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clk_prepare_enable() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The USB3.0 peripheral controller on R-Car SoCs has a dedicated DMAC.
The DMAC needs a "PRD table" in system memory and the DMAC can have
four PRD tables. This patch adds support for the DMAC.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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AVR32 is gone. Now it's time to clean up the driver by removing
leftovers that was used by AVR32 related code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This file will print out the name of the currently running USB Gadget
Driver. It can be read even when there are no functions loaded.
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Move the code which was part of pullup() to the newly introduced
method.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Sometimes, the gadget driver we want to run has max_speed lower than
what the UDC supports. In such situations, UDC might want to make sure
we don't try to connect on speeds not supported by the gadget
driver (e.g. super-speed capable dwc3 with high-speed capable g_midi)
because that will just fail.
In order to make sure this situation never happens, we introduce a new
optional ->udc_set_speed() method which can be implemented by
interested UDC drivers.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch adds platform driver support for Synopsys UDC.
A new driver file (snps_udc_plat.c) is created for this purpose
where the platform driver registration is done based on OF
node.
Currently, UDC integrated into Broadcom's iProc SoCs (Northstar2
and Cygnus) work with this driver.
New members are added to the UDC data structure for having platform
device support along with extcon and phy support.
Kconfig and Makefiles are modified to select platform driver for
compilation.
Signed-off-by: Raviteja Garimella <raviteja.garimella@broadcom.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Change the argument from NULL to a struct device for the
dma_pool_create call during dma init.
Signed-off-by: Raviteja Garimella <raviteja.garimella@broadcom.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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devices
This patch adds a struct device member to UDC data structure and
makes changes to the arguments of dev_err and dev_dbg calls so that
the debug prints work for both pci and platform devices.
Signed-off-by: Raviteja Garimella <raviteja.garimella@broadcom.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch renames the amd5536udc.c that has the core driver
functionality of Synopsys UDC to snps_udc_core.c
The symbols exported here can be used by any UDC driver that uses
the same Synopsys IP.
Signed-off-by: Raviteja Garimella <raviteja.garimella@broadcom.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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We want the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The PN_INT_ENA register should be used after usb3_pn_change() is called.
So, this patch moves the access from renesas_usb3_stop_controller() to
usb3_disable_pipe_n().
Fixes: 746bfe63bba3 ("usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This controller disallows to change the PIPE until reading/writing
a packet finishes. However. the previous code is not enough to hold
the lock in some functions. So, this patch fixes it.
Fixes: 746bfe63bba3 ("usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch fixes an issue that this driver is possible to cause
deadlock by double-spinclocked in renesas_usb3_stop_controller().
So, this patch removes spinlock API calling in renesas_usb3_stop().
(In other words, the previous code had a redundant lock.)
Fixes: 746bfe63bba3 ("usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch fixes an issue that this driver is possible to access
the registers before pm_runtime_get_sync() if a gadget driver is
installed first. After that, oops happens on R-Car Gen3 environment.
To avoid it, this patch changes the pm_runtime call timing from
probe/remove to udc_start/udc_stop.
Fixes: 746bfe63bba3 ("usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The assignment ret = ret is redundant and can be removed.
Reviewed-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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We want the USB fixes in here as well to handle testing and merge
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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"ep->udc->lock" and "udc->lock" are the same thing. It confuses Smatch
if we don't use the same name consistently.
Reviewed-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Add null check before dereferencing dev->regs pointer inside
net2280_led_shutdown() function.
Addresses-Coverity-ID: 101783
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Check that req->buf is a valid DMA capable address, produce a warning
and return an error if it's either coming from vmalloc space or is an on
stack buffer.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Flag the first and only port as removable while also leaving the
remaining bits (including the reserved bit zero) unset in accordance
with the specifications:
"Within a byte, if no port exists for a given location, the bit
field representing the port characteristics shall be 0."
Also add a comment marking the legacy PortPwrCtrlMask field.
Fixes: 1cd8fd2887e1 ("usb: gadget: dummy_hcd: add SuperSpeed support")
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: Tatyana Brokhman <tlinder@codeaurora.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: changes for v4.12
With 51 non-merge commits, this is one of the smallest USB Gadget pull
requests. Apart from your expected set of non-critical fixes, and
other miscellaneous items, we have most of the changes in dwc3 (52.5%)
with all other UDCs following with 34.8%.
As for the actual changes, the most important of them are all the
recent changes to reduce memory footprint of dwc3, bare minimum
dual-role support on dwc3 and reworked endpoint count and
initialization routines.
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Update Kconfig help for fifo_mode = 0 to explain the behavior better.
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Use dev_err() to display EP configuration error to avoid silent failure.
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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allow usb_del_gadget_udc() and usb add_gadget_udc() to be called
repeatedly on the same gadget->dev structure.
We need to clear the gadget->dev structure so that kobject_init()
doesn't complain about already initialized object.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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There are several inconsistencies in the error handling code.
1. If clk_get() fails, it goes to clk_put().
2. If pdata->phy_init() fails, it does not disable u3d->clk.
3. In case of failure after stopping u3d, it does pdata->phy_deinit()
and clk_disable(u3d->clk) twice.
4. It ignores failures in clk_enable().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Check fifo configuration values against device tree values for endpoint fifo
in auto configuration mode (fifo_mode=0).
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Currently the of glue code in fsl-mph-dr-of will create the platform
device fsl-usb2-udc. As this driver should also be probed by this name,
this patch adds it to the devtypes list.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch splits the amd5536udc driver into two -- one that does
pci device registration and the other file that does the rest of
the driver tasks like the gadget/ep ops etc for Synopsys UDC.
This way of splitting helps in exporting core driver symbols which
can be used by any other platform/pci driver that is written for
the same Synopsys USB device controller.
The current patch also includes a change in the Kconfig and Makefile.
A new config option USB_SNP_CORE will be selected automatically when
any one of the platform or pci driver for the same UDC is selected.
Main changes:
- amd5536udc_pci.c: PCI device registration is moved to this file.
- amd5536udc.c:
This file does rest of the core UDC fucntionality.
9 symbols are exported so as to be used by amd5536udc_pci.c.
Module parameter definitions are moved to header file.
- amd5536udc.h:
Function declarations, module parameters definitions and few common
header file includes are added to this file
- Kconfig:
New USB_SNP_CORE option is added which will be auto selected when
any pci or platform driver config option for the UDC is chosen.
- Makefile:
Compiles the core and pci files separately.
Signed-off-by: Raviteja Garimella <raviteja.garimella@broadcom.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch adds support for usb role swap via sysfs "role".
For example:
1) Connect a usb cable using 2 Salvator-X boards.
- For A-Device, the cable is connected to CN11 (USB3.0 ch0).
- For B-Device, the cable is connected to CN9 (USB2.0 ch0).
2) On A-Device, you input the following command:
# echo peripheral > /sys/devices/platform/soc/ee020000.usb/role
3) On B-Device, you input the following command:
# echo host > /sys/devices/platform/soc/ee080200.usb-phy/role
Then, the A-Device acts as a peripheral and the B-Device acts as
a host. Please note that A-Device must input the following command
if you want the board to act as a host again.
# echo host > /sys/devices/platform/soc/ee020000.usb/role
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Minor code cleanup based on feedback received on mailinglist.
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch adds extcon support to see VBUS/ID signal states.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This usb 3.0 peripheral controller has a register (USB_OTG_STA) to monitor
the USB ID signal. So, this patch adds the ID signal monitoring to change
the mode to host (A-Host) or peripheral (B-Peripheral).
This patch also removes hardcoded setting as B-Peripheral mode.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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dummy_hub_control()
This fixes the commit: 1cd8fd2887e1 ("usb: gadget: dummy_hcd: add
SuperSpeed support").
In the case of ClearPortFeature and USB_PORT_FEAT_POWER, simply clear
the right bit regardless of what the wValue is.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Yuyang Du <yuyang.du@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Remove unnecessary variable and update function prototype.
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Rewrite udc_free_dma_chain() function to avoid use of pointer after free.
Addresses-Coverity-ID: 1091172
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Functions udc_enable() and udc_disable() have a duplicated prototype.
Remove it.
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Petr Cvek <petr.cvek@tul.cz>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Rearrange statements in mv_ep_enable function so that it’s obvious
what the switch does and how zlt, ios and mult variables are
initialised. Most notably, this gets rid of an implicit fall-through
so people don’t have to wonder whether it was intenional or not.
Addresses-Coverity-ID: 201385
Reported-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Remove pointer dereference after free.
Addresses-Coverity-ID: 1091173
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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a lot of embeded system SOC (e.g. freescale T2080) have both
PCI and USB modules. But USB module is controlled by registers directly,
it have no relationship with PCI module.
when say N here it will not build PCI related code in USB driver.
Signed-off-by: yuan linyu <Linyu.Yuan@alcatel-sbell.com.cn>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The PCI pool API is deprecated. This commit replaces the PCI pool old
API by the appropriate function with the DMA pool API.
Signed-off-by: Romain Perier <romain.perier@collabora.com>
Acked-by: Peter Senna Tschudin <peter.senna@collabora.com>
Tested-by: Peter Senna Tschudin <peter.senna@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The PCI pool API is deprecated. This commit replaces the PCI pool old
API by the appropriate function with the DMA pool API.
Signed-off-by: Romain Perier <romain.perier@collabora.com>
Reviewed-by: Peter Senna Tschudin <peter.senna@collabora.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The PCI pool API is deprecated. This commit replaces the PCI pool old
API by the appropriate function with the DMA pool API.
Signed-off-by: Romain Perier <romain.perier@collabora.com>
Acked-by: Peter Senna Tschudin <peter.senna@collabora.com>
Tested-by: Peter Senna Tschudin <peter.senna@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In the function scan_dma_completions() there is a reusage of tmp
variable. That coused a wrong value being used in some case when
reading a short packet terminated transaction from an endpoint,
in 2 concecutive reads.
This was my logic for the patch:
The req->td->dmadesc equals to 0 iff:
-- There was a transaction ending with a short packet, and
-- The read() to read it was shorter than the transaction length, and
-- The read() to complete it is longer than the residue.
I believe this is true from the printouts of various cases,
but I can't be positive it is correct.
Entering this if, there should be no more data in the endpoint
(a short packet terminated the transaction).
If there is, the transaction wasn't really done and we should exit and
wait for it to finish entirely. That is the inner if.
That inner if should never happen, but it is there to be on the safe
side. That is why it is marked with the comment /* paranoia */.
The size of the data available in the endpoint is ep->dma->dmacount
and it is read to tmp.
This entire clause is based on my own educated guesses.
If we passed that inner if without breaking in the original code,
than tmp & DMA_BYTE_MASK_COUNT== 0.
That means we will always pass dma bytes count of 0 to dma_done(),
meaning all the requested bytes were read.
dma_done() reports back to the upper layer that the request (read())
was done and how many bytes were read.
In the original code that would always be the request size,
regardless of the actual size of the data.
That did not make sense to me at all.
However, the original value of tmp is req->td->dmacount,
which is the dmacount value when the request's dma transaction was
finished. And that is a much more reasonable value to report back to
the caller.
To recreate the problem:
Read from a bulk out endpoint in a loop, 1024 * n bytes in each
iteration.
Connect the PLX to a host you can control.
Send to that endpoint 1024 * n + x bytes,
such that 0 < x < 1024 * n and (x % 1024) != 0
You would expect the first read() to return 1024 * n
and the second read() to return x.
