<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/drivers/thunderbolt, branch v6.9-rc2</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>Merge tag 'usb-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb</title>
<updated>2024-03-21T19:35:20+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2024-03-21T19:35:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=e09bf86f3d53ecf4da61163d88036c4c16419d70'/>
<id>e09bf86f3d53ecf4da61163d88036c4c16419d70</id>
<content type='text'>
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
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
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
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'thunderbolt-for-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-next</title>
<updated>2024-03-02T19:14:03+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@linuxfoundation.org</email>
</author>
<published>2024-03-02T19:14:03+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=73473b3033a633d640ef065aa98d60fbe2d40ddb'/>
<id>73473b3033a633d640ef065aa98d60fbe2d40ddb</id>
<content type='text'>
Mika writes:

thunderbolt: Changes for v6.9 merge window

This includes following USB4/Thunderbolt changes for the v6.9 merge
window:

  - Reset the topology also for USB4 v1 routers on driver load
  - DisplayPort tunneling and bandwidth allocation mode improvements
  - Tracepoint support for the control channel
  - Couple of minor fixes and cleanups.

All these have been in linux-next with no reported issues.

* tag 'thunderbolt-for-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt: (23 commits)
  thunderbolt: Constify the struct device_type usage
  thunderbolt: Add trace events support for the control channel
  thunderbolt: Keep the domain powered when USB4 port is in redrive mode
  thunderbolt: Improve DisplayPort tunnel setup process to be more robust
  thunderbolt: Calculate DisplayPort tunnel bandwidth after DPRX capabilities read
  thunderbolt: Reserve released DisplayPort bandwidth for a group for 10 seconds
  thunderbolt: Introduce tb_tunnel_direction_downstream()
  thunderbolt: Re-order bandwidth group functions
  thunderbolt: Fail the failed bandwidth request properly
  thunderbolt: Log an error if DPTX request is not cleared
  thunderbolt: Handle bandwidth allocation mode disable request
  thunderbolt: Re-calculate estimated bandwidth when allocation mode is enabled
  thunderbolt: Use DP_LOCAL_CAP for maximum bandwidth calculation
  thunderbolt: Correct typo in host_reset parameter
  thunderbolt: Skip discovery also in USB4 v2 host
  thunderbolt: Reset only non-USB4 host routers in resume
  thunderbolt: Remove usage of the deprecated ida_simple_xx() API
  thunderbolt: Fix rollback in tb_port_lane_bonding_enable() for lane 1
  thunderbolt: Fix XDomain rx_lanes_show and tx_lanes_show
  thunderbolt: Reset topology created by the boot firmware
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Mika writes:

thunderbolt: Changes for v6.9 merge window

This includes following USB4/Thunderbolt changes for the v6.9 merge
window:

  - Reset the topology also for USB4 v1 routers on driver load
  - DisplayPort tunneling and bandwidth allocation mode improvements
  - Tracepoint support for the control channel
  - Couple of minor fixes and cleanups.

All these have been in linux-next with no reported issues.

* tag 'thunderbolt-for-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt: (23 commits)
  thunderbolt: Constify the struct device_type usage
  thunderbolt: Add trace events support for the control channel
  thunderbolt: Keep the domain powered when USB4 port is in redrive mode
  thunderbolt: Improve DisplayPort tunnel setup process to be more robust
  thunderbolt: Calculate DisplayPort tunnel bandwidth after DPRX capabilities read
  thunderbolt: Reserve released DisplayPort bandwidth for a group for 10 seconds
  thunderbolt: Introduce tb_tunnel_direction_downstream()
  thunderbolt: Re-order bandwidth group functions
  thunderbolt: Fail the failed bandwidth request properly
  thunderbolt: Log an error if DPTX request is not cleared
  thunderbolt: Handle bandwidth allocation mode disable request
  thunderbolt: Re-calculate estimated bandwidth when allocation mode is enabled
  thunderbolt: Use DP_LOCAL_CAP for maximum bandwidth calculation
  thunderbolt: Correct typo in host_reset parameter
  thunderbolt: Skip discovery also in USB4 v2 host
  thunderbolt: Reset only non-USB4 host routers in resume
  thunderbolt: Remove usage of the deprecated ida_simple_xx() API
  thunderbolt: Fix rollback in tb_port_lane_bonding_enable() for lane 1
  thunderbolt: Fix XDomain rx_lanes_show and tx_lanes_show
  thunderbolt: Reset topology created by the boot firmware
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'thunderbolt-for-v6.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-linus</title>
<updated>2024-03-02T18:47:01+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@linuxfoundation.org</email>
</author>
<published>2024-03-02T18:47:01+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=3c4a311c2c15ef0fa07c225ee02197a316e10e00'/>
<id>3c4a311c2c15ef0fa07c225ee02197a316e10e00</id>
<content type='text'>
Mika writes:

thunderbolt: Fix for v6.8-rc7

This includes one USB4/Thunderbolt fix for v6.8-rc7:

  - Fix NULL pointer dereference in tb_port_update_credits() on
    Apple Thunderbolt 1 hardware.

