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1,343 commits

Author SHA1 Message Date
Linus Torvalds
99ef60d119 USB / Thunderbolt changes for 7.1-rc1
Here is the big set of USB and Thunderbolt changes for 7.1-rc1.
 
 Lots of little things in here, nothing major, just constant
 improvements, updates, and new features.  Highlights are:
   - new USB power supply driver support (will cause merge conflicts in
     drivers/power/supply/Makefile, but it's a simple fix)  These changes
     did touch outside of drivers/usb/ but got acks from the relevant
     mantainers for them.
   - dts file updates and conversions
   - string function conversions into "safer" ones
   - new device quirks
   - xhci driver updates
   - usb gadget driver minor fixes
   - typec driver additions and updates
   - small number of thunderbolt driver changes
   - dwc3 driver updates and additions of new hardware support
   - other minor driver updates
 
 All of these have been in the linux-next tree for a while with no
 reported issues
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt updates from Greg KH:
 "Here is the big set of USB and Thunderbolt changes for 7.1-rc1.

  Lots of little things in here, nothing major, just constant
  improvements, updates, and new features. Highlights are:

   - new USB power supply driver support.

     These changes did touch outside of drivers/usb/ but got acks from
     the relevant mantainers for them.

   - dts file updates and conversions

   - string function conversions into "safer" ones

   - new device quirks

   - xhci driver updates

   - usb gadget driver minor fixes

   - typec driver additions and updates

   - small number of thunderbolt driver changes

   - dwc3 driver updates and additions of new hardware support

   - other minor driver updates

  All of these have been in the linux-next tree for a while with no
  reported issues"

* tag 'usb-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (176 commits)
  usb: dwc3: starfive: Add JHB100 USB 2.0 DRD controller
  dt-bindings: usb: dwc3: add support for StarFive JHB100
  dt-bindings: usb: atmel,at91sam9rl-udc: convert to DT schema
  dt-bindings: usb: atmel,at91rm9200-udc: convert to DT schema
  dt-bindings: usb: generic-ehci: fix schema structure and add at91sam9g45 constraints
  dt-bindings: usb: generic-ohci: add AT91RM9200 OHCI binding support
  arm: dts: at91: remove unused #address-cells/#size-cells from sam9x60 udc node
  drivers/usb/host: Fix spelling error 'seperate' -> 'separate'
  usbip: tools: add hint when no exported devices are found
  USB: serial: iuu_phoenix: fix iuutool author name
  usb: gadget: f_ncm: validate minimum block_len in ncm_unwrap_ntb()
  usb: gadget: f_phonet: fix skb frags[] overflow in pn_rx_complete()
  usb: gadget: f_hid: Add missing error code
  usb: typec: cros_ec_ucsi: Load driver from OF and ACPI definitions
  dt-bindings: chrome: Add cros-ec-ucsi compatibility to typec binding
  USB: of: Simplify with scoped for each OF child loop
  usbip: validate number_of_packets in usbip_pack_ret_submit()
  usb: gadget: renesas_usb3: validate endpoint index in standard request handlers
  usb: core: config: reverse the size check of the SSP isoc endpoint descriptor
  usb: typec: ucsi: Set usb mode on partner change
  ...
2026-04-19 08:47:40 -07:00
Jameson Thies
40b17a345d usb: typec: cros_ec_ucsi: Load driver from OF and ACPI definitions
Add support for cros_ec_ucsi to load based on "google,cros-ec-ucsi"
compatible devices and "GOOG0021" ACPI nodes.

Signed-off-by: Jameson Thies <jthies@google.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Link: https://patch.msgid.link/20260403223357.1896403-3-jthies@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-07 13:49:53 +02:00
Jameson Thies
1ace770f5d usb: typec: ucsi: Set usb mode on partner change
Currently the partner usb_mode is only set in ucsi_register_partner().
If the partner enters USB4 operation after it is registered, this is not
reported to the typec class. The UCSI spec states that the Connector
Partner Changed bit can represent a Connector Partner Flags change. When
handling a UCSI partner change, check the partner flags for USB4
operation.

Signed-off-by: Jameson Thies <jthies@google.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Link: https://patch.msgid.link/20260402182438.867396-1-jthies@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-07 13:47:59 +02:00
Nathan Rebello
5a1140404c usb: typec: ucsi: skip connector validation before init
Notifications can arrive before ucsi_init() has populated
ucsi->cap.num_connectors via GET_CAPABILITY. At that point
num_connectors is still 0, causing all valid connector numbers to be
incorrectly rejected as bogus.

Skip the bounds check when num_connectors is 0 (not yet initialized).
Pre-init notifications are already handled safely by the early-event
guard in ucsi_connector_change().

Reported-by: Takashi Iwai <tiwai@suse.de>
Fixes: d2d8c17ac0 ("usb: typec: ucsi: validate connector number in ucsi_notify_common()")
Cc: stable@vger.kernel.org
Signed-off-by: Nathan Rebello <nathan.c.rebello@gmail.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260407063958.863-1-nathan.c.rebello@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-07 13:35:44 +02:00
Greg Kroah-Hartman
3723393cc2 Linux 7.0-rc7
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Merge tag 'v7.0-rc7' into usb-next

We need the USB fixes in here to build on and for testing

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-06 09:06:39 +02:00
Andrei Kuchynski
3b8ae98176 usb: typec: thunderbolt: Set enter_vdo during initialization
In the current implementation, if a cable's alternate mode enter operation
is not supported, the tbt->plug[TYPEC_PLUG_SOP_P] pointer is cleared by the
time tbt_enter_mode() is called. This prevents the driver from identifying
the cable's VDO.

