diff options
| author | Diana Z <dzigterman@chromium.org> | 2021-02-03 15:11:34 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-02-16 19:25:05 +0000 |
| commit | 874bf8213bf7012718e36112920c891c4504bea0 (patch) | |
| tree | 11b2f04f2cb7e564cbeda793bb7fb335de1d28ea /include/usb_pd_dpm.h | |
| parent | fc0bc62708cb39fb4ad0d7cc25cf25f3742446b5 (diff) | |
| download | chrome-ec-874bf8213bf7012718e36112920c891c4504bea0.tar.gz | |
TCPMv2: Allocate FRS ports 3.0 A when needed
When there are no PD sinks requiring 3.0 A, any FRS ports which require
that much current will have FRS detection enabled. If a PD sink
requiring 3.0 A is attached, then FRS detection will be disabled on that
port again.
FRS port partners which require only USB or 1.5 A of current will always
have FRS detection enabled.
BRANCH=None
BUG=b:141690755
TEST=on volteer-based system, verify:
- FRS source partners requiring 1.5 A or less always have FRS detection
enabled
- FRS detection is disabled on detach
- FRS source partner requiring 3.0 A has FRS detection enabled if no PD
sink needing 3.0 A is present
- Plugging in a 3.0 A PD sink disables FRS detection for the 3.0 A FRS
partner
- Unplugging a 3.0 A PD sink enables FRS detection for the 3.0 A FRS
partner
- When FRS occurs on 3.0 A port with detection enabled, partner is
offered appropriate starting current in first source caps
Signed-off-by: Diana Z <dzigterman@chromium.org>
Change-Id: Ib067ac7c1c2f4a6e64f36aeffd1b8dde5cb93760
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2676084
Reviewed-by: Keith Short <keithshort@chromium.org>
Reviewed-by: Eric Herrmann <eherrmann@chromium.org>
Tested-by: Eric Herrmann <eherrmann@chromium.org>
Diffstat (limited to 'include/usb_pd_dpm.h')
| -rw-r--r-- | include/usb_pd_dpm.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/usb_pd_dpm.h b/include/usb_pd_dpm.h index d0e49a7383..aa9608f9b4 100644 --- a/include/usb_pd_dpm.h +++ b/include/usb_pd_dpm.h @@ -76,6 +76,14 @@ void dpm_evaluate_sink_fixed_pdo(int port, uint32_t vsafe5v_pdo); void dpm_remove_sink(int port); /* + * Remove this port as a source, and reallocate reserved FRS maximum current + * as needed. + * + * @param port USB-C port number + */ +void dpm_remove_source(int port); + +/* * Return the appropriate Source Capability PDO to offer this port * * @param src_pdo Will point to appropriate PDO to offer |