[PATCH v7 7/9] ipic: clean up unsupported ack operations

Li Yang LeoLi at freescale.com
Fri Nov 30 21:03:59 EST 2007


> -----Original Message-----
> From: Kumar Gala [mailto:galak at kernel.crashing.org] 
> Sent: Friday, November 30, 2007 8:36 AM
> To: Li Yang
> Cc: linuxppc-dev at ozlabs.org
> Subject: Re: [PATCH v7 7/9] ipic: clean up unsupported ack operations
> 
> 
> On Oct 19, 2007, at 6:38 AM, Li Yang wrote:
> 
> > IPIC controller doesn't support ack operations.  The 
> pending registers 
> > are read-only.  The patch removes ack operations which are 
> not needed.
> >
> > Signed-off-by: Li Yang <leoli at freescale.com>
> > ---
> > arch/powerpc/sysdev/ipic.c |   40 + 
> > +--------------------------------------
> > 1 files changed, 2 insertions(+), 38 deletions(-)
> 
> applied.

Hi Kumar,

Please hold on this one.  Actually external interrupts in edge mode need
this ack operation.  But in most cases (level triggered) ack is not
needed.  I will provide an updated patch later on to take care both
trigger modes.  Thanks.

- Leo



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