As a result, the Thunderbolt connection falls back to the default
TBT_CABLE_USB3_PASSIVE speed, even if the cable supports higher speeds.
To ensure the correct VDO value is used during mode entry, calculate and
store the enter_vdo earlier during the initialization phase in tbt_ready().

Cc: stable <stable@kernel.org>
Fixes: 100e257386 ("usb: typec: Add driver for Thunderbolt 3 Alternate Mode")
Tested-by: Madhu M <madhu.m@intel.corp-partner.google.com>
Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Link: https://patch.msgid.link/20260324103012.1417616-1-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-30 17:17:40 +02:00
Andrei Kuchynski
b65d4ca1d1 usb: typec: Remove alt->adev.dev.class assignment
The typec plug alternate mode is already registered as part of the bus.
When both class and bus are set for a device, device_add() attempts to
create the "subsystem" symlink in the device's sysfs directory twice, once
for the bus and once for the class.
This results in a duplicate filename error during registration,
causing the alternate mode registration to fail with warnings:

cannot create duplicate filename '/devices/pci0000:00/0000:00:1f.0/
  PNP0C09:00/GOOG0004:00/cros-ec-dev.1.auto/cros_ec_ucsi.3.auto/typec/
  port1/port1-cable/port1-plug0/port1-plug0.0/subsystem'
typec port0-plug0: failed to register alternate mode (-17)
cros_ec_ucsi.3.auto: failed to registers svid 0x8087 mode 1

Cc: stable <stable@kernel.org>
Fixes: 67ab454262 ("usb: typec: Set the bus also for the port and plug altmodes")
Tested-by: Madhu M <madhu.m@intel.corp-partner.google.com>
Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Link: https://patch.msgid.link/20260324102903.1416210-1-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-30 17:17:21 +02:00
Amit Sunil Dhamne
0c8935642c usb: typec: tcpm/tcpci_maxim: deprecate WAR for setting charger mode
TCPCI maxim driver directly writes to the charger's register space to
set charger mode depending on the power role. As MAX77759 chg driver
exists, this WAR is not required.

Instead, use a regulator interface to source vbus when typec is in
source power mode. In other power modes, this regulator will be turned
off if active.

Signed-off-by: Amit Sunil Dhamne <amitsd@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20260325-max77759-charger-v9-6-4486dd297adc@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-30 16:58:33 +02:00
Alexey Charkov
6b9db53197 usb: typec: fusb302: Switch to threaded IRQ handler
FUSB302 fails to probe with -EINVAL if its interrupt line is connected via
an I2C GPIO expander, such as TI TCA6416.

Switch the interrupt handler to a threaded one, which also works behind
such GPIO expanders.

Cc: stable <stable@kernel.org>
Fixes: 309b6341d5 ("usb: typec: fusb302: Revert incorrect threaded irq fix")
Signed-off-by: Alexey Charkov <alchark@flipper.net>
Reviewed-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Reviewed-by: Heikki Krogerus <heikki.krogrerus@linux.intel.com>
Link: https://patch.msgid.link/20260317-fusb302-irq-v2-1-dbabd5c5c961@flipper.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-30 16:53:30 +02:00
Alexey Charkov
b41470c6b4 usb: typec: tcpci_rt1711h: Drop unnecessary VID/PID/DID checks
Existing checks for VID/PID/DID in the driver are redundant since the
driver is already matched to the device via I2C device ID and OF
compatible strings, and they preclude the use of fallback compatibles.

Remove them to make the driver slimmer and adding new clones easier.

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Alexey Charkov <alchark@flipper.net>
Link: https://patch.msgid.link/20260318-husb311-v4-4-69e029255430@flipper.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-30 16:53:11 +02:00
Xu Yang
35a99b690c usb: typec: tcpci: support setting orientation via GPIO
If the chip indicates its "Connection Orientation" standard output control
in STANDARD_OUTPUT_CAPABILITIES register, it can do the thing by
programming CONFIG_STANDARD_OUTPUT register. Due to the optional feature,
the chip which not present this capability currently doesn't have a way to
correctly set the data path. This add the support to set orientation via
a simple GPIO.

Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260319-support-setting-orientation-use-gpio-v4-2-ab6dfa8610c2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-30 16:49:56 +02:00
Nathan Rebello
d2d8c17ac0 usb: typec: ucsi: validate connector number in ucsi_notify_common()
The connector number extracted from CCI via UCSI_CCI_CONNECTOR() is a
7-bit field (0-127) that is used to index into the connector array in
ucsi_connector_change(). However, the array is only allocated for the
number of connectors reported by the device (typically 2-4 entries).

A malicious or malfunctioning device could report an out-of-range
connector number in the CCI, causing an out-of-bounds array access in
ucsi_connector_change().

Add a bounds check in ucsi_notify_common(), the central point where CCI
is parsed after arriving from hardware, so that bogus connector numbers
are rejected before they propagate further.

Fixes: bdc62f2bae ("usb: typec: ucsi: Simplified registration and I/O API")
Cc: stable <stable@kernel.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Nathan Rebello <nathan.c.rebello@gmail.com>
Link: https://patch.msgid.link/20260313222453.123-1-nathan.c.rebello@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-18 16:15:49 +01:00
Badhri Jagan Sridharan
d3d959404e tcpm: Implement sink support for PD SPR AVS negotiation
Add support to enable TCPM to negotiate with
USB PD Standard Power Range Adjustable Voltage Supply (SPR AVS) when
acting as a power sink.

