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| author | Paul Stewart <pstew@chromium.org> | 2013-10-23 08:12:00 -0700 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2013-10-23 20:07:02 +0000 |
| commit | 2464d08e4d310a3f63208f22df4502c5250c4b58 (patch) | |
| tree | b793becf59540c442d8da72b140c5524c72a981a | |
| parent | 2d4ece9b69978c6b03af6f763c8d23ad62239948 (diff) | |
| download | chrome-ec-2464d08e4d310a3f63208f22df4502c5250c4b58.tar.gz | |
bolt: Leave WiFi power on in S3
This improves WiFi stability after resume since powering down may
erase or otherwise stymy the firmware.
Signed-off-by: Paul Stewart <pstew@chromium.org>
BUG=chrome-os-partner:22175
BRANCH=none
TEST=Suspend and resume bolt, make sure WiFi is still operable
Change-Id: Ia9e39464955b373e6f03a36ca5af5c475e957208
Reviewed-on: https://chromium-review.googlesource.com/174257
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
Commit-Queue: Paul Stewart <pstew@chromium.org>
| -rw-r--r-- | board/bolt/power_sequence.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/board/bolt/power_sequence.c b/board/bolt/power_sequence.c index 1549f75d8c..0e458aeb26 100644 --- a/board/bolt/power_sequence.c +++ b/board/bolt/power_sequence.c @@ -332,8 +332,9 @@ enum x86_state x86_handle_state(enum x86_state state) /* Disable +CPU_CORE */ gpio_set_level(GPIO_VCORE_EN, 0); - /* Disable wireless */ - wireless_enable(0); + /* Disable WWAN, but leave WiFi on */ + wireless_enable(EC_WIRELESS_SWITCH_WLAN | + EC_WIRELESS_SWITCH_WLAN_POWER); /* * Deassert prochot since CPU is off and we're about to drop @@ -351,6 +352,9 @@ enum x86_state x86_handle_state(enum x86_state state) /* Call hooks before we remove power rails */ hook_notify(HOOK_CHIPSET_SHUTDOWN); + /* Disable wireless */ + wireless_enable(0); + /* Disable touchpad power */ gpio_set_level(GPIO_ENABLE_TOUCHPAD, 0); |