diff options
| author | Keith Short <keithshort@chromium.org> | 2020-06-09 11:08:36 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-06-11 19:11:52 +0000 |
| commit | 7b2203f0e45e6dc653aec4bc4c5cd4b72e844b9f (patch) | |
| tree | 2a135469400c4cbb3c5944ea5065c8fb5e0e5566 /common/throttle_ap.c | |
| parent | df529a8b76057f59b0f9ce5db4ff840f4f577d33 (diff) | |
| download | chrome-ec-7b2203f0e45e6dc653aec4bc4c5cd4b72e844b9f.tar.gz | |
throttle_ap: Turn on fans during PROCHOT events
For platforms the monitor the PROCHOT signal as an input to the EC, turn
on the fans at 100% duty cycle while PROCHOT is active.
BUG=b:157916121
BRANCH=none
TEST=make buildall
TEST=On Volteer, force EC_PROCHOT_IN signal high, verify fan turns on.
Verify fan reverts to automatic mode once PROCHOT clears.
Signed-off-by: Keith Short <keithshort@chromium.org>
Change-Id: Iba24daef4211d4b0d51833a569b78a9e40c71271
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2237917
Reviewed-by: Abe Levkoy <alevkoy@chromium.org>
Reviewed-by: caveh jalali <caveh@chromium.org>
Diffstat (limited to 'common/throttle_ap.c')
| -rw-r--r-- | common/throttle_ap.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/common/throttle_ap.c b/common/throttle_ap.c index 52b9c96127..8a4314db4d 100644 --- a/common/throttle_ap.c +++ b/common/throttle_ap.c @@ -8,6 +8,7 @@ #include "chipset.h" #include "common.h" #include "console.h" +#include "dptf.h" #include "hooks.h" #include "host_command.h" #include "task.h" @@ -96,10 +97,18 @@ static void prochot_input_deferred(void) debounced_prochot_in = prochot_in; - if (debounced_prochot_in) + if (debounced_prochot_in) { CPRINTS("External PROCHOT assertion detected"); - else +#ifdef CONFIG_FANS + dptf_set_fan_duty_target(100); +#endif + } else { CPRINTS("External PROCHOT condition cleared"); +#ifdef CONFIG_FANS + /* Revert to automatic control of the fan */ + dptf_set_fan_duty_target(-1); +#endif + } } DECLARE_DEFERRED(prochot_input_deferred); |