| Message ID | 20201008061556.1402293-10-badhri@google.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | TCPM support for FRS and AutoDischarge Disconnect | expand |
On Wed, Oct 07, 2020 at 11:15:50PM -0700, Badhri Jagan Sridharan wrote: > During FRS hardware autonomously starts to source vbus. Provide > callback to perform chip specific operations. > > Signed-off-by: Badhri Jagan Sridharan <badhri@google.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> > --- > Introduced in v9. No chages since then. > --- > drivers/usb/typec/tcpm/tcpm.c | 9 +++++++++ > include/linux/usb/tcpm.h | 4 ++++ > 2 files changed, 13 insertions(+) > > diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c > index 55535c4f66bf..02b7f623f584 100644 > --- a/drivers/usb/typec/tcpm/tcpm.c > +++ b/drivers/usb/typec/tcpm/tcpm.c > @@ -4090,7 +4090,16 @@ static void _tcpm_pd_vbus_on(struct tcpm_port *port) > case SRC_TRY_DEBOUNCE: > /* Do nothing, waiting for sink detection */ > break; > + case FR_SWAP_SEND: > + case FR_SWAP_SEND_TIMEOUT: > + case FR_SWAP_SNK_SRC_TRANSITION_TO_OFF: > + case FR_SWAP_SNK_SRC_SOURCE_VBUS_APPLIED: > + if (port->tcpc->frs_sourcing_vbus) > + port->tcpc->frs_sourcing_vbus(port->tcpc); > + break; > case FR_SWAP_SNK_SRC_NEW_SINK_READY: > + if (port->tcpc->frs_sourcing_vbus) > + port->tcpc->frs_sourcing_vbus(port->tcpc); > tcpm_set_state(port, FR_SWAP_SNK_SRC_SOURCE_VBUS_APPLIED, 0); > break; > > diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h > index 09762d26fa0c..7303f518ba49 100644 > --- a/include/linux/usb/tcpm.h > +++ b/include/linux/usb/tcpm.h > @@ -83,6 +83,9 @@ enum tcpm_transmit_type { > * Optional; Called to enable/disable PD 3.0 fast role swap. > * Enabling frs is accessory dependent as not all PD3.0 > * accessories support fast role swap. > + * @frs_sourcing_vbus: > + * Optional; Called to notify that vbus is now being sourced. > + * Low level drivers can perform chip specific operations, if any. > */ > struct tcpc_dev { > struct fwnode_handle *fwnode; > @@ -109,6 +112,7 @@ struct tcpc_dev { > const struct pd_message *msg); > int (*set_bist_data)(struct tcpc_dev *dev, bool on); > int (*enable_frs)(struct tcpc_dev *dev, bool enable); > + void (*frs_sourcing_vbus)(struct tcpc_dev *dev); > }; > > struct tcpm_port; > -- > 2.28.0.806.g8561365e88-goog thanks,
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 55535c4f66bf..02b7f623f584 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -4090,7 +4090,16 @@ static void _tcpm_pd_vbus_on(struct tcpm_port *port) case SRC_TRY_DEBOUNCE: /* Do nothing, waiting for sink detection */ break; + case FR_SWAP_SEND: + case FR_SWAP_SEND_TIMEOUT: + case FR_SWAP_SNK_SRC_TRANSITION_TO_OFF: + case FR_SWAP_SNK_SRC_SOURCE_VBUS_APPLIED: + if (port->tcpc->frs_sourcing_vbus) + port->tcpc->frs_sourcing_vbus(port->tcpc); + break; case FR_SWAP_SNK_SRC_NEW_SINK_READY: + if (port->tcpc->frs_sourcing_vbus) + port->tcpc->frs_sourcing_vbus(port->tcpc); tcpm_set_state(port, FR_SWAP_SNK_SRC_SOURCE_VBUS_APPLIED, 0); break; diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h index 09762d26fa0c..7303f518ba49 100644 --- a/include/linux/usb/tcpm.h +++ b/include/linux/usb/tcpm.h @@ -83,6 +83,9 @@ enum tcpm_transmit_type { * Optional; Called to enable/disable PD 3.0 fast role swap. * Enabling frs is accessory dependent as not all PD3.0 * accessories support fast role swap. + * @frs_sourcing_vbus: + * Optional; Called to notify that vbus is now being sourced. + * Low level drivers can perform chip specific operations, if any. */ struct tcpc_dev { struct fwnode_handle *fwnode; @@ -109,6 +112,7 @@ struct tcpc_dev { const struct pd_message *msg); int (*set_bist_data)(struct tcpc_dev *dev, bool on); int (*enable_frs)(struct tcpc_dev *dev, bool enable); + void (*frs_sourcing_vbus)(struct tcpc_dev *dev); }; struct tcpm_port;
During FRS hardware autonomously starts to source vbus. Provide callback to perform chip specific operations. Signed-off-by: Badhri Jagan Sridharan <badhri@google.com> --- Introduced in v9. No chages since then. --- drivers/usb/typec/tcpm/tcpm.c | 9 +++++++++ include/linux/usb/tcpm.h | 4 ++++ 2 files changed, 13 insertions(+)