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| author | Keith Short <keithshort@chromium.org> | 2020-11-11 13:01:30 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-11-12 22:36:14 +0000 |
| commit | 7db13b103f73fe1bcc68b6358dbb02364467b708 (patch) | |
| tree | d98183e1722f73ea2706f96596e673ebc07bb293 | |
| parent | 0e31b208513e9a674602bc67e902dae205874ef8 (diff) | |
| download | chrome-ec-7db13b103f73fe1bcc68b6358dbb02364467b708.tar.gz | |
trondo: 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
Signed-off-by: Keith Short <keithshort@chromium.org>
Change-Id: Iba57c18d9d2bbbb647740cae39af3df74d10ea76
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2533516
Reviewed-by: Abe Levkoy <alevkoy@chromium.org>
| -rw-r--r-- | board/trondo/board.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/board/trondo/board.h b/board/trondo/board.h index 5808e07016..9fbeb2e329 100644 --- a/board/trondo/board.h +++ b/board/trondo/board.h @@ -68,6 +68,12 @@ /* 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 */ |