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eve: Set KBD_KS02 to pull-down when hibernating

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cr50 has an internal pull-down on this pin so the EC should match it
to prevent leakage.

BUG=chrome-os-partner:58666
BRANCH=none
TEST=build and boot on eve and verify hibernate enter/exit

Change-Id: I3eba0661211d356783c0c710f0d7d5fe11fd6c26
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/415225
Reviewed-by: Scott Collyer <scollyer@chromium.org>
This commit is contained in:
Duncan Laurie
2016-11-29 13:51:55 -08:00
committed by chrome-bot
parent bd237603ce
commit fffc34706d
1 changed files with 3 additions and 1 deletions
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4
board/eve/board.c
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@@ -575,8 +575,10 @@ void board_hibernate_late(void)
* while hibernating we want to enable GPIO_PULL_UP as well.
*/
gpio_set_flags_by_mask(0x2, 0x03, GPIO_INPUT | GPIO_PULL_UP);
gpio_set_flags_by_mask(0x1, 0xFF, GPIO_INPUT | GPIO_PULL_UP);
gpio_set_flags_by_mask(0x1, 0x7F, GPIO_INPUT | GPIO_PULL_UP);
gpio_set_flags_by_mask(0x0, 0xE0, GPIO_INPUT | GPIO_PULL_UP);
/* KBD_KS02 needs to have a pull-down enabled to match cr50 */
gpio_set_flags_by_mask(0x1, 0x80, GPIO_INPUT | GPIO_PULL_DOWN);
}
void board_hibernate(void)