GPIO_INTTYPE_LEVEL
iowrite32(0, (void __iomem *) GPIO_INTTYPE_LEVEL);
iowrite32(0x00000000, (void __iomem *) GPIO_INTTYPE_LEVEL);
case GPIO_INTTYPE_LEVEL:
level = dwapb_read(gpio, GPIO_INTTYPE_LEVEL);
dwapb_write(gpio, GPIO_INTTYPE_LEVEL, level);
ctx->int_type = dwapb_read(gpio, GPIO_INTTYPE_LEVEL);
dwapb_write(gpio, GPIO_INTTYPE_LEVEL, ctx->int_type);