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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring:
- fix sparse warnings in drivers/of/
- add more overlay unittests
- update dtc to v1.4.4-8-g756ffc4f52f6. This adds more checks on dts
files such as unit-address formatting and stricter character sets for
node and property names
- add a common DT modalias function
- move trivial-devices.txt up and out of i2c dir
- ARM NVIC interrupt controller binding
- vendor prefixes for Sensirion, Dioo, Nordic, ROHM
- correct some binding file locations
* tag 'devicetree-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (24 commits)
of: fix sparse warnings in fdt, irq, reserved mem, and resolver code
of: fix sparse warning in of_pci_range_parser_one
of: fix sparse warnings in of_find_next_cache_node
of/unittest: Missing unlocks on error
of: fix uninitialized variable warning for overlay test
of: fix unittest build without CONFIG_OF_OVERLAY
of: Add unit tests for applying overlays
of: per-file dtc compiler flags
fpga: region: add missing DT documentation for config complete timeout
of: Add vendor prefix for ROHM Semiconductor
of: fix "/cpus" reference leak in of_numa_parse_cpu_nodes()
of: Add vendor prefix for Nordic Semiconductor
dt-bindings: arm,nvic: Binding for ARM NVIC interrupt controller on Cortex-M
dtc: update warning settings for new bus and node/property name checks
scripts/dtc: Update to upstream version v1.4.4-8-g756ffc4f52f6
scripts/dtc: automate getting dtc version and log in update script
of: Add function for generating a DT modalias with a newline
of: fix of_device_get_modalias returned length when truncating buffers
Documentation: devicetree: move trivial-devices out of I2C realm
dt-bindings: add vendor prefix for Dioo
..
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The modalias sysfs attr is lacking a newline for DT aliases on platform
devices. The macio and ibmebus correctly add the newline, but open code it.
Introduce a new function, of_device_modalias(), that fills the buffer with
the modalias including the newline and update users of the old
of_device_get_modalias function.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: linuxppc-dev@lists.ozlabs.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB updates from Greg KH:
"Here is the big USB patchset for 4.12-rc1.
Lots of good stuff here, after many many many attempts, the kernel
finally has a working typeC interface, many thanks to Heikki and
Guenter and others who have taken the time to get this merged. It
wasn't an easy path for them at all.
There's also a staging driver that uses this new api, which is why
it's coming in through this tree.
Along with that, there's the usual huge number of changes for gadget
drivers, xhci, and other stuff. Johan also finally refactored pretty
much every driver that was looking at USB endpoints to do it in a
common way, which will help prevent any "badly-formed" devices from
causing problems in drivers. That too wasn't a simple task.
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (263 commits)
staging: typec: Fairchild FUSB302 Type-c chip driver
staging: typec: Type-C Port Controller Interface driver (tcpci)
staging: typec: USB Type-C Port Manager (tcpm)
usb: host: xhci: remove #ifdef around PM functions
usb: musb: don't mark of_dev_auxdata as initdata
usb: misc: legousbtower: Fix buffers on stack
USB: Revert "cdc-wdm: fix "out-of-sync" due to missing notifications"
usb: Make sure usb/phy/of gets built-in
USB: storage: e-mail update in drivers/usb/storage/unusual_devs.h
usb: host: xhci: print correct command ring address
usb: host: xhci: delete sp_dma_buffers for scratchpad
usb: host: xhci: using correct specification chapter reference for DCBAAP
xhci: switch to pci_alloc_irq_vectors
usb: host: xhci-plat: set resume_quirk() for R-Car controllers
usb: host: xhci-plat: add resume_quirk()
usb: host: xhci-plat: enable clk in resume timing
usb: host: plat: Enable xHCI plat runtime PM
USB: serial: ftdi_sio: add device ID for Microsemi/Arrow SF2PLUS Dev Kit
USB: serial: constify static arrays
usb: fix some references for /proc/bus/usb
...
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The #ifdef is slightly wrong as it doesn't cover the xhci_priv_resume_quirk()
function, causing a harmless warning:
drivers/usb/host/xhci-plat.c:58:12: error: 'xhci_priv_resume_quirk' defined but not used [-Werror=unused-function]
static int xhci_priv_resume_quirk(struct usb_hcd *hcd)
A simpler way to do this correctly is to use __maybe_unused annotations
that let the compiler silently drop the functions when there is no
reference.
Fixes: b0c69b4bace3 ("usb: host: plat: Enable xHCI plat runtime PM")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The probe function is not __init since it can be called for deferred
probing or when unbinding/rebinding the device, and therefore it must
not reference objects in __initdata, as pointed out by this link
time warning:
WARNING: drivers/usb/musb/da8xx.o(.text+0x9d4): Section mismatch in reference from the function da8xx_probe() to the (unknown reference) .init.data:(unknown)
This removes the annotation.
Reported-by: Olof's autobuilder <olof@lixom.net>
Fixes: d6299b6efbf6 ("usb: musb: Add support of CPPI 4.1 DMA controller to DA8xx")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Allocate buffers on HEAP instead of STACK for local structures
that are to be received using usb_control_msg().
