diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index c94f521..79e88d1 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -294,12 +294,14 @@
 
 static struct mfd_cell stmpe_gpio_cell = {
 	.name		= "stmpe-gpio",
+	.of_compatible	= "st,stmpe-gpio",
 	.resources	= stmpe_gpio_resources,
 	.num_resources	= ARRAY_SIZE(stmpe_gpio_resources),
 };
 
 static struct mfd_cell stmpe_gpio_cell_noirq = {
 	.name		= "stmpe-gpio",
+	.of_compatible	= "st,stmpe-gpio",
 	/* gpio cell resources consist of an irq only so no resources here */
 };