From 764b2e57e741b9d83fa603993ba80e0696fd1333 Mon Sep 17 00:00:00 2001
From: Shawn Nematbakhsh <shawnn@chromium.org>
Date: Tue, 6 Sep 2016 11:31:34 -0700
Subject: kevin: Use 32.768KHz input clock for improved RTC accuracy

BUG=chrome-os-partner:56949
BRANCH=None
TEST=Run stopwatch for 10 minutes, verify 'rtc' time difference matches
stopwatch.

Change-Id: I3aed54b17433f9acfe284e9c8846d4e1e7c1a199
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/381571
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Mulin Chao <mlchao@nuvoton.com>
---
 chip/npcx/clock.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'chip/npcx/clock.c')

diff --git a/chip/npcx/clock.c b/chip/npcx/clock.c
index 725473cccb..f6a65cb02f 100644
--- a/chip/npcx/clock.c
+++ b/chip/npcx/clock.c
@@ -159,6 +159,9 @@ void clock_init(void)
 
 	/* Notify modules of frequency change */
 	hook_notify(HOOK_FREQ_CHANGE);
+
+	/* Configure alt. clock GPIOs (eg. optional 32KHz clock) */
+	gpio_config_module(MODULE_CLOCK, 1);
 }
 
 /**
-- 
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