12:43:09 -0500 | [diff] [blame] | 2 | * drivers/gpu/drm/omapdrm/omap_fbdev.c |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 2011 Texas Instruments |
| 5 | * Author: Rob Clark <rob@ti.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of the GNU General Public License version 2 as published by |
| 9 | * the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 14 | * more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License along with |
| 17 | * this program. If not, see <http://www.gnu.org/licenses/>. |
| 18 | */ |
| 19 | |
| 20 | #include "omap_drv.h" |
| 21 | |
| 22 | #include "drm_crtc.h" |
| 23 | #include "drm_fb_helper.h" |
| 24 | |
Rob Clark | 510d4d3 | 2011-12-15 21:05:15 -0600 | [diff] [blame] | 25 | MODULE_PARM_DESC(ywrap, "Enable ywrap scrolling (omap44xx and later, default 'y')"); |
| 26 | static bool ywrap_enabled = true; |
| 27 | module_param_named(ywrap, ywrap_enabled, bool, 0644); |
| 28 | |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 29 | /* |
| 30 | * fbdev funcs, to implement legacy fbdev interface on top of drm driver |
| 31 | */ |
| 32 | |
| 33 | #define to_omap_fbdev(x) container_of(x, struct omap_fbdev, base) |
| 34 | |
| 35 | struct omap_fbdev { |
| 36 | struct drm_fb_helper base; |
| 37 | struct drm_framebuffer *fb; |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 38 | struct drm_gem_object *bo; |
Rob Clark | 510d4d3 | 2011-12-15 21:05:15 -0600 | [diff] [blame] | 39 | bool ywrap_enabled; |
Rob Clark | 9b55b95 | 2012-03-05 10:48:33 -0600 | [diff] [blame] | 40 | |
| 41 | /* for deferred dmm roll when getting called in atomic ctx */ |
| 42 | struct work_struct work; |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 43 | }; |
| 44 | |
| 45 | static void omap_fbdev_flush(struct fb_info *fbi, int x, int y, int w, int h); |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 46 | static struct drm_fb_helper *get_fb(struct fb_info *fbi); |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 47 | |
| 48 | static ssize_t omap_fbdev_write(struct fb_info *fbi, const char __user *buf, |
| 49 | size_t count, loff_t *ppos) |
| 50 | { |
| 51 | ssize_t res; |
| 52 | |
| 53 | res = fb_sys_write(fbi, buf, count, ppos); |
| 54 | omap_fbdev_flush(fbi, 0, 0, fbi->var.xres, fbi->var.yres); |
| 55 | |
| 56 | return res; |
| 57 | } |
| 58 | |
| 59 | static void omap_fbdev_fillrect(struct fb_info *fbi, |
| 60 | const struct fb_fillrect *rect) |
| 61 | { |
| 62 | sys_fillrect(fbi, rect); |
| 63 | omap_fbdev_flush(fbi, rect->dx, rect->dy, rect->width, rect->height); |
| 64 | } |
| 65 | |
| 66 | static void omap_fbdev_copyarea(struct fb_info *fbi, |
| 67 | const struct fb_copyarea *area) |
| 68 | { |
| 69 | sys_copyarea(fbi, area); |
| 70 | omap_fbdev_flush(fbi, area->dx, area->dy, area->width, area->height); |
| 71 | } |
| 72 | |
| 73 | static void omap_fbdev_imageblit(struct fb_info *fbi, |
| 74 | const struct fb_image *image) |
| 75 | { |
| 76 | sys_imageblit(fbi, image); |
| 77 | omap_fbdev_flush(fbi, image->dx, image->dy, |
| 78 | image->width, image->height); |
| 79 | } |
| 80 | |
Rob Clark | 9b55b95 | 2012-03-05 10:48:33 -0600 | [diff] [blame] | 81 | static void pan_worker(struct work_struct *work) |
| 82 | { |
| 83 | struct omap_fbdev *fbdev = container_of(work, struct omap_fbdev, work); |
| 84 | struct fb_info *fbi = fbdev->base.fbdev; |
| 85 | int npages; |
| 86 | |
| 87 | /* DMM roll shifts in 4K pages: */ |
| 88 | npages = fbi->fix.line_length >> PAGE_SHIFT; |
| 89 | omap_gem_roll(fbdev->bo, fbi->var.yoffset * npages); |
| 90 | } |
