This patch fixes bug on eint type set function, s5p_irq_eint_set_type().
In the IRQ_TYPE_EDGE_FALLING case, S5P_EXTINT_FALLEDGE is right
instead of S5P_EXTINT_RISEEDGE
Signed-off-by: NBoojin Kim <boojin.kim@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch does the following:

1. Corrects the common platform code for external interrupts for using the
   VIC mask/unmask bits also.
2. Moves the common defines related to external interrupt for plat-s5p
   to common files.
3. Based on the new common defines, corresponding changes are made in the
   affected platforms (S5P6440, S5P6442 and S5PC100).
Signed-off-by: NPannaga Bhushan <p.bhushan@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add support for external interrupts on S5PV210.
Signed-off-by: NJongpill Lee <boyko.lee@samsung.com>
Signed-off-by: NPannaga Bhushan <p.bhushan@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
[ben-linux@fluff.org: Ext => IRQ_EINT in title]
Signed-off-by: NBen Dooks <ben-linux@fluff.org>