* Added support to the tcpm power supply properties, allowing userspace
  to enable and control the dynamic limits (voltage and current)
  specific to the SPR AVS contract.
* Implemented tcpm_pd_select_spr_avs_apdo() to select the appropriate
  APDO and validate the requested voltage/current against both the
  Source and Sink capabilities.
* Implemented tcpm_pd_build_spr_avs_request() to construct the
  Request Data Object (RDO) for SPR AVS.
* Added SNK_NEGOTIATE_SPR_AVS_CAPABILITIES state to the state machine to
  handle negotiation for SPR AVS.
* Updated the SNK_TRANSITION_SINK state to implement the SPR
  AVS-specific VBUS transition rules, including reducing current draw to
  PD_I_SNK_STBY_MA for large voltage changes, as required by USB PD spec.

Log stub captured when enabling AVS:
$ echo 3 > /sys/class/power_supply/tcpm-source-psy-1-0025/online
$ cat /d/usb/tcpm-1-0025/log
[  358.895775] request to set AVS online
[  358.895792] AMS POWER_NEGOTIATION start
[  358.895806] state change SNK_READY -> AMS_START [rev3 POWER_NEGOTIATION]
[  358.895850] state change AMS_START -> SNK_NEGOTIATE_SPR_AVS_CAPABILITIES [rev3 POWER_NEGOTIATION]
[  358.895866] SPR AVS src_pdo_index:4 snk_pdo_index:2 req_op_curr_ma roundup:2200 req_out_volt_mv roundup:9000
[  358.895880] Requesting APDO SPR AVS 4: 9000 mV, 2200 mA
[  358.896405] set_auto_vbus_discharge_threshold mode:0 pps_active:n vbus:0 pps_apdo_min_volt:0 ret:0
[  358.896422] PD TX, header: 0x1a82
[  358.900158] PD TX complete, status: 0
[  358.900205] pending state change SNK_NEGOTIATE_SPR_AVS_CAPABILITIES -> HARD_RESET_SEND @ 60 ms [rev3 POWER_NEGOTIATION]
[  358.904832] PD RX, header: 0x1a3 [1]
[  358.904854] state change SNK_NEGOTIATE_SPR_AVS_CAPABILITIES -> SNK_TRANSITION_SINK [rev3 POWER_NEGOTIATION]
[  358.904888] pending state change SNK_TRANSITION_SINK -> HARD_RESET_SEND @ 700 ms [rev3 POWER_NEGOTIATION]
[  359.021530] PD RX, header: 0x3a6 [1]
[  359.021546] Setting voltage/current limit 9000 mV 2200 mA
[  359.023035] set_auto_vbus_discharge_threshold mode:3 pps_active:n vbus:9000 pps_apdo_min_volt:0 ret:0
[  359.023053] state change SNK_TRANSITION_SINK -> SNK_READY [rev3 POWER_NEGOTIATION]
[  359.023090] AMS POWER_NEGOTIATION finished

$ cat /sys/class/power_supply/tcpm-source-psy-1-0025/online
3

Log stub captured when increasing voltage:
$ echo 9100000 > /sys/class/power_supply/tcpm-source-psy-1-0025/voltage_now
$ cat /d/usb/tcpm-1-0025/log

[  632.116714] AMS POWER_NEGOTIATION start
[  632.116728] state change SNK_READY -> AMS_START [rev3 POWER_NEGOTIATION]
[  632.116779] state change AMS_START -> SNK_NEGOTIATE_SPR_AVS_CAPABILITIES [rev3 POWER_NEGOTIATION]
[  632.116798] SPR AVS src_pdo_index:4 snk_pdo_index:2 req_op_curr_ma roundup:2200 req_out_volt_mv roundup:9100
[  632.116811] Requesting APDO SPR AVS 4: 9100 mV, 2200 mA
[  632.117315] set_auto_vbus_discharge_threshold mode:0 pps_active:n vbus:0 pps_apdo_min_volt:0 ret:0
[  632.117328] PD TX, header: 0x1c82
[  632.121007] PD TX complete, status: 0
[  632.121052] pending state change SNK_NEGOTIATE_SPR_AVS_CAPABILITIES -> HARD_RESET_SEND @ 60 ms [rev3 POWER_NEGOTIATION]
[  632.124572] PD RX, header: 0x5a3 [1]
[  632.124594] state change SNK_NEGOTIATE_SPR_AVS_CAPABILITIES -> SNK_TRANSITION_SINK [rev3 POWER_NEGOTIATION]
[  632.124623] pending state change SNK_TRANSITION_SINK -> HARD_RESET_SEND @ 700 ms [rev3 POWER_NEGOTIATION]
[  632.149256] PD RX, header: 0x7a6 [1]
[  632.149271] Setting voltage/current limit 9100 mV 2200 mA
[  632.150770] set_auto_vbus_discharge_threshold mode:3 pps_active:n vbus:9100 pps_apdo_min_volt:0 ret:0
[  632.150787] state change SNK_TRANSITION_SINK -> SNK_READY [rev3 POWER_NEGOTIATION]
[  632.150823] AMS POWER_NEGOTIATION finished

$ cat /sys/class/power_supply/tcpm-source-psy-1-0025/voltage_now
9100000

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Amit Sunil Dhamne <amitsd@google.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260316150301.3892223-4-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-18 16:08:39 +01:00
Mostafa Saleh
381133848a usb: typec: ps883x: Fix Oops at unbind
When trying to unbind a device in order to bind to it vfio-platform as:

  echo bc0000.geniqup  > /sys/bus/platform/devices/bc0000.geniqup/driver/unbind

I get the following Oops:

