[coreboot-gerrit] Patch set updated for coreboot: ace97fe acpi/ec: Add missing delay
Vladimir Serbinenko (phcoder@gmail.com)
gerrit at coreboot.org
Mon Jan 6 10:18:27 CET 2014
Vladimir Serbinenko (phcoder at gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4617
-gerrit
commit ace97fe05e5c2c55ed7db01b481766be8c216cb3
Author: Vladimir Serbinenko <phcoder at gmail.com>
Date: Sun Jan 5 06:50:10 2014 +0100
acpi/ec: Add missing delay
Without this delay on fast systems like X230 the port is read before it's
updated.
Change-Id: I3e01fc348cc5170cec108a05095ba301055ed6b0
Signed-off-by: Vladimir Serbinenko <phcoder at gmail.com>
---
src/ec/acpi/ec.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/ec/acpi/ec.c b/src/ec/acpi/ec.c
index ab287d6..c24ddbd 100644
--- a/src/ec/acpi/ec.c
+++ b/src/ec/acpi/ec.c
@@ -73,6 +73,8 @@ int send_ec_data(u8 data)
// return -1;
}
+ udelay(10);
+
outb(data, ec_data_reg);
return 0;
@@ -104,6 +106,8 @@ u8 recv_ec_data(void)
// return -1;
}
+ udelay(10);
+
data = inb(ec_data_reg);
printk(BIOS_SPEW, "recv_ec_data: 0x%02x\n", data);
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