rtc/i2c-mpc stops working with 2.6.27 on Linkstation HG (powerpc)

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* rtc/i2c-mpc stops working with 2.6.27 on Linkstation HG (powerpc)
@ 2008-10-22 19:16 Michael Weiser
  2008-10-23 18:30 ` Guennadi Liakhovetski
  0 siblings, 1 reply; 3+ messages in thread
From: Michael Weiser @ 2008-10-22 19:16 UTC (permalink / raw)
  To: linux-kernel

Hello,

with 2.6.27(-gentoo) the rtc (Ricoh 5c372) is no longer found on my
Linkstation HG. It seems, the i2c-mpc driver doesn't even find the I2C
controller.

Could this be related to commit
#0d1cde235874b00905bce23f659690d060ebf475 (powerpc/i2c: Convert i2c-mpc
into an of_platform driver,
http://kerneltrap.org/mailarchive/git-commits-head/2008/7/16/2522594/thread)?

What do I need to do, to make it work again?

The configs are virtually identical. The kernels are loaded with their
respective dtb files. The dtb and dts files are identical anyways.
-- 
Thanks,
Micha

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: rtc/i2c-mpc stops working with 2.6.27 on Linkstation HG (powerpc)
  2008-10-22 19:16 rtc/i2c-mpc stops working with 2.6.27 on Linkstation HG (powerpc) Michael Weiser
@ 2008-10-23 18:30 ` Guennadi Liakhovetski
  2008-10-23 21:33   ` Michael Weiser
  0 siblings, 1 reply; 3+ messages in thread
From: Guennadi Liakhovetski @ 2008-10-23 18:30 UTC (permalink / raw)
  To: Michael Weiser; +Cc: linux-kernel

On Wed, 22 Oct 2008, Michael Weiser wrote:

> Hello,
> 
> with 2.6.27(-gentoo) the rtc (Ricoh 5c372) is no longer found on my
> Linkstation HG. It seems, the i2c-mpc driver doesn't even find the I2C
> controller.
> 
> Could this be related to commit
> #0d1cde235874b00905bce23f659690d060ebf475 (powerpc/i2c: Convert i2c-mpc
> into an of_platform driver,
> http://kerneltrap.org/mailarchive/git-commits-head/2008/7/16/2522594/thread)?
> 
> What do I need to do, to make it work again?
> 
> The configs are virtually identical. The kernels are loaded with their
> respective dtb files. The dtb and dts files are identical anyways.

This is a known regression, see, e.g., here:

http://ozlabs.org/pipermail/linuxppc-dev/2008-October/064318.html

waiting for someone to find time to fix it.

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: rtc/i2c-mpc stops working with 2.6.27 on Linkstation HG (powerpc)
  2008-10-23 18:30 ` Guennadi Liakhovetski
@ 2008-10-23 21:33   ` Michael Weiser
  0 siblings, 0 replies; 3+ messages in thread
From: Michael Weiser @ 2008-10-23 21:33 UTC (permalink / raw)
  To: Guennadi Liakhovetski; +Cc: linux-kernel

On Thu, Oct 23, 2008 at 08:30:23PM +0200, Guennadi Liakhovetski wrote:

> > with 2.6.27(-gentoo) the rtc (Ricoh 5c372) is no longer found on my
> > Linkstation HG. It seems, the i2c-mpc driver doesn't even find the I2C
> > controller.

> This is a known regression, see, e.g., here:

> http://ozlabs.org/pipermail/linuxppc-dev/2008-October/064318.html

> waiting for someone to find time to fix it.

Cheers. I found the thread but not the pertinent posts - the web mail
archive I googled into must have been lagging. Sorry for the
duplication.
-- 
bye, Michael

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2008-10-23 22:20 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2008-10-22 19:16 rtc/i2c-mpc stops working with 2.6.27 on Linkstation HG (powerpc) Michael Weiser
2008-10-23 18:30 ` Guennadi Liakhovetski
2008-10-23 21:33   ` Michael Weiser

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