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Linus Torvalds 0cee54c890 USB / Thunderbolt patches for 5.11-rc1
Here is the big USB and thunderbolt pull request for 5.11-rc1.
 
 Nothing major in here, just the grind of constant development to support
 new hardware and fix old issues:
   - thunderbolt updates for new USB4 hardware
   - cdns3 major driver updates
   - lots of typec updates and additions as more hardware is available
   - usb serial driver updates and fixes
   - other tiny USB driver updates
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt updates from Greg KH:
 "Here is the big USB and thunderbolt pull request for 5.11-rc1.

  Nothing major in here, just the grind of constant development to
  support new hardware and fix old issues:

   - thunderbolt updates for new USB4 hardware

   - cdns3 major driver updates

   - lots of typec updates and additions as more hardware is available

   - usb serial driver updates and fixes

   - other tiny USB driver updates

  All have been in linux-next with no reported issues"

* tag 'usb-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (172 commits)
  usb: phy: convert comma to semicolon
  usb: ucsi: convert comma to semicolon
  usb: typec: tcpm: convert comma to semicolon
  usb: typec: tcpm: Update vbus_vsafe0v on init
  usb: typec: tcpci: Enable bleed discharge when auto discharge is enabled
  usb: typec: Add class for plug alt mode device
  USB: typec: tcpci: Add Bleed discharge to POWER_CONTROL definition
  USB: typec: tcpm: Add a 30ms room for tPSSourceOn in PR_SWAP
  USB: typec: tcpm: Fix PR_SWAP error handling
  USB: typec: tcpm: Hard Reset after not receiving a Request
  USB: gadget: f_fs: remove likely/unlikely
  usb: gadget: f_fs: Re-use SS descriptors for SuperSpeedPlus
  USB: gadget: f_midi: setup SuperSpeed Plus descriptors
  USB: gadget: f_acm: add support for SuperSpeed Plus
  USB: gadget: f_rndis: fix bitrate for SuperSpeed and above
  usb: typec: intel_pmc_mux: Configure cable generation value for USB4
  MAINTAINERS: Add myself as a reviewer for CADENCE USB3 DRD IP DRIVER
  usb: chipidea: ci_hdrc_imx: Use of_device_get_match_data()
  usb: chipidea: usbmisc_imx: Use of_device_get_match_data()
  usb: cdns3: fix NULL pointer dereference on no platform data
  ...
2020-12-15 13:54:56 -08:00
Greg Kroah-Hartman 007e337080 USB-serial updates for 5.11-rc1
Here are the USB-serial updates for 5.11-rc1, including:
 
  - keyspan_pda write-implementation fixes
  - digi_acceleport write-wakeup fix
  - mos7720 parport-restore fix
  - mos7720 parport-tasklet removal
  - cp210x termios-handling cleanups
  - option device-flag fix
  - ftdi_sio GPIO CBUS-configuration improvements
  - removal of in_interrupt() uses
 
 Included are also various clean ups.
 
 All have been in linux-next with no reported issues.
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Merge tag 'usb-serial-5.11-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next

Johan writes:

USB-serial updates for 5.11-rc1

Here are the USB-serial updates for 5.11-rc1, including:

 - keyspan_pda write-implementation fixes
 - digi_acceleport write-wakeup fix
 - mos7720 parport-restore fix
 - mos7720 parport-tasklet removal
 - cp210x termios-handling cleanups
 - option device-flag fix
 - ftdi_sio GPIO CBUS-configuration improvements
 - removal of in_interrupt() uses

Included are also various clean ups.

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

* tag 'usb-serial-5.11-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: (30 commits)
  USB: serial: ftdi_sio: log the CBUS GPIO validity
  USB: serial: ftdi_sio: drop GPIO line checking dead code
  USB: serial: ftdi_sio: report the valid GPIO lines to gpiolib
  USB: serial: option: add interface-number sanity check to flag handling
  USB: serial: cp210x: clean up dtr_rts()
  USB: serial: cp210x: refactor flow-control handling
  USB: serial: cp210x: drop flow-control debugging
  USB: serial: cp210x: set terminal settings on open
  USB: serial: cp210x: clean up line-control handling
  USB: serial: cp210x: return early on unchanged termios
  USB: serial: mos7720: defer state restore to a workqueue
  USB: serial: mos7720: fix parallel-port state restore
  USB: serial: remove write wait queue
  USB: serial: digi_acceleport: fix write-wakeup deadlocks
  USB: serial: keyspan_pda: drop redundant usb-serial pointer
  USB: serial: keyspan_pda: use BIT() macro
  USB: serial: keyspan_pda: clean up comments and whitespace
  USB: serial: keyspan_pda: clean up xircom/entrega support
  USB: serial: keyspan_pda: add write-fifo support
  USB: serial: keyspan_pda: increase transmitter threshold
  ...
2020-12-11 16:16:52 +01:00
Kyle Tso fe79d5de77 USB: typec: tcpm: Add a 30ms room for tPSSourceOn in PR_SWAP
TCPM state machine needs 20-25ms to enter the ErrorRecovery state after
tPSSourceOn timer timeouts. Change the timer from max 480ms to 450ms to
ensure that the timer complies with the Spec. In order to keep the
flexibility for other usecases using tPSSourceOn, add another timer only
for PR_SWAP.

Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Kyle Tso <kyletso@google.com>
Signed-off-by: Will McVicker <willmcvicker@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20201210160521.3417426-5-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-11 10:51:38 +01:00
Badhri Jagan Sridharan 28b43d3d74 usb: typec: tcpm: Introduce vsafe0v for vbus
TCPM at present lacks the notion of VSAFE0V. There
are three vbus threshold levels that are critical to track:
a. vSafe5V         - VBUS “5 volts” as defined by the USB
                     PD specification.
b. vSinkDisconnect - Threshold used for transition from
                     Attached.SNK to Unattached.SNK.
c. vSafe0V         - VBUS “0 volts” as defined by the USB
                     PD specification.

Tracking vSafe0V is crucial for entry into Try.SNK and
Attached.SRC and turning vbus back on by the source in
response to hard reset.

>From "4.5.2.2.8.2 Exiting from AttachWait.SRC State" section
in the Type-C spec:

"The port shall transition to Attached.SRC when VBUS is at
vSafe0V and the SRC.Rd state is detected on exactly one of
the CC1 or CC2 pins for at least tCCDebounce."

"A DRP that strongly prefers the Sink role may optionally
transition to Try.SNK instead of Attached.SRC when VBUS
is at vSafe0V and the SRC.Rd state is detected on exactly
one of the CC1 or CC2 pins for at least tCCDebounce."

>From "7.1.5 Response to Hard Resets" section in the PD spec:

"After establishing the vSafe0V voltage condition on VBUS,
the Source Shall wait tSrcRecover before re-applying VCONN
and restoring VBUS to vSafe5V."

vbus_present in the TCPM code tracks vSafe5V(vbus_present is true)
and vSinkDisconnect(vbus_present is false).

This change adds is_vbus_vsafe0v callback which when set makes
TCPM query for vSafe0V voltage level when needed.

Since not all TCPC controllers might have the capability
to report vSafe0V, TCPM assumes that vSafe0V is same as
vSinkDisconnect when is_vbus_vsafe0v callback is not set.
This allows TCPM to continue to support controllers which don't
have the support for reporting vSafe0V.

Introducing vSafe0V helps fix the failure reported at
"Step 15. CVS verifies PUT remains in AttachWait.SRC for 500ms"
of "TD 4.7.2 Try. SNK DRP Connect DRP Test" of
"Universal Serial Bus Type-C (USB Type-C) Functional Test
Specification Chapters 4 and 5". Here the compliance tester
intentionally maintains vbus at greater than vSafe0V and expects
the Product under test to stay in AttachWait.SRC till vbus drops
to vSafe0V.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20201202040840.663578-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 14:49:54 +01:00
Badhri Jagan Sridharan e4a9378083 usb: typec: tcpm: Pass down negotiated rev to update retry count
nRetryCount was updated from 3 to 2 between PD2.0 and PD3.0 spec.
nRetryCount in "Table 6-34 Counter parameters" of the PD 2.0
spec is set to 3, whereas, nRetryCount in "Table 6-59 Counter
parameters" is set to 2.

Pass down negotiated rev in pd_transmit so that low level chip
drivers can update the retry count accordingly before attempting
packet transmission.

This helps in passing "TEST.PD.PORT.ALL.02" of the
"Power Delivery Merged" test suite which was initially failing
with "The UUT did not retransmit the message nReryCount times"

In fusb302 & tcpci drivers, by default the driver sets the retry
count to 3 (Default for PD 2.0). Update this to 2,
if the negotiated rev is PD 3.0.

In wcove, since the retry count is intentionally set to max, leaving
it as is.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20201202031733.647808-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 14:42:10 +01:00
Badhri Jagan Sridharan 11e5e568ce usb: typec: tcpm: Stay in SNK_TRY_WAIT_DEBOUNCE_CHECK_VBUS till Rp is seen
TD.4.7.3. Try SNK DRP Connect Try.SRC DRP fails. The compliance
tester mimics being a Try.SRC USB-C port.
The failure is due to TCPM exiting SNK_TRY_WAIT_DEBOUNCE_CHECK_VBUS
when VBUS is not present eventhough when SNK.Rp is seen. Exit to
SRC_TRYWAIT from SNK_TRY_WAIT_DEBOUNCE_CHECK_VBUS only when SNK.Rp
is not seen for PD_T_TRY_CC_DEBOUNCE.

>From the spec:
The port shall then transition to Attached.SNK when the SNK.Rp state
is detected on exactly one of the CC1 or CC2 pins for at least
tTryCCDebounce and VBUS is detected. Alternatively, the port shall
transition to TryWait.SRC if SNK.Rp state is not detected for
tTryCCDebounce.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20201125014804.1596719-1-badhri@google.com
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 13:40:38 +01:00
Heikki Krogerus 7656ca71b0 usb: pd: DFP product types
USB Power Delivery Specification R3.0 introduced separate
field for the DFP product type to the ID Header VDO.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201125120642.37156-2-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:18:56 +01:00
Prashant Malani e1e52361c6 usb: typec: Add plug num_altmodes sysfs attr
Add a field to the typec_plug struct to record the number of available
altmodes as well as the corresponding sysfs attribute to expose this to
userspace.