But you will get the first read to return 1024 * n
and the second one to return 1024 * n.
That is true for every positive integer n.
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Raz Manor <Raz.Manor@valens.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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A call usb_put_phy(udc->transceiver) must be tested for a valid pointer.
Use an already existing test for usb_unregister_notifier call.
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Reported-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Petr Cvek <petr.cvek@tul.cz>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The debug output now contains the wrong variable, as seen from the compiler
warning:
drivers/usb/gadget/udc/atmel_usba_udc.c: In function 'usba_ep_enable':
drivers/usb/gadget/udc/atmel_usba_udc.c:632:550: error: 'ept_cfg' may be used uninitialized in this function [-Werror=maybe-uninitialized]
DBG(DBG_ERR, "%s: EPT_CFG = 0x%lx (maxpacket = %lu)\n",
This changes the debug output the same way as the other code.
Fixes: 741d2558bf0a ("usb: gadget: udc: atmel: Update endpoint allocation scheme")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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When the user does device unbind and rebind test, the kernel will
show below dump due to usb_gadget memory region is dirty after unbind.
Clear usb_gadget region for every new probe.
root@imx6qdlsolo:/sys/bus/platform/drivers/dummy_udc# echo dummy_udc.0 > bind
[ 102.523312] kobject (eddd78b0): tried to init an initialized object, something is seriously wrong.
[ 102.532447] CPU: 0 PID: 734 Comm: sh Not tainted 4.10.0-rc7-00872-g1b2b8e9 #1298
[ 102.539866] Hardware name: Freescale i.MX6 SoloX (Device Tree)
[ 102.545717] Backtrace:
[ 102.548225] [<c010d090>] (dump_backtrace) from [<c010d338>] (show_stack+0x18/0x1c)
[ 102.555822] r7:ede34000 r6:60010013 r5:00000000 r4:c0f29418
[ 102.561512] [<c010d320>] (show_stack) from [<c040c2a4>] (dump_stack+0xb4/0xe8)
[ 102.568764] [<c040c1f0>] (dump_stack) from [<c040e6d4>] (kobject_init+0x80/0x9c)
[ 102.576187] r10:0000001f r9:eddd7000 r8:eeaf8c10 r7:eddd78a8 r6:c177891c r5:c0f3b060
[ 102.584036] r4:eddd78b0 r3:00000000
[ 102.587641] [<c040e654>] (kobject_init) from [<c05359a4>] (device_initialize+0x28/0xf8)
[ 102.595665] r5:eebc4800 r4:eddd78a8
[ 102.599268] [<c053597c>] (device_initialize) from [<c05382ac>] (device_register+0x14/0x20)
[ 102.607556] r7:eddd78a8 r6:00000000 r5:eebc4800 r4:eddd78a8
[ 102.613256] [<c0538298>] (device_register) from [<c0668ef4>] (usb_add_gadget_udc_release+0x8c/0x1ec)
[ 102.622410] r5:eebc4800 r4:eddd7860
[ 102.626015] [<c0668e68>] (usb_add_gadget_udc_release) from [<c0669068>] (usb_add_gadget_udc+0x14/0x18)
[ 102.635351] r10:0000001f r9:eddd7000 r8:eddd788c r7:bf003770 r6:eddd77f8 r5:eddd7818
[ 102.643198] r4:eddd785c r3:eddd7b24
[ 102.646834] [<c0669054>] (usb_add_gadget_udc) from [<bf003428>] (dummy_udc_probe+0x170/0x1c4 [dummy_hcd])
[ 102.656458] [<bf0032b8>] (dummy_udc_probe [dummy_hcd]) from [<c053d114>] (platform_drv_probe+0x54/0xb8)
