[coreboot-gerrit] Patch set updated for coreboot: lenovo/x201: run `enable acpi` smi before s3 resume

[Alexander Couzens (lynxis@fe80.eu)]

Alexander Couzens (lynxis at fe80.eu) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/10797

-gerrit

commit 80f065689b413e5ad586f9cbba0ebe2377f31b35
Author: Alexander Couzens <lynxis at fe80.eu>
Date:   Thu Jul 2 16:58:19 2015 +0200

    lenovo/x201: run `enable acpi` smi before s3 resume
    
    Fixes missing ec event bug.
    After multiple suspend resume cycles no EC event are processed
    because the EC doesn't notice the OSPM anymore.
    
    Calling the acpi resume handler fix this by calling:
    ec_write(0x80, 0x01); /* discard all events, and enable attention */
    
    Change-Id: I157e69e6e1e643c7b5d94f5efd87adf899b15443
    Signed-off-by: Alexander Couzens <lynxis at fe80.eu>
---
 src/mainboard/lenovo/x201/mainboard.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/mainboard/lenovo/x201/mainboard.c b/src/mainboard/lenovo/x201/mainboard.c
index 62e4fc9..ff13fb7 100644
--- a/src/mainboard/lenovo/x201/mainboard.c
+++ b/src/mainboard/lenovo/x201/mainboard.c
@@ -122,6 +122,12 @@ static void mainboard_enable(device_t dev)
 
 }
 
+void mainboard_suspend_resume(void)
+{
+	/* Enable ACPI mode before OS resume */
+	outb(0xe1, 0xb2);
+}
+
 struct chip_operations mainboard_ops = {
 	.enable_dev = mainboard_enable,
 };