This allows userspace to determine whether there are any
remaining alternate modes left to be registered by the kernel driver. It
can begin executing any policy state machine after all available
alternate modes have been registered with the connector class framework.

This value is set to "-1" initially, signifying that a valid number of
alternate modes haven't been set for the plug. The sysfs file remains
hidden as long as the attribute value is -1.

We re-use the partner attribute for number_of_alternate_modes since the
usage and name is similar, and update the corresponding *_show() command
to support both partner and plugs.

Signed-off-by: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201116201150.2919178-4-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18 13:15:58 +01:00
Badhri Jagan Sridharan f321a02cae usb: typec: tcpm: Implement enabling Auto Discharge disconnect support
TCPCI spec allows TCPC hardware to autonomously discharge the vbus
capacitance upon disconnect. The expectation is that the TCPM enables
AutoDischargeDisconnect while entering SNK/SRC_ATTACHED states. Hardware
then automously discharges vbus when the vbus falls below a certain
threshold i.e. VBUS_SINK_DISCONNECT_THRESHOLD.

Apart from enabling the vbus discharge circuit, AutoDischargeDisconnect
is also used a flag to move TCPCI based TCPC implementations into
Attached.Snk/Attached.Src state as mentioned in
Figure 4-15. TCPC State Diagram before a Connection of the
USB Type-C Port Controller Interface Specification.
In such TCPC implementations, setting AutoDischargeDisconnect would
prevent TCPC into entering "Connection_Invalid" state as well.

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201029063138.1429760-8-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18 12:57:49 +01:00
Badhri Jagan Sridharan a30a00e37c usb: typec: tcpm: frs sourcing vbus callback
During FRS hardware autonomously starts to source vbus. Provide
callback to perform chip specific operations.

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201029063138.1429760-5-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18 12:56:58 +01:00
Prashant Malani a0ccdc4a77 usb: typec: Add number of altmodes partner attr
Add a user-visible attribute for the number of alternate modes available
in a partner. This allows userspace to determine whether there are any
remaining alternate modes left to be registered by the kernel driver. It
can begin executing any policy state machine after all available
alternate modes have been registered with the connector class framework.

This value is set to "-1" initially, signifying that a valid number of
alternate modes haven't been set for the partner.

Also add a sysfs file which exposes this attribute. The file remains
hidden as long as the attribute value is -1.

Cc: Benson Leung <bleung@chromium.org>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201116201150.2919178-3-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18 12:55:46 +01:00
Prashant Malani 8a5ca78f60 usb: pd: Add captive Type C cable type
The USB Power Delivery Specification R3.0 adds a captive cable type
to the "USB Type-C plug to USB Type-C/Captive" field (Bits 19-18,
Passive/Active Cable VDO, Table 6-38 & 6-39).

Add the corresponding definition to the Cable VDO header. Also add a
helper macro to get the Type C cable connector type, when provided
the cable VDO.

Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201116201150.2919178-2-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18 12:55:46 +01:00
Utkarsh Patel 523a97aa3b usb: typec: Remove one bit support for the Thunderbolt rounded/non-rounded cable
Two bits support for the Thunderbolt rounded/non-rounded cable has been
added to the header file.
Hence, removing unused TBT_CABLE_ROUNDED definition from the header file.

Signed-off-by: Utkarsh Patel <utkarsh.h.patel@intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
--
changes in v2:
- Removed the fixes tag as there is no functional implication.
--
Link: https://lore.kernel.org/r/20201113202503.6559-5-utkarsh.h.patel@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18 12:53:45 +01:00
Utkarsh Patel 13d40ff85d usb: typec: Correct the bit values for the Thunderbolt rounded/non-rounded cable support
Rounded and non-rounded Thunderbolt cables are represented by two bits as
per USB Type-C Connector specification v2.0 section F.2.6.
Corrected that in the Thunderbolt 3 cable discover mode VDO.

Signed-off-by: Utkarsh Patel <utkarsh.h.patel@intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
--
Changes in v2:
- Removed the fixes tag as there is no functional implication.
--
Link: https://lore.kernel.org/r/20201113202503.6559-2-utkarsh.h.patel@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18 12:53:45 +01:00
Sebastian Andrzej Siewior 56c62080d5 usb: hcd.h: Remove RUN_CONTEXT
The last user of RUN_CONTEXT was removed in commit
   97c17beb3b668 ("[PATCH] ehci-hcd (1/2):  portability (2.4), tasklet,")
in the history.git repo.

There are no users of RUN_CONTEXT, remove it.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/20201113212704.2243807-1-bigeasy@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-14 11:24:49 +01:00
Heiner Kallweit 323955a049 net: usb: switch to dev_get_tstats64 and remove usbnet_get_stats64 alias
Replace usbnet_get_stats64() with new identical core function
dev_get_tstats64() in all users and remove usbnet_get_stats64().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-12 14:58:27 -08:00
Heiner Kallweit af0c351cc3 usbnet: switch to core handling of rx/tx byte/packet counters
Use netdev->tstats instead of a member of usbnet for storing a pointer
to the per-cpu counters. This allows us to use core functionality for
statistics handling.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-12 14:58:27 -08:00
Jakub Kicinski ae0d0bb29b Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-06 17:33:38 -08:00
Hayes Wang c1aedf015e net/usb/r8153_ecm: support ECM mode for RTL8153
Support ECM mode based on cdc_ether with relative mii functions,
when CONFIG_USB_RTL8152 is not set, or the device is not supported
by r8152 driver.