[  436.478639] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020
[  436.487762] Mem abort info:
[  436.490716]   ESR = 0x0000000096000004
[  436.494595]   EC = 0x25: DABT (current EL), IL = 32 bits
[  436.500071]   SET = 0, FnV = 0
[  436.503250]   EA = 0, S1PTW = 0
[  436.506505]   FSC = 0x04: level 0 translation fault
[  436.511533] Data abort info:
[  436.514558]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
[  436.520215]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0
[  436.525436]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[  436.530918] user pgtable: 4k pages, 48-bit VAs, pgdp=00000008861a9000
[  436.537554] [0000000000000020] pgd=0000000000000000, p4d=0000000000000000
[  436.544548] Internal error: Oops: 0000000096000004 [#1]  SMP
[  436.550374] Modules linked in:
[  436.553542] CPU: 2 UID: 0 PID: 671 Comm: bash Tainted: G        W           7.0.0-rc3-g56fcdd0911a5-dirty #2 PREEMPT
[  436.564440] Tainted: [W]=WARN
[  436.567515] Hardware name: LENOVO 91B6CTO1WW/3796, BIOS O6NKT3BA 05/02/2025
[  436.574675] pstate: 21400005 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[  436.581841] pc : ps883x_retimer_remove+0x14/0x94
[  436.586605] lr : i2c_device_remove+0x28/0x84
[  436.591017] sp : ffff8000847137c0

That's because the ps883x_retimer_remove() retrieves the driver data
from i2c_get_clientdata() which was never set at probe. So, add
i2c_set_clientdata() at the end of the probe.

Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Fixes: 257a087c8b ("usb: typec: Add support for Parade PS8830 Type-C Retimer")
Link: https://patch.msgid.link/20260313155534.1916773-1-smostafa@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-18 16:04:03 +01:00
Krishna Kurapati
0c8ee85057 usb: typec: ucsi: Add UCSI_USB4_IMPLIES_USB quirk for X1E80100
On X1E80100, when we connect a USB4 capable dock, the PARTNER_FLAGS
indicate USB4_GEN3 being set whilst keeping the PARTNER_FLAGS_USB
cleared. Due to this, during ucsi_partner_change call, the usb role
is marked as ROLE_NONE and passed to DWC3 controller the same way.

Fix this by adding UCSI_USB4_IMPLIES_USB quirk and check for it to
decide and pass on proper ROLE information to DWC3 layer.

Signed-off-by: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260312101431.2375709-1-krishna.kurapati@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-18 16:03:14 +01:00
Greg Kroah-Hartman
de6c925db9 Merge 7.0-rc4 into usb-next
We need the USB fixes in this branch as well to build on top of

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-16 11:50:48 +01:00
Xu Yang
6b275bfaa1 Revert "tcpm: allow looking for role_sw device in the main node"
This reverts commit 1366cd228b.

The fwnode_usb_role_switch_get() returns NULL only if no connection is
found, returns ERR_PTR(-EPROBE_DEFER) if connection is found but deferred
probe is needed, or a valid pointer of usb_role_switch.

When switching from a NULL check to IS_ERR_OR_NULL(), usb_role_switch_get()
returns NULL and overwrites the ERR_PTR(-EPROBE_DEFER) returned by
fwnode_usb_role_switch_get(). This causes the deferred probe indication to
be lost, preventing the USB role switch from ever being retrieved.

Fixes: 1366cd228b ("tcpm: allow looking for role_sw device in the main node")
Cc: stable <stable@kernel.org>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Tested-by: Arnaud Ferraris <arnaud.ferraris@collabora.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260309074313.2809867-2-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 16:22:18 +01:00
RD Babiera
e8557acfa0 usb: typec: altmode/displayport: set displayport signaling rate in configure message
dp_altmode_configure sets the signaling rate to the current
configuration's rate and then shifts the value to the Select
Configuration bitfield. On the initial configuration, dp->data.conf
is 0 to begin with, so the signaling rate field is never set, which
leads to some DisplayPort Alt Mode partners sending NAK to the
Configure message.

Set the signaling rate to the capabilities supported by both the
port and the port partner. If the cable supports DisplayPort Alt Mode,
then include its capabilities as well.

Fixes: a17fae8fc3 ("usb: typec: Add Displayport Alternate Mode 2.1 Support")
Cc: stable <stable@kernel.org>
Signed-off-by: RD Babiera <rdbabiera@google.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260310204106.3939862-2-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 16:20:57 +01:00
Amit Sunil Dhamne
b558a9cc10 usb: typec: tcpm: add support for Sink Cap Extended msg response
Add support for responding to Sink Cap Extended msg request. To achieve
this, include parsing support for DT properties related to Sink Cap
Extended. The request for Sink Cap Ext is a control message while the
response is an extended message (chunked). As the Sink Caps Extended
Data Block size (24 Byte) is less than MaxExtendedMsgChunkLen (26 Byte),
a single chunk is sufficient to complete this AMS.

Supporting sink cap extended messages while responding to a
Get_Sink_Caps_Extended request when port is in Sink role is required in
order to be compliant with at least USB PD Rev3.1 Ver1.8.

Signed-off-by: Amit Sunil Dhamne <amitsd@google.com>
Reviewed-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260223-skedb-v2-2-60675765bc7e@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 15:48:52 +01:00
Yuanshen Cao
ec53fe37a5 usb: typec: tcpm: Add vid and chip info for Etek ET7304
Move VID field to chip info to accommodate different VIDs.
Add chip info for Etek Micro ET7304. ET7304 is functionally
identical to the Richtek RT1715, with the only difference
being the VID.

Signed-off-by: Yuanshen Cao <alex.caoys@gmail.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260220-et7304-v3-2-ede2d9634957@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 15:48:11 +01:00
Ai Chao
2131540de4 usb: typec: tcpm: Use safer strscpy() instead of strcpy()
Use a safer function strscpy() instead of strcpy() for copying to
arrays.

Only idiomatic code replacement, and no functional changes.