| 91 | |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 92 | static int omap_fbdev_pan_display(struct fb_var_screeninfo *var, |
| 93 | struct fb_info *fbi) |
| 94 | { |
| 95 | struct drm_fb_helper *helper = get_fb(fbi); |
| 96 | struct omap_fbdev *fbdev = to_omap_fbdev(helper); |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 97 | |
| 98 | if (!helper) |
| 99 | goto fallback; |
| 100 | |
Rob Clark | 510d4d3 | 2011-12-15 21:05:15 -0600 | [diff] [blame] | 101 | if (!fbdev->ywrap_enabled) |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 102 | goto fallback; |
| 103 | |
Rob Clark | 9b55b95 | 2012-03-05 10:48:33 -0600 | [diff] [blame] | 104 | if (drm_can_sleep()) { |
| 105 | pan_worker(&fbdev->work); |
| 106 | } else { |
| 107 | struct omap_drm_private *priv = helper->dev->dev_private; |
| 108 | queue_work(priv->wq, &fbdev->work); |
| 109 | } |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 110 | |
| 111 | return 0; |
| 112 | |
| 113 | fallback: |
| 114 | return drm_fb_helper_pan_display(var, fbi); |
| 115 | } |
| 116 | |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 117 | static struct fb_ops omap_fb_ops = { |
| 118 | .owner = THIS_MODULE, |
| 119 | |
| 120 | /* Note: to properly handle manual update displays, we wrap the |
| 121 | * basic fbdev ops which write to the framebuffer |
| 122 | */ |
| 123 | .fb_read = fb_sys_read, |
| 124 | .fb_write = omap_fbdev_write, |
| 125 | .fb_fillrect = omap_fbdev_fillrect, |
| 126 | .fb_copyarea = omap_fbdev_copyarea, |
| 127 | .fb_imageblit = omap_fbdev_imageblit, |
| 128 | |
| 129 | .fb_check_var = drm_fb_helper_check_var, |
| 130 | .fb_set_par = drm_fb_helper_set_par, |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 131 | .fb_pan_display = omap_fbdev_pan_display, |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 132 | .fb_blank = drm_fb_helper_blank, |
| 133 | .fb_setcmap = drm_fb_helper_setcmap, |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 134 | }; |
| 135 | |
| 136 | static int omap_fbdev_create(struct drm_fb_helper *helper, |
| 137 | struct drm_fb_helper_surface_size *sizes) |
| 138 | { |
| 139 | struct omap_fbdev *fbdev = to_omap_fbdev(helper); |
| 140 | struct drm_device *dev = helper->dev; |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 141 | struct omap_drm_private *priv = dev->dev_private; |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 142 | struct drm_framebuffer *fb = NULL; |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 143 | union omap_gem_size gsize; |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 144 | struct fb_info *fbi = NULL; |
Rob Clark | ae43d7c | 2012-01-16 12:51:15 -0600 | [diff] [blame] | 145 | struct drm_mode_fb_cmd2 mode_cmd = {0}; |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 146 | dma_addr_t paddr; |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 147 | int ret; |
| 148 | |
| 149 | /* only doing ARGB32 since this is what is needed to alpha-blend |
| 150 | * with video overlays: |
| 151 | */ |
| 152 | sizes->surface_bpp = 32; |
| 153 | sizes->surface_depth = 32; |
| 154 | |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 155 | DBG("create fbdev: %dx%d@%d (%dx%d)", sizes->surface_width, |
| 156 | sizes->surface_height, sizes->surface_bpp, |
| 157 | sizes->fb_width, sizes->fb_height); |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 158 | |
Rob Clark | ae43d7c | 2012-01-16 12:51:15 -0600 | [diff] [blame] | 159 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, |
| 160 | sizes->surface_depth); |
| 161 | |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 162 | mode_cmd.width = sizes->surface_width; |