Both r8152 and r8153_ecm would check the return value of
rtl8152_get_version() in porbe(). If rtl8152_get_version()
return none zero value, the r8152 is used for the device
with vendor mode. Otherwise, the r8153_ecm is used for the
device with ECM mode.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Link: https://lore.kernel.org/r/1394712342-15778-392-Taiwan-albertk@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-05 16:58:48 -08:00
Johan Hovold 179dfb9547 USB: serial: remove write wait queue
The digi_acceleport driver is the only driver still using the port
write wake queue so move it to that driver's port data.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-11-04 11:11:29 +01:00
Mauro Carvalho Chehab cbdc0f5456 usb: fix kernel-doc markups
There is a common comment marked, instead, with kernel-doc
notation.

Also, some identifiers have different names between their
prototypes and the kernel-doc markup.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Felipe Balbi <balbi@kernel.org>
Link: https://lore.kernel.org/r/0b964be3884def04fcd20ea5c12cb90d0014871c.1603469755.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-28 13:18:56 +01:00
Linus Torvalds 54a4c789ca docs updates for v5.10-rc1
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Merge tag 'docs/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull documentation updates from Mauro Carvalho Chehab:
 "A series of patches addressing warnings produced by make htmldocs.
  This includes:

   - kernel-doc markup fixes

   - ReST fixes

   - Updates at the build system in order to support newer versions of
     the docs build toolchain (Sphinx)

  After this series, the number of html build warnings should reduce
  significantly, and building with Sphinx 3.1 or later should now be
  supported (although it is still recommended to use Sphinx 2.4.4).

  As agreed with Jon, I should be sending you a late pull request by the
  end of the merge window addressing remaining issues with docs build,
  as there are a number of warning fixes that depends on pull requests
  that should be happening along the merge window.

  The end goal is to have a clean htmldocs build on Kernel 5.10.

  PS. It should be noticed that Sphinx 3.0 is not currently supported,
  as it lacks support for C domain namespaces. Such feature, needed in
  order to document uAPI system calls with Sphinx 3.x, was added only on
  Sphinx 3.1"

* tag 'docs/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (75 commits)
  PM / devfreq: remove a duplicated kernel-doc markup
  mm/doc: fix a literal block markup
  workqueue: fix a kernel-doc warning
  docs: virt: user_mode_linux_howto_v2.rst: fix a literal block markup
  Input: sparse-keymap: add a description for @sw
  rcu/tree: docs: document bkvcache new members at struct kfree_rcu_cpu
  nl80211: docs: add a description for s1g_cap parameter
  usb: docs: document altmode register/unregister functions
  kunit: test.h: fix a bad kernel-doc markup
  drivers: core: fix kernel-doc markup for dev_err_probe()
  docs: bio: fix a kerneldoc markup
  kunit: test.h: solve kernel-doc warnings
  block: bio: fix a warning at the kernel-doc markups
  docs: powerpc: syscall64-abi.rst: fix a malformed table
  drivers: net: hamradio: fix document location
  net: appletalk: Kconfig: Fix docs location
  dt-bindings: fix references to files converted to yaml
  memblock: get rid of a :c:type leftover
  math64.h: kernel-docs: Convert some markups into normal comments
  media: uAPI: buffer.rst: remove a left-over documentation
  ...
2020-10-16 15:02:21 -07:00
Mauro Carvalho Chehab 1b7743912b usb: docs: document altmode register/unregister functions
The typec_bus.rst asks for documentation of those two
functions, but they don't exist:

	./drivers/usb/typec/bus.c:1: warning: 'typec_altmode_unregister_driver' not found
	./drivers/usb/typec/bus.c:1: warning: 'typec_altmode_register_driver' not found

Also, they're not declared on bus.c but, instead, at a header
file (typec_altmode.h).

So, add documentation for both functions at the header and
change the kernel-doc markup under typec_bus.rst to point
to the right place.

While here, also place the documentation for both structs
declared on typec_altmode.h at the rst file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:48 +02:00
Badhri Jagan Sridharan 8dc4bd0736 usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS)
PD 3.0 spec defines a new mechanism for power role swap called
Fast role swap. This change enables TCPM to support FRS when
acting as sink.

Once the explicit contract is negotiated, sink port is
expected to query the source port for sink caps to
determine whether the source is FRS capable.
Bits 23 & 24 of fixed pdo of the sink caps from the source, when
set, indicates the current needed by the source when fast role
swap is in progress(Implicit contract phasae). 0 indicates that
the source does not support Fast Role Swap.

Upon receiving the FRS signal from the source,
TCPC(TCPM_FRS_EVENT) informs TCPM to start the Fast role swap sequence.

1. TCPM sends FRS PD message: FR_SWAP_SEND
2. If response is not received within the expiry of
   SenderResponseTimer, Error recovery is triggered.:
   FR_SWAP_SEND_TIMEOUT
3. Upon receipt of the accept message, TCPM waits for
   PSSourceOffTimer for PS_READY message from the partner:
   FR_SWAP_SNK_SRC_NEW_SINK_READY.

