mfd: ab8500-debugfs: Add tests for ab8540 based platform initialisations

Signed-off-by: Alexandre Torgue <alexandre.torgue@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: Mattias WALLIN <mattias.wallin@stericsson.com>
Tested-by: Maxime COQUELIN <maxime.coquelin@stericsson.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
index 55d0ff4..969e43d 100644
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@ -1943,6 +1943,8 @@
 		num_interrupt_lines = AB8505_NR_IRQS;
 	else if (is_ab9540(ab8500))
 		num_interrupt_lines = AB9540_NR_IRQS;
+	else if (is_ab8540(ab8500))
+		num_interrupt_lines = AB8540_NR_IRQS;
 
 	file = debugfs_create_file("interrupts", (S_IRUGO),
 	    ab8500_dir, &plf->dev, &ab8500_interrupts_fops);