diff options
| author | Dino Li <Dino.Li@ite.com.tw> | 2016-09-21 11:21:15 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-09-21 19:37:17 -0700 |
| commit | 0174d4f85bc83d9081c39de1d5399cab45c61a72 (patch) | |
| tree | bcbd9a3b40e347822a7e864d23dd3e97f095bcef /board/it83xx_evb | |
| parent | c5d03154ee5e5d49d6d1c731dd22a551e1e6c04c (diff) | |
| download | chrome-ec-0174d4f85bc83d9081c39de1d5399cab45c61a72.tar.gz | |
it83xx: EC sleep mode for system hibernate
The typical power consumption in sleep mode is 65uA.
IT83xx uses deep doze mode for low power idle task. The typical power
consumption in this state is 280uA (depends on EC tasks, it should be more)
and the wake up time is in microsecond. We are using deep doze mode for
low power idle task instead of sleep mode is because the wake up time
will be 6ms more.
While in system hibernate (EC sleep mode), EC won't wake up frequently so
we can keep the power consumption at 65uA.
Signed-off-by: Dino Li <dino.li@ite.com.tw>
BRANCH=none
BUG=none
TEST=- hibernate 0 [1|999999]
- hibernate [1|5|10|600]
- hibernate then press power button.
- hibernate then lid open.
Change-Id: I94884c010264f01ede4950c6bb1b0a444d7b1e6d
Reviewed-on: https://chromium-review.googlesource.com/383332
Commit-Ready: Dino Li <dino0303@gmail.com>
Tested-by: Dino Li <dino0303@gmail.com>
Reviewed-by: Shawn N <shawnn@chromium.org>
Diffstat (limited to 'board/it83xx_evb')
| -rw-r--r-- | board/it83xx_evb/board.c | 6 | ||||
| -rw-r--r-- | board/it83xx_evb/board.h | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/board/it83xx_evb/board.c b/board/it83xx_evb/board.c index 52a724ecff..df92683ff8 100644 --- a/board/it83xx_evb/board.c +++ b/board/it83xx_evb/board.c @@ -228,6 +228,12 @@ const struct ec2i_t pnpcfg_settings[] = { }; BUILD_ASSERT(ARRAY_SIZE(pnpcfg_settings) == EC2I_SETTING_COUNT); +/* Wake-up pins for hibernate */ +const enum gpio_signal hibernate_wake_pins[] = { + GPIO_POWER_BUTTON_L, GPIO_LID_OPEN +}; +const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins); + /* Initialize board. */ static void board_init(void) { diff --git a/board/it83xx_evb/board.h b/board/it83xx_evb/board.h index c82ff9f5ba..e19e1bd105 100644 --- a/board/it83xx_evb/board.h +++ b/board/it83xx_evb/board.h @@ -59,6 +59,7 @@ #ifndef __ASSEMBLER__ +#include "gpio_signal.h" #include "registers.h" #define I2C_PORT_CHARGER IT83XX_I2C_CH_C |