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>
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@ -2748,6 +2748,11 @@ static void tcpm_detach(struct tcpm_port *port)
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if (!port->attached)
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return;
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if (port->tcpc->set_bist_data) {
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tcpm_log(port, "disable BIST MODE TESTDATA");
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port->tcpc->set_bist_data(port->tcpc, false);
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}
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if (tcpm_port_is_disconnected(port))
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port->hard_reset_count = 0;
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@ -3557,6 +3562,12 @@ static void run_state_machine(struct tcpm_port *port)
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case BDO_MODE_CARRIER2:
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tcpm_pd_transmit(port, TCPC_TX_BIST_MODE_2, NULL);
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break;
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case BDO_MODE_TESTDATA:
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if (port->tcpc->set_bist_data) {
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tcpm_log(port, "Enable BIST MODE TESTDATA");
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port->tcpc->set_bist_data(port->tcpc, true);
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}
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break;
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default:
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break;
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}
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@ -79,6 +79,7 @@ enum tcpm_transmit_type {
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* @try_role: Optional; called to set a preferred role
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* @pd_transmit:Called to transmit PD message
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* @mux: Pointer to multiplexer data
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* @set_bist_data: Turn on/off bist data mode for compliance testing
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*/
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struct tcpc_dev {
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struct fwnode_handle *fwnode;
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@ -103,6 +104,7 @@ struct tcpc_dev {
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int (*try_role)(struct tcpc_dev *dev, int role);
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int (*pd_transmit)(struct tcpc_dev *dev, enum tcpm_transmit_type type,
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const struct pd_message *msg);
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int (*set_bist_data)(struct tcpc_dev *dev, bool on);
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};
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struct tcpm_port;
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