Hi Richard, On Tue, 2 Apr 2013 08:46:37 +0200 Richard Weinberger <richard@xxxxxx> wrote: > > The CS5535/CS5536 MFGPT has no support to reset the device. > The current method uses an undocumented bit but does not work on all > devices. At least on my ALIX board it completely freezes the board. > > This new method tries to soft reset all timers by unconfiguring them. > But this does not clear the RO setup register and therefore it has to > be ignored while probing. > > Resetting the timers is not only needed on broken BIOSes also when > kexec is used. Otherwise the new kernel will find preconfigured timers > and odd things will happen. > > Signed-off-by: Richard Weinberger <richard@xxxxxx> > --- > drivers/misc/cs5535-mfgpt.c | 41 +++++++++++++++++++++++++++++++++++++---- > 1 file changed, 37 insertions(+), 4 deletions(-) Greg will probably want an incremental fix patch as he does not rewrite his trees. -- Cheers, Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
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