[ARM] pxa: add GPIO expander (PCA9539) support for zylonite

     And also reserve 32 IRQs for the two GPIO expanders.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/asm-arm/arch-pxa/irqs.h b/include/asm-arm/arch-pxa/irqs.h
index b6c8fe377683..d85736048461 100644
--- a/include/asm-arm/arch-pxa/irqs.h
+++ b/include/asm-arm/arch-pxa/irqs.h
@@ -184,6 +184,8 @@
       defined(CONFIG_MACH_PCM027) || \
       defined(CONFIG_MACH_MAGICIAN)
 #define NR_IRQS                 (IRQ_BOARD_END)
+#elif defined(CONFIG_MACH_ZYLONITE)
+#define NR_IRQS                 (IRQ_BOARD_START + 32)
 #else
 #define NR_IRQS                 (IRQ_BOARD_START)
 #endif