Signed-off-by: Maksim Salau <maksim.salau@gmail.com>
Tested-by: Alfredo Rafael Vicente Boix <alviboi@gmail.com>;
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit 833415a3e781 ("cdc-wdm: fix "out-of-sync" due to
missing notifications")
There have been several reports of wdm_read returning unexpected EIO
errors with QMI devices using the qmi_wwan driver. The reporters
confirm that reverting prevents these errors. I have been unable to
reproduce the bug myself, and have no explanation to offer either. But
reverting is the safe choice here, given that the commit was an
attempt to work around a firmware problem. Living with a firmware
problem is still better than adding driver bugs.
Reported-by: Kasper Holtze <kasper@holtze.dk>
Reported-by: Aleksander Morgado <aleksander@aleksander.es>
Reported-by: Daniele Palmas <dnlplm@gmail.com>
Cc: <stable@vger.kernel.org> # v4.9+
Fixes: 833415a3e781 ("cdc-wdm: fix "out-of-sync" due to missing notifications")
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Updates the e-mail address of Phillip Potter, updater of the Nokia 6288
entry in drivers/usb/storage/unusual_devs.h
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB-serial updates for v4.12-rc1
Here are the USB-serial updates for 4.12, including:
- support for devices with up to 16 ports (e.g. some Moxa devices)
- support for endpoint sanity checks in core, which allows for code sharing
and avoids allocating resources for rejected interfaces
- support for endpoint-port remapping, which allows some driver hacks to
be removed as well as omninet to use the generic write implementation
- removal of an obsolete tty open-race workaround which prevented a
port from being opened immediately after having been registered
- generic-driver support for interfaces with just a bulk-in endpoint
- improved ftdi_sio event-char and latency-timer handling
- improved ftdi_sio support for some broken BM chips
Included are also various clean ups and a new ftdi_sio device id.
All have been in linux-next with no reported issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
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This development kit has an FT4232 on it with a custom USB VID/PID.
The FT4232 provides four UARTs, but only two are used. The UART 0
is used by the FlashPro5 programmer and UART 2 is connected to the
SmartFusion2 CortexM3 SoC UART port.
Note that the USB VID is registered to Actel according to Linux USB
VID database, but that was acquired by Microsemi.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
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Declare three immutable static driver arrays as const.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Drop redundant calls to tty_buffer_request_room and use the more
efficient tty_insert_flip_char when inserting single characters.
Signed-off-by: Johan Hovold <johan@kernel.org>
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The transfer buffers and URBs are allocated and initialised by USB
serial core during probe, and there's no need to check for NULL transfer
buffers in the bulk-in completion handlers.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Commit a65a6f14dc24 ("USB: serial: fix race between probe and open")
fixed a race between probe and open, which could lead to crashes when a
not yet fully initialised port was being opened.
This race was later incidentally closed by commit 7e73eca6a7b2 ("TTY:
move cdev_add to tty_register_device") which moved character-device
registration from tty_register_driver to tty_register_device, which
isn't called until the port has been fully set up.
Remove the now redundant workaround which had the negative side effect
of not allowing a port to be opened immediately after user space had
been notified of a new tty device.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
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Drop some unnecessary termios-flag debugging that have been faithfully
reproduced in a few old drivers, including the "clfag" typo and all.
This also addresses a compiler warning on sparc where tcflag_t is
unsigned long and would have required an explicit cast.
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
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Setup each port to use the first bulk-out endpoint in calc_num_ports so
that core allocates the corresponding port resources for us.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Clean up calc_num_ports with respect to handling older chips that lack
config data.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Setup each port to use the first bulk-out endpoint in calc_num_ports so
that core allocates the corresponding port resources for us.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Add an explicit sanity check to make sure we have the expected
endpoints. This will provide a descriptive error message in case an
expected endpoint is missing when probing.
Note that the driver already gracefully fails to probe (albeit with a
less descriptive error message) if a bulk-in endpoint is missing, and an
attempt to write to a port whose device lack a bulk-out endpoint would
fail with -ENODEV.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Print a message and register two ports for interfaces for which we do
not know how many ports there are instead of binding, allocating
resources, but not register any ports.
This provides a hint that anyone adding a dynamic device id must also
provide a reference id (driver info) from which the port count can be
retrieved, for example:
echo <vid> <pid> 0 0x110A 0x1410 > new_id
Signed-off-by: Johan Hovold <johan@kernel.org>
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Use the new endpoint-remap functionality to configure the ports for
treo devices instead of poking around in the port structures after the
ports have been setup.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Use the new endpoint-remap functionality to configure the ports for
clie_5 devices.
Note that the same bulk-out endpoint is being used for both ports.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Drop the redundant calc_num_ports callback from the clie_5 type, for
which the callback always returns zero and hence falls back to the type
num_ports value (2).
Signed-off-by: Johan Hovold <johan@kernel.org>
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These devices always require at least one bulk-out endpoint so let core
verify that.