| 163 | mode_cmd.height = sizes->surface_height; |
| 164 | |
Rob Clark | ae43d7c | 2012-01-16 12:51:15 -0600 | [diff] [blame] | 165 | mode_cmd.pitches[0] = align_pitch( |
| 166 | mode_cmd.width * ((sizes->surface_bpp + 7) / 8), |
| 167 | mode_cmd.width, sizes->surface_bpp); |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 168 | |
Rob Clark | 510d4d3 | 2011-12-15 21:05:15 -0600 | [diff] [blame] | 169 | fbdev->ywrap_enabled = priv->has_dmm && ywrap_enabled; |
| 170 | if (fbdev->ywrap_enabled) { |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 171 | /* need to align pitch to page size if using DMM scrolling */ |
Rob Clark | ae43d7c | 2012-01-16 12:51:15 -0600 | [diff] [blame] | 172 | mode_cmd.pitches[0] = ALIGN(mode_cmd.pitches[0], PAGE_SIZE); |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 173 | } |
| 174 | |
| 175 | /* allocate backing bo */ |
| 176 | gsize = (union omap_gem_size){ |
Rob Clark | ae43d7c | 2012-01-16 12:51:15 -0600 | [diff] [blame] | 177 | .bytes = PAGE_ALIGN(mode_cmd.pitches[0] * mode_cmd.height), |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 178 | }; |
| 179 | DBG("allocating %d bytes for fb %d", gsize.bytes, dev->primary->index); |
| 180 | fbdev->bo = omap_gem_new(dev, gsize, OMAP_BO_SCANOUT | OMAP_BO_WC); |
| 181 | if (!fbdev->bo) { |
| 182 | dev_err(dev->dev, "failed to allocate buffer object\n"); |
Rob Clark | ae43d7c | 2012-01-16 12:51:15 -0600 | [diff] [blame] | 183 | ret = -ENOMEM; |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 184 | goto fail; |
| 185 | } |
| 186 | |
Rob Clark | ae43d7c | 2012-01-16 12:51:15 -0600 | [diff] [blame] | 187 | fb = omap_framebuffer_init(dev, &mode_cmd, &fbdev->bo); |
| 188 | if (IS_ERR(fb)) { |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 189 | dev_err(dev->dev, "failed to allocate fb\n"); |
Rob Clark | ae43d7c | 2012-01-16 12:51:15 -0600 | [diff] [blame] | 190 | /* note: if fb creation failed, we can't rely on fb destroy |
| 191 | * to unref the bo: |
| 192 | */ |
| 193 | drm_gem_object_unreference(fbdev->bo); |
| 194 | ret = PTR_ERR(fb); |
| 195 | goto fail; |
| 196 | } |
| 197 | |
| 198 | /* note: this keeps the bo pinned.. which is perhaps not ideal, |
| 199 | * but is needed as long as we use fb_mmap() to mmap to userspace |
| 200 | * (since this happens using fix.smem_start). Possibly we could |
| 201 | * implement our own mmap using GEM mmap support to avoid this |
| 202 | * (non-tiled buffer doesn't need to be pinned for fbcon to write |
| 203 | * to it). Then we just need to be sure that we are able to re- |
| 204 | * pin it in case of an opps. |
| 205 | */ |
| 206 | ret = omap_gem_get_paddr(fbdev->bo, &paddr, true); |
| 207 | if (ret) { |
Andy Gross | afb6a6a | 2012-05-24 11:44:22 -0500 | [diff] [blame] | 208 | dev_err(dev->dev, |
| 209 | "could not map (paddr)! Skipping framebuffer alloc\n"); |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 210 | ret = -ENOMEM; |
| 211 | goto fail; |
| 212 | } |
| 213 | |
| 214 | mutex_lock(&dev->struct_mutex); |
| 215 | |
| 216 | fbi = framebuffer_alloc(0, dev->dev); |
| 217 | if (!fbi) { |
| 218 | dev_err(dev->dev, "failed to allocate fb info\n"); |
| 219 | ret = -ENOMEM; |
| 220 | goto fail_unlock; |
| 221 | } |
| 222 | |
| 223 | DBG("fbi=%p, dev=%p", fbi, dev); |
| 224 | |
| 225 | fbdev->fb = fb; |
| 226 | helper->fb = fb; |
| 227 | helper->fbdev = fbi; |
| 228 | |
| 229 | fbi->par = helper; |
| 230 | fbi->flags = FBINFO_DEFAULT; |
| 231 | fbi->fbops = &omap_fb_ops; |
| 232 | |
| 233 | strcpy(fbi->fix.id, MODULE_NAME); |
| 234 | |
