diff options
| author | Shawn Nematbakhsh <shawnn@chromium.org> | 2015-08-10 15:42:12 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-08-11 21:21:34 +0000 |
| commit | ccb0c139310671c659fc457cf61c4193a9d64fb1 (patch) | |
| tree | 387dd04050b9641e09e2eef228b3f3bf14f626d8 /board | |
| parent | 5b93f04c195675c8ad093bd2c36c85088e68ab74 (diff) | |
| download | chrome-ec-ccb0c139310671c659fc457cf61c4193a9d64fb1.tar.gz | |
glados: Turn off LEDs in hibernate
Use new board-level hibernate GPIO state function to turn off LEDs in
hibernate.
BUG=chrome-os-partner:43807
TEST=Manual on Glados with subsequent commit. Run 'hibernate' on console,
verify that LED remains off. Press power button, verify that board wakes.
BRANCH=None
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: Id695df9b5e75514f8f807a894b63f71676b66f92
Reviewed-on: https://chromium-review.googlesource.com/292317
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'board')
| -rw-r--r-- | board/glados/board.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/board/glados/board.c b/board/glados/board.c index 5e026b71b6..3473179cb8 100644 --- a/board/glados/board.c +++ b/board/glados/board.c @@ -319,3 +319,33 @@ void board_chipset_suspend(void) gpio_set_level(GPIO_PP1800_DX_SENSOR_EN, 0); } DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT); + +/* Turn off LEDs in hibernate */ +uint32_t board_get_gpio_hibernate_state(uint32_t port, uint32_t pin) +{ + int i; + const uint32_t led_gpios[][2] = { + GPIO_TO_PORT_MASK_PAIR(GPIO_CHARGE_LED_1), + GPIO_TO_PORT_MASK_PAIR(GPIO_CHARGE_LED_2), + }; + +#ifdef GLADOS_BOARD_V1 + /* + * Leave PCH RTCRST deasserted. + * TODO(crosbug.com/p/42774): Remove this once we have a + * pull-down on PCH_RTCRST. + */ + const uint32_t rtcrst_gpio[2] = + GPIO_TO_PORT_MASK_PAIR(GPIO_PCH_RTCRST); + if (port == rtcrst_gpio[0] && pin == rtcrst_gpio[1]) + return GPIO_OUTPUT | GPIO_LOW; +#endif + + /* LED GPIOs should be driven low to turn off LEDs */ + for (i = 0; i < ARRAY_SIZE(led_gpios); ++i) + if (led_gpios[i][0] == port && led_gpios[i][1] == pin) + return GPIO_OUTPUT | GPIO_LOW; + + /* Other GPIOs should be put in a low-power state */ + return GPIO_INPUT | GPIO_PULL_UP; +} |