TCPC is expected to autonomously turn on vbus once the FRS
signal is received and vbus voltage falls below vsafe5v within
tSrcFrSwap. This is different from traditional power role swap
where the vbus sourcing is turned on by TCPM.

4. By this time, TCPC most likely would have started to
   source vbus, TCPM waits for tSrcFrSwap to see  if the
   lower level TCPC driver signals TCPM_SOURCING_VBUS event:
   FR_SWAP_SNK_SRC_SOURCE_VBUS_APPLIED.
5. When TCPC signals sourcing vbus, TCPM sends PS_READY msg and
   changes the CC pin from Rd to Rp. This is the end of fast
   role swap sequence and TCPM initiates the sequnce to negotiate
   explicit contract by transitioning into SRC_STARTUP after
   SwapSrcStart.

The code is written based on the sequence described in "Figure 8-107:
Dual-role Port in Sink to Source Fast Role Swap State Diagram" of
USB Power Delivery Specification Revision 3.0, Version 1.2.

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201008061556.1402293-7-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-08 09:28:22 +02:00
Greg Kroah-Hartman 21c949b218 USB: changes for v5.10 merge window
Most of changes are on dwc3 (38.8%) with cdns3 falling close
 behind (24.1%).
 
 The biggest changes here are a series of non-critical fixes to corner
 cases on dwc3, produced by Thinh N, and a series of major improvements
 to cdns3 produced by Peter C.
 
 We also have the traditional set of new device support (Intel Keem
 Bay, Hikey 970) on dwc3. A series of sparse/coccinelle and checkpatch
 fixes on dwc3 by yours truly and a set of minor changes all over the
 stack.
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Merge tag 'usb-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

USB: changes for v5.10 merge window

Most of changes are on dwc3 (38.8%) with cdns3 falling close
behind (24.1%).

The biggest changes here are a series of non-critical fixes to corner
cases on dwc3, produced by Thinh N, and a series of major improvements
to cdns3 produced by Peter C.

We also have the traditional set of new device support (Intel Keem
Bay, Hikey 970) on dwc3. A series of sparse/coccinelle and checkpatch
fixes on dwc3 by yours truly and a set of minor changes all over the
stack.

* tag 'usb-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb: (117 commits)
  usb: dwc2: Fix INTR OUT transfers in DDMA mode.
  usb: dwc2: don't use ID/Vbus detection if usb-role-switch on STM32MP15 SoCs
  usb: dwc2: override PHY input signals with usb role switch support
  dt-bindings: usb: dwc2: add optional usb-role-switch property
  usb: dwc3: of-simple: Add compatible string for Intel Keem Bay platform
  dt-bindings: usb: Add Intel Keem Bay USB controller bindings
  usb: dwc3: gadget: Support up to max stream id
  usb: dwc3: gadget: Return early if no TRB update
  usb: dwc3: gadget: Keep TRBs in request order
  usb: dwc3: gadget: Revise setting IOC when no TRB left
  usb: dwc3: gadget: Look ahead when setting IOC
  usb: dwc3: gadget: Allow restarting a transfer
  usb: bdc: remove duplicated error message
  usb: dwc3: Stop active transfers before halting the controller
  usb: cdns3: gadget: enlarge the TRB ring length
  usb: cdns3: gadget: sg_support is only for DEV_VER_V2 or above
  usb: cdns3: gadget: need to handle sg case for workaround 2 case
  usb: cdns3: gadget: handle sg list use case at completion correctly
  usb: cdns3: gadget: add CHAIN and ISP bit for sg list use case
  usb: cdns3: gadget: improve the dump TRB operation at cdns3_ep_run_transfer
  ...
2020-10-03 15:59:57 +02:00
Amelie Delaunay 12f3467b0d usb: typec: add typec_find_pwr_opmode
This patch adds a function that converts power operation mode string into
power operation mode value.

It is useful to configure power operation mode through device tree
property, as power capabilities may be linked to hardware design.

Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20200924090049.9041-3-amelie.delaunay@st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02 15:30:31 +02:00
Alan Stern 3301c215a2 USB: UDC: Expand device model API interface
The routines used by the UDC core to interface with the kernel's
device model, namely usb_add_gadget_udc(),
usb_add_gadget_udc_release(), and usb_del_gadget_udc(), provide access
to only a subset of the device model's full API.  They include
functionality equivalent to device_register() and device_unregister()
for gadgets, but they omit device_initialize(), device_add(),
device_del(), get_device(), and put_device().

This patch expands the UDC API by adding usb_initialize_gadget(),
usb_add_gadget(), usb_del_gadget(), usb_get_gadget(), and
usb_put_gadget() to fill in the gap.  It rewrites the existing
routines to call the new ones.

CC: Anton Vasilyev <vasilyev@ispras.ru>
CC: Evgeny Novikov <novikov@ispras.ru>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-10-02 09:57:41 +03:00
Badhri Jagan Sridharan aefc66afe4 usb: typec: pd: Fix formatting in pd.h header
Replacing spaces with tabs for PD_T_* constants.

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20200817183828.1895015-2-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-28 09:49:42 +02:00
Badhri Jagan Sridharan 6bbe2a90a0 usb: typec: tcpm: During PR_SWAP, source caps should be sent only after tSwapSourceStart
The patch addresses the compliance test failures while running
TD.PD.CP.E3, TD.PD.CP.E4, TD.PD.CP.E5 of the "Deterministic PD
Compliance MOI" test plan published in https://www.usb.org/usbc.
For a product to be Type-C compliant, it's expected that these tests
are run on usb.org certified Type-C compliance tester as mentioned in
https://www.usb.org/usbc.