| 235 | ret = fb_alloc_cmap(&fbi->cmap, 256, 0); |
| 236 | if (ret) { |
| 237 | ret = -ENOMEM; |
| 238 | goto fail_unlock; |
| 239 | } |
| 240 | |
Rob Clark | ae43d7c | 2012-01-16 12:51:15 -0600 | [diff] [blame] | 241 | drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->depth); |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 242 | drm_fb_helper_fill_var(fbi, helper, sizes->fb_width, sizes->fb_height); |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 243 | |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 244 | dev->mode_config.fb_base = paddr; |
| 245 | |
Rob Clark | ae43d7c | 2012-01-16 12:51:15 -0600 | [diff] [blame] | 246 | fbi->screen_base = omap_gem_vaddr(fbdev->bo); |
| 247 | fbi->screen_size = fbdev->bo->size; |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 248 | fbi->fix.smem_start = paddr; |
Rob Clark | ae43d7c | 2012-01-16 12:51:15 -0600 | [diff] [blame] | 249 | fbi->fix.smem_len = fbdev->bo->size; |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 250 | |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 251 | /* if we have DMM, then we can use it for scrolling by just |
| 252 | * shuffling pages around in DMM rather than doing sw blit. |
| 253 | */ |
Rob Clark | 510d4d3 | 2011-12-15 21:05:15 -0600 | [diff] [blame] | 254 | if (fbdev->ywrap_enabled) { |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 255 | DRM_INFO("Enabling DMM ywrap scrolling\n"); |
| 256 | fbi->flags |= FBINFO_HWACCEL_YWRAP | FBINFO_READS_FAST; |
| 257 | fbi->fix.ywrapstep = 1; |
| 258 | } |
| 259 | |
Rob Clark | 510d4d3 | 2011-12-15 21:05:15 -0600 | [diff] [blame] | 260 | |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 261 | DBG("par=%p, %dx%d", fbi->par, fbi->var.xres, fbi->var.yres); |
| 262 | DBG("allocated %dx%d fb", fbdev->fb->width, fbdev->fb->height); |
| 263 | |
| 264 | mutex_unlock(&dev->struct_mutex); |
| 265 | |
| 266 | return 0; |
| 267 | |
| 268 | fail_unlock: |
| 269 | mutex_unlock(&dev->struct_mutex); |
| 270 | fail: |
| 271 | |
| 272 | if (ret) { |
| 273 | if (fbi) |
| 274 | framebuffer_release(fbi); |
Daniel Vetter | 3620636 | 2012-12-10 20:42:17 +0100 | [diff] [blame] | 275 | if (fb) { |
| 276 | drm_framebuffer_unregister_private(fb); |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 277 | drm_framebuffer_remove(fb); |
Daniel Vetter | 3620636 | 2012-12-10 20:42:17 +0100 | [diff] [blame] | 278 | } |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 279 | } |
| 280 | |
| 281 | return ret; |
| 282 | } |
| 283 | |
| 284 | static void omap_crtc_fb_gamma_set(struct drm_crtc *crtc, |
| 285 | u16 red, u16 green, u16 blue, int regno) |
| 286 | { |
| 287 | DBG("fbdev: set gamma"); |
| 288 | } |
| 289 | |
| 290 | static void omap_crtc_fb_gamma_get(struct drm_crtc *crtc, |
| 291 | u16 *red, u16 *green, u16 *blue, int regno) |
| 292 | { |
| 293 | DBG("fbdev: get gamma"); |
| 294 | } |
| 295 | |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 296 | static struct drm_fb_helper_funcs omap_fb_helper_funcs = { |
| 297 | .gamma_set = omap_crtc_fb_gamma_set, |
| 298 | .gamma_get = omap_crtc_fb_gamma_get, |
Daniel Vetter | cd5428a | 2013-01-21 23:42:49 +0100 | [diff] [blame] | 299 | .fb_probe = omap_fbdev_create, |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 300 | }; |
| 301 | |
| 302 | static struct drm_fb_helper *get_fb(struct fb_info *fbi) |
| 303 | { |
| 304 | if (!fbi || strcmp(fbi->fix.id, MODULE_NAME)) { |
| 305 | /* these are not the fb's you're looking for */ |
| 306 | return NULL; |
| 307 | } |
| 308 | return fbi->par; |
| 309 | } |
| 310 | |
