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Commit ceae8cbe authored by Dave Airlie's avatar Dave Airlie Committed by Benjamin Herrenschmidt
Browse files

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: default avatarDave Airlie <airlied@redhat.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 88358ab0

drivers/video/offb.c

+14 −1
Original line number Diff line number Diff line
@@ -282,8 +282,17 @@ static int offb_set_par(struct fb_info *info) 
	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 @@ static void __init offb_init_fb(const char *name, const char *full_name, 
	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);