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fbdev: simplefb: mark as fw and allocate apertures

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fbdev-core uses FBINFO_MISC_FIRMWARE to mark drivers that use firmware
framebuffers. Furthermore, we now allocate apertures for the fbinfo
device.
Both information is used by remove_conflicting_framebuffers() to remove a
fbdev device whenever a real driver is loaded. This is used heavily on x86
for VGA/vesa/EFI framebuffers, but is also of great use for all other
systems.

Especially with x86 support for simplefb, this information is needed to
unload simplefb before a real hw-driver (like i915, radeon, nouveau) is
loaded.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Link: http://lkml.kernel.org/r/1375445127-15480-3-git-send-email-dh.herrmann@gmail.com
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
David Herrmann 2013-08-02 14:05:21 +02:00 committed by H. Peter Anvin
parent 5ef76da644
commit df0960ab2d
1 changed files with 9 additions and 1 deletions
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10
drivers/video/simplefb.c
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@ -202,8 +202,16 @@ static int simplefb_probe(struct platform_device *pdev)
info->var.blue = params.format->blue;
info->var.transp = params.format->transp;
info->apertures = alloc_apertures(1);
if (!info->apertures) {
framebuffer_release(info);
return -ENOMEM;
}
info->apertures->ranges[0].base = info->fix.smem_start;
info->apertures->ranges[0].size = info->fix.smem_len;
info->fbops = &simplefb_ops;
info->flags = FBINFO_DEFAULT;
info->flags = FBINFO_DEFAULT | FBINFO_MISC_FIRMWARE;
info->screen_base = devm_ioremap(&pdev->dev, info->fix.smem_start,
info->fix.smem_len);
if (!info->screen_base) {