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USB3 PCIe device ID's needs to be updated for the device to enumerate as
a USB3 device on the host for Alder Lake P.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Shruthi Sanil <shruthi.sanil@intel.com>
Link: https://lore.kernel.org/r/20220913055316.23050-3-shruthi.sanil@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The device ID 0x465e is defined for the USB3 device controller in the CPU
sub-system of Alder Lake N platform. Hence updating the macro name
accordingly.
The device ID 0x54ee is defined for the USB2 controller on the PCH
sub-system for Alder Lake N platform. Hence updating the macro name
accordingly.
The device ID's defined for Alder Lake P is shared between
Alder Lake P, Alder Lake PS and Alder Lake M.
Hence updating the macro name to ADL from ADLP to make it common
and keeping it aligned with the xHCI ID's naming convention.
As we have two device controllers on Alder Lake platforms
i.e. one on PCH sub-system and another on CPU sub-system(USB3),
appending _PCH for the USB2 device ID macro to differentiate
between the 2 ID's.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Shruthi Sanil <shruthi.sanil@intel.com>
Link: https://lore.kernel.org/r/20220913055316.23050-2-shruthi.sanil@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When USB is in super-speed mode and disabled as a wakeup source,
observed that on the resume path, lanes have not been configured
properly in the phy-zynqmp driver.
As a result, after the resume, USB device detection failed on host.
To resolved the above issue, added phy_init on resume and phy_exit
on suspend path, to configure the GT lanes correctly.
The re-initialization of phy, reset the device and re-enumerate
the USB subsystem.
This use-case is specific to Xilinx ZynqMP SoC.
Signed-off-by: Piyush Mehta <piyush.mehta@amd.com>
Link: https://lore.kernel.org/r/20220912111017.901321-3-piyush.mehta@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Added system sleep and run-time power management ops support for
dwc3-xilinx glue layer and update function name.
Signed-off-by: Piyush Mehta <piyush.mehta@amd.com>
Link: https://lore.kernel.org/r/20220912111017.901321-2-piyush.mehta@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds the uvc_v4l2_try_format api call to validate
the setting of v4l2_format. It will fallback to the nearest
allowed framesize.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Link: https://lore.kernel.org/r/20220909221335.15033-5-m.grzeschik@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds support to the v4l2 VIDIOCs for enum_format,
enum_framesizes and enum_frameintervals. This way, the userspace
application can use these VIDIOCS to query the via configfs exported
frame capabilities. With thes callbacks the userspace doesn't have to
bring its own configfs parser.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Link: https://lore.kernel.org/r/20220909221335.15033-4-m.grzeschik@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The uvc_format_desc, GUID defines and the uvc_format_by_guid helper is
also useful for the uvc gadget stack. This patch moves them to a common
header.
Tested-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Link: https://lore.kernel.org/r/20220909221335.15033-3-m.grzeschik@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The functions uvc_simplify_fraction and uvc_fraction_to_interval are
generic helpers which are also useful for other v4l2 drivers. This patch
moves them to v4l2-common.
Tested-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Link: https://lore.kernel.org/r/20220909221335.15033-2-m.grzeschik@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Snapdragon 670 has DWC3 USB support. Add a compatible to reflect
that.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Richard Acayan <mailingradian@gmail.com>
Link: https://lore.kernel.org/r/20220922024656.178529-3-mailingradian@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Snapdragon 670 uses the QUSB driver for USB 2.0. Document the
compatible used in the device tree.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Richard Acayan <mailingradian@gmail.com>
Link: https://lore.kernel.org/r/20220922024656.178529-2-mailingradian@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
All Qualcomm SoC DWC3 USB devices have a qcom,dwc3 fallback, thus there
is no need to keep the list of compatibles growing.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220921084654.118230-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
DWC3_EP_DELAYED_STOP is utilized to defer issuing the end transfer command
until the subsequent SETUP stage, in order to avoid end transfer timeouts.
During cable disconnect scenarios, __dwc3_gadget_ep_disable() is
responsible for ensuring endpoints have no active transfers pending. Since
dwc3_remove_request() can now exit early if the EP delayed stop is set,
avoid clearing all DEP flags, otherwise the transition back into the SETUP
stage won't issue an endxfer command.
Fixes: 2b2da6574e77 ("usb: dwc3: Avoid unmapping USB requests if endxfer is not complete")
Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Link: https://lore.kernel.org/r/20220919231213.21364-1-quic_wcheng@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Syzbot found an issue in usbmon module, where the user space client can
corrupt the monitor's internal memory, causing the usbmon module to
crash the kernel with segfault, UAF, etc.
The reproducer mmaps the /dev/usbmon memory to user space, and
overwrites it with arbitrary data, which causes all kinds of issues.