[ 102.665881] r10:00000008 r9:c1778960 r8:bf004128 r7:fffffdfb r6:bf004128 r5:eeaf8c10
[ 102.673727] r4:eeaf8c10
[ 102.676293] [<c053d0c0>] (platform_drv_probe) from [<c053b160>] (driver_probe_device+0x264/0x474)
[ 102.685186] r7:00000000 r6:00000000 r5:c1778960 r4:eeaf8c10
[ 102.690876] [<c053aefc>] (driver_probe_device) from [<c05397c4>] (bind_store+0xb8/0x14c)
[ 102.698994] r10:eeb3bb4c r9:ede34000 r8:0000000c r7:eeaf8c44 r6:bf004128 r5:c0f3b668
[ 102.706840] r4:eeaf8c10
[ 102.709402] [<c053970c>] (bind_store) from [<c0538ca8>] (drv_attr_store+0x28/0x34)
[ 102.716998] r9:ede34000 r8:00000000 r7:ee3863c0 r6:ee3863c0 r5:c0538c80 r4:c053970c
[ 102.724776] [<c0538c80>] (drv_attr_store) from [<c029c930>] (sysfs_kf_write+0x50/0x54)
[ 102.732711] r5:c0538c80 r4:0000000c
[ 102.736313] [<c029c8e0>] (sysfs_kf_write) from [<c029be84>] (kernfs_fop_write+0x100/0x214)
[ 102.744599] r7:ee3863c0 r6:eeb3bb40 r5:00000000 r4:00000000
[ 102.750287] [<c029bd84>] (kernfs_fop_write) from [<c0222dd8>] (__vfs_write+0x34/0x120)
[ 102.758231] r10:00000000 r9:ede34000 r8:c0108bc4 r7:0000000c r6:ede35f80 r5:c029bd84
[ 102.766077] r4:ee223780
[ 102.768638] [<c0222da4>] (__vfs_write) from [<c0224678>] (vfs_write+0xa8/0x170)
[ 102.775974] r9:ede34000 r8:c0108bc4 r7:ede35f80 r6:01861cb0 r5:ee223780 r4:0000000c
[ 102.783743] [<c02245d0>] (vfs_write) from [<c0225498>] (SyS_write+0x4c/0xa8)
[ 102.790818] r9:ede34000 r8:c0108bc4 r7:0000000c r6:01861cb0 r5:ee223780 r4:ee223780
[ 102.798595] [<c022544c>] (SyS_write) from [<c0108a20>] (ret_fast_syscall+0x0/0x1c)
[ 102.806188] r7:00000004 r6:b6e83d58 r5:01861cb0 r4:0000000c
Fixes: 90fccb529d24 ("usb: gadget: Gadget directory cleanup - group UDC drivers")
Cc: stable <stable@vger.kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Tested-by: Xiaolong Ye <xiaolong.ye@intel.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Fix typos and add the following to the scripts/spelling.txt:
followings||following
While we are here, add a missing colon in the boilerplate in DT binding
documents. The "you SoC" in allwinner,sunxi-pinctrl.txt was fixed as
well.
I reworded "as the followings:" to "as follows:" for
drivers/usb/gadget/udc/renesas_usb3.c.
Link: http://lkml.kernel.org/r/1481573103-11329-32-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix typos and add the following to the scripts/spelling.txt:
intialization||initialization
The "inintialization" in drivers/acpi/spcr.c is a different pattern but
I fixed it as well in this commit.
Link: http://lkml.kernel.org/r/1481573103-11329-16-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
USB: changes for v4.11
Here's the big pull request for the Gadget
API. Again the majority of changes sit in dwc2
driver. Most important changes contain a workaround
for GOTGCTL being wrong, a sleep-inside-spinlock fix
and the big series of cleanups on dwc2.
One important thing on dwc3 is that we don't anymore
need gadget drivers to cope with unaligned OUT
transfers for us. We have support for appending one
extra chained TRB to align transfer ourselves.
Apart from these, the usual set of typos,
non-critical fixes, etc.
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