| 311 | /* flush an area of the framebuffer (in case of manual update display that |
| 312 | * is not automatically flushed) |
| 313 | */ |
| 314 | static void omap_fbdev_flush(struct fb_info *fbi, int x, int y, int w, int h) |
| 315 | { |
| 316 | struct drm_fb_helper *helper = get_fb(fbi); |
| 317 | |
| 318 | if (!helper) |
| 319 | return; |
| 320 | |
| 321 | VERB("flush fbdev: %d,%d %dx%d, fbi=%p", x, y, w, h, fbi); |
| 322 | |
| 323 | omap_framebuffer_flush(helper->fb, x, y, w, h); |
| 324 | } |
| 325 | |
| 326 | /* initialize fbdev helper */ |
| 327 | struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev) |
| 328 | { |
| 329 | struct omap_drm_private *priv = dev->dev_private; |
| 330 | struct omap_fbdev *fbdev = NULL; |
| 331 | struct drm_fb_helper *helper; |
| 332 | int ret = 0; |
| 333 | |
| 334 | fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL); |
Joe Perches | 78110bb | 2013-02-11 09:41:29 -0800 | [diff] [blame] | 335 | if (!fbdev) |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 336 | goto fail; |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 337 | |
Rob Clark | 9b55b95 | 2012-03-05 10:48:33 -0600 | [diff] [blame] | 338 | INIT_WORK(&fbdev->work, pan_worker); |
| 339 | |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 340 | helper = &fbdev->base; |
| 341 | |
| 342 | helper->funcs = &omap_fb_helper_funcs; |
| 343 | |
| 344 | ret = drm_fb_helper_init(dev, helper, |
| 345 | priv->num_crtcs, priv->num_connectors); |
| 346 | if (ret) { |
| 347 | dev_err(dev->dev, "could not init fbdev: ret=%d\n", ret); |
| 348 | goto fail; |
| 349 | } |
| 350 | |
| 351 | drm_fb_helper_single_add_all_connectors(helper); |
Daniel Vetter | 76a39db | 2013-01-20 23:12:54 +0100 | [diff] [blame] | 352 | |
| 353 | /* disable all the possible outputs/crtcs before entering KMS mode */ |
| 354 | drm_helper_disable_unused_functions(dev); |
| 355 | |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 356 | drm_fb_helper_initial_config(helper, 32); |
| 357 | |
| 358 | priv->fbdev = helper; |
| 359 | |
| 360 | return helper; |
| 361 | |
| 362 | fail: |
| 363 | kfree(fbdev); |
| 364 | return NULL; |
| 365 | } |
| 366 | |
| 367 | void omap_fbdev_free(struct drm_device *dev) |
| 368 | { |
| 369 | struct omap_drm_private *priv = dev->dev_private; |
| 370 | struct drm_fb_helper *helper = priv->fbdev; |
| 371 | struct omap_fbdev *fbdev; |
| 372 | struct fb_info *fbi; |
| 373 | |
| 374 | DBG(); |
| 375 | |
| 376 | fbi = helper->fbdev; |
| 377 | |
Andy Gross | afb6a6a | 2012-05-24 11:44:22 -0500 | [diff] [blame] | 378 | /* only cleanup framebuffer if it is present */ |
| 379 | if (fbi) { |
| 380 | unregister_framebuffer(fbi); |
| 381 | framebuffer_release(fbi); |
| 382 | } |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 383 | |
| 384 | drm_fb_helper_fini(helper); |
| 385 | |
| 386 | fbdev = to_omap_fbdev(priv->fbdev); |
| 387 | |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 388 | /* this will free the backing object */ |
Daniel Vetter | 3620636 | 2012-12-10 20:42:17 +0100 | [diff] [blame] | 389 | if (fbdev->fb) { |
| 390 | drm_framebuffer_unregister_private(fbdev->fb); |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 391 | drm_framebuffer_remove(fbdev->fb); |
Daniel Vetter | 3620636 | 2012-12-10 20:42:17 +0100 | [diff] [blame] | 392 | } |
Rob Clark | a6a9182 | 2011-12-09 23:26:08 -0600 | [diff] [blame] | 393 | |
Julia Lawall | a9e8d70 | 2012-01-09 08:51:03 +0100 | [diff] [blame] | 394 | kfree(fbdev); |
| 395 | |
Rob Clark | cd5351f | 2011-11-12 12:09:40 -0600 | [diff] [blame] | 396 | priv->fbdev = NULL; |
| 397 | } |