usb: typec: intel_pmc_mux: Configure Displayport Alternate mode 2.1

Mux agent driver can configure cable details such as cable type and
cable speed received as a part of displayport configuration to support
Displayport Alternate mode 2.1.

Reviewed-by: Andy Shevchenko <[e-mail]>
Reviewed-by: Heikki Krogerus <[e-mail]>
Signed-off-by: Utkarsh Patel <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/typec/mux/intel_pmc_mux.c

···
 	return port->orientation - 1;
 }
 
+static bool is_pmc_mux_tbt(struct acpi_device *adev)
+{
+	return acpi_dev_hid_uid_match(adev, "INTC1072", NULL) ||
+	       acpi_dev_hid_uid_match(adev, "INTC1079", NULL);
+}
+
 static int pmc_usb_send_command(struct intel_scu_ipc_dev *ipc, u8 *msg, u32 len)
 {
 	u8 response[4];
···
 
 	req.mode_data |= (state->mode - TYPEC_STATE_MODAL) <<
 			 PMC_USB_ALTMODE_DP_MODE_SHIFT;
+
+	if (!is_pmc_mux_tbt(port->pmc->iom_adev)) {
+		u8 cable_speed = (data->conf & DP_CONF_SIGNALLING_MASK) >>
+				  DP_CONF_SIGNALLING_SHIFT;
+
+		u8 cable_type = (data->conf & DP_CONF_CABLE_TYPE_MASK) >>
+				 DP_CONF_CABLE_TYPE_SHIFT;
+
+		req.mode_data |= PMC_USB_ALTMODE_CABLE_SPD(cable_speed);
+
+		if (cable_type == DP_CONF_CABLE_TYPE_OPTICAL)
+			req.mode_data |= PMC_USB_ALTMODE_CABLE_TYPE;
+		else if (cable_type == DP_CONF_CABLE_TYPE_RE_TIMER)
+			req.mode_data |= PMC_USB_ALTMODE_ACTIVE_CABLE |
+					 PMC_USB_ALTMODE_RETIMER_CABLE;
+		else if (cable_type == DP_CONF_CABLE_TYPE_RE_DRIVER)
+			req.mode_data |= PMC_USB_ALTMODE_ACTIVE_CABLE;
+	}
 
 	ret = pmc_usb_command(port, (void *)&req, sizeof(req));
 	if (ret)