From: Andrei Kuchynski <akuchynski@chromium.org>
Date: Mon, 19 Jan 2026 13:18:19 +0000 (+0000)
Subject: platform/chrome: cros_ec_typec: Set no_mode_control flag
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ec128733f68f77af452b0d97d8688cd33cd963e;p=thirdparty%2Flinux.git

platform/chrome: cros_ec_typec: Set no_mode_control flag

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>
Acked-by: Tzung-Bi Shih <tzungbi@kernel.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Link: https://patch.msgid.link/20260119131824.2529334-3-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
index b712bcff6fb26..c0806c562bb93 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)) {