diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index e971af8..8222e37 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -795,6 +795,7 @@
 		return 2;
 
 	case STMPE_BLOCK_KEYPAD:
+	case STMPE_BLOCK_PWM:
 		return 1;
 
 	case STMPE_BLOCK_GPIO: