diff options
| author | Eric Yilun Lin <yllin@chromium.org> | 2022-02-24 16:09:04 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2022-02-24 09:51:03 +0000 |
| commit | 2f73fa6752a877e27b2ca90aa49c3c3768455b42 (patch) | |
| tree | ac2bb02f969d37ba4f1bdea3d08423d335fd0cbb | |
| parent | 0d799bd45ed2dd9025a5dbf61d69ba4d96d4c306 (diff) | |
| download | chrome-ec-2f73fa6752a877e27b2ca90aa49c3c3768455b42.tar.gz | |
corsola: reset USB-C port when USB hub is reset and was sourcing
This is recommend by USB 3.2 spec 10.3.1.1.
BUG=b:203739613
TEST=ensure USB-C port is hardreset when resume from S5 or lower
BRANCH=none
Change-Id: Ia24b2bf4397cd9ca3408f6a2418199fef7848af8
Signed-off-by: Eric Yilun Lin <yllin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3487371
Tested-by: Eric Yilun Lin <yllin@google.com>
Auto-Submit: Eric Yilun Lin <yllin@google.com>
Reviewed-by: Ting Shen <phoenixshen@chromium.org>
Commit-Queue: Ting Shen <phoenixshen@chromium.org>
| -rw-r--r-- | zephyr/projects/corsola/src/usbc_config.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/zephyr/projects/corsola/src/usbc_config.c b/zephyr/projects/corsola/src/usbc_config.c index 026d66fba6..b83209285b 100644 --- a/zephyr/projects/corsola/src/usbc_config.c +++ b/zephyr/projects/corsola/src/usbc_config.c @@ -29,6 +29,7 @@ #include "usb_charge.h" #include "usb_mux.h" #include "usb_pd_tcpm.h" +#include "usb_tc_sm.h" #include "usbc_ppc.h" #include "variant_db_detection.h" @@ -69,6 +70,17 @@ void usb_a0_interrupt(enum gpio_signal signal) for (int i = 0; i < USB_PORT_COUNT; i++) usb_charge_set_mode(i, mode, USB_ALLOW_SUSPEND_CHARGE); + + /* + * Trigger hard reset to cycle Vbus on Type-C ports, recommended by + * USB 3.2 spec 10.3.1.1. + */ + if (gpio_get_level(signal)) { + for (int i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) { + if (tc_is_attached_src(i)) + pd_dpm_request(i, DPM_REQUEST_HARD_RESET_SEND); + } + } } void board_set_charge_limit(int port, int supplier, int charge_ma, |