diff options
| author |   Badhri Jagan Sridharan <badhri@google.com> | 2020-07-15 20:41:26 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-21 13:38:21 +0200 |
| commit | b2dcfefc43f783c4462f30507f78b7bb093ee8df (patch) | |
| tree | 4db04e487561c2861009cb56aeabd4cea82e2dd0 | |
| parent | usb: typec: tcpm: Error handling for tcpm_register_partner_altmodes (diff) | |
| download | linux-dev-b2dcfefc43f783c4462f30507f78b7bb093ee8df.tar.xz linux-dev-b2dcfefc43f783c4462f30507f78b7bb093ee8df.zip | |
usb: typec: tcpm: Support bist test data mode for compliance
TCPM supports BIST carried mode. PD compliance tests require
BIST Test Data to be supported as well.
Introducing set_bist_data callback to signal tcpc driver for
configuring the port controller hardware to enable/disable
BIST Test Data mode.
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200716034128.1251728-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpm.c | 11 | ||||
| -rw-r--r-- | include/linux/usb/tcpm.h | 2 |
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index a6d4b03ec250..a04f6c18b11a 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -2748,6 +2748,11 @@ static void tcpm_detach(struct tcpm_port *port) if (!port->attached) return; + if (port->tcpc->set_bist_data) { + tcpm_log(port, "disable BIST MODE TESTDATA"); + port->tcpc->set_bist_data(port->tcpc, false); + } + if (tcpm_port_is_disconnected(port)) port->hard_reset_count = 0; @@ -3557,6 +3562,12 @@ static void run_state_machine(struct tcpm_port *port) case BDO_MODE_CARRIER2: tcpm_pd_transmit(port, TCPC_TX_BIST_MODE_2, NULL); break; + case BDO_MODE_TESTDATA: + if (port->tcpc->set_bist_data) { + tcpm_log(port, "Enable BIST MODE TESTDATA"); + port->tcpc->set_bist_data(port->tcpc, true); + } + break; default: break; } diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h index e7979c01c351..89f58760cf48 100644 --- a/include/linux/usb/tcpm.h +++ b/include/linux/usb/tcpm.h @@ -79,6 +79,7 @@ enum tcpm_transmit_type { * @try_role: Optional; called to set a preferred role * @pd_transmit:Called to transmit PD message * @mux: Pointer to multiplexer data + * @set_bist_data: Turn on/off bist data mode for compliance testing */ struct tcpc_dev { struct fwnode_handle *fwnode; @@ -103,6 +104,7 @@ struct tcpc_dev { int (*try_role)(struct tcpc_dev *dev, int role); int (*pd_transmit)(struct tcpc_dev *dev, enum tcpm_transmit_type type, const struct pd_message *msg); + int (*set_bist_data)(struct tcpc_dev *dev, bool on); }; struct tcpm_port; |