Return an -EPERM error from mon_bin_mmap() if the flag VM_WRTIE is set.
Also clear VM_MAYWRITE to make it impossible to change it to writable
later.
Cc: "Dmitry Vyukov" <dvyukov@google.com>
Cc: stable <stable@kernel.org>
Fixes: 6f23ee1fefdc ("USB: add binary API to usbmon")
Suggested-by: PaX Team <pageexec@freemail.hu> # for the VM_MAYRITE portion
Link: https://syzkaller.appspot.com/bug?id=2eb1f35d6525fa4a74d75b4244971e5b1411c95a
Reported-by: syzbot+23f57c5ae902429285d7@syzkaller.appspotmail.com
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Link: https://lore.kernel.org/r/20220919215957.205681-1-tadeusz.struk@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In anx7411_typec_switch_probe(), we should call of_get_child_by_name()
instead of of_find_node_by_name() as of_find_xxx API will decrease the
refcount of the 'from' argument.
Fixes: fe6d8a9c8e64 ("usb: typec: anx7411: Add Analogix PD ANX7411 support")
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220915092209.4009273-1-windhl@126.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
SPDX-License-Identifier have been added in commit 5fd54ace4721 ("USB: add
SPDX identifiers to all remaining files in drivers/usb/")
There is no point in keeping the now redundant license text.
Remove it.
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/030a7e187d707f8734a492cda7a6b54d459c4bb3.1662788747.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When opts->pnp_string is changed with configfs, new memory is allocated for
the string. It does not, however, update dev->pnp_string, even though the
memory is freed. When rquesting the string, the host then gets old or
corrupted data rather than the new string. The ieee 1284 id string should
be allowed to change while the device is connected.
The bug was introduced in commit fdc01cc286be ("usb: gadget: printer:
Remove pnp_string static buffer"), which changed opts->pnp_string from a
char[] to a char*.
This patch changes dev->pnp_string from a char* to a char** pointing to
opts->pnp_string.
Fixes: fdc01cc286be ("usb: gadget: printer: Remove pnp_string static buffer")
Signed-off-by: Albert Briscoe <albertsbriscoe@gmail.com>
Link: https://lore.kernel.org/r/20220911223753.20417-1-albertsbriscoe@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
xhci used to test if link power management (LPM) capable USB2 devices
really could enter and exit L1 state link state.
Failed devices were added to a lpm_failed_dev list.
This feature was removed 9 years ago in
commit de68bab4fa96 ("usb: Don't enable USB 2.0 Link PM by default.")
but lpm_failed_dev member was still left.
Remove it now.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220921123450.671459-7-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The u32 command was added to struct xhci_hcd over 10 years ago in
commit 9777e3ce907d ("USB: xHCI: bus power management implementation")
It wasn't even used back then, so remove it.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220921123450.671459-6-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Show the completion code of a unsuccessful "enable slot" command.
Add it in a human readable form to the existing error message.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220921123450.671459-5-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 8b328f8002bc ("xhci: re-initialize the HC during resume if HCE was
set") introduced a new warning message when the host controller error
was set and re-initializing.
This is expected behavior on some designs which already set
`xhci->broken_suspend` so the new warning is alarming to some users.
Modify the code to only show the warning if this was a surprising behavior
to the XHCI driver.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216470
Fixes: 8b328f8002bc ("xhci: re-initialize the HC during resume if HCE was set")
Reported-by: Artem S. Tashkinov <aros@gmx.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220921123450.671459-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If DbC is already in use, then the allocated memory for the xhci_dbc struct
doesn't get freed before returning NULL, which leads to a memleak.
Fixes: 534675942e90 ("xhci: dbc: refactor xhci_dbc_init()")
Cc: stable@vger.kernel.org
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220921123450.671459-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
xhci_alloc_stream_info() allocates stream context array for stream_info
->stream_ctx_array with xhci_alloc_stream_ctx(). When some error occurs,
stream_info->stream_ctx_array is not released, which will lead to a
memory leak.
We can fix it by releasing the stream_info->stream_ctx_array with
xhci_free_stream_ctx() on the error path to avoid the potential memory
leak.
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220921123450.671459-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here are the USB-serial updates for 6.1-rc1, including:
- a fix for a very long-standing FTDI SIO regression
- a long-overdue cleanup of the FTDI type handling
- support for new FTDI HP and HA devices
Included are also various clean ups.
All have been in linux-next with no reported issues.
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Merge tag 'usb-serial-6.1-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
"USB-serial updates for 6.1-rc1
Here are the USB-serial updates for 6.1-rc1, including:
- a fix for a very long-standing FTDI SIO regression
- a long-overdue cleanup of the FTDI type handling
- support for new FTDI HP and HA devices
Included are also various clean ups.
