Default 0 value can result in unintentional zlp for IN endpoints.
Tested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
USB3380 ep_cfg.direction bit is reserved in enhanced mode. Don't set
it.
Tested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
If ep->dma is set, abort_dma() takes care of dma clean-up. If ep->dma
is not set, unconditionally reset dma channel.
Tested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Sequence number can be out of sync if endpoint is disabled after some
data transfers and enabled again. Reset it to stay in sync with host.
Tested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
For some reason the code has always been disabling pullup
when asked to do the opposite. According to surrounding code
and gadget API this seems to be a mistake. This fix allows
UDC to be detected by host controller on recent kernels.
Signed-off-by: Sergiy Kibrik <sakib@meta.ua>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Using unnecessary static char buffers isn't good.
Use the %pV extension instead.
Miscellanea:
o the dprintk return value is unused, make it void
o add __printf format and argument verification
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
A recent change introduced a link error for the composite
printer gadget driver:
`printer_unbind' referenced in section `.ref.data' of drivers/built-in.o: defined in discarded section `.exit.text' of drivers/built-in.o
Evidently the unbind function should not be marked __exit here,
because it is called through a callback pointer that is not necessarily
discarded, __composite_unbind() is indeed called from the error path of
composite_bind(), which can never work for a built-in driver.
Looking at the surrounding code, I found the same problem in all other
composite gadget drivers in both the bind and unbind functions, as
well as the udc platform driver 'remove' functions. Those will break
if anyone uses the 'unbind' sysfs attribute to detach a device from a
built-in driver.
This patch removes the incorrect annotations from all the gadget
drivers.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
devm_ioremap_resource() returns IOMEM_ERR_PTR() and it never
returns NULL, fix the check to prevent access to invalid
virtual address.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Fix using the bare numbers to set the 'bDescriptorType' field of the Hub
Descriptors while the values are #define'd in <linux/usb/ch11.h>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change from using the __raw IO accesors to the endian agnostic versions
of readl/writel_relaxed when not on AVR32. This fixes issues with running
big endian on ARMv7.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
--
CC: Nicolas Ferre <nicolas.ferre@atmel.com>
CC: Felipe Balbi <balbi@ti.com>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CC: linux-usb@vger.kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The seq_printf/seq_puts/seq_putc return values, because they
are frequently misused, will eventually be converted to void.
See: commit 1f33c41c03 ("seq_file: Rename seq_overflow() to
seq_has_overflowed() and make public")
Miscellanea:
o Coalesce formats, realign arguments
o Create static functions for statement expression macros
o Use c90 style comments instead of c99
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit updates udc core vbus status, and try to connect
or disconnect gadget.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Instead of iterate to find usb_udc according to usb_gadget, this
way is easier.
Alan Stern suggests this way too:
http://marc.info/?l=linux-usb&m=142168496528894&w=2
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
udc is then checked for NULL, if NULL, it is then dereferenced as
udc->dev, it is found using Coccinelle.
We simplify the code to fix this problem, and we delete some conditions
at if {} which will never be met.
Reported-by: Tapasweni Pathak <tapaswenipathak@gmail.com>
Reported-by : Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Not everybody uses a utf8 locale (unfortunately), so let's avoid
non-ascii characters in the kernel log. Replace the 3-byte utf8
sequence with a 3-byte ascii equivalent.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch add suspend/resume with wakeup support for Atmel USBA.
On suspend: We stay continuously clocked if Vbus signal is not
available. If Vbus signal is available we set the Vbus signal as a wake
up source then we stop the USBA itself and all clocks used by USBA.
On resume: We recover clocks and USBA if we stopped them. If a device is
currently connected at resume time we enable the controller.
Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
If USB PLL is not necessary for other USB drivers (e.g. OHCI and EHCI)
we will reduce power consumption by switching off the USB PLL if no USB
Host is currently connected to this USB Device.
We are using Vbus GPIO signal to detect Host presence. If Vbus signal is
not available then the device stays continuously clocked.
Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Vbus IRQ handler needs a started UDC driver to work because it uses
udc->driver, which is set by the UDC start handler. The previous way
chosen was to return from interrupt if udc->driver is NULL using a
spinlock around the check.
We now request an auto disabled (IRQ_NOAUTOEN) Vbus signal IRQ instead
of an auto enabled IRQ followed by disable_irq(). This way we remove the
very small timeslot of enabled IRQ which existed previously between
request() and disable(). We don't need anymore to check if udc->driver
is NULL in IRQ handler.
Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
If vbus gpio is high at init, we should set vbus_prev to true
accordingly to the current vbus state. Without that, we skip the first
vbus interrupt because the saved vbus state is not consistent.
Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Silence the following warning:
drivers/usb/gadget/udc/net2280.c:3176:33: warning: context imbalance in
'handle_stat1_irqs' - unexpected unlock
Signed-off-by: Felipe Balbi <balbi@ti.com>
net2280_start can be called with pullup disabled. Don't set
softconnect flag in it. Let net2280_pullup handle the connection part.
