diff options
| author | RD Babiera <rdbabiera@google.com> | 2024-01-08 19:16:15 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-27 17:38:25 -0800 |
| commit | 231b7318413cef0f8e5c2ca8db1a95b666c25d70 (patch) | |
| tree | 2b0bab45fde86698a4a09bae2b2b39d7315c62fc /include/linux/usb | |
| parent | 7494d4bc8e32a9480fd56b018db8e404b54b24e6 (diff) | |
usb: typec: altmodes: add svdm version info for typec cables
Add typec_cable_set_svdm_version and typec_get_cable_svdm version symbols.
Cables can operate under a lower PD revision than the port partner, and the
max SVDM version is tied to the PD revision. So, typec_cable maintains its
own svdm_version.
Add typec_altmode_get_cable_svdm_version to return the cable's negotiated
svdm_version for altmode drivers to use.
Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240108191620.987785-16-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb')
| -rw-r--r-- | include/linux/usb/typec.h | 3 | ||||
| -rw-r--r-- | include/linux/usb/typec_altmode.h | 10 |
2 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h index 38f93d72fd1b..b35b427561ab 100644 --- a/include/linux/usb/typec.h +++ b/include/linux/usb/typec.h @@ -337,6 +337,9 @@ void typec_partner_set_svdm_version(struct typec_partner *partner, enum usb_pd_svdm_ver svdm_version); int typec_get_negotiated_svdm_version(struct typec_port *port); +int typec_get_cable_svdm_version(struct typec_port *port); +void typec_cable_set_svdm_version(struct typec_cable *cable, enum usb_pd_svdm_ver svdm_version); + struct usb_power_delivery *typec_partner_usb_power_delivery_register(struct typec_partner *partner, struct usb_power_delivery_desc *desc); diff --git a/include/linux/usb/typec_altmode.h b/include/linux/usb/typec_altmode.h index 72ec8058543a..b3c0866ea70f 100644 --- a/include/linux/usb/typec_altmode.h +++ b/include/linux/usb/typec_altmode.h @@ -95,6 +95,16 @@ int typec_cable_altmode_exit(struct typec_altmode *altmode, enum typec_plug_inde int typec_cable_altmode_vdm(struct typec_altmode *altmode, enum typec_plug_index sop, const u32 header, const u32 *vdo, int count); +/** + * typec_altmode_get_cable_svdm_version - Get negotiated SVDM version for cable plug + * @altmode: Handle to the alternate mode + */ +static inline int +typec_altmode_get_cable_svdm_version(struct typec_altmode *altmode) +{ + return typec_get_cable_svdm_version(typec_altmode2port(altmode)); +} + /* * These are the connector states (USB, Safe and Alt Mode) defined in USB Type-C * Specification. SVID specific connector states are expected to follow and |