[PATCH v4 2/2] pci: pcie: add dependency info to Kconfig

[Albert Zhou <albert.zhou.50@gmail.com>]

Thunderbolt/USB4 PCIe tunneling require the Hotplug feature. This is now
recorded in the help message for HOTPLUG_PCI_PCIE. Further, PCIEPORTBUS
and HOTPLUG_PCI_PCIE are defaulted to Y if USB4 is selected.

Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Albert Zhou <albert.zhou.50@gmail.com>
---
 drivers/pci/pcie/Kconfig | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/pcie/Kconfig b/drivers/pci/pcie/Kconfig
index 788ac8df3f9d..32cc9a31e228 100644
--- a/drivers/pci/pcie/Kconfig
+++ b/drivers/pci/pcie/Kconfig
@@ -4,20 +4,22 @@
 #
 config PCIEPORTBUS
 	bool "PCI Express Port Bus support"
+	default y if USB4
 	help
 	  This enables PCI Express Port Bus support. Users can then enable
 	  support for Native Hot-Plug, Advanced Error Reporting, Power
 	  Management Events, and Downstream Port Containment.
-
 #
 # Include service Kconfig here
 #
 config HOTPLUG_PCI_PCIE
 	bool "PCI Express Hotplug driver"
 	depends on HOTPLUG_PCI && PCIEPORTBUS
+	default y if USB4
 	help
 	  Say Y here if you have a motherboard that supports PCI Express Native
-	  Hotplug
+	  Hotplug. Thunderbolt/USB4 PCIe tunneling needs Native PCIe Hotplug to
+	  be enabled
 
 	  When in doubt, say N.
 
-- 
2.34.1