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SubjectRe: [PATCH] Add base_hi BAR for oxsemi_840
* Andrew Morton <akpm@linux-foundation.org> [2008-07-01 15:00]:
> >
> > --- a/drivers/parport/parport_pc.c
> > +++ b/drivers/parport/parport_pc.c
> > @@ -2877,7 +2877,7 @@ static struct parport_pc_pci {
> > * and 840 locks up if you write 1 to bit 2! */
> > /* oxsemi_952 */ { 1, { { 0, 1 }, } },
> > /* oxsemi_954 */ { 1, { { 0, -1 }, } },
> > - /* oxsemi_840 */ { 1, { { 0, -1 }, } },
> > + /* oxsemi_840 */ { 1, { { 0, 1 }, } },
> > /* aks_0100 */ { 1, { { 0, -1 }, } },
> > /* mobility_pp */ { 1, { { 0, 1 }, } },
> > /* netmos_9705 */ { 1, { { 0, -1 }, } }, /* untested */
>
> My parport knowledge doesn't permit me to understand how serious the
> just-fixed bug was. Non-functional parport?
>
> If so, this looks like a 2.6.26 and 2.6.25.x fix?

No, for good old printers, everything works. It's just that ECR
register was not available (the base_hi stuff). Because of that,
the TRISTATE detection did not work, which meant that for me my
self-built logic analyzer which uses the parallel port did not work.

Just merge in 2.6.27 is enough. :)


Bernhard
--
Bernhard Walle, SUSE LINUX Products GmbH, Architecture Development


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