This has been in linux-next with no reported issues.

* tag 'thunderbolt-for-v6.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt:
  thunderbolt: Fix NULL pointer dereference in tb_port_update_credits()
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Mika writes:

thunderbolt: Fix for v6.8-rc7

This includes one USB4/Thunderbolt fix for v6.8-rc7:

  - Fix NULL pointer dereference in tb_port_update_credits() on
    Apple Thunderbolt 1 hardware.

This has been in linux-next with no reported issues.

* tag 'thunderbolt-for-v6.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt:
  thunderbolt: Fix NULL pointer dereference in tb_port_update_credits()
</pre>
</div>
</content>
</entry>
<entry>
<title>thunderbolt: Constify the struct device_type usage</title>
<updated>2024-02-26T07:15:49+00:00</updated>
<author>
<name>Ricardo B. Marliere</name>
<email>ricardo@marliere.net</email>
</author>
<published>2024-02-19T12:45:50+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=b8a730836c6b1788ca2fbd6bcc2ac99e97ef7de9'/>
<id>b8a730836c6b1788ca2fbd6bcc2ac99e97ef7de9</id>
<content type='text'>
Since commit aed65af1cc2f ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the
tb_domain_type, tb_retimer_type, tb_switch_type, usb4_port_device_type,
tb_service_type and tb_xdomain_type variables to be constant structures as
well, placing it into read-only memory which can not be modified at
runtime.

Cc: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Ricardo B. Marliere &lt;ricardo@marliere.net&gt;
Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Since commit aed65af1cc2f ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the
tb_domain_type, tb_retimer_type, tb_switch_type, usb4_port_device_type,
tb_service_type and tb_xdomain_type variables to be constant structures as
well, placing it into read-only memory which can not be modified at
runtime.

Cc: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Ricardo B. Marliere &lt;ricardo@marliere.net&gt;
Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>thunderbolt: Add trace events support for the control channel</title>
<updated>2024-02-26T07:12:24+00:00</updated>
<author>
<name>Gil Fine</name>
<email>gil.fine@linux.intel.com</email>
</author>
<published>2023-02-12T22:45:21+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=a0c45b0b6ce23bc1cd6737ecd34df6c4a422a3ae'/>
<id>a0c45b0b6ce23bc1cd6737ecd34df6c4a422a3ae</id>
<content type='text'>
Sometimes it is useful to see the traffic happening inside the control
channel, especially when debugging a possible problem. This adds
tracepoints close to the hardware which can be enabled dynamically as
needed using the standard Linux trace events facility.

Signed-off-by: Gil Fine &lt;gil.fine@linux.intel.com&gt;
Co-developed-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Sometimes it is useful to see the traffic happening inside the control
channel, especially when debugging a possible problem. This adds
tracepoints close to the hardware which can be enabled dynamically as
needed using the standard Linux trace events facility.

Signed-off-by: Gil Fine &lt;gil.fine@linux.intel.com&gt;
Co-developed-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>thunderbolt: Keep the domain powered when USB4 port is in redrive mode</title>
<updated>2024-02-26T07:12:12+00:00</updated>
<author>
<name>Mika Westerberg</name>
<email>mika.westerberg@linux.intel.com</email>
</author>
<published>2024-01-26T13:55:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=a75e0684efe567ae5f6a8e91a8360c4c1773cf3a'/>
<id>a75e0684efe567ae5f6a8e91a8360c4c1773cf3a</id>
<content type='text'>
If a DiplayPort cable is directly connected to the host routers USB4
port, there is no tunnel involved but the port is in "redrive" mode
meaning that it is re-driving the DisplayPort signals from its
DisplayPort source. In this case we need to keep the domain powered on
otherwise once the domain enters D3cold the connected monitor blanks
too.

Since this happens only on Intel Barlow Ridge add a quirk that takes
runtime PM reference if we detect that the USB4 port entered redrive
mode (and release it once it exits the mode).

Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
If a DiplayPort cable is directly connected to the host routers USB4
port, there is no tunnel involved but the port is in "redrive" mode
meaning that it is re-driving the DisplayPort signals from its
DisplayPort source. In this case we need to keep the domain powered on
otherwise once the domain enters D3cold the connected monitor blanks
too.

Since this happens only on Intel Barlow Ridge add a quirk that takes
runtime PM reference if we detect that the USB4 port entered redrive
mode (and release it once it exits the mode).

Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>thunderbolt: Improve DisplayPort tunnel setup process to be more robust</title>
<updated>2024-02-16T10:29:23+00:00</updated>
<author>
<name>Gil Fine</name>
<email>gil.fine@linux.intel.com</email>
</author>
<published>2023-11-15T10:09:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=b4734507ac55cc7ea1380e20e83f60fcd7031955'/>
<id>b4734507ac55cc7ea1380e20e83f60fcd7031955</id>
<content type='text'>
After DisplayPort tunnel setup, we add verification that the DPRX
capabilities read process completed. Otherwise, we bail out, teardown
the tunnel, and try setup another DisplayPort tunnel using next
available DP IN adapter. We do so till all DP IN adapters tried. This
way, we avoid allocating DP IN adapter and (bandwidth for it) for
unusable tunnel.

Signed-off-by: Gil Fine &lt;gil.fine@linux.intel.com&gt;
Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
After DisplayPort tunnel setup, we add verification that the DPRX
capabilities read process completed. Otherwise, we bail out, teardown
the tunnel, and try setup another DisplayPort tunnel using next
available DP IN adapter. We do so till all DP IN adapters tried. This
way, we avoid allocating DP IN adapter and (bandwidth for it) for
unusable tunnel.

Signed-off-by: Gil Fine &lt;gil.fine@linux.intel.com&gt;
Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>thunderbolt: Calculate DisplayPort tunnel bandwidth after DPRX capabilities read</title>
<updated>2024-02-16T10:29:23+00:00</updated>
<author>
<name>Gil Fine</name>
<email>gil.fine@linux.intel.com</email>
</author>
<published>2024-01-23T13:56:42+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=ccd845021147dc8257a05ed8f5a7f9c61a9101e3'/>
<id>ccd845021147dc8257a05ed8f5a7f9c61a9101e3</id>
<content type='text'>
According to USB4 Connection Manager guide, after DisplayPort tunnel was
setup, the DPRX capabilities read is performed by the DPTX. According to
VESA spec, this shall be completed within 5 seconds after the DisplayPort
tunnel was setup. Hence, if the bit: DPRX Capabilities Read Done, was
not set to '1' by this time, we timeout and fail calculating DisplayPort
tunnel consumed bandwidth.

Signed-off-by: Gil Fine &lt;gil.fine@linux.intel.com&gt;
Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
According to USB4 Connection Manager guide, after DisplayPort tunnel was
setup, the DPRX capabilities read is performed by the DPTX. According to
VESA spec, this shall be completed within 5 seconds after the DisplayPort
tunnel was setup. Hence, if the bit: DPRX Capabilities Read Done, was
not set to '1' by this time, we timeout and fail calculating DisplayPort
tunnel consumed bandwidth.

Signed-off-by: Gil Fine &lt;gil.fine@linux.intel.com&gt;
Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>thunderbolt: Reserve released DisplayPort bandwidth for a group for 10 seconds</title>
<updated>2024-02-16T10:29:23+00:00</updated>
<author>
<name>Mika Westerberg</name>
<email>mika.westerberg@linux.intel.com</email>
</author>
<published>2024-01-09T15:57:10+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=52a4490e89d7c4effe613d8dffd2ac0a2a786bd7'/>
<id>52a4490e89d7c4effe613d8dffd2ac0a2a786bd7</id>
<content type='text'>
The USB4 spec says that the Connection Manager should reserve the
bandwidth that is released in the same group for 10 seconds before it
can be shared with other groups. Add support for this. We also delay the
symmetric transition by that same 10 seconds to avoid any unnecessary
transitions (i.e if the released bandwidth is used by another
DisplayPort tunnel in the same group the link can stay asymmetric the
whole time).

Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The USB4 spec says that the Connection Manager should reserve the
bandwidth that is released in the same group for 10 seconds before it
can be shared with other groups. Add support for this. We also delay the
symmetric transition by that same 10 seconds to avoid any unnecessary
transitions (i.e if the released bandwidth is used by another
DisplayPort tunnel in the same group the link can stay asymmetric the
whole time).

Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>thunderbolt: Introduce tb_tunnel_direction_downstream()</title>
<updated>2024-02-16T10:29:23+00:00</updated>
<author>
<name>Mika Westerberg</name>
<email>mika.westerberg@linux.intel.com</email>
</author>
<published>2024-01-09T15:48:34+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=769da9708ae62f3c0a491b67c9514a53e5769feb'/>
<id>769da9708ae62f3c0a491b67c9514a53e5769feb</id>
<content type='text'>
This helper takes tunnel as parameter. Convert existing code to call
this where possible.

No functional changes.

Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This helper takes tunnel as parameter. Convert existing code to call
this where possible.

No functional changes.

Signed-off-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