The purpose of the tests TD.PD.CP.E3, TD.PD.CP.E4, TD.PD.CP.E5 is to
verify the PR_SWAP response of the device. While doing so, the test
asserts that Source Capabilities message is NOT received from the test
device within tSwapSourceStart min (20 ms) from the time the last bit
of GoodCRC corresponding to the RS_RDY message sent by the UUT was
sent. If it does then the test fails.

This is in line with the requirements from the USB Power Delivery
Specification Revision 3.0, Version 1.2:
"6.6.8.1 SwapSourceStartTimer
The SwapSourceStartTimer Shall be used by the new Source, after a
Power Role Swap or Fast Role Swap, to ensure that it does not send
Source_Capabilities Message before the new Sink is ready to receive
the
Source_Capabilities Message. The new Source Shall Not send the
Source_Capabilities Message earlier than tSwapSourceStart after the
last bit of the EOP of GoodCRC Message sent in response to the PS_RDY
Message sent by the new Source indicating that its power supply is
ready."

The patch makes sure that TCPM does not send the Source_Capabilities
Message within tSwapSourceStart(20ms) by transitioning into
SRC_STARTUP only after  tSwapSourceStart(20ms).

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20200817183828.1895015-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-28 09:49:30 +02:00
Linus Torvalds 47ec5303d7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:

 1) Support 6Ghz band in ath11k driver, from Rajkumar Manoharan.

 2) Support UDP segmentation in code TSO code, from Eric Dumazet.

 3) Allow flashing different flash images in cxgb4 driver, from Vishal
    Kulkarni.

 4) Add drop frames counter and flow status to tc flower offloading,
    from Po Liu.

 5) Support n-tuple filters in cxgb4, from Vishal Kulkarni.

 6) Various new indirect call avoidance, from Eric Dumazet and Brian
    Vazquez.

 7) Fix BPF verifier failures on 32-bit pointer arithmetic, from
    Yonghong Song.

 8) Support querying and setting hardware address of a port function via
    devlink, use this in mlx5, from Parav Pandit.

 9) Support hw ipsec offload on bonding slaves, from Jarod Wilson.

10) Switch qca8k driver over to phylink, from Jonathan McDowell.

11) In bpftool, show list of processes holding BPF FD references to
    maps, programs, links, and btf objects. From Andrii Nakryiko.

12) Several conversions over to generic power management, from Vaibhav
    Gupta.

13) Add support for SO_KEEPALIVE et al. to bpf_setsockopt(), from Dmitry
    Yakunin.

14) Various https url conversions, from Alexander A. Klimov.

15) Timestamping and PHC support for mscc PHY driver, from Antoine
    Tenart.

16) Support bpf iterating over tcp and udp sockets, from Yonghong Song.

17) Support 5GBASE-T i40e NICs, from Aleksandr Loktionov.

18) Add kTLS RX HW offload support to mlx5e, from Tariq Toukan.

19) Fix the ->ndo_start_xmit() return type to be netdev_tx_t in several
    drivers. From Luc Van Oostenryck.

20) XDP support for xen-netfront, from Denis Kirjanov.

21) Support receive buffer autotuning in MPTCP, from Florian Westphal.

22) Support EF100 chip in sfc driver, from Edward Cree.

23) Add XDP support to mvpp2 driver, from Matteo Croce.

24) Support MPTCP in sock_diag, from Paolo Abeni.

25) Commonize UDP tunnel offloading code by creating udp_tunnel_nic
    infrastructure, from Jakub Kicinski.

26) Several pci_ --> dma_ API conversions, from Christophe JAILLET.

27) Add FLOW_ACTION_POLICE support to mlxsw, from Ido Schimmel.

28) Add SK_LOOKUP bpf program type, from Jakub Sitnicki.

29) Refactor a lot of networking socket option handling code in order to
    avoid set_fs() calls, from Christoph Hellwig.

30) Add rfc4884 support to icmp code, from Willem de Bruijn.

31) Support TBF offload in dpaa2-eth driver, from Ioana Ciornei.

32) Support XDP_REDIRECT in qede driver, from Alexander Lobakin.

33) Support PCI relaxed ordering in mlx5 driver, from Aya Levin.

34) Support TCP syncookies in MPTCP, from Flowian Westphal.

35) Fix several tricky cases of PMTU handling wrt. briding, from Stefano
    Brivio.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2056 commits)
  net: thunderx: initialize VF's mailbox mutex before first usage
  usb: hso: remove bogus check for EINPROGRESS
  usb: hso: no complaint about kmalloc failure
  hso: fix bailout in error case of probe
  ip_tunnel_core: Fix build for archs without _HAVE_ARCH_IPV6_CSUM
  selftests/net: relax cpu affinity requirement in msg_zerocopy test
  mptcp: be careful on subflow creation
  selftests: rtnetlink: make kci_test_encap() return sub-test result
  selftests: rtnetlink: correct the final return value for the test
  net: dsa: sja1105: use detected device id instead of DT one on mismatch
  tipc: set ub->ifindex for local ipv6 address
  ipv6: add ipv6_dev_find()
  net: openvswitch: silence suspicious RCU usage warning
  Revert "vxlan: fix tos value before xmit"
  ptp: only allow phase values lower than 1 period
  farsync: switch from 'pci_' to 'dma_' API
  wan: wanxl: switch from 'pci_' to 'dma_' API
  hv_netvsc: do not use VF device if link is down
  dpaa2-eth: Fix passing zero to 'PTR_ERR' warning
  net: macb: Properly handle phylink on at91sam9x
  ...
2020-08-05 20:13:21 -07:00
Greg Kroah-Hartman 107c894975 ENDIAN issue fix and one query controller role API is introduced.
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Merge tag 'usb-ci-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next

Peter writes:

ENDIAN issue fix and one query controller role API is introduced.

* tag 'usb-ci-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb:
  usb: chipidea: imx: get available runtime dr mode for wakeup setting
  usb: chipidea: add query_available_role interface
  Documentation: ABI: usb: chipidea: Update Li Jun's e-mail
  usb: chipidea: udc: fix the ENDIAN issue
2020-07-29 13:57:09 +02:00
Greg Kroah-Hartman fa56dd9152 USB-serial updates for 5.9-rc1
Here are the USB-serial updates for 5.9-rc1, including:
 
  - console flow-control support
  - simulated line-breaks on some ch341
  - hardware flow-control fixes for cp210x
  - break-detection and sysrq fixes for ftdi_sio
  - sysrq optimisations
  - input parity checking for cp210x
 
 Included are also some new device ids and various clean ups.
 
 All have been in linux-next with no reported issues.
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Merge tag 'usb-serial-5.9-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next

Johan writes:

USB-serial updates for 5.9-rc1

Here are the USB-serial updates for 5.9-rc1, including:

 - console flow-control support
 - simulated line-breaks on some ch341
 - hardware flow-control fixes for cp210x
 - break-detection and sysrq fixes for ftdi_sio
 - sysrq optimisations
 - input parity checking for cp210x

Included are also some new device ids and various clean ups.

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

* tag 'usb-serial-5.9-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: (31 commits)
  USB: serial: qcserial: add EM7305 QDL product ID
  USB: serial: iuu_phoenix: fix led-activity helpers
  USB: serial: sierra: clean up special-interface handling
  USB: serial: cp210x: use in-kernel types in port data
  USB: serial: cp210x: drop unnecessary packed attributes
  USB: serial: cp210x: add support for TIOCGICOUNT
  USB: serial: cp210x: add support for line-status events
  USB: serial: cp210x: disable interface on errors in open
  USB: serial: drop redundant transfer-buffer casts
  USB: serial: drop extern keyword from function declarations
  USB: serial: drop unnecessary sysrq include
  USB: serial: add sysrq break-handler dummy
  USB: serial: inline sysrq dummy function
  USB: serial: only process sysrq when enabled
  USB: serial: only set sysrq timestamp for consoles
  USB: serial: ftdi_sio: fix break and sysrq handling
  USB: serial: ftdi_sio: clean up receive processing
  USB: serial: ftdi_sio: make process-packet buffer unsigned
  USB: serial: use fallthrough pseudo-keyword
  USB: serial: ch341: fix missing simulated-break margin
  ...
2020-07-28 17:33:10 +02:00
Peter Chen 62b9825827
usb: chipidea: add query_available_role interface
The glue layer may need to know current available role to do some
setting, eg, the wakeup setting. So we add ci_hdrc_query_available_role
for that.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
2020-07-28 14:06:59 +08:00
Alexander A. Klimov ffeb1e9e89 USB: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200719160910.60018-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:41:57 +02:00
Badhri Jagan Sridharan 6e1c2241f4 usb: typec: tcpm: Stay in BIST mode till hardreset or unattached
Port starts to toggle when transitioning to unattached state.
This is incorrect while in BIST mode.

6.4.3.1 BIST Carrier Mode
Upon receipt of a BIST Message, with a BIST Carrier Mode BIST Data Object,
the UUT Shall send out a continuous string of BMC encoded alternating "1"s
and “0”s. The UUT Shall exit the Continuous BIST Mode within
tBISTContMode of this Continuous BIST Mode being enabled(see
Section 6.6.7.2).

6.4.3.2 BIST Test Data
Upon receipt of a BIST Message, with a BIST Test Data BIST Data Object,
the UUT Shall return a GoodCRC Message and Shall enter a test mode in which
it sends no further Messages except for GoodCRC Messages in response to
received Messages. See Section 5.9.2 for the definition of the Test Data
Frame. The test Shall be ended by sending Hard Reset Signaling to reset the
UUT.

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200716034128.1251728-3-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:38:21 +02:00
Badhri Jagan Sridharan b2dcfefc43 usb: typec: tcpm: Support bist test data mode for compliance
TCPM supports BIST carried mode. PD compliance tests require
BIST Test Data to be supported as well.

Introducing set_bist_data callback to signal tcpc driver for
configuring the port controller hardware to enable/disable
BIST Test Data mode.

