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| author | Keith Short <keithshort@chromium.org> | 2020-11-11 11:04:08 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-11-12 22:35:35 +0000 |
| commit | 53a852f51049643f480f6d394543e4604b973479 (patch) | |
| tree | 9d9250201ed6fc60c006af499dd4bbe9819f3cb3 | |
| parent | 9d6969f0f669da3a367bc8c2da7f65734759b4e4 (diff) | |
| download | chrome-ec-53a852f51049643f480f6d394543e4604b973479.tar.gz | |
volteer: Enabling sourcing of 4.5A on type-C ports
To support USB4, source a total of 4.5A on the type-C ports. This
ensures that if the first device requests 3A (15W), the chromebook
continues to source 3A even after a second device is connected.
BUG=none
BRANCH=firmware-volteer-13521.B-master
TEST=make buildall
TEST=connect device that sinks 15W (5V, 3A), connect a second device and
verify PD contract remains at 15W on the first device.
Signed-off-by: Keith Short <keithshort@chromium.org>
Change-Id: Ibc28a9ce4b445b43ceb55151fb64540a40045798
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2533488
Reviewed-by: Abe Levkoy <alevkoy@chromium.org>
Commit-Queue: Abe Levkoy <alevkoy@chromium.org>
| -rw-r--r-- | board/volteer/board.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/board/volteer/board.h b/board/volteer/board.h index d4be115677..56ae1cb0b4 100644 --- a/board/volteer/board.h +++ b/board/volteer/board.h @@ -79,6 +79,12 @@ /* Enabling USB4 mode */ #define CONFIG_USB_PD_USB4 #define USBC_PORT_C1_BB_RETIMER_I2C_ADDR 0x40 +/* + * For USB4, set the total budget for source current to 4.5A so that the first + * connected port is allowed to source 3A while sourcing 1.5A on other type-C + * ports. + */ +#define CONFIG_USB_PD_MAX_TOTAL_SOURCE_CURRENT 4500 /* USB Type A Features */ #define USB_PORT_COUNT 1 |