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>
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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Merge tag 'usb-serial-4.12-rc1' of 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>
We already have sp_array to store each scratch buffer address for xHC,
it doesn't need another sp_dma_buffers array to store it.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the modern API to request MSI or MSI-X interrupts, which allows us to
get rid of the msix_entries array, as well as cleaning up the cleanup
code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch sets resume_quirk() for R-Car controllers to re-download
the firmware in resume timing. Otherwise, if the controller's power
is down in suspend timing, the firmware in the controller goes away,
and then the controller doesn't work after resume.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds resume_quirk() to do platform specific process in
resume timing.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch enables the clk in resume timing when device_may_wakeup()
is false. Otherwise, kernel panic happens when R-Car resumes the system
from Suspend-to-RAM because the clk is disabled.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Enable the xHCI plat runtime PM for parent device to suspend/resume
xHCI. Also call pm_runtime_forbid() in probe() function to force users
to explicitly enable runtime pm using power/control in sysfs, in case
some parent devices didn't implement runtime PM callbacks.
[set do_wakeup to true when runtime suspending -Mathias]
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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>
Since when we got rid of usbfs, the /proc/bus/usb is now
elsewhere. Fix references for it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Add sysfs entry for role switch
- Update gadget state after gadget back from suspend
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Merge tag 'usb-ci-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next
Peter writes:
Two changes for this v4.12-rc1:
- Add sysfs entry for role switch
- Update gadget state after gadget back from suspend
The DMA may hang up if a teardown is initiated while an endpoint is still
active (Advisory 2.3.27 of DA8xx errata).
To workaround this issue, add a delay before to initiate the teardown.
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently, only the PIO mode is supported.
This add support of CPPI 4.1 to DA8xx.
As in DA8xx the CPPI 4.1 DMA is a part of the USBSS, create the CPPI 4.1
device as a child of USB.
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
[b-liu@ti.com: minor tweak in the commit log]
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In the DA8xx, USB and CPPI 4.1 are sharing the same interrupt line.
Update the driver to request a shared irq.
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
DIV_ROUND_UP is bit useful than series of "/" and "%" operations.
Replace "/%" sequence with DIV_ROUND_UP macro.
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit a6ff6cbf1f ("usb: xhci: Add helper function xhci_set_power_on().")
created a helper to control port power that needs to be called with
xhci->lock held and interrupts disabled.
It released the lock with spin_unlock_irqrestore using a new zero flag
variable instead of the original flag from spin_lock_irqsave.
This regression triggered a static checker warning about bogus flags, and
a null pointer dereference on armada-385.
Fix it by passing a pointer to the correct flags and using it instead
Fixes: a6ff6cbf1f ("usb: xhci: Add helper function xhci_set_power_on().")
Cc: Guoqing Zhang <guoqing.zhang@intel.com>
Reported-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
Tested-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sometimes, the user needs to adjust some properties for controllers, eg
the role for controller, we add sysfs group for them.
The attribute 'role' is used to switch host/gadget role dynamically, the
uewr can read the current role, and write the other role compare to
current one to finish the switch.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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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Merge tag 'usb-for-v4.12' of 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.
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>
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>
If dr_mode is "otg" then support dual role mode of operation.
Currently this mode is only supported when an extcon handle is
present in the dwc3 device tree node. This is needed to
get the ID status events of the port.
We're using a workqueue to manage the dual-role state transitions
as the extcon notifier (dwc3_drd_notifier) is called in an atomic
context by extcon_sync() and this doesn't go well with
usb_del_gadget_udc() causing a lockdep and softirq warning.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
We can't have both Host and Peripheral roles active at the same time
because of one detail on DWC3: it shares the same memory area for both
Host and Peripheral registers.
When swapping roles we must reinitialize the new role every
time. Let's make sure this works for our debugfs interface.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Each role is mutually exclusive, the | operator is unnecessary. Remove
it.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
We're going to use this member to track which role we're currently
playing, that way we can more easily implement dual-role swap in
upcoming patches.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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>
It's much simpler to just add one extra TRB chained to previous TRB to
handle ZLP. This helps us reduce pointless allocations and simplifies
the code a little bit.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Just like we did for all other endpoint types, let's rely on a chained
TRB pointing to ep0_bounce_addr in order to align transfer size. This
will make the code simpler.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Instead of constantly recomputing how dwc and epnum relate to dep,
just pass dep as argument.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
If we pass TRB's own address on bpl/bph fields, we can get our SETUP
packet as immediate data on the TRB itself, without having to allocate
extra memory for it.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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>
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>
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>
In order to improve usability a tiny bit, we will return strings that
match what our tracepoints return.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
When writing, we expect the "otg" string. When showing, we return
"OTG". Let's downcase that word to avoid confusion.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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>
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>
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>
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>
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>
If usb/otg-fsm.h and usb/composite.h are included together
then it results in the build warning [1].
Prevent that by defining VDBG locally.
Also get rid of MPC_LOC which doesn't seem to be used
by anyone.
[1] - warning fixed by this patch:
In file included from drivers/usb/dwc3/core.h:33,
from drivers/usb/dwc3/ep0.c:33:
include/linux/usb/otg-fsm.h:30:1: warning: "VDBG" redefined
In file included from drivers/usb/dwc3/ep0.c:31:
include/linux/usb/composite.h:615:1: warning: this is the location
of the previous definition
Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Jun Li <jun.li@nxp.com>
Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
To avoid checkpatch warnings with new patches let's
start using the BIT() macro wherever possible.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Currently ffs_dev::name can be either allocated by the client of
the ffs_dev structure or by the f_fs.c core itself. The former
is used by g_ffs while the latter happens with configfs.
Historically, g_ffs did not need to allocate separate buffer for
the name so what is now f_fs.c core never cared about freeing
that space. With configfs the name needs to be copied since the
memory is not guaranteed to be availeble after ffs_set_inst_name
finishes.
The complication is therefore here to avoid allocations in the
g_ffs case but it complicates the code inproportinally to
benefits it provides. In particular, g_ffs is considered
‘legacy’ so optimising for its sake is unlikely to be worth the
effort.
With that observation in mind, simplify the code by unifying the
code paths in g_ffs and configfs paths. Furthermore, instead of
allocating a new buffer for the name, simply embed it in the
ffs_dev structure. This further makes the memory management
less convoluted and error-prone.
The configfs interface for functionfs imposed a limit of 40
characters for the name so this results in a 41-byte buffer
added to the structure. (For short names this may lead to
wasted memory but the actual amount is not immediately obvious
and depends on pointer size and which slab buckets the structure
and name would fall into).
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
As of commit bb475230b8 ("reset: make optional functions really
optional"), the reset framework API calls use NULL pointers to describe
optional, non-present reset controls.
This allows to return errors from devm_reset_control_get_optional and to
call reset_control_(de)assert unconditionally.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Since the old common Samsung USB PHY code has been removed by commit ea2fdf8423
("usb: phy: samsung: remove old common USB PHY code"), thus remove the unused
config.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This fixes the commit: 1cd8fd2887 ("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>