Signed-off-by: Ai Chao <aichao@kylinos.cn>
Link: https://patch.msgid.link/20260310094434.3639602-5-aichao@kylinos.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 15:39:04 +01:00
Sebastian Reichel
b145c3f29d usb: typec: mux: avoid duplicated mux switches
Some devices use combo PHYs (i.e. USB3 + DisplayPort), which also
handle the lane muxing. These PHYs are referenced twice from
the USB-C connector (USB super-speed lines and SBU/AUX lines)
resulting in the mux being configured twice. Avoid this by
dropping duplicates.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260223-typec-mux-duplication-fix-v2-2-0402fefc222e@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 15:38:54 +01:00
Sebastian Reichel
a53b4f9c51 usb: typec: mux: avoid duplicated orientation switches
Some devices use combo PHYs (i.e. USB3 + DisplayPort), which also
handle the orientation mux. These PHYs are referenced twice from
the USB-C connector (USB super-speed lines and SBU/AUX lines)
resulting in the switch being configured twice. Avoid this by
dropping duplicates.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260223-typec-mux-duplication-fix-v2-1-0402fefc222e@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 15:38:53 +01:00
Ethan Tidmore
f2529d08fc usb: typec: Fix error pointer dereference
The variable tps->partner is checked for an error pointer and then if it
is, it sends an error message but does not return and then immediately
dereferenced a few lines below:

tps->partner = typec_register_partner(tps->port, &desc);
if (IS_ERR(tps->partner))
	dev_warn(tps->dev, "%s: failed to register partnet\n", __func__);

if (desc.identity) {
	typec_partner_set_identity(tps->partner);
	cd321x->cur_partner_identity = st.partner_identity;
}

Add early return and fix spelling mistake in error message.

Detected by Smatch:
drivers/usb/typec/tipd/core.c:827 cd321x_update_work() error:
'tps->partner' dereferencing possible ERR_PTR()

Fixes: 82432bbfb9 ("usb: typec: tipd: Handle mode transitions for CD321x")
Signed-off-by: Ethan Tidmore <ethantidmore06@gmail.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260218214621.38154-1-ethantidmore06@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 15:38:40 +01:00
Krzysztof Kozlowski
0313023f19 USB: typec: tcpci: Make tcpci_pm_ops variable static
File-scope 'tcpci_pm_ops' is not used outside of this unit, so make it
static to silence sparse warning:

  tcpm/tcpci.c:1002:1: warning: symbol 'tcpci_pm_ops' was not declared. Should it be static?

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://patch.msgid.link/20260216110403.159945-2-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 15:38:28 +01:00
Loic Poulain
78bf06db16 usb: typec: ucsi: Invoke ucsi_run_command tracepoint
The ucsi_run_command trace event is exposed in tracefs, but it never
produces any output because the UCSI core never invokes the associated
tracepoint. As a result, enabling the event under events/ucsi/ yields
no traces, preventing users from inspecting UCSI command sequencing.

Wire the tracepoint into the UCSI command path so that commands are
properly reported.

Example:
50.692342: ucsi_run_command: GET_CONNECTOR_STATUS -> OK (err=0)
50.692345: ucsi_connector_change: port0 status: change=4800, ...
51.750298: ucsi_run_command: GET_CABLE_PROPERTY -> FAIL (err=-5)
51.773360: ucsi_run_command: GET_CONNECTOR_STATUS -> OK (err=0)

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260217103403.1956-1-loic.poulain@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 15:38:19 +01:00
Sebastian Reichel
5d79c52540 usb: typec: fusb302: add DRM DP HPD bridge support
Add support to use fusb302 based USB-C connectors with the DP altmode
helper code on devicetree based platforms. To get this working there
must be a DRM bridge chain from the DisplayPort controller to the USB-C
connector. E.g. on Rockchip RK3576:

root@rk3576 # cat /sys/kernel/debug/dri/0/encoder-0/bridges
bridge[0]: dw_dp_bridge_funcs
	refcount: 7
	type: [10] DP
	OF: /soc/dp@27e40000:rockchip,rk3576-dp
	ops: [0x47] detect edid hpd
bridge[1]: drm_aux_bridge_funcs
	refcount: 4
	type: [0] Unknown
	OF: /soc/phy@2b010000:rockchip,rk3576-usbdp-phy
	ops: [0x0]
bridge[2]: drm_aux_hpd_bridge_funcs
	refcount: 5
	type: [10] DP
	OF: /soc/i2c@2ac50000/typec-portc@22/connector:usb-c-connector
	ops: [0x4] hpd

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260310-fusb302-drm-dp-hpd-bridge-v1-1-ffd41ef9afe3@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 15:02:13 +01:00
Pengyu Luo
afcba2ced1 usb: ucsi: huawei_gaokun: make gaokun_ucsi_ops static
The gaokun_ucsi_ops structure is only used within its translation unit
and is not referenced from any other file. Add the 'static' qualifier
to avoid unnecessary symbol export.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202603050203.KD4RWA00-lkp@intel.com
Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260305144054.27848-1-mitltlatltl@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 15:01:17 +01:00
Rosen Penev
26cf091714 usb: typec: tcpm: kzalloc + kcalloc to kzalloc_flex
Simplifies allocation and allows using __counted_by for extra runtime
analysis.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://patch.msgid.link/20260306031639.46942-1-rosenp@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 15:00:51 +01:00
Anjelique Melendez
45955006cc usb: typec: ucsi: ucsi_glink: Add support for Glymur and Kaanapali
Add Glymur and Kaanapali compatible strings which both need
UCSI_DELAY_DEVICE_PDOS quirk.

