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| author | Peter Marheine <pmarheine@chromium.org> | 2022-07-21 11:25:34 +1000 |
|---|---|---|
| committer | Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> | 2022-07-21 23:57:53 +0000 |
| commit | 4354b58e599a8d3e3ce640f9eb28b52e1fe9a07f (patch) | |
| tree | 293b4df36cd1137705cbbabb5e1c85b5e876be60 /board/lantis | |
| parent | 2ea820312d0c4f47fa13eed3be5c384944cf0a00 (diff) | |
| download | chrome-ec-4354b58e599a8d3e3ce640f9eb28b52e1fe9a07f.tar.gz | |
dedede: limit PD voltage to 15V for boards with SM5803
Silicon Mitus have stated that the SM5803 may be damaged by voltage spikes
on VBUS in excess of 20V, and recommended that VBUS above 15V not be used
to prevent damage. Although dedede configures the max PD power to 45W which
will usually result in 15V@3A maximum, 20V@2.25A is also a valid choice
that would be dangerous.
Boards that do not use the SM5803 are unchanged, but the setting must
now be specified for each board because it is not uniform across all
dedede boards.
BUG=b:230712704
TEST=make buildall
BRANCH=none
Signed-off-by: Peter Marheine <pmarheine@chromium.org>
Change-Id: I5b2359fc2720ef0b5a7f2480ff67e0e821c378ad
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3778900
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Diana Z <dzigterman@chromium.org>
Diffstat (limited to 'board/lantis')
| -rw-r--r-- | board/lantis/board.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/board/lantis/board.h b/board/lantis/board.h index 835de04391..4db3fd3d0f 100644 --- a/board/lantis/board.h +++ b/board/lantis/board.h @@ -24,6 +24,7 @@ /* Charger */ #define CONFIG_CHARGE_RAMP_HW #define CONFIG_CHARGER_SM5803 /* C0 and C1: Charger */ +#define PD_MAX_VOLTAGE_MV 15000 #define CONFIG_USB_PD_VBUS_DETECT_CHARGER #define CONFIG_USB_PD_5V_CHARGER_CTRL #define CONFIG_CHARGER_OTG |