thunderbolt: Introduce tb_switch_is_ice_lake()

This is needed to differentiate Ice Lake from other controllers.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index 664a861..1d5ee4c 100644 (file)
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -758,6 +758,18 @@ static inline bool tb_switch_is_titan_ridge(const struct tb_switch *sw)
        return false;
 }
 
+static inline bool tb_switch_is_ice_lake(const struct tb_switch *sw)
+{
+       if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) {
+               switch (sw->config.device_id) {
+               case PCI_DEVICE_ID_INTEL_ICL_NHI0:
+               case PCI_DEVICE_ID_INTEL_ICL_NHI1:
+                       return true;
+               }
+       }
+       return false;
+}
+
 /**
  * tb_switch_is_usb4() - Is the switch USB4 compliant
  * @sw: Switch to check