diff options
| author | Badhri Jagan Sridharan <badhri@google.com> | 2021-02-01 16:31:00 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-02 17:38:05 +0100 |
| commit | 372a3d0b6b1e92d8138eeaed7366845a235475ef (patch) | |
| tree | a6c37ae7e18c2e37358e38c62dd8e9086824ab13 /drivers/usb | |
| parent | a69bdb283f79949b67632878ef1822badae9299f (diff) | |
| download | linux-372a3d0b6b1e92d8138eeaed7366845a235475ef.tar.bz2 | |
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: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20210202003101.221145-2-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpci.c | 9 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpci.h | 6 |
2 files changed, 15 insertions, 0 deletions
diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c index f676abab044b..a27deb0b5f03 100644 --- a/drivers/usb/typec/tcpm/tcpci.c +++ b/drivers/usb/typec/tcpm/tcpci.c @@ -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; diff --git a/drivers/usb/typec/tcpm/tcpci.h b/drivers/usb/typec/tcpm/tcpci.h index c3c7d07d9b4e..57b6e24e0a0c 100644 --- a/drivers/usb/typec/tcpm/tcpci.h +++ b/drivers/usb/typec/tcpm/tcpci.h @@ -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); |