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200716034128.1251728-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:38:21 +02:00
Bjørn Mork 1ea2b748b5 net: usbnet: export usbnet_set_rx_mode()
This function can be reused by other usbnet minidrivers.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-17 12:42:47 -07:00
Miguel Rodríguez Pérez e506addeff net: cdc_ether: export usbnet_cdc_update_filter
This makes the function available to other drivers, like cdc_ncm.

Signed-off-by: Miguel Rodríguez Pérez <miguel@det.uvigo.gal>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-17 12:42:47 -07:00
Randy Dunlap e4dfa80299 usb: linux/usb/gadget.h: fix duplicated word in comment
Change the doubled word "in" to "be in" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Link: https://lore.kernel.org/r/20200715045701.22949-2-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:48:11 +02:00
Randy Dunlap 4e28335f2b usb: linux/usb/serial.h: drop duplicated word in comment
Drop the doubled word "set" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Link: https://lore.kernel.org/r/20200715045701.22949-4-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:48:11 +02:00
Randy Dunlap c76ae34b5a usb: linux/usb/pd_vdo.h: drop duplicated word in comment
Drop the doubled word "all" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Link: https://lore.kernel.org/r/20200715045701.22949-3-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:48:11 +02:00
Johan Hovold 7aab96d6e3 USB: serial: drop extern keyword from function declarations
Drop the redundant extern keyword from function declarations in the
subsystem header file to improve readability (and make it easier to spot
the global variables).

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-09 09:20:14 +02:00
Johan Hovold 1cafb03d5d USB: serial: drop unnecessary sysrq include
There's no need to include sysrq.h in the subsystem header.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-09 09:20:12 +02:00
Johan Hovold 4b5cf2b8f9 USB: serial: add sysrq break-handler dummy
Add inline sysrq break-handler dummy to allow the compiler to eliminate
further code when either console or sysrq support isn't enabled and to
clearly mark the two sysrq functions as belonging together.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-09 09:20:10 +02:00
Johan Hovold 4fbfbdb572 USB: serial: inline sysrq dummy function
Inline the dummy sysrq character handling when either console support or
magic-sysrq support isn't enabled to allow the compiler to eliminate
unused code.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-09 09:20:06 +02:00
Greg Kroah-Hartman c8d141ce1b USB: Fix up terminology in include files
USB is a HOST/DEVICE protocol, as per the specification and all
documentation.  Fix up terms that are not applicable to make things
match up with the terms used through the rest of the USB stack.

Acked-by: Felipe Balbi <balbi@kernel.org>
Link: https://lore.kernel.org/r/20200701171555.3198836-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-02 23:01:11 +02:00
Heikki Krogerus ad8db94d68 usb: typec: Add data structure for Enter_USB message
This data structure can be delivered to the mux drivers when
Enter_USB Message is used exactly the same way as the
Alternate Mode specific data structures are delivered to the
mux drivers when Enter Mode Messages are used.

The Enter_USB data structure shall have all details related
to the Enter_USB Message, most importantly the Enter_USB
Date Object that was used.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20200701115618.22482-3-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-01 14:06:25 +02:00
Heikki Krogerus f470a65548 usb: typec: Combine the definitions for Accessory and USB modes
There is no need to describe them sparately.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20200701115618.22482-2-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-01 14:06:25 +02:00
Greg Kroah-Hartman 91c7eaa686 USB: rename USB quirk to USB_QUIRK_ENDPOINT_IGNORE
The USB core has a quirk flag to ignore specific endpoints, so rename it
to be more obvious what this quirk does.

Cc: Johan Hovold <johan@kernel.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Richard Dodd <richard.o.dodd@gmail.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Jonathan Cox <jonathan@jdcox.net>
Cc: Bastien Nocera <hadess@hadess.net>
Cc: "Thiébaud Weksteen" <tweek@google.com>
Cc: Nishad Kamdar <nishadkamdar@gmail.com>
Link: https://lore.kernel.org/r/20200618094300.1887727-2-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-06-19 08:58:37 +02:00
Greg Kroah-Hartman 37f6c193e6 - Some improvments for ci_hdrc_usb2.c
- Support imx7d USB charger
 - Add software sg support for UDC
 - Enable user trigger role switch
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Merge tag 'usb-ci-v5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next

Peter writes:

- Some improvments for ci_hdrc_usb2.c
- Support imx7d USB charger
- Add software sg support for UDC
- Enable user trigger role switch

* tag 'usb-ci-v5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb:
  usb: chipidea: Enable user-space triggered role-switching
  usb: chipidea: udc: add software sg list support
  usb: chipidea: usbmisc_imx: using different ops for imx7d and imx7ulp
  usb: chipidea: pull down dp for possible charger detection operation
  usb: chipidea: introduce imx7d USB charger detection
  usb: chipidea: introduce CI_HDRC_CONTROLLER_VBUS_EVENT glue layer use
  usb: chipidea: usb2: remove unneeded semicolon
  usb: chipidea: allow disabling glue drivers if EMBEDDED
  usb: chipidea: usb2: absorb zevio glue driver
  usb: chipidea: usb2: make clock optional
  usb: chipidea: usb2: fix formatting
  usb: chipidea: usb2: constify zynq_pdata
  usb: chipidea: core: show the real pointer value for register
  usb: chipidea: core: refine the description for this driver
  usb: chipidea: udc: fix the kernel doc for udc.h
2020-05-26 10:27:14 +02:00