In doing the evt2irq() + muxed vector conversion for various port types
it became apparent that some of the legacy port types will presently
error out due to the irq requesting logic attempting to acquire the
non-existent BRI IRQ. This adds some sanity checks to the request/free
path to ensure that non-existence of a source in itself is not an error.

This should restore functionality for legacy PORT_SCI ports.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Conflicts:
	arch/sh/kernel/cpu/sh3/setup-sh770x.c
	arch/sh/kernel/cpu/sh3/setup-sh7710.c
	arch/sh/kernel/cpu/sh3/setup-sh7720.c
	arch/sh/kernel/cpu/sh4/setup-sh7750.c
	arch/sh/kernel/cpu/sh4a/setup-sh7343.c
	arch/sh/kernel/cpu/sh4a/setup-sh7366.c
	arch/sh/kernel/cpu/sh4a/setup-sh7722.c
	arch/sh/kernel/cpu/sh4a/setup-sh7723.c
	arch/sh/kernel/cpu/sh4a/setup-sh7724.c
	arch/sh/kernel/cpu/sh4a/setup-sh7757.c
	arch/sh/kernel/cpu/sh4a/setup-sh7763.c
	arch/sh/kernel/cpu/sh4a/setup-sh7770.c
	arch/sh/kernel/cpu/sh4a/setup-sh7785.c
	arch/sh/kernel/cpu/sh4a/setup-sh7786.c
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This converts over the legacy PCI IRQs to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This migrates the cpu-family relative DMA IRQ definitions over to
evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate sh7763rdp to evt2irq backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate sdk7780 to evt2irq backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate migor to evt2irq backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate landisk to evt2irq backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate kfr2r09 to evt2irq backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate ecovec24 to evt2irq backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate ap325rxa to evt2irq backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate urquell to evt2irq backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate sh7785lcr to evt2irq backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate hp6xx to evt2irq backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate Solution Engine boards to evt2irq backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate sh7757lcr to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate magicpanelr2 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate espt to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate edosk7760 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate edosk7705 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7720 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7710/SH7712 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH770x to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7705 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7760 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7750 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH4-202 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH-X3 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7785 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7780 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7770 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7763 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7757 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7724 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7723 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7722 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7366 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Migrate SH7343 to evt2irq() backed hwirq lookups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This migrates SH7786 to evt2irq() backed hwirq lookup rather than
using an open-coded calculation. This will make it possible to reposition
the vector base at a later point in time.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Pull ARM fixes from Russell King:
 "Small set of fixes again."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7419/1: vfp: fix VFP flushing regression on sigreturn path
  ARM: 7418/1: LPAE: fix access flag setup in mem_type_table
  ARM: prevent VM_GROWSDOWN mmaps extending below FIRST_USER_ADDRESS
  ARM: 7417/1: vfp: ensure preemption is disabled when enabling VFP access