diff options
| author | Andrei Kuchynski <akuchynski@chromium.org> | 2026-01-19 13:18:18 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-23 17:18:01 +0100 |
| commit | dfd7b082c0a22ff0d697605a2a6bb62d9a4730a6 (patch) | |
| tree | 99c2cfc76d26b6327b108b3483fb163e7990f38c /drivers/usb | |
| parent | 1360eb44d2af7baa9357a7c4dd4952c6dd5e9d6f (diff) | |
usb: typec: Add mode_control field to port property
This new field in the port properties dictates whether the Platform Policy
Manager (PPM) allows the OS Policy Manager (OPM) to change the currently
active, negotiated alternate mode.
Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Link: https://patch.msgid.link/20260119131824.2529334-2-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/typec/class.c | 9 | ||||
| -rw-r--r-- | drivers/usb/typec/class.h | 1 |
2 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index c4ff4310ff58..0f12d6120511 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -457,11 +457,13 @@ static umode_t typec_altmode_attr_is_visible(struct kobject *kobj, struct attribute *attr, int n) { struct typec_altmode *adev = to_typec_altmode(kobj_to_dev(kobj)); + struct typec_port *port = typec_altmode2port(adev); if (attr == &dev_attr_active.attr) - if (!is_typec_port(adev->dev.parent) && - (!adev->ops || !adev->ops->activate)) - return 0444; + if (!is_typec_port(adev->dev.parent)) { + if (!port->mode_control || !adev->ops || !adev->ops->activate) + return 0444; + } return attr->mode; } @@ -2708,6 +2710,7 @@ struct typec_port *typec_register_port(struct device *parent, } port->pd = cap->pd; + port->mode_control = !cap->no_mode_control; ret = device_add(&port->dev); if (ret) { diff --git a/drivers/usb/typec/class.h b/drivers/usb/typec/class.h index db2fe96c48ff..2e89a83c2eb7 100644 --- a/drivers/usb/typec/class.h +++ b/drivers/usb/typec/class.h @@ -62,6 +62,7 @@ struct typec_port { struct mutex partner_link_lock; enum typec_orientation orientation; + bool mode_control; struct typec_switch *sw; struct typec_mux *mux; struct typec_retimer *retimer; |