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thunderbolt: Add support for Intel Tiger Lake 

Tiger Lake integrated Thunderbolt/USB4 controller is quite close to
Intel Ice Lake. By default it is still using firmware based connection
manager so we can use most of the Ice Lake flows in Tiger Lake as well.
We check if the firmware connection manager is running and in that case
use it, otherwise use the software based connection manager.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Yehezkel Bernat <yehezkelshb@gmail.com>
This commit is contained in:
Mika Westerberg 2018-09-14 12:58:37 +03:00
parent cbb5494ebc
commit 57d8df68eb
3 changed files with 28 additions and 0 deletions
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22
drivers/thunderbolt/icm.c
View File

@ -1633,6 +1633,15 @@ static void icm_icl_rtd3_veto(struct tb *tb, const struct icm_pkg_header *hdr)
icm_veto_end(tb);
}
static bool icm_tgl_is_supported(struct tb *tb)
{
/*
* If the firmware is not running use software CM. This platform
* should fully support both.
*/
return icm_firmware_running(tb->nhi);
}
static void icm_handle_notification(struct work_struct *work)
{
struct icm_notification *n = container_of(work, typeof(*n), work);
@ -2269,6 +2278,19 @@ struct tb *icm_probe(struct tb_nhi *nhi)
icm->rtd3_veto = icm_icl_rtd3_veto;
tb->cm_ops = &icm_icl_ops;
break;
case PCI_DEVICE_ID_INTEL_TGL_NHI0:
case PCI_DEVICE_ID_INTEL_TGL_NHI1:
icm->is_supported = icm_tgl_is_supported;
icm->driver_ready = icm_icl_driver_ready;
icm->set_uuid = icm_icl_set_uuid;
icm->device_connected = icm_icl_device_connected;
icm->device_disconnected = icm_tr_device_disconnected;
icm->xdomain_connected = icm_tr_xdomain_connected;
icm->xdomain_disconnected = icm_tr_xdomain_disconnected;
icm->rtd3_veto = icm_icl_rtd3_veto;
tb->cm_ops = &icm_icl_ops;
break;
}
if (!icm->is_supported || !icm->is_supported(tb)) {

4
drivers/thunderbolt/nhi.c
View File

@ -1270,6 +1270,10 @@ static struct pci_device_id nhi_ids[] = {
.driver_data = (kernel_ulong_t)&icl_nhi_ops },
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICL_NHI1),
.driver_data = (kernel_ulong_t)&icl_nhi_ops },
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_TGL_NHI0),
.driver_data = (kernel_ulong_t)&icl_nhi_ops },
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_TGL_NHI1),
.driver_data = (kernel_ulong_t)&icl_nhi_ops },
/* Any USB4 compliant host */
{ PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_USB4, ~0) },

2
drivers/thunderbolt/nhi.h
View File

@ -73,6 +73,8 @@ extern const struct tb_nhi_ops icl_nhi_ops;
#define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_BRIDGE 0x15ef
#define PCI_DEVICE_ID_INTEL_ICL_NHI1 0x8a0d
#define PCI_DEVICE_ID_INTEL_ICL_NHI0 0x8a17
#define PCI_DEVICE_ID_INTEL_TGL_NHI0 0x9a1b
#define PCI_DEVICE_ID_INTEL_TGL_NHI1 0x9a1d
#define PCI_CLASS_SERIAL_USB_USB4 0x0c0340