All have been in linux-next with no reported issues."
* tag 'usb-serial-6.1-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: ftdi_sio: clean up driver prefix
USB: serial: ftdi_sio: move driver structure
USB: serial: ftdi_sio: clean up attribute visibility logic
USB: serial: console: move mutex_unlock() before usb_serial_put()
USB: serial: ftdi_sio: convert to use dev_groups
USB: serial: ftdi_sio: add support for HP and HA devices
USB: serial: ftdi_sio: simplify divisor handling
USB: serial: ftdi_sio: assume hi-speed type
USB: serial: ftdi_sio: clean up baudrate request
USB: serial: ftdi_sio: clean up attribute handling
USB: serial: ftdi_sio: clean up modem-status handling
USB: serial: ftdi_sio: tighten device-type detection
USB: serial: ftdi_sio: rename channel index
USB: serial: ftdi_sio: include FT2232D in type string
USB: serial: ftdi_sio: rename chip types
USB: serial: ftdi_sio: drop redundant chip type comments
USB: serial: ftdi_sio: clean up chip type enum
USB: serial: ftdi_sio: fix 300 bps rate for SIO
Drop the "sio" infix from the few remaining definitions and symbol names
that still had it.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Move the definition of the USB serial driver structure to the end of the
file where it is used and drop the now redundant forward declarations.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Clean up the attribute visibility logic by defaulting to attributes
being visible and explicitly listing the exceptions.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
While in current version there is no use-after-free as USB serial
core holds another reference when the console is registered, we
should better unlock before dropping the reference in
usb_console_setup().
Fixes: 7bd032dc2793 ("USB serial: update the console driver")
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
The driver core supports the ability to handle the creation and removal
of device-specific sysfs files in a race-free manner.
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
[ johan: rebase on type rework, make groups static, clean up, amend
commit message ]
Signed-off-by: Johan Hovold <johan@kernel.org>
Add the product IDs for the USB-to-Serial devices FT2233HP, FT2232HP,
FT4233HP, FT4232HP, FT233HP, FT232HP, and FT4232HA.
Also include BCD values so that the chip type can be determined.
Signed-off-by: Amireddy mallikarjuna reddy <mallikarjuna.reddy@ftdichip.com>
Link: https://lore.kernel.org/r/ac28f2c5eba23a645b3b9299c224f2755a233eef.1658385786.git.mallikarjuna.reddy@ftdichip.com
[ johan: rebase on type-handling rework, drop "Q" from automotive type
name ]
Signed-off-by: Johan Hovold <johan@kernel.org>
In preparation for adding further Hi-Speed types, assume the device type
is Hi-Speed unless it's an explicitly listed legacy type when
determining divisors.
Signed-off-by: Johan Hovold <johan@kernel.org>
In preparation for adding further Hi-Speed types, assume a 120 MHz clock
and set the channel index by default and instead override these values
as needed for legacy types.
Signed-off-by: Johan Hovold <johan@kernel.org>
Multi-channel devices need to encode the channel selector in their
control requests and newer single-channel chip types use the same
request format.
Set the channel index also for these single-channel types so that the
index can be used to determine the baudrate request format instead of
listing types explicitly.
Note that FT232H and FTX accept either 0 or 1 as selector for their
single channel, presumably for backward compatibility reasons.
Signed-off-by: Johan Hovold <johan@kernel.org>
The driver exposes two attributes for all chip types but FT232A, which
doesn't have a configurable latency timer, and SIO, which (probably)
doesn't support the event-char mechanism either.
Explicitly test for the exceptions rather than list each and every
supported device type in the attribute helpers.
Signed-off-by: Johan Hovold <johan@kernel.org>
All chip types but the original SIO (FT8U100AX) return a two-byte modem
status and there's no need to explicitly list every other type in the
handler.
Signed-off-by: Johan Hovold <johan@kernel.org>
Clean up and tighten the device-type detection, which is based on
bcdDevice.
Don't make assumptions about unknown (future) types (currently assumed
to be either FT2232C or FT-X depending on bNumInterfaces) and instead
log an error and refuse to bind so that we can add proper support when
needed.
Note that the bcdDevice values have been provided by FTDI.
Signed-off-by: Johan Hovold <johan@kernel.org>
Multi-channel devices require a channel selector to be included in
control requests.
Replace "interface" with the less ambiguous "channel", which is the
terminology used for newer devices, in the corresponding defines and
variables.
Signed-off-by: Johan Hovold <johan@kernel.org>
Shorten the chip type enum and string representation for A, B and R chip
types so that they don't include the IC package type in the name.
Signed-off-by: Johan Hovold <johan@kernel.org>
Clean up the chip type enum by dropping the explicit values and moving
the definition to the implementation to make it easier to add further
types.