Signed-off-by: Anjelique Melendez <anjelique.melendez@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20260209204915.1983997-5-anjelique.melendez@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-11 14:59:09 +01:00
Linus Torvalds
32a92f8c89 Convert more 'alloc_obj' cases to default GFP_KERNEL arguments
This converts some of the visually simpler cases that have been split
over multiple lines.  I only did the ones that are easy to verify the
resulting diff by having just that final GFP_KERNEL argument on the next
line.

Somebody should probably do a proper coccinelle script for this, but for
me the trivial script actually resulted in an assertion failure in the
middle of the script.  I probably had made it a bit _too_ trivial.

So after fighting that far a while I decided to just do some of the
syntactically simpler cases with variations of the previous 'sed'
scripts.

The more syntactically complex multi-line cases would mostly really want
whitespace cleanup anyway.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21 20:03:00 -08:00
Linus Torvalds
bf4afc53b7 Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
This was done entirely with mindless brute force, using

    git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
        xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'

to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.

Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.

For the same reason the 'flex' versions will be done as a separate
conversion.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21 17:09:51 -08:00
Kees Cook
69050f8d6d treewide: Replace kmalloc with kmalloc_obj for non-scalar types
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook <kees@kernel.org>
2026-02-21 01:02:28 -08:00
Linus Torvalds
17f8d20093 USB / Thunderbolt changes for 7.0-rc1
Here is the "big" set of USB and Thunderbolt driver updates for 7.0-rc1.
 Overall more lines were removed than added, thanks to dropping the
 obsolete isp1362 USB host controller driver, always a nice change.
 
 Other than that, nothing major happening here, highlights are:
   - lots of dwc3 driver updates and new hardware support added
   - usb gadget function driver updates
   - usb phy driver updates
   - typec driver updates and additions
   - USB rust binding updates for syntax and formatting changes
   - more usb serial device ids added
   - other smaller USB core and driver updates and additions
 
 All of these have been in linux-next for a long time, with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt updates from Greg KH:
 "Here is the "big" set of USB and Thunderbolt driver updates for
  7.0-rc1. Overall more lines were removed than added, thanks to
  dropping the obsolete isp1362 USB host controller driver, always a
  nice change.

  Other than that, nothing major happening here, highlights are:

   - lots of dwc3 driver updates and new hardware support added

   - usb gadget function driver updates

   - usb phy driver updates

   - typec driver updates and additions

   - USB rust binding updates for syntax and formatting changes

   - more usb serial device ids added

   - other smaller USB core and driver updates and additions

  All of these have been in linux-next for a long time, with no reported
  problems"

* tag 'usb-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (77 commits)
  usb: typec: ucsi: Add Thunderbolt alternate mode support
  usb: typec: hd3ss3220: Check if regulator needs to be switched
  usb: phy: tegra: parametrize PORTSC1 register offset
  usb: phy: tegra: parametrize HSIC PTS value
  usb: phy: tegra: return error value from utmi_wait_register
  usb: phy: tegra: cosmetic fixes
  dt-bindings: usb: renesas,usbhs: Add RZ/G3E SoC support
  usb: dwc2: fix resume failure if dr_mode is host
  usb: cdns3: fix role switching during resume
  usb: dwc3: gadget: Move vbus draw to workqueue context
  USB: serial: option: add Telit FN920C04 RNDIS compositions
  usb: dwc3: Log dwc3 address in traces
  usb: gadget: tegra-xudc: Add handling for BLCG_COREPLL_PWRDN
  usb: phy: tegra: add HSIC support
  usb: phy: tegra: use phy type directly
  usb: typec: ucsi: Enforce mode selection for cros_ec_ucsi
  usb: typec: ucsi: Support mode selection to activate altmodes
  usb: typec: Introduce mode_selection bit
  usb: typec: Implement mode selection
  usb: typec: Expose alternate mode priority via sysfs
  ...
2026-02-17 09:36:43 -08:00
Linus Torvalds
136114e0ab mm.git review status for linus..mm-nonmm-stable
Total patches:       107
 Reviews/patch:       1.07
 Reviewed rate:       67%
 
 - The 2 patch series "ocfs2: give ocfs2 the ability to reclaim
   suballocator free bg" from Heming Zhao saves disk space by teaching
   ocfs2 to reclaim suballocator block group space.
 
 - The 4 patch series "Add ARRAY_END(), and use it to fix off-by-one
   bugs" from Alejandro Colomar adds the ARRAY_END() macro and uses it in
   various places.
 
 - The 2 patch series "vmcoreinfo: support VMCOREINFO_BYTES larger than
   PAGE_SIZE" from Pnina Feder makes the vmcore code future-safe, if
   VMCOREINFO_BYTES ever exceeds the page size.
 
 - The 7 patch series "kallsyms: Prevent invalid access when showing
   module buildid" from Petr Mladek cleans up kallsyms code related to
   module buildid and fixes an invalid access crash when printing
   backtraces.
 
 - The 3 patch series "Address page fault in
   ima_restore_measurement_list()" from Harshit Mogalapalli fixes a
   kexec-related crash that can occur when booting the second-stage kernel
   on x86.
 
 - The 6 patch series "kho: ABI headers and Documentation updates" from
   Mike Rapoport updates the kexec handover ABI documentation.
 
 - The 4 patch series "Align atomic storage" from Finn Thain adds the
   __aligned attribute to atomic_t and atomic64_t definitions to get
   natural alignment of both types on csky, m68k, microblaze, nios2,
   openrisc and sh.
 
 - The 2 patch series "kho: clean up page initialization logic" from
   Pratyush Yadav simplifies the page initialization logic in
   kho_restore_page().
 
 - The 6 patch series "Unload linux/kernel.h" from Yury Norov moves
   several things out of kernel.h and into more appropriate places.
 
