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parport: Use request_muxed_region for IT87 probe and lock 

This is needed as part of making the various IT87 drivers actually co-exist
politely with each other, and with other superio devices that may be muxed
on 0x2E/0x2F.

It can be applied before or after the other patches by Nat Gurumoorthy without
problem.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox 2011-05-04 10:18:42 +01:00 committed by Greg Kroah-Hartman
parent 61ec901698
commit 868d1721a2
1 changed files with 1 additions and 1 deletions
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2
drivers/parport/parport_pc.c
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@ -1621,7 +1621,7 @@ static void __devinit detect_and_report_it87(void)
u8 origval, r;
if (verbose_probing)
printk(KERN_DEBUG "IT8705 Super-IO detection, now testing port 2E ...\n");
if (!request_region(0x2e, 2, __func__))
if (!request_muxed_region(0x2e, 2, __func__))
return;
origval = inb(0x2e); /* Save original value */
outb(0x87, 0x2e);