diff --git a/[refs] b/[refs]
index a2bf7cad0fdf..3a8b67d21a6d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2a84cb9852f52c0cd1c48bca41a8792d44ad06cc
+refs/heads/master: 6a63b06f3c494cc87eade97f081300bda60acec7
diff --git a/trunk/drivers/acpi/ec.c b/trunk/drivers/acpi/ec.c
index 839b542d5087..788db781a519 100644
--- a/trunk/drivers/acpi/ec.c
+++ b/trunk/drivers/acpi/ec.c
@@ -575,7 +575,8 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
 	if (bits != 8 && acpi_strict)
 		return AE_BAD_PARAMETER;
 
-	acpi_ec_burst_enable(ec);
+	if (EC_FLAGS_MSI)
+		acpi_ec_burst_enable(ec);
 
 	if (function == ACPI_READ) {
 		result = acpi_ec_read(ec, address, &temp);
@@ -596,7 +597,8 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
 		}
 	}
 
-	acpi_ec_burst_disable(ec);
+	if (EC_FLAGS_MSI)
+		acpi_ec_burst_disable(ec);
 
 	switch (result) {
 	case -EINVAL: