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samus: change power supply transition delay to 80ms

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Change samus power supply transition delay for Raiden ports to
80ms since it may take that long to turn off the power supply
when doing a power swap.

BUG=chrome-os-partner:34525
BRANCH=samus
TEST=load onto samus, connect samus to samus and do a power swap.

Change-Id: I20c2cb78f17168a5b69780de4af5ff478f6d5f87
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/238961
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Alec Berg
2015-01-06 17:05:53 -08:00
committed by ChromeOS Commit Bot
parent 98daf2a9d1
commit e95f24ce52
1 changed files with 6 additions and 2 deletions
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8
board/samus_pd/usb_pd_config.h
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@@ -258,8 +258,12 @@ static inline int pd_snk_is_vbus_provided(int port)
/* start as a sink in case we have no other power supply/battery */
#define PD_DEFAULT_STATE PD_STATE_SNK_DISCONNECTED
/* delay for the voltage transition on the power supply, chip max is 16us */
#define PD_POWER_SUPPLY_TRANSITION_DELAY 20000 /* us */
/*
* delay for the voltage transition on the power supply, chip max is 16ms.
* delay to turn off the power supply depends on vbus capacitance, but
* is well above that. 80ms seems to work for most devices.
*/
#define PD_POWER_SUPPLY_TRANSITION_DELAY 80000 /* us */
/* Define typical operating power and max power */
#define PD_OPERATING_POWER_MW 15000