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usb: typec: intel_pmc_mux: Configure Active and Retimer Cable type

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Cable type such as active and retimer received as a part of Thunderbolt3
or Thunderbolt4 cable discover mode VDO needs to be configured in the
thunderbolt alternate mode.

Configuring the register bits for this cable type is changed with Intel
Meteor Lake platform. BIT2 for Retimer/Redriver cable and BIT22 for
Active/Passive cable.

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Utkarsh Patel <utkarsh.h.patel@intel.com>
Link: https://lore.kernel.org/r/20230718024703.1013367-3-utkarsh.h.patel@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Utkarsh Patel 2023-07-17 19:47:03 -07:00 committed by Greg Kroah-Hartman
parent 451054c38b
commit 8405bc521b
1 changed files with 24 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

28
drivers/usb/typec/mux/intel_pmc_mux.c
View file

@ -59,7 +59,7 @@ enum {
};
/* Common Mode Data bits */
#define PMC_USB_ALTMODE_ACTIVE_CABLE BIT(2)
#define PMC_USB_ALTMODE_RETIMER_CABLE BIT(2)
#define PMC_USB_ALTMODE_ORI_SHIFT 1
#define PMC_USB_ALTMODE_UFP_SHIFT 3
@ -71,6 +71,7 @@ enum {
#define PMC_USB_ALTMODE_TBT_TYPE BIT(17)
#define PMC_USB_ALTMODE_CABLE_TYPE BIT(18)
#define PMC_USB_ALTMODE_ACTIVE_LINK BIT(20)
#define PMC_USB_ALTMODE_ACTIVE_CABLE BIT(22)
#define PMC_USB_ALTMODE_FORCE_LSR BIT(23)
#define PMC_USB_ALTMODE_CABLE_SPD(_s_) (((_s_) & GENMASK(2, 0)) << 25)
#define PMC_USB_ALTMODE_CABLE_USB31 1
@ -330,8 +331,18 @@ pmc_usb_mux_tbt(struct pmc_usb_port *port, struct typec_mux_state *state)
if (data->cable_mode & TBT_CABLE_LINK_TRAINING)
req.mode_data |= PMC_USB_ALTMODE_ACTIVE_LINK;
if (data->enter_vdo & TBT_ENTER_MODE_ACTIVE_CABLE)
req.mode_data |= PMC_USB_ALTMODE_ACTIVE_CABLE;
if (acpi_dev_hid_uid_match(port->pmc->iom_adev, "INTC1072", NULL) ||
acpi_dev_hid_uid_match(port->pmc->iom_adev, "INTC1079", NULL)) {
if ((data->enter_vdo & TBT_ENTER_MODE_ACTIVE_CABLE) ||
(data->cable_mode & TBT_CABLE_RETIMER))
req.mode_data |= PMC_USB_ALTMODE_RETIMER_CABLE;
} else {
if (data->enter_vdo & TBT_ENTER_MODE_ACTIVE_CABLE)
req.mode_data |= PMC_USB_ALTMODE_ACTIVE_CABLE;
if (data->cable_mode & TBT_CABLE_RETIMER)
req.mode_data |= PMC_USB_ALTMODE_RETIMER_CABLE;
}
req.mode_data |= PMC_USB_ALTMODE_CABLE_SPD(cable_speed);
@ -370,8 +381,17 @@ pmc_usb_mux_usb4(struct pmc_usb_port *port, struct typec_mux_state *state)
case EUDO_CABLE_TYPE_OPTICAL:
req.mode_data |= PMC_USB_ALTMODE_CABLE_TYPE;
fallthrough;
case EUDO_CABLE_TYPE_RE_TIMER:
if (!acpi_dev_hid_uid_match(port->pmc->iom_adev, "INTC1072", NULL) ||
!acpi_dev_hid_uid_match(port->pmc->iom_adev, "INTC1079", NULL))
req.mode_data |= PMC_USB_ALTMODE_RETIMER_CABLE;
fallthrough;
default:
req.mode_data |= PMC_USB_ALTMODE_ACTIVE_CABLE;
if (acpi_dev_hid_uid_match(port->pmc->iom_adev, "INTC1072", NULL) ||
acpi_dev_hid_uid_match(port->pmc->iom_adev, "INTC1079", NULL))
req.mode_data |= PMC_USB_ALTMODE_RETIMER_CABLE;
else
req.mode_data |= PMC_USB_ALTMODE_ACTIVE_CABLE;
/* Configure data rate to rounded in the case of Active TBT3
* and USB4 cables.