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fbdev: detect primary display device

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Add function helper, fb_is_primary_device().  Given struct fb_info, it will
return a nonzero value if the device is the primary display.

Currently, only the i386 is supported where the function checks for the
IORESOURCE_ROM_SHADOW flag.

Signed-off-by: Antonino Daplas <[email protected]>
Cc: David Miller <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Antonino A. Daplas 2007-07-17 04:05:28 -07:00 • committed by Linus Torvalds
commit 317b3c2167
27 changed files with 177 additions and 1 deletions
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6
include/asm-xtensa/fb.h
View file

@ -1,6 +1,12 @@
#ifndef _ASM_FB_H_
#define _ASM_FB_H_
#include <linux/fb.h>
#define fb_pgprotect(...) do {} while (0)
static inline int fb_is_primary_device(struct fb_info *info)
{
return 0;
}
#endif /* _ASM_FB_H_ */