diff options
| author | Randall Spangler <rspangler@chromium.org> | 2014-01-28 13:14:51 -0800 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-01-29 00:49:15 +0000 |
| commit | cf43a3b7beb13996e0600605c219d05f562de187 (patch) | |
| tree | 5506b1eeb8c19a16be69b0d592ec98ba21f866df | |
| parent | 9785d09fcbc79b034e8b4f8b6a21fab418fafc3e (diff) | |
| download | chrome-ec-cf43a3b7beb13996e0600605c219d05f562de187.tar.gz | |
rambi: Enable low-power idle
This should reduce EC power consumption in S3 and S5.
BUG=chrome-os-partner:25377
BRANCH=baytrail
TEST=make sure jtag is not active (not running openocd via servo)
boot system; suspend system
wait 60 seconds; should see "Disabling console in deep sleep"
type on console; should still allow typing
wait 60 seconds; press spacebar; should still resume from suspend
Change-Id: I47e33e158c1b90077f944a6af4374f39efa68d94
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/184165
Reviewed-by: Alec Berg <alecaberg@chromium.org>
| -rw-r--r-- | board/rambi/board.h | 1 | ||||
| -rw-r--r-- | include/config.h | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/board/rambi/board.h b/board/rambi/board.h index bebe44e570..95736b2e09 100644 --- a/board/rambi/board.h +++ b/board/rambi/board.h @@ -29,6 +29,7 @@ #define CONFIG_KEYBOARD_IRQ_GPIO GPIO_KBD_IRQ_L #define CONFIG_KEYBOARD_PROTOCOL_8042 #define CONFIG_LED_COMMON +#define CONFIG_LOW_POWER_IDLE #undef CONFIG_PECI #define CONFIG_POWER_BUTTON #define CONFIG_POWER_BUTTON_X86 diff --git a/include/config.h b/include/config.h index 58f68e2b33..46b6faef17 100644 --- a/include/config.h +++ b/include/config.h @@ -508,6 +508,12 @@ * Low power idle options. These are disabled by default and all boards that * want to use low power idle must define it. When using the LFIOSC, the low * frequency clock will be used to conserve even more power when possible. + * + * GPIOs which need to trigger interrupts in low power idle must specify the + * GPIO_INT_DSLEEP flag in gpio_list[]. + * + * Note that for some processors (e.g. LM4), an active JTAG connection will + * prevent the EC from using low-power idle. */ #undef CONFIG_LOW_POWER_IDLE #undef CONFIG_LOW_POWER_USE_LFIOSC |