powerpc/ipic: Support edge on IRQ0

[Michael Ellerman]

On Sun, 2017-06-25 at 02:39:05 UTC, Scott Wood wrote:
> External IRQ0 has the same capabilities as the other IRQ1-7 and is
> handled by the same register IPIC_SEPNR.  When this register is not
> specified for "ack" in "ipic_info", you cannot configure this IRQ as
> IRQ_TYPE_EDGE_FALLING.  This oversight was probably due to the
> non-contiguous hwirq numbering of IRQ0 in the IPIC.
> 
> Signed-off-by: Jurgen Schindele <schindele at nentec.de>
> [scottwood: Cleaned up commit message and posted as a proper patch]
> Signed-off-by: Scott Wood <oss at buserror.net>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/446183e4069e0b62cedfd72ccb90b8

cheers