| Message ID | 20241213153543.v5.3.I794566684ab2965e209f326b08232006eff333f8@changeid (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Thunderbolt and DP altmode support for cros-ec-typec | expand |
On Fri, Dec 13, 2024 at 03:35:44PM -0800, Abhishek Pandit-Subedi wrote: > The active property of port altmode should be writable (to prevent or > allow partner altmodes from entering) and needs to be part of > typec_altmode_desc so we can initialize the port to an inactive state if > desired. > > Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> > --- > > Changes in v5: > - Extract port altmode ".active" changes to its own patch > > drivers/usb/typec/class.c | 5 +++-- > include/linux/usb/typec.h | 2 ++ > 2 files changed, 5 insertions(+), 2 deletions(-) > > diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c > index febe453b96be..b5e67a57762c 100644 > --- a/drivers/usb/typec/class.c > +++ b/drivers/usb/typec/class.c > @@ -458,7 +458,8 @@ static umode_t typec_altmode_attr_is_visible(struct kobject *kobj, > struct typec_altmode *adev = to_typec_altmode(kobj_to_dev(kobj)); > > if (attr == &dev_attr_active.attr) > - if (!adev->ops || !adev->ops->activate) > + if (!is_typec_port(adev->dev.parent) && > + (!adev->ops || !adev->ops->activate)) > return 0444; > > return attr->mode; > @@ -563,7 +564,7 @@ typec_register_altmode(struct device *parent, > > if (is_port) { > alt->attrs[3] = &dev_attr_supported_roles.attr; > - alt->adev.active = true; /* Enabled by default */ > + alt->adev.active = !desc->inactive; /* Enabled by default */ > } > > sprintf(alt->group_name, "mode%d", desc->mode); > diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h > index d616b8807000..252af3f77039 100644 > --- a/include/linux/usb/typec.h > +++ b/include/linux/usb/typec.h > @@ -140,6 +140,7 @@ int typec_cable_set_identity(struct typec_cable *cable); > * @mode: Index of the Mode > * @vdo: VDO returned by Discover Modes USB PD command > * @roles: Only for ports. DRP if the mode is available in both roles > + * @inactive: Only for ports. Make this port inactive (default is active). > * > * Description of an Alternate Mode which a connector, cable plug or partner > * supports. > @@ -150,6 +151,7 @@ struct typec_altmode_desc { > u32 vdo; > /* Only used with ports */ > enum typec_port_data roles; > + bool inactive; > }; > > void typec_partner_set_pd_revision(struct typec_partner *partner, u16 pd_revision); > -- > 2.47.1.613.gc27f4b7a9f-goog
On Fri, Dec 13, 2024 at 03:35:44PM -0800, Abhishek Pandit-Subedi wrote: > The active property of port altmode should be writable (to prevent or > allow partner altmodes from entering) and needs to be part of > typec_altmode_desc so we can initialize the port to an inactive state if > desired. > > Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org> Reviewed-by: Benson Leung <bleung@chromium.org> > --- > > Changes in v5: > - Extract port altmode ".active" changes to its own patch > > drivers/usb/typec/class.c | 5 +++-- > include/linux/usb/typec.h | 2 ++ > 2 files changed, 5 insertions(+), 2 deletions(-) > > diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c > index febe453b96be..b5e67a57762c 100644 > --- a/drivers/usb/typec/class.c > +++ b/drivers/usb/typec/class.c > @@ -458,7 +458,8 @@ static umode_t typec_altmode_attr_is_visible(struct kobject *kobj, > struct typec_altmode *adev = to_typec_altmode(kobj_to_dev(kobj)); > > if (attr == &dev_attr_active.attr) > - if (!adev->ops || !adev->ops->activate) > + if (!is_typec_port(adev->dev.parent) && > + (!adev->ops || !adev->ops->activate)) > return 0444; > > return attr->mode; > @@ -563,7 +564,7 @@ typec_register_altmode(struct device *parent, > > if (is_port) { > alt->attrs[3] = &dev_attr_supported_roles.attr; > - alt->adev.active = true; /* Enabled by default */ > + alt->adev.active = !desc->inactive; /* Enabled by default */ > } > > sprintf(alt->group_name, "mode%d", desc->mode); > diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h > index d616b8807000..252af3f77039 100644 > --- a/include/linux/usb/typec.h > +++ b/include/linux/usb/typec.h > @@ -140,6 +140,7 @@ int typec_cable_set_identity(struct typec_cable *cable); > * @mode: Index of the Mode > * @vdo: VDO returned by Discover Modes USB PD command > * @roles: Only for ports. DRP if the mode is available in both roles > + * @inactive: Only for ports. Make this port inactive (default is active). > * > * Description of an Alternate Mode which a connector, cable plug or partner > * supports. > @@ -150,6 +151,7 @@ struct typec_altmode_desc { > u32 vdo; > /* Only used with ports */ > enum typec_port_data roles; > + bool inactive; > }; > > void typec_partner_set_pd_revision(struct typec_partner *partner, u16 pd_revision); > -- > 2.47.1.613.gc27f4b7a9f-goog > >
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index febe453b96be..b5e67a57762c 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -458,7 +458,8 @@ static umode_t typec_altmode_attr_is_visible(struct kobject *kobj, struct typec_altmode *adev = to_typec_altmode(kobj_to_dev(kobj)); if (attr == &dev_attr_active.attr) - if (!adev->ops || !adev->ops->activate) + if (!is_typec_port(adev->dev.parent) && + (!adev->ops || !adev->ops->activate)) return 0444; return attr->mode; @@ -563,7 +564,7 @@ typec_register_altmode(struct device *parent, if (is_port) { alt->attrs[3] = &dev_attr_supported_roles.attr; - alt->adev.active = true; /* Enabled by default */ + alt->adev.active = !desc->inactive; /* Enabled by default */ } sprintf(alt->group_name, "mode%d", desc->mode); diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h index d616b8807000..252af3f77039 100644 --- a/include/linux/usb/typec.h +++ b/include/linux/usb/typec.h @@ -140,6 +140,7 @@ int typec_cable_set_identity(struct typec_cable *cable); * @mode: Index of the Mode * @vdo: VDO returned by Discover Modes USB PD command * @roles: Only for ports. DRP if the mode is available in both roles + * @inactive: Only for ports. Make this port inactive (default is active). * * Description of an Alternate Mode which a connector, cable plug or partner * supports. @@ -150,6 +151,7 @@ struct typec_altmode_desc { u32 vdo; /* Only used with ports */ enum typec_port_data roles; + bool inactive; }; void typec_partner_set_pd_revision(struct typec_partner *partner, u16 pd_revision);
The active property of port altmode should be writable (to prevent or allow partner altmodes from entering) and needs to be part of typec_altmode_desc so we can initialize the port to an inactive state if desired. Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org> --- Changes in v5: - Extract port altmode ".active" changes to its own patch drivers/usb/typec/class.c | 5 +++-- include/linux/usb/typec.h | 2 ++ 2 files changed, 5 insertions(+), 2 deletions(-)