Signed-off-by: Johan Hovold <johan@kernel.org>
The 300 bps rate of SIO devices has been mapped to 9600 bps since
2003... Let's fix the regression.
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Smatch reports the following warning:
drivers/usb/misc/usb3503.c:267 usb3503_probe() warn: 'hub->clk'
from clk_prepare_enable() not released on lines: 240,246,252
Fix this by adding a flag to indicate if hub->clk is prepared or not
and invoke clk_disable_unprepare in the error handling.
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Link: https://lore.kernel.org/r/20220908055903.3550723-1-dzm91@hust.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch is changing the simple workqueue in the gadget driver to be
allocated as async_wq with a higher priority. The pump worker, that is
filling the usb requests, will have a higher priority and will not be
scheduled away so often while the video stream is handled. This will
lead to fewer streaming underruns.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Link: https://lore.kernel.org/r/20220907215818.2670097-1-m.grzeschik@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 6a108a14fa35 ("kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT")
introduces CONFIG_EXPERT to carry the previous intent of CONFIG_EMBEDDED
and just gives that intent a much better name. That has been clearly a good
and long overdue renaming, and it is clearly an improvement to the kernel
build configuration that has shown to help managing the kernel build
configuration in the last decade.
However, rather than bravely and radically just deleting CONFIG_EMBEDDED,
this commit gives CONFIG_EMBEDDED a new intended semantics, but keeps it
open for future contributors to implement that intended semantics:
A new CONFIG_EMBEDDED option is added that automatically selects
CONFIG_EXPERT when enabled and can be used in the future to isolate
options that should only be considered for embedded systems (RISC
architectures, SLOB, etc).
Since then, this CONFIG_EMBEDDED implicitly had two purposes:
- It can make even more options visible beyond what CONFIG_EXPERT makes
visible. In other words, it may introduce another level of enabling the
visibility of configuration options: always visible, visible with
CONFIG_EXPERT and visible with CONFIG_EMBEDDED.
- Set certain default values of some configurations differently,
following the assumption that configuring a kernel build for an
embedded system generally starts with a different set of default values
compared to kernel builds for all other kind of systems.
Considering the first purpose, at the point in time where CONFIG_EMBEDDED
was renamed to CONFIG_EXPERT, CONFIG_EXPERT already made 130 more options
become visible throughout all different menus for the kernel configuration.
Over the last decade, this has gradually increased, so that currently, with
CONFIG_EXPERT, roughly 170 more options become visible throughout all
different menus for the kernel configuration. In comparison, currently with
CONFIG_EMBEDDED enabled, just seven more options are visible, one in x86,
one in arm, and five for the ChipIdea Highspeed Dual Role Controller.
As the numbers suggest, these two levels of enabling the visibility of even
more configuration options---beyond what CONFIG_EXPERT enables---never
evolved to a good solution in the last decade. In other words, this
additional level of visibility of configuration option with CONFIG_EMBEDDED
compared to CONFIG_EXPERT has since its introduction never become really
valuable. It requires quite some investigation to actually understand what
is additionally visible and it does not differ significantly in complexity
compared to just enabling CONFIG_EXPERT. This CONFIG_EMBEDDED---or any
other config to show more detailed options beyond CONFIG_EXPERT---is
unlikely to be valuable unless somebody puts significant effort in
identifying how such visibility options can be properly split and creating
clear criteria, when some config option is visible with CONFIG_EXPERT and
when some config option is visible only with some further option enabled
beyond CONFIG_EXPERT, such as CONFIG_EMBEDDED attempted to do. For now, it
is much more reasonable to simply make those additional seven options that
visible with CONFIG_EMBEDDED, visible with CONFIG_EXPERT, and then remove
CONFIG_EMBEDDED. If anyone spends significant effort in structuring the
visibility of config options, they may re-introduce suitable new config
options simply as they see fit.
Make the configs for usb chipidea glue drivers visible when CONFIG_EXPERT
is enabled.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20220908104337.11940-5-lukas.bulwahn@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
During a cable disconnect sequence, if ep0state is not in the SETUP phase,
then nothing will trigger any pending end transfer commands. Force
stopping of any pending SETUP transaction, and move back to the SETUP
phase.
Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Link: https://lore.kernel.org/r/20220901193625.8727-6-quic_wcheng@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For endxfer commands that do not require an endpoint complete interrupt,
avoid having to wait for the command active bit to clear. This allows for
EP0 events to continue to be handled, which allows for the controller to
complete it. Otherwise, it is known that the endxfer command will fail if
there is a pending SETUP token that needs to be read.
Suggested-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Link: https://lore.kernel.org/r/20220901193625.8727-5-quic_wcheng@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