 - The 7 patch series "don't abuse task_struct.group_leader" from Oleg
   Nesterov removes the usage of ->group_leader when it is "obviously
   unnecessary".
 
 - The 5 patch series "list private v2 & luo flb" from Pasha Tatashin
   adds some infrastructure improvements to the live update orchestrator.
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Merge tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - "ocfs2: give ocfs2 the ability to reclaim suballocator free bg" saves
   disk space by teaching ocfs2 to reclaim suballocator block group
   space (Heming Zhao)

 - "Add ARRAY_END(), and use it to fix off-by-one bugs" adds the
   ARRAY_END() macro and uses it in various places (Alejandro Colomar)

 - "vmcoreinfo: support VMCOREINFO_BYTES larger than PAGE_SIZE" makes
   the vmcore code future-safe, if VMCOREINFO_BYTES ever exceeds the
   page size (Pnina Feder)

 - "kallsyms: Prevent invalid access when showing module buildid" cleans
   up kallsyms code related to module buildid and fixes an invalid
   access crash when printing backtraces (Petr Mladek)

 - "Address page fault in ima_restore_measurement_list()" fixes a
   kexec-related crash that can occur when booting the second-stage
   kernel on x86 (Harshit Mogalapalli)

 - "kho: ABI headers and Documentation updates" updates the kexec
   handover ABI documentation (Mike Rapoport)

 - "Align atomic storage" adds the __aligned attribute to atomic_t and
   atomic64_t definitions to get natural alignment of both types on
   csky, m68k, microblaze, nios2, openrisc and sh (Finn Thain)

 - "kho: clean up page initialization logic" simplifies the page
   initialization logic in kho_restore_page() (Pratyush Yadav)

 - "Unload linux/kernel.h" moves several things out of kernel.h and into
   more appropriate places (Yury Norov)

 - "don't abuse task_struct.group_leader" removes the usage of
   ->group_leader when it is "obviously unnecessary" (Oleg Nesterov)

 - "list private v2 & luo flb" adds some infrastructure improvements to
   the live update orchestrator (Pasha Tatashin)

* tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (107 commits)
  watchdog/hardlockup: simplify perf event probe and remove per-cpu dependency
  procfs: fix missing RCU protection when reading real_parent in do_task_stat()
  watchdog/softlockup: fix sample ring index wrap in need_counting_irqs()
  kcsan, compiler_types: avoid duplicate type issues in BPF Type Format
  kho: fix doc for kho_restore_pages()
  tests/liveupdate: add in-kernel liveupdate test
  liveupdate: luo_flb: introduce File-Lifecycle-Bound global state
  liveupdate: luo_file: Use private list
  list: add kunit test for private list primitives
  list: add primitives for private list manipulations
  delayacct: fix uapi timespec64 definition
  panic: add panic_force_cpu= parameter to redirect panic to a specific CPU
  netclassid: use thread_group_leader(p) in update_classid_task()
  RDMA/umem: don't abuse current->group_leader
  drm/pan*: don't abuse current->group_leader
  drm/amd: kill the outdated "Only the pthreads threading model is supported" checks
  drm/amdgpu: don't abuse current->group_leader
  android/binder: use same_thread_group(proc->tsk, current) in binder_mmap()
  android/binder: don't abuse current->group_leader
  kho: skip memoryless NUMA nodes when reserving scratch areas
  ...
2026-02-12 12:13:01 -08:00
Andrei Kuchynski
da87d45b19 usb: typec: ucsi: Add Thunderbolt alternate mode support
Introduce support for Thunderbolt (TBT) alternate mode to the UCSI driver.
This allows the driver to manage the entry and exit of TBT altmode by
providing the necessary typec_altmode_ops.

ucsi_altmode_update_active() is invoked when the Connector Partner Changed
bit is set in the GET_CONNECTOR_STATUS data. This ensures that the
alternate mode's active state is synchronized with the current mode the
connector is operating in.

Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260206115754.828954-1-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-06 15:32:13 +01:00
Jan Remmet
b3f9d6e491 usb: typec: hd3ss3220: Check if regulator needs to be switched
Check regulator state as peripheral and detach can disable vbus.
Without this check we will try to disable the regulator twice if
we disconnect host and then connect as device.

Fixes: 27fbc19e52 ("usb: typec: hd3ss3220: Enable VBUS based on role state")
Signed-off-by: Jan Remmet <j.remmet@phytec.de>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linu.intel.com>
Link: https://patch.msgid.link/20260206-wip-jremmet-hd3ss3220_vbus_split-v4-1-ee5b4e402187@phytec.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-06 11:23:50 +01:00
Sebastian Andrzej Siewior
a7fb84ea70 usb: typec: fusb302: Remove IRQF_ONESHOT
Passing IRQF_ONESHOT ensures that the interrupt source is masked until
the secondary (threaded) handler is done. If only a primary handler is
used then the flag makes no sense because the interrupt can not fire
(again) while its handler is running.

The flag also prevents force-threading of the primary handler and the
irq-core will warn about this.

Remove IRQF_ONESHOT from irqflags.

Fixes: 309b6341d5 ("usb: typec: fusb302: Revert incorrect threaded irq fix")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260128095540.863589-12-bigeasy@linutronix.de
2026-02-01 17:37:16 +01:00
Andrei Kuchynski
ffbe78fdbb usb: typec: ucsi: Enforce mode selection for cros_ec_ucsi
The mode selection sequence is initiated by the driver after all partner
alternate modes have been successfully registered.
When a partner is disconnected, the driver also stops the mode selection
process and releases resources via `typec_mode_selection_delete`.

Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260119131824.2529334-8-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23 17:18:01 +01:00
Andrei Kuchynski
ab2588c040 usb: typec: ucsi: Support mode selection to activate altmodes
If the ucsi port driver supports modes selection, it should implement
`add_partner_altmodes` and `remove_partner_altmodes` ucsi operations. With
these operations the driver can manage the mode selection process.
Once partner altmodes are registered, `add_partner_altmodes` is called to
start the mode selection. When the partner is unregistered,
`remove_partner_altmodes` is supposed to stop any ongoing processes and
clean up the resources.

`typec_altmode_state_update` informes mode selection about the current mode
of the Type-C connector.

Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260119131824.2529334-7-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23 17:18:01 +01:00
Andrei Kuchynski
be727d4000 usb: typec: Introduce mode_selection bit
The port driver sets this bit for an alternate mode description to indicate
support for the mode selection feature. Once set, individual Alt Mode
drivers will no longer attempt to activate their respective modes within
their probe functions. This prevents race conditions and non-prioritized
activation.
The bit is not set by default. If left unset, the system retains the
current behavior where Alt Mode drivers manage their own activation logic.

Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260119131824.2529334-6-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23 17:18:01 +01:00
Andrei Kuchynski
fb2abc7546 usb: typec: Implement mode selection
The mode selection process is controlled by the following API functions,
which allow to initiate and complete mode entry based on the priority of
each mode:

`typec_mode_selection_start` function compiles a priority list of supported
Alternate Modes.
`typec_altmode_state_update` function is invoked by the port driver to
communicate the current mode of the Type-C connector.
`typec_mode_selection_delete` function stops the currently running mode
selection process and releases all associated system resources.

`mode_selection_work_fn` task attempts to activate modes. The process stops
on success; otherwise, it proceeds to the next mode after a timeout or
error.

Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260119131824.2529334-5-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23 17:18:01 +01:00
Andrei Kuchynski
027b304ca3 usb: typec: Expose alternate mode priority via sysfs
This patch introduces a priority sysfs attribute to the USB Type-C
alternate mode port interface. This new attribute allows user-space to
configure the numeric priority of alternate modes managing their preferred
order of operation. If a new priority value conflicts with an existing
mode's priority, the priorities of the conflicting mode and all subsequent
modes are automatically incremented to ensure uniqueness.

Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260119131824.2529334-4-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23 17:18:01 +01:00
Andrei Kuchynski
dfd7b082c0 usb: typec: Add mode_control field to port property
This new field in the port properties dictates whether the Platform Policy
Manager (PPM) allows the OS Policy Manager (OPM) to change the currently
active, negotiated alternate mode.

Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Link: https://patch.msgid.link/20260119131824.2529334-2-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23 17:18:01 +01:00
Jan Remmet
27fbc19e52 usb: typec: hd3ss3220: Enable VBUS based on role state
For systems where the ID pin isn't available as gpio use the ATTACHED_STATE
register instead to control vbus.

>From the datasheet:
"This is an additional method to communicate attach other
than the ID pin. These bits can be read by the application to
determine what was attached."

Use this method if id-gpios property is not set, but the connector node
has vbus-supply defined.

Signed-off-by: Jan Remmet <j.remmet@phytec.de>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260115-wip-jremmet-hd3ss3220_vbus-v1-1-b7d9adfbe346@phytec.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23 17:16:18 +01:00
Randy Dunlap
24c776355f kernel.h: drop hex.h and update all hex.h users
Remove <linux/hex.h> from <linux/kernel.h> and update all users/callers of
hex.h interfaces to directly #include <linux/hex.h> as part of the process
of putting kernel.h on a diet.

Removing hex.h from kernel.h means that 36K C source files don't have to
pay the price of parsing hex.h for the roughly 120 C source files that
need it.

This change has been build-tested with allmodconfig on most ARCHes.  Also,
all users/callers of <linux/hex.h> in the entire source tree have been
updated if needed (if not already #included).

Link: https://lkml.kernel.org/r/20251215005206.2362276-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Yury Norov (NVIDIA) <yury.norov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20 19:44:19 -08:00
Greg Kroah-Hartman
5ac87cd859 Merge 6.19-rc6 usb-next
We need the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-19 10:24:11 +01:00
Arnaud Ferraris
1366cd228b tcpm: allow looking for role_sw device in the main node
If ports are defined in the tcpc main node, fwnode_usb_role_switch_get()
returns an error, meaning usb_role_switch_get() (which would succeed)
never gets a chance to run as port->role_sw isn't NULL, causing a
regression on devices where this is the case.

Fix this by turning the NULL check into IS_ERR_OR_NULL(), so
usb_role_switch_get() can actually run and the device get properly probed.

Fixes: 2d8713f807 ("tcpm: switch check for role_sw device with fw_node")
Cc: stable <stable@kernel.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Signed-off-by: Arnaud Ferraris <arnaud.ferraris@collabora.com>
Link: https://patch.msgid.link/20260105-fix-ppp-power-v2-1-6924f5a41224@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-07 16:28:05 +01:00
Randy Dunlap
c5177144b5 usb: typec: ucsi: drop an unused Kconfig symbol
EXTCON_TCSS_CROS_EC isn't used anywhere else in the kernel tree,
so drop it from this Kconfig file.

(unless it should be EXTCON_USBC_CROS_EC ?)

Fixes: f1a2241778 ("usb: typec: ucsi: Implement ChromeOS UCSI driver")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Link: https://patch.msgid.link/20251228190604.2484082-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-07 16:14:15 +01:00
Andy Yan
065a923dd5 USB: typec: tcpm: Fix a typo
There should be a space between the two words: Responder and supports.

Signed-off-by: Andy Yan <andyshrk@163.com>
Link: https://patch.msgid.link/20251229011624.146700-1-andyshrk@163.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-07 16:13:07 +01:00