[RFC and PATCH] Move the m68k genrtc driver into 2.5 and use on PPC
trini at kernel.crashing.org
Fri Jun 14 10:27:31 EST 2002
On Fri, Jun 14, 2002 at 12:31:43AM +0200, Richard Zidlicky wrote:
> On Thu, Jun 13, 2002 at 12:06:46PM -0700, Tom Rini wrote:
> > Secondly to the m68k people, does anyone have an objection (or would
> > like to do it themselves?) with me trying to get Linus to take the
> > changes to include/linux/rtc.h? radeonfb.c currently conflicts with the
> > 'pll_info' struct, but Ani Joshi is renaming it.
> I will be happy whoever gets it in. The pll_info stuff could be
> renamed in genrtc.c as well.
It could... But I imagine it'll be fun getting that in either way. :)
> > Also, CONFIG_GEN_RTC
> > used to be define_bool'ed to y on CONFIG_SUN3, but I'm not sure if that
> > looks nice in a common file. Any idea on how to solve this nicely?
> m68k doesn't source drivers/chars/Config.in so just don't do
> anything about it?
Ah, it doesn't? I suppose that will work too.. :)
> > diff -Nru a/drivers/char/Config.help b/drivers/char/Config.help
> > --- a/drivers/char/Config.help Thu Jun 13 12:03:49 2002
> > +++ b/drivers/char/Config.help Thu Jun 13 12:03:49 2002
> > @@ -1058,6 +1058,34 @@
> > The module is called rtc.o. If you want to compile it as a module,
> > say M here and read <file:Documentation/modules.txt>.
> > +Generic Real Time Clock Support
> > +CONFIG_GEN_RTC
> > + If you say Y here and create a character special file /dev/rtc with
> > + major number 10 and minor number 135 using mknod ("man mknod"), you
> > + will get access to the real time clock (or hardware clock) built
> > + into your computer.
> > +
> > + In 2.4 and later kernels this is the only way to set and get rtc
> > + time on m68k systems so it is highly recommended.
> > +
> > + It reports status information via the file /proc/driver/rtc and its
> > + behaviour is set by various ioctls on /dev/rtc. If you enable the
> > + "extended RTC operation" below it will also provide an emulation
> > + for RTC_UIE which is required by some programs and may improve
> > + precision in some cases.
> > +
> > + This driver is also available as a module ( = code which can be
> > + inserted in and removed from the running kernel whenever you want).
> > + The module is called rtc.o. If you want to compile it as a module,
> genrtc.o ... I could swear I fixed it in m68k CVS ;)
I might have grabbed too old a version of that. Fixing it now.
Tom Rini (TR1265)
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