kernel/linux.git/drivers/thunderbolt/switch.c, branch v6.18.21

thunderbolt: Update switch.c function documentation

2025-09-17T05:32:59+00:00

Make switch.c function documentation compliant with current kernel-doc standards. No functional changes. Signed-off-by: Alan Borzeszkowski Signed-off-by: Mika Westerberg

Merge tag 'v6.16-rc7' into usb-next

2025-07-21T08:55:57+00:00

We need the USB/Thunderbolt fixes in here for other patches to be on top of. Signed-off-by: Greg Kroah-Hartman

thunderbolt: Fix typos in documentation comments

2025-06-23T09:56:18+00:00

Fixes two minor typos in Thunderbolt driver comments: Correct "passwd" -> "passed" in nvm.c. Correct "boths" -> "both" in switch.c. Signed-off-by: Alok Tiwari Signed-off-by: Mika Westerberg

thunderbolt: Fix bit masking in tb_dp_port_set_hops()

2025-06-23T09:52:08+00:00

The tb_dp_port_set_hops() function was incorrectly clearing ADP_DP_CS_1_AUX_RX_HOPID_MASK twice. According to the function's purpose, it should clear both TX and RX AUX HopID fields. Replace the first instance with ADP_DP_CS_1_AUX_TX_HOPID_MASK to ensure proper configuration of both AUX directions. Fixes: 98176380cbe5 ("thunderbolt: Convert DP adapter register names to follow the USB4 spec") Cc: stable@vger.kernel.org Signed-off-by: Alok Tiwari Signed-off-by: Mika Westerberg

thunderbolt: Fix wake on connect at runtime

2025-06-23T09:46:19+00:00

commit 1a760d10ded37 ("thunderbolt: Fix a logic error in wake on connect") fixated on the USB4 port sysfs wakeup file not working properly to control policy, but it had an unintended side effect that the sysfs file controls policy both at runtime and at suspend time. The sysfs file is supposed to only control behavior while system is suspended. Pass whether programming a port for runtime into usb4_switch_set_wake() and if runtime then ignore the value in the sysfs file. Cc: stable@vger.kernel.org Reported-by: Alexander Kovacs Tested-by: Alexander Kovacs Fixes: 1a760d10ded37 ("thunderbolt: Fix a logic error in wake on connect") Signed-off-by: Mario Limonciello Signed-off-by: Mika Westerberg

thunderbolt: Use wake on connect and disconnect over suspend

2025-04-11T11:18:33+00:00

Wake on connect is useful for being able to wake up a suspended laptop without opening the lid by plugging into a dock. Add the default policy to the USB4 router when wakeup is enabled for the router. Behavior for individual ports can be controlled by port wakeup settings. Cc: Opal Voravootivat Cc: Raul Rangel Cc: Utkarsh Patel Cc: Richard Gong Cc: Sanath S Link: https://lore.kernel.org/linux-usb/20250410042723.GU3152277@black.fi.intel.com/T/#m0249e8c0e1c77ec92a44a3d6c8b4a8e5a9b7114e Signed-off-by: Mario Limonciello Signed-off-by: Mika Westerberg

thunderbolt: Mark XDomain as unplugged when router is removed

2024-08-06T05:01:10+00:00

I noticed that when we do discrete host router NVM upgrade and it gets hot-removed from the PCIe side as a result of NVM firmware authentication, if there is another host connected with enabled paths we hang in tearing them down. This is due to fact that the Thunderbolt networking driver also tries to cleanup the paths and ends up blocking in tb_disconnect_xdomain_paths() waiting for the domain lock. However, at this point we already cleaned the paths in tb_stop() so there is really no need for tb_disconnect_xdomain_paths() to do that anymore. Furthermore it already checks if the XDomain is unplugged and bails out early so take advantage of that and mark the XDomain as unplugged when we remove the parent router. Cc: stable@vger.kernel.org Signed-off-by: Mika Westerberg

thunderbolt: Avoid notify PM core about runtime PM resume

2024-04-10T07:49:58+00:00

Currently we notify PM core about occurred wakes after any resume. This is not actually needed after resume from runtime suspend. Hence, notify PM core about occurred wakes only after resume from system sleep. Also, if the wake occurred in USB4 router upstream port, we don't notify the PM core about it since it is not actually needed and can cause unexpected autowake (e.g. if /sys/power/wakeup_count is used). While there add the missing kernel-doc for tb_switch_resume(). Signed-off-by: Gil Fine Cc: stable@vger.kernel.org Signed-off-by: Mika Westerberg

thunderbolt: Fix wake configurations after device unplug

2024-04-10T07:49:58+00:00

Currently we don't configure correctly the wake events after unplug of device router. What can happen is that the downstream ports of host router will be configured to wake on: USB4-wake and wake-on-disconnect, but not on wake-on-connect. This may cause the later plugged device not to wake the domain and fail in enumeration. Fix this by clearing downstream port's "USB4 Port is Configured" bit, after unplug of a device router. Signed-off-by: Gil Fine Cc: stable@vger.kernel.org Signed-off-by: Mika Westerberg

Merge tag 'usb-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2024-03-21T19:35:20+00:00

Pull USB / Thunderbolt updates from Greg KH: "Here is the big set of USB and Thunderbolt changes for 6.9-rc1. Lots of tiny changes and forward progress to support new hardware and better support for existing devices. Included in here are: - Thunderbolt (i.e. USB4) updates for newer hardware and uses as more people start to use the hardware - default USB authentication mode Kconfig and documentation update to make it more obvious what is going on - USB typec updates and enhancements - usual dwc3 driver updates - usual xhci driver updates - function USB (i.e. gadget) driver updates and additions - new device ids for lots of drivers - loads of other small updates, full details in the shortlog All of these, including a "last minute regression fix" have been in linux-next with no reported issues" * tag 'usb-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (185 commits) usb: usb-acpi: Fix oops due to freeing uninitialized pld pointer usb: gadget: net2272: Use irqflags in the call to net2272_probe_fin usb: gadget: tegra-xudc: Fix USB3 PHY retrieval logic phy: tegra: xusb: Add API to retrieve the port number of phy USB: gadget: pxa27x_udc: Remove unused of_gpio.h usb: gadget/snps_udc_plat: Remove unused of_gpio.h usb: ohci-pxa27x: Remove unused of_gpio.h usb: sl811-hcd: only defined function checkdone if QUIRK2 is defined usb: Clarify expected behavior of dev_bin_attrs_are_visible() xhci: Allow RPM on the USB controller (1022:43f7) by default usb: isp1760: remove SLAB_MEM_SPREAD flag usage usb: misc: onboard_hub: use pointer consistently in the probe function usb: gadget: fsl: Increase size of name buffer for endpoints usb: gadget: fsl: Add of device table to enable module autoloading usb: typec: tcpm: add support to set tcpc connector orientatition usb: typec: tcpci: add generic tcpci fallback compatible dt-bindings: usb: typec-tcpci: add tcpci fallback binding usb: gadget: fsl-udc: Replace custom log wrappers by dev_{err,warn,dbg,vdbg} usb: core: Set connect_type of ports based on DT node dt-bindings: usb: Add downstream facing ports to realtek binding ...