fbdev/cirrusfb: Rewrite Zorro graphics card probing

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As indicated by commit a7f4d00a82 ("zorro:
Defer device_register() until all devices have been identified"), cirrusfb
crashes if zorro_find_device() cannot find an expected device.

Rewrite the Zorro device probe code to make it more robust, easier to
understand, and more extensible.

Other logical changes:
  - For cards that show up as 2 Zorro devices, autoprobe graphics memory
    sizes based on the size of the Zorro device containing the graphics
    memory.
    Acording to the NetBSD sources, this is safe.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>

...

This commit is contained in:

Geert Uytterhoeven 2011-10-20 13:42:23 +02:00 • committed by Florian Tobias Schandinat

parent 38eb6863ed

commit 0e0d13364b

1 changed files with 118 additions and 123 deletions

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drivers/video/cirrusfb.c

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