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| author | Diana Z <dzigterman@chromium.org> | 2021-02-17 11:55:44 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-02-23 20:44:01 +0000 |
| commit | 9d24984ca1cbc4a676e466826059a670c5f83eb1 (patch) | |
| tree | 6a549b1601d867e5e33f649e49fbbae4e23cae27 | |
| parent | d1a52e3f698b79fcae558cde78b3b41f4c0499a6 (diff) | |
| download | chrome-ec-9d24984ca1cbc4a676e466826059a670c5f83eb1.tar.gz | |
TCPMv2: Clarify how to opt out of DPM source-out policy
Add clarification for how a board can turn off the 3.0 A source-out
policy. This can be either because it doesn't support sourcing that
much current, or because it is implementing a board-specific PDO
selection.
BRANCH=None
BUG=b:141690755
TEST=make -j buildall
Signed-off-by: Diana Z <dzigterman@chromium.org>
Change-Id: I5a9d23c115470063a84170cf222845086d86955b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2701891
Reviewed-by: Keith Short <keithshort@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2715845
Tested-by: Abe Levkoy <alevkoy@chromium.org>
Reviewed-by: Abe Levkoy <alevkoy@chromium.org>
Commit-Queue: Abe Levkoy <alevkoy@chromium.org>
| -rw-r--r-- | include/config.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/config.h b/include/config.h index 431e2336b7..56ba85f226 100644 --- a/include/config.h +++ b/include/config.h @@ -5145,6 +5145,9 @@ * defines, and define a default number of 3.0 A ports if not selected. Note * that the functionality of this default of 1 is equivalent to both previous * defines, which only ever allocated one 3.0 A port. + * + * To turn off the TCPMv2 3.0 A current allocation from the DPM, set + * CONFIG_USB_PD_3A_PORTS to 0. */ #ifdef CONFIG_USB_PD_TCPMV2 #if defined(CONFIG_USB_PD_MAX_TOTAL_SOURCE_CURRENT) || \ |