diff options
| author | Todd Broch <tbroch@chromium.org> | 2013-03-15 11:15:13 -0700 |
|---|---|---|
| committer | ChromeBot <chrome-bot@google.com> | 2013-04-01 13:52:57 -0700 |
| commit | f9ed88d612297b40c6c7b072496c216a47d5eb6a (patch) | |
| tree | 3aace67c24b0ab53c9ff40e519de8640b5ac1028 | |
| parent | 5838bd56096903eb3dec420fb0c3399fea52a870 (diff) | |
| download | chrome-ec-f9ed88d612297b40c6c7b072496c216a47d5eb6a.tar.gz | |
spring: Enable low power mode.
This mode was disabled initially to make sure it didn't side-effect
things during early development. Now that branch is cut lets
re-enable and backport when stability is proven.
Signed-off-by: Todd Broch <tbroch@chromium.org>
BRANCH=spring
BUG=chrome-os-partner:17587
TEST=manual, install & run on Spring ... system functions.
When device is plugged stays awake regardless of battery state.
When device is unplugged sleeps and power is saved.
When device is re-plugged awakes.
Change-Id: I9a85fa7376d1a94c9864beed3d053e8b49480959
Reviewed-on: https://gerrit.chromium.org/gerrit/45594
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Todd Broch <tbroch@chromium.org>
Commit-Queue: Todd Broch <tbroch@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/46635
| -rw-r--r-- | board/spring/board.h | 4 | ||||
| -rw-r--r-- | board/spring/usb_charging.c | 5 | ||||
| -rw-r--r-- | include/clock.h | 1 |
3 files changed, 8 insertions, 2 deletions
diff --git a/board/spring/board.h b/board/spring/board.h index 8c2a3932c4..d48cfee283 100644 --- a/board/spring/board.h +++ b/board/spring/board.h @@ -27,8 +27,8 @@ #undef CONFIG_TASK_PROFILING #define CONFIG_WATCHDOG_HELP -/* DE-ACTIVATED: use STOP mode when we have nothing to do */ -#undef CONFIG_LOW_POWER_IDLE +/* use STOP mode when we have nothing to do */ +#define CONFIG_LOW_POWER_IDLE /* Smart battery and TPSchrome are on a private I2C bus behind the EC */ #define CONFIG_I2C_PASSTHROUGH diff --git a/board/spring/usb_charging.c b/board/spring/usb_charging.c index a0bc3b1734..75b57826da 100644 --- a/board/spring/usb_charging.c +++ b/board/spring/usb_charging.c @@ -8,6 +8,7 @@ #include "adc.h" #include "board.h" #include "chipset.h" +#include "clock.h" #include "console.h" #include "hooks.h" #include "gpio.h" @@ -495,6 +496,10 @@ static void usb_device_change(int dev_type) keyboard_send_battery_key(); current_dev_type = dev_type; + if (dev_type) + disable_sleep(SLEEP_MASK_USB_PWR); + else + enable_sleep(SLEEP_MASK_USB_PWR); } /* diff --git a/include/clock.h b/include/clock.h index b2e3b81ac1..e70df962b1 100644 --- a/include/clock.h +++ b/include/clock.h @@ -46,6 +46,7 @@ enum { SLEEP_MASK_UART = (1 << 1), /* UART communication on-going */ SLEEP_MASK_I2C = (1 << 2), /* I2C master communication on-going */ SLEEP_MASK_CHARGING = (1 << 3), /* Charging loop on-going */ + SLEEP_MASK_USB_PWR = (1 << 4), /* USB power loop on-going */ SLEEP_MASK_FORCE = (1 << 31), /* Force disabling low power modes */ }; |