Commit 372a3d0b authored by Badhri Jagan Sridharan's avatar Badhri Jagan Sridharan Committed by Greg Kroah-Hartman
Browse files

usb: typec: tcpci: Add Callback to Usb Communication capable partner 



The USB Communications Capable bit indicates if port
partner is capable of communication over the USB data lines
(e.g. D+/- or SS Tx/Rx). TCPM passes this information for chip specific
operations.

Reviewed-by: default avatarHeikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarBadhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20210202003101.221145-2-badhri@google.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a69bdb28

drivers/usb/typec/tcpm/tcpci.c

+9 −0
Original line number Diff line number Diff line
@@ -255,6 +255,14 @@ static int tcpci_set_polarity(struct tcpc_dev *tcpc, 
			   TCPC_TCPC_CTRL_ORIENTATION : 0);

}



static void tcpci_set_partner_usb_comm_capable(struct tcpc_dev *tcpc, bool capable)

{

	struct tcpci *tcpci = tcpc_to_tcpci(tcpc);



	if (tcpci->data->set_partner_usb_comm_capable)

		tcpci->data->set_partner_usb_comm_capable(tcpci, tcpci->data, capable);

}



static int tcpci_set_vconn(struct tcpc_dev *tcpc, bool enable)

{

	struct tcpci *tcpci = tcpc_to_tcpci(tcpc);
@@ -720,6 +728,7 @@ struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data) 
	tcpci->tcpc.set_bist_data = tcpci_set_bist_data;

	tcpci->tcpc.enable_frs = tcpci_enable_frs;

	tcpci->tcpc.frs_sourcing_vbus = tcpci_frs_sourcing_vbus;

	tcpci->tcpc.set_partner_usb_comm_capable = tcpci_set_partner_usb_comm_capable;



	if (tcpci->data->auto_discharge_disconnect) {

		tcpci->tcpc.enable_auto_vbus_discharge = tcpci_enable_auto_vbus_discharge;

drivers/usb/typec/tcpm/tcpci.h

+6 −0
Original line number Diff line number Diff line
@@ -161,6 +161,10 @@ struct tcpci; 
 *		Optional; Enables TCPC to autonously discharge vbus on disconnect.

 * @vbus_vsafe0v:

 *		optional; Set when TCPC can detect whether vbus is at VSAFE0V.

 * @set_partner_usb_comm_capable:

 *		Optional; The USB Communications Capable bit indicates if port

 *		partner is capable of communication over the USB data lines

 *		(e.g. D+/- or SS Tx/Rx). Called to notify the status of the bit.

 */

struct tcpci_data {

	struct regmap *regmap;
@@ -175,6 +179,8 @@ struct tcpci_data { 
				  enum typec_cc_status cc);

	int (*set_vbus)(struct tcpci *tcpci, struct tcpci_data *data, bool source, bool sink);

	void (*frs_sourcing_vbus)(struct tcpci *tcpci, struct tcpci_data *data);

	void (*set_partner_usb_comm_capable)(struct tcpci *tcpci, struct tcpci_data *data,

					     bool capable);

};



struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data);