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>
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@ -282,8 +282,17 @@ static int offb_set_par(struct fb_info *info)
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return 0;
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}
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static void offb_destroy(struct fb_info *info)
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{
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if (info->screen_base)
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iounmap(info->screen_base);
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release_mem_region(info->aperture_base, info->aperture_size);
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framebuffer_release(info);
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}
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static struct fb_ops offb_ops = {
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.owner = THIS_MODULE,
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.fb_destroy = offb_destroy,
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.fb_setcolreg = offb_setcolreg,
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.fb_set_par = offb_set_par,
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.fb_blank = offb_blank,
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@ -482,10 +491,14 @@ static void __init offb_init_fb(const char *name, const char *full_name,
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var->sync = 0;
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var->vmode = FB_VMODE_NONINTERLACED;
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/* set offb aperture size for generic probing */
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info->aperture_base = address;
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info->aperture_size = fix->smem_len;
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info->fbops = &offb_ops;
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info->screen_base = ioremap(address, fix->smem_len);
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info->pseudo_palette = (void *) (info + 1);
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info->flags = FBINFO_DEFAULT | foreign_endian;
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info->flags = FBINFO_DEFAULT | FBINFO_MISC_FIRMWARE | foreign_endian;
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fb_alloc_cmap(&info->cmap, 256, 0);
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