This avoids attempting to send bulk data to the default pipe when
downloading firmware in boot mode.
Note that further endpoints are still needed when not in boot mode.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Now that the endpoint-port mapping has been properly set up during
probe, we can switch to using the more efficient generic write
implementation.
Note that this currently means that chars_in_buffer now overcounts
slightly as we always write a full endpoint-sized packet.
Also add a copyright entry.
Signed-off-by: Johan Hovold <johan@kernel.org>
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These devices use the second bulk-out endpoint for writing. Instead of
using the resources of the second port structure setup by core, use the
new endpoint-remap functionality to simply ignore the first bulk-out
endpoint. This specifically avoids allocating resources for the unused
endpoint.
Note that the disconnect callback was always redundant as all URBs would
have been killed by USB core on disconnect.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Clean up the endpoint sanity check by letting core verify the single
interrupt endpoint, and verifying the bulk endpoints in calc_num_ports
after having determined the number of ports.
Note that the static type num_ports field was neither correct or used
(since calc_num_ports never returns zero).
Signed-off-by: Johan Hovold <johan@kernel.org>
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This driver have treated the interrupt endpoint as optional despite it
always being present (according to the datasheet). Let's consider it
mandatory instead.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Clean up the mcs7715 port setup by using the new endpoint-remap
functionality provided by core. Instead of poking around in internal
port-structure fields, simply swap the endpoint descriptors of the two
ports in calc_num_ports before the port structures are even allocated.
Note that we still need to override the default interrupt completion
handler.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Drop the redundant read-urb check from open. The presence of a bulk-in
endpoint is now verified during probe and core has allocated the
corresponding resources.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Verify that the required interrupt endpoint is present at probe rather
than at open to avoid allocating resources for an unusable device.
Note that the endpoint is only required when in download mode.
Signed-off-by: Johan Hovold <johan@kernel.org>
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These devices always require at least one bulk-out endpoint so let core
verify that.
This avoids attempting to send bulk data to the default pipe when
downloading firmware in boot mode.
Note that further endpoints are still needed when not in boot mode.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Use the calc_num_ports rather than attach callback to verify that the
required endpoints are present when in download mode.
This avoids allocating port resources for interfaces that won't be bound.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Use the calc_num_ports callback to ignore unused endpoints.
The driver binds to any interface with at least one bulk-in and one
bulk-out endpoint, but some devices can have three or more endpoints of
which only either the first or second pair of endpoints is needed.
This avoids allocating resources for unused endpoints, and specifically
a port is no longer registered for the unused first endpoint pair when
there are more than three endpoints.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Use the calc_num_ports rather than attach callback to determine which
interface to bind to in order to avoid allocating port-resources for
interfaces that won't be bound.
Signed-off-by: Johan Hovold <johan@kernel.org>
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We can now abort probe early after an error in calc_num_ports by
returning an errno instead of attempting to continue probing but not
register any ports.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Simplify the endpoint sanity check by letting core verify that the
required endpoints are present and moving the max-packet check to
calc_num_ports.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Use the calc_num_ports rather than probe callback to determine which
interface to bind to.
This allows us to remove some duplicate code.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Implement the "horrible endpoint hack" for some legacy devices as a
quirk and clean up the code somewhat.
Note that the bulk-endpoint check can be removed as core will already
have verified this.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Some pl2303 devices require the use of the interrupt endpoint of an
unrelated interface. This has so far been dealt with in usb-serial core,
but can now be moved to a driver calc_num_ports callback.
Note that we relax the endpoint requirements checked by core and instead
verify that we have an interrupt-in endpoint in calc_num_ports for all
devices so that the hack can first be applied.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Relax the generic driver bulk-endpoint requirement. The driver handles
devices without bulk-out endpoints just fine these days.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Add a calc_num_ports callback to the generic driver and verify that the
device has the required endpoints there instead of in core.
Note that the generic driver num_ports field was never used.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Add a probe callback to the generic driver and print the
only-for-testing message there.
This is a first step in getting rid of the CONFIG_USB_SERIAL_GENERIC
ifdef from usb-serial core.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Allow subdrivers to modify the port-endpoint mapping by passing the
endpoint descriptors to calc_num_ports.
The callback can now also be used to verify that the required endpoints
exists and abort probing otherwise.
This will allow us to get rid of a few hacks in subdrivers that are
already modifying the port-endpoint mapping (or aborting probe due to
missing endpoints), but only after the port structures have been setup.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Simplify the endpoint sanity check by letting core verify that the
required endpoints are present.
Note that the driver registers four ports but uses five bulk-endpoint
pairs.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Simplify the endpoint sanity check by letting core verify that the
required endpoints are present.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Simplify the endpoint sanity check by letting core verify that the
required endpoints are present.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Simplify the endpoint sanity check by letting core verify that the
required endpoints are present.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Simplify the endpoint sanity check by letting core verify that the
required endpoints are present.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Simplify the endpoint sanity check by letting core verify that the
required endpoints are present.
Signed-off-by: Johan Hovold <johan@kernel.org>
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