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>

diff --git a/drivers/thunderbolt/icm.c b/drivers/thunderbolt/icm.c
index fbbe32c..ffcc8c3 100644 (file)
--- a/drivers/thunderbolt/icm.c
+++ b/drivers/thunderbolt/icm.c
@@ -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)) {

diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index 1be491e..2e51d06 100644 (file)
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -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) },

diff --git a/drivers/thunderbolt/nhi.h b/drivers/thunderbolt/nhi.h
index 5d276ee..80162e4 100644 (file)
--- a/drivers/thunderbolt/nhi.h
+++ b/drivers/thunderbolt/nhi.h
@@ -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