[PATCH RESEND 2/8] fbdev: simplefb: mark as fw and allocate apertures

From: David Herrmann
Date: Fri Aug 02 2013 - 08:08:43 EST

fbdev-core uses FBINFO_MISC_FIRMWARE to mark drivers that use firmware
framebuffers. Furthermore, we now allocate apertures for the fbinfo
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

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

Signed-off-by: David Herrmann <dh.herrmann@xxxxxxxxx>
Tested-by: Stephen Warren <swarren@xxxxxxxxxx>
drivers/video/simplefb.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c
index 5886989..8d78106 100644
--- a/drivers/video/simplefb.c
+++ b/drivers/video/simplefb.c
@@ -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->screen_base = devm_ioremap(&pdev->dev, info->fix.smem_start,
if (!info->screen_base) {

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