The IRQ probing is needlessly complex. All off the 83xx device trees in
arch/powerpc/boot/dts/ specify 5 interrupts per DMA controller: one for the
controller, and one for each channel. These interrupts are all attached to
the same IRQ line.
This causes an interesting situation if two channels int
Ira W. Snyder wrote:
I don't think this would break any existing hardware. The 83xx all
shares one IRQ line, and the 85xx/86xx only have per-channel interrupts,
right? (I'm not an 85xx/86xx guy, I've only got 83xx experience). This
is what the device trees suggest, anyway.
Right.
It looks lik
On Wed, Jan 06, 2010 at 12:02:26PM -0600, Scott Wood wrote:
> On Thu, Dec 31, 2009 at 10:10:44PM -0800, Ira W. Snyder wrote:
> > The IRQ probing is needlessly complex. All off the 83xx device trees in
> > arch/powerpc/boot/dts/ specify 5 interrupts per DMA controller: one for the
> > controller, an
On Thu, Dec 31, 2009 at 10:10:44PM -0800, Ira W. Snyder wrote:
> The IRQ probing is needlessly complex. All off the 83xx device trees in
> arch/powerpc/boot/dts/ specify 5 interrupts per DMA controller: one for the
> controller, and one for each channel. These interrupts are all attached to
> the s
The IRQ probing is needlessly complex. All off the 83xx device trees in
arch/powerpc/boot/dts/ specify 5 interrupts per DMA controller: one for the
controller, and one for each channel. These interrupts are all attached to
the same IRQ line.
This causes an interesting situation if two channels int
