From 6a63b06f3c494cc87eade97f081300bda60acec7 Mon Sep 17 00:00:00 2001
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Date: Fri, 28 Aug 2009 23:29:44 +0400
Subject: [PATCH] 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>
---
drivers/acpi/ec.c | 6 ++++--
1 file 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:
--
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