Commit a57d253f authored by Badhri Jagan Sridharan's avatar Badhri Jagan Sridharan Committed by Greg Kroah-Hartman
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usb: typec: tcpci: frs sourcing vbus callback 



During FRS hardware autonomously starts to source vbus. Provide
callback to perform chip specific operations.

Signed-off-by: default avatarBadhri Jagan Sridharan <badhri@google.com>
Reviewed-by: default avatarHeikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201029063138.1429760-6-badhri@google.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a30a00e3

drivers/usb/typec/tcpm/tcpci.c

+9 −0
Original line number Diff line number Diff line
@@ -284,6 +284,14 @@ static int tcpci_enable_frs(struct tcpc_dev *dev, bool enable) 
	return ret;

}



static void tcpci_frs_sourcing_vbus(struct tcpc_dev *dev)

{

	struct tcpci *tcpci = tcpc_to_tcpci(dev);



	if (tcpci->data->frs_sourcing_vbus)

		tcpci->data->frs_sourcing_vbus(tcpci, tcpci->data);

}



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

{

	struct tcpci *tcpci = tcpc_to_tcpci(tcpc);
@@ -628,6 +636,7 @@ struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data) 
	tcpci->tcpc.pd_transmit = tcpci_pd_transmit;

	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;



	err = tcpci_parse_config(tcpci);

	if (err < 0)

drivers/usb/typec/tcpm/tcpci.h

+4 −0
Original line number Diff line number Diff line
@@ -143,6 +143,9 @@ 
/*

 * @TX_BUF_BYTE_x_hidden

 *		optional; Set when TX_BUF_BYTE_x can only be accessed through I2C_WRITE_BYTE_COUNT.

 * @frs_sourcing_vbus:

 *		Optional; Callback to perform chip specific operations when FRS

 *		is sourcing vbus.

 */

struct tcpci;

struct tcpci_data {
@@ -154,6 +157,7 @@ struct tcpci_data { 
	int (*start_drp_toggling)(struct tcpci *tcpci, struct tcpci_data *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);

};



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