mfd/tc3589x: add block identifier for multiple child devices

Add block identifier to be able to add multiple mfd clients
to the mfd core

Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Sundar Iyer <sundar.iyer@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 5c95026..060b23a 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -122,6 +122,7 @@
 };
 
 static struct tc3589x_platform_data mop500_tc35892_data = {
+	.block		= TC3589x_BLOCK_GPIO,
 	.gpio		= &mop500_tc35892_gpio_data,
 	.irq_base	= MOP500_EGPIO_IRQ_BASE,
 };