From 2e2fe3cc91d2831c9962e5e96bd5739eba00ea73 Mon Sep 17 00:00:00 2001
From: David Wu <david_wu@quanta.corp-partner.google.com>
Date: Thu, 22 Nov 2018 20:38:47 +0800
Subject: mb/google/fizz/variants/karma: Clear GPP_B4 when entering S5

Set GPP_B4 to low in S5 to meet touch panel power sequence

BUG=b:124197348
BRANCH=master
TEST=Verify GPP_B4 is low.

Change-Id: I65deb33a45fdc0c0ce64deaa29c2790029dc1d12
Signed-off-by: David Wu <David_Wu@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/29796
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Zhuohao Lee <zhuohao@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: David Wu <david_wu@quanta.corp-partner.google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
---
 src/mainboard/google/fizz/smihandler.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/mainboard/google/fizz/smihandler.c')

diff --git a/src/mainboard/google/fizz/smihandler.c b/src/mainboard/google/fizz/smihandler.c
index 3aa9ddb53a..2b7367ad34 100644
--- a/src/mainboard/google/fizz/smihandler.c
+++ b/src/mainboard/google/fizz/smihandler.c
@@ -17,6 +17,7 @@
 #include <ec/google/chromeec/smm.h>
 #include <soc/smm.h>
 
+#include <baseboard/variants.h>
 #include <variant/ec.h>
 
 void mainboard_smi_espi_handler(void)
@@ -24,8 +25,11 @@ void mainboard_smi_espi_handler(void)
 	chromeec_smi_process_events();
 }
 
+void __weak variant_smi_sleep(u8 slp_typ) {}
+
 void mainboard_smi_sleep(u8 slp_typ)
 {
+	variant_smi_sleep(slp_typ);
 	chromeec_smi_sleep(slp_typ, MAINBOARD_EC_S3_WAKE_EVENTS,
 			MAINBOARD_EC_S5_WAKE_EVENTS);
 }
-- 
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