Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b3b233c7d948a5f55185fb5a1b248157b948a1e5
Commit: b3b233c7d948a5f55185fb5a1b248157b948a1e5
Parent: 3e71a87d03055de0b8c8e42aba758ee6494af083
Author: Alexey Starikovskiy <[EMAIL PROTECTED]>
AuthorDate: Fri Jan 11 02:42:57 2008 +0300
Committer: Len Brown <[EMAIL PROTECTED]>
CommitDate: Thu Jan 10 20:50:12 2008 -0500
ACPI: EC: Some hardware requires burst mode to operate properly
Burst mode temporary (50 ms) locks EC to do only transactions with
driver, without it some hardware returns abstract garbage.
Reference: http://bugzilla.kernel.org/show_bug.cgi?id=9341
Signed-off-by: Alexey Starikovskiy <[EMAIL PROTECTED]>
Signed-off-by: Len Brown <[EMAIL PROTECTED]>
---
drivers/acpi/ec.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 63862df..445ecba 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -575,6 +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 (function == ACPI_READ) {
result = acpi_ec_read(ec, address, &temp);
*value = temp;
@@ -594,6 +596,8 @@ acpi_ec_space_handler(u32 function, acpi_physical_address
address,
}
}
+ acpi_ec_burst_disable(ec);
+
switch (result) {
case -EINVAL:
return AE_BAD_PARAMETER;
-
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