ACPI: EC: use BURST mode only for MSI notebooks

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 839b542d5087..788db781a519 100644
--- a/drivers/acpi/ec.c
+++ b/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: