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pi3usb9281: Limit DCP port to 500mA charge current

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According to specification, a DCP port is only required to provide 500mA
@ 4.75V, though actual supply limit can vary upward significantly. Set
the current limit on DCP ports to 500mA to reflect this reality.

BUG=chrome-os-partner:32003
TEST=None
BRANCH=Samus

Change-Id: I46e25b44baaa41ddf173880e52d7485d952ebf23
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/236772
Reviewed-by: Alec Berg <alecaberg@chromium.org>
This commit is contained in:
Shawn Nematbakhsh
2014-12-18 18:39:46 -08:00
committed by chrome-internal-fetch
parent 165cf6c881
commit 91131f7387
1 changed files with 1 additions and 1 deletions
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2
driver/usb_switch_pi3usb9281.c
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@@ -136,7 +136,7 @@ int pi3usb9281_get_ilim(int device_type, int charger_status)
else if (device_type & PI3USB9281_TYPE_CDP)
current_limit_ma = 1500;
else if (device_type & PI3USB9281_TYPE_DCP)
current_limit_ma = 1500;
current_limit_ma = 500;
return current_limit_ma;
}