offb: Add support for framebuffer handoff to offb.
This allows offb to be used for initial framebuffer,
and a kms driver to take over later in the boot sequence.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/drivers/video/offb.c b/drivers/video/offb.c
index 4d8c54c..b043ac8 100644
--- a/drivers/video/offb.c
+++ b/drivers/video/offb.c
@@ -282,8 +282,17 @@
return 0;
}
+static void offb_destroy(struct fb_info *info)
+{
+ if (info->screen_base)
+ iounmap(info->screen_base);
+ release_mem_region(info->aperture_base, info->aperture_size);
+ framebuffer_release(info);
+}
+
static struct fb_ops offb_ops = {
.owner = THIS_MODULE,
+ .fb_destroy = offb_destroy,
.fb_setcolreg = offb_setcolreg,
.fb_set_par = offb_set_par,
.fb_blank = offb_blank,
@@ -482,10 +491,14 @@
var->sync = 0;
var->vmode = FB_VMODE_NONINTERLACED;
+ /* set offb aperture size for generic probing */
+ info->aperture_base = address;
+ info->aperture_size = fix->smem_len;
+
info->fbops = &offb_ops;
info->screen_base = ioremap(address, fix->smem_len);
info->pseudo_palette = (void *) (info + 1);
- info->flags = FBINFO_DEFAULT | foreign_endian;
+ info->flags = FBINFO_DEFAULT | FBINFO_MISC_FIRMWARE | foreign_endian;
fb_alloc_cmap(&info->cmap, 256, 0);