diff options
| author | Shawn Nematbakhsh <shawnn@chromium.org> | 2015-10-01 14:32:07 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2015-10-12 22:21:41 -0700 |
| commit | 98aafe954608ad14bd7c62c4c3c9dbab6fd5343a (patch) | |
| tree | 3ea8768d313e97736e67a09690959142d2f9daa8 /board/oak_pd | |
| parent | ea48c412e09619218c56a53523c9457e6cb18204 (diff) | |
| download | chrome-ec-98aafe954608ad14bd7c62c4c3c9dbab6fd5343a.tar.gz | |
oak / oak_pd: Enable low-power PD features
- Enable low-power idle on oak_pd.
- Have oak_pd follow oak into hibernate. The wake pin on oak_pd will be
pulled down until oak wakes, which will generate a low-to-high pulse
at oak board_init().
TEST=Manual on oak. Run 'hibernate' on EC console, verify that both EC and
PD go to hibernate. Press power button and verify that both EC and PD wake.
BUG=chrome-os-partner:46073
BRANCH=None
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: Ic33a71654ac46977ff01551d70f6a0dcc0d2b8c0
Reviewed-on: https://chromium-review.googlesource.com/303383
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
Diffstat (limited to 'board/oak_pd')
| -rw-r--r-- | board/oak_pd/board.c | 13 | ||||
| -rw-r--r-- | board/oak_pd/board.h | 3 |
2 files changed, 15 insertions, 1 deletions
diff --git a/board/oak_pd/board.c b/board/oak_pd/board.c index b02e9ad877..0bac0dcdc7 100644 --- a/board/oak_pd/board.c +++ b/board/oak_pd/board.c @@ -112,8 +112,17 @@ DECLARE_CONSOLE_COMMAND(ecint, command_ec_int, "Toggle EC interrupt line", NULL); +static void system_hibernate_deferred(void) +{ + ccprintf("EC requested hibernate\n"); + cflush(); + system_hibernate(0, 0); +} +DECLARE_DEFERRED(system_hibernate_deferred); + static int ec_status_host_cmd(struct host_cmd_handler_args *args) { + const struct ec_params_pd_status *p = args->params; struct ec_response_pd_status *r = args->response; /* @@ -123,6 +132,10 @@ static int ec_status_host_cmd(struct host_cmd_handler_args *args) r->status = ec_int_status; args->response_size = sizeof(*r); + /* Have the PD follow the EC into hibernate. */ + if (p->status & EC_STATUS_HIBERNATING) + hook_call_deferred(system_hibernate_deferred, 0); + /* * If the source of the EC int line was HOST_EVENT, it has * been acknowledged so can always clear HOST_EVENT bit diff --git a/board/oak_pd/board.h b/board/oak_pd/board.h index 52fb775c78..e793c3d434 100644 --- a/board/oak_pd/board.h +++ b/board/oak_pd/board.h @@ -44,12 +44,13 @@ #define CONFIG_CONSOLE_HISTORY 2 #undef CONFIG_DEBUG_ASSERT #define CONFIG_FORCE_CONSOLE_RESUME +#define CONFIG_HIBERNATE #define CONFIG_HIBERNATE_WAKEUP_PINS (STM32_PWR_CSR_EWUP2) #undef CONFIG_HOSTCMD_EVENTS #define CONFIG_HW_CRC #define CONFIG_I2C #undef CONFIG_LID_SWITCH -#undef CONFIG_LOW_POWER_IDLE +#define CONFIG_LOW_POWER_IDLE #define CONFIG_STM_HWTIMER32 #undef CONFIG_TASK_PROFILING #undef CONFIG_UART_TX_BUF_SIZE |