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| author | Randall Spangler <rspangler@chromium.org> | 2013-06-20 14:35:18 -0700 |
|---|---|---|
| committer | ChromeBot <chrome-bot@google.com> | 2013-06-20 17:49:58 -0700 |
| commit | ff9ee74b3ffa1c14ed058f178ad584a443dfa15c (patch) | |
| tree | f48db7f08afa763580293f9a172f99645422d806 | |
| parent | ddcecbe0893ae40a0fe2c27ed7a7cfe0f5bdce12 (diff) | |
| download | chrome-ec-ff9ee74b3ffa1c14ed058f178ad584a443dfa15c.tar.gz | |
pit: Disable SPI output when AP is suspended
This fixes the problem where the EC consumes too much power during suspend.
BUG=chrome-os-partner:20223
BRANCH=none
TEST=from root shell, 'powerd_suspend'. 1.8V_MICOM should not go up.
after resume, 'ectool hello' should still work.
Change-Id: I93b781e96bea633419e923a83f1f6d7300ae8c54
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/59474
Reviewed-by: Derek Basehore <dbasehore@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | chip/stm32/spi.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/chip/stm32/spi.c b/chip/stm32/spi.c index 51a8e50cfd..b557875126 100644 --- a/chip/stm32/spi.c +++ b/chip/stm32/spi.c @@ -449,6 +449,7 @@ static void spi_chipset_startup(void) enabled = 1; } DECLARE_HOOK(HOOK_CHIPSET_STARTUP, spi_chipset_startup, HOOK_PRIO_DEFAULT); +DECLARE_HOOK(HOOK_CHIPSET_RESUME, spi_chipset_startup, HOOK_PRIO_DEFAULT); static void spi_chipset_shutdown(void) { @@ -461,3 +462,4 @@ static void spi_chipset_shutdown(void) gpio_set_alternate_function(GPIO_A, 0xf0, -1); } DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, spi_chipset_shutdown, HOOK_PRIO_DEFAULT); +DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, spi_chipset_shutdown, HOOK_PRIO_DEFAULT); |