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authorHeikki Krogerus <heikki.krogerus@linux.intel.com>2022-05-02 16:20:57 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-06-12 06:49:47 +0200
commita7cff92f0635c794e2198a69a7ff4ecfe0decab9 (patch)
tree7dd8f528a8b634d5022aac02dfc2a5055f5b59dd /include/linux/usb
parent662a60102c122e44fdaf5c826f7f415eb57d48ad (diff)
usb: typec: USB Power Delivery helpers for ports and partners
All the USB Type-C Connector Class devices are protected, so the drivers can not directly access them. This will adds a few helpers that can be used to link the ports and partners to the correct USB Power Delivery objects. For ports a new optional sysfs attribute file is also added that can be used to select the USB Power Delivery capabilities that the port will advertise to the partner. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20220502132058.86236-3-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb')
-rw-r--r--include/linux/usb/typec.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
index 45e28d14ae56..7751bedcae5d 100644
--- a/include/linux/usb/typec.h
+++ b/include/linux/usb/typec.h
@@ -22,6 +22,8 @@ struct typec_altmode_ops;
struct fwnode_handle;
struct device;
+struct usb_power_delivery;
+
enum typec_port_type {
TYPEC_PORT_SRC,
TYPEC_PORT_SNK,
@@ -223,6 +225,8 @@ struct typec_partner_desc {
* @pr_set: Set Power Role
* @vconn_set: Source VCONN
* @port_type_set: Set port type
+ * @pd_get: Get available USB Power Delivery Capabilities.
+ * @pd_set: Set USB Power Delivery Capabilities.
*/
struct typec_operations {
int (*try_role)(struct typec_port *port, int role);
@@ -231,6 +235,8 @@ struct typec_operations {
int (*vconn_set)(struct typec_port *port, enum typec_role role);
int (*port_type_set)(struct typec_port *port,
enum typec_port_type type);
+ struct usb_power_delivery **(*pd_get)(struct typec_port *port);
+ int (*pd_set)(struct typec_port *port, struct usb_power_delivery *pd);
};
enum usb_pd_svdm_ver {
@@ -250,6 +256,7 @@ enum usb_pd_svdm_ver {
* @accessory: Supported Accessory Modes
* @fwnode: Optional fwnode of the port
* @driver_data: Private pointer for driver specific info
+ * @pd: Optional USB Power Delivery Support
* @ops: Port operations vector
*
* Static capabilities of a single USB Type-C port.
@@ -267,6 +274,8 @@ struct typec_capability {
struct fwnode_handle *fwnode;
void *driver_data;
+ struct usb_power_delivery *pd;
+
const struct typec_operations *ops;
};
@@ -318,4 +327,8 @@ 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_port_set_usb_power_delivery(struct typec_port *port, struct usb_power_delivery *pd);
+int typec_partner_set_usb_power_delivery(struct typec_partner *partner,
+ struct usb_power_delivery *pd);
+
#endif /* __LINUX_USB_TYPEC_H */