[PATCH v3 2/5] platform/chrome: cros_ec_typec: Set no_mode_control flag

Andrei Kuchynski
2025-09-05T14:22:18Z

This flag specifies that the Embedded Controller (EC) must receive explicit
approval from the Application Processor (AP) before initiating Type-C
alternate modes or USB4 mode.

Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
---
drivers/platform/chrome/cros_ec_typec.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
index b712bcff6fb2..c0806c562bb9 100644
--- a/drivers/platform/chrome/cros_ec_typec.c
+++ b/drivers/platform/chrome/cros_ec_typec.c
@@ -491,6 +491,7 @@ static int cros_typec_init_ports(struct cros_typec_data *typec)

cap->driver_data = cros_port;
cap->ops = &cros_typec_usb_mode_ops;
+ cap->no_mode_control = !typec->ap_driven_altmode;

cros_port->port = typec_register_port(dev, cap);
if (IS_ERR(cros_port->port)) {
--
2.51.0.355.g5224444f11-goog