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| author | Peter Marheine <pmarheine@chromium.org> | 2022-02-08 11:48:46 +1100 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2022-02-08 04:10:50 +0000 |
| commit | 80e36d02d24d30030f4fff6774916dd5b71090cc (patch) | |
| tree | b6d81121728f45b007b84e0ed18f171e71345893 /zephyr | |
| parent | f78f186e9e27d7d0ff6acc6fb9112f21538e76b9 (diff) | |
| download | chrome-ec-80e36d02d24d30030f4fff6774916dd5b71090cc.tar.gz | |
nissa/nereid: add definition for USB_C0_PROT_FAULT GPIO
This gets pulled low by the protection chip on the port if there is an
overvoltage detected on CC or SBU pins, or if the protection chip is
over-temperature. The EC currently takes no action in response to this
fault, since the protection chip disconnects the affected lines which
should be detected as-is by the TCPC.
BUG=b:218388229
TEST=gpioget usb_c0_prot_fault_odl
BRANCH=none
Signed-off-by: Peter Marheine <pmarheine@chromium.org>
Change-Id: Id6389599531bac1c88a7040a6370d28b6c7d48d5
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3445703
Reviewed-by: Andrew McRae <amcrae@google.com>
Diffstat (limited to 'zephyr')
| -rw-r--r-- | zephyr/projects/nissa/nereid_overlay.dts | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/zephyr/projects/nissa/nereid_overlay.dts b/zephyr/projects/nissa/nereid_overlay.dts index bbc4b3e2ed..ac81462471 100644 --- a/zephyr/projects/nissa/nereid_overlay.dts +++ b/zephyr/projects/nissa/nereid_overlay.dts @@ -56,6 +56,14 @@ }; named-gpios { + /* + * EC doesn't take any specific action on CC/SBU disconnect due to + * fault, but this definition is useful for hardware testing. + */ + gpio_usb_c0_prot_fault_odl: usb_c0_prot_fault_odl { + gpios = <&gpiok 6 (GPIO_OPEN_DRAIN | GPIO_PULL_UP)>; + }; + gpio_sb_1: sb_1 { gpios = <&gpioe 6 GPIO_INPUT_PULL_UP>; no-auto-init; |