[coreboot-gerrit] New patch to review for coreboot: lenovo/x201: run `enable acpi` smi before s3 resume

[Alexander Couzens]

Alexander Couzens ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/10797

-gerrit

commit 59b203e29c3a74184a8c2ec0a16075b6d231c247
Author: Alexander Couzens 
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 cycle no EC event are processed
    because the EC doesn't notice the OSPM anymore.

Calling the acpi resume handler fix this mainly by calling:
    ec_write(0x80, 0x01); /* discard all events, and enable attention */

Change-Id: I157e69e6e1e643c7b5d94f5efd87adf899b15443
    Signed-off-by: Alexander Couzens 
---
 src/mainboard/lenovo/x201/mainboard.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/mainboard/lenovo/x201/mainboard.c b/src/mainboard/lenovo/x201/mainboard.c
index 62e4fc9..c14f699 100644
--- a/src/mainboard/lenovo/x201/mainboard.c
+++ b/src/mainboard/lenovo/x201/mainboard.c
@@ -122,6 +122,13 @@ 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,
 };
+