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oak: rev5: increase cycle time for LED in SUSPEND

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Increase LED blink cycle time to reduce power consumption on Oak rev5
with GlaDOS ID.

BUG=chrome-os-partner:50317
TEST=`make EXTRA_CFLAGS=-DBOARD_REV=5 BOARD=oak -j`

Change-Id: Ic00512434965471a82b94ef431e0ec88c9e4c0c3
Reviewed-on: https://chromium-review.googlesource.com/332346
Commit-Ready: Wei-Ning Huang <wnhuang@chromium.org>
Tested-by: Wei-Ning Huang <wnhuang@chromium.org>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
This commit is contained in:
Wei-Ning Huang
2016-03-11 17:27:18 +08:00
committed by chrome-bot
parent 3424deb481
commit 51fa74ec6f
1 changed files with 9 additions and 2 deletions
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11
board/oak/led.c
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@@ -202,9 +202,16 @@ static void oak_led_set_battery(int board_version)
bat_led_set(BAT_LED_GREEN, 0);
else if (chipset_in_state(CHIPSET_STATE_ON))
bat_led_set(BAT_LED_GREEN, 1);
else if (chipset_in_state(CHIPSET_STATE_SUSPEND))
else if (chipset_in_state(CHIPSET_STATE_SUSPEND)) {
int cycle_time = 4;
/* Oak rev5 with GlaDOS ID has a extremely power
* comsuming LED. Increase LED blink cycle time to reduce
* S3 power comsuption. */
if (board_version >= OAK_REV5)
cycle_time = 10;
bat_led_set(BAT_LED_GREEN,
(battery_second & 3) ? 0 : 1);
(battery_second % cycle_time) ? 0 : 1);
}
/* BAT LED behavior:
* Fully charged / idle: Off