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Hopefully, these prints will help localize the problems faster.
[ balbi@ti.com: removed 2 unnecessary OOM error messages ]
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Remove fiforegs from struct net2280 and net2280_ep as it is unused.
By the way, ep->fiforegs = &dev->fiforegs[i] assignment is incorrect.
It should be ep->fiforegs = &dev->fiforegs[ne[i]], but it doesn't
matter now.
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Each struct usb_ep added for net2280 can be used in either direction.
Whereas, each struct usb_ep for usb3380 has fixed direction. Use
ep_autoconf compatible names so that endpoint with correct direction
can be selected.
Name sequence is due to the logic in usb_reinit_338x() in ne[] and
ep_reg_addr[].
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The seq_printf return value, because it's frequently misused,
will eventually be converted to void.
See: commit 1f33c41c03 ("seq_file: Rename seq_overflow() to
seq_has_overflowed() and make public")
While there, simplify the error handler logic by returning
immediately and remove the unnecessary labels.
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Pull kconfig updates from Michal Marek:
"Yann E Morin was supposed to take over kconfig maintainership, but
this hasn't happened. So I'm sending a few kconfig patches that I
collected:
- Fix for missing va_end in kconfig
- merge_config.sh displays used if given too few arguments
- s/boolean/bool/ in Kconfig files for consistency, with the plan to
only support bool in the future"
* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kconfig: use va_end to match corresponding va_start
merge_config.sh: Display usage if given too few arguments
kconfig: use bool instead of boolean for type definition attributes
Pull debugfs patches from Al Viro:
"debugfs patches, mostly to make it possible for something like tracefs
to be transparently automounted on given directory in debugfs.
New primitive in there is debugfs_create_automount(name, parent, func,
arg), which creates a directory and makes its ->d_automount() return
func(arg). Another missing primitive was debugfs_create_file_size() -
open-coded in quite a few places. Dave's patch adds it and converts
the open-code instances to calling it"
* 'debugfs_automount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
debugfs: Provide a file creation function that also takes an initial size
new primitive: debugfs_create_automount()
debugfs: split end_creating() into success and failure cases
debugfs: take mode-dependent parts of debugfs_get_inode() into callers
fold debugfs_mknod() into callers
fold debugfs_create() into caller
fold debugfs_mkdir() into caller
debugfs_mknod(): get rid useless arguments
fold debugfs_link() into caller
debugfs: kill __create_file()
debugfs: split the beginning and the end of __create_file() off
debugfs_{mkdir,create,link}(): get rid of redundant argument
These are changes for drivers that are intimately tied to some SoC
and for some reason could not get merged through the respective
subsystem maintainer tree.
This time around, much of this is for at91, with the bulk of it being syscon
and udc drivers.
Also, there's:
- coupled cpuidle support for Samsung Exynos4210
- Renesas 73A0 common-clk work
- of/platform changes to tear down DMA mappings on device destruction
- a few updates to the TI Keystone knav code
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=T7R2
-----END PGP SIGNATURE-----
Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"These are changes for drivers that are intimately tied to some SoC and
for some reason could not get merged through the respective subsystem
maintainer tree.
This time around, much of this is for at91, with the bulk of it being
syscon and udc drivers.
Also, there's:
- coupled cpuidle support for Samsung Exynos4210
- Renesas 73A0 common-clk work
- of/platform changes to tear down DMA mappings on device destruction
- a few updates to the TI Keystone knav code"
* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (26 commits)
cpuidle: exynos: add coupled cpuidle support for exynos4210
ARM: EXYNOS: apply S5P_CENTRAL_SEQ_OPTION fix only when necessary
soc: ti: knav_qmss_queue: change knav_range_setup_acc_irq to static
soc: ti: knav_qmss_queue: makefile tweak to build as dynamic module
pcmcia: at91_cf: depend on !ARCH_MULTIPLATFORM
soc: ti: knav_qmss_queue: export API calls for use by user driver
of/platform: teardown DMA mappings on device destruction
usb: gadget: at91_udc: Allocate udc instance
usb: gadget: at91_udc: Update DT binding documentation
usb: gadget: at91_udc: Rework for multi-platform kernel support
usb: gadget: at91_udc: Simplify probe and remove functions
usb: gadget: at91_udc: Remove non-DT handling code
usb: gadget: at91_udc: Document DT clocks and clock-names property
usb: gadget: at91_udc: Drop uclk clock
usb: gadget: at91_udc: Fix clock names
mfd: syscon: Add Atmel SMC binding doc
mfd: syscon: Add atmel-smc registers definition
mfd: syscon: Add Atmel Matrix bus DT binding documentation
mfd: syscon: Add atmel-matrix registers definition
clk: shmobile: fix sparse NULL pointer warning
...
Provide a file creation function that also takes an initial size so that the
caller doesn't have to set i_size, thus meaning that we don't have to call
deal with ->d_inode in the callers.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Here's the big pull request for the USB driver tree for 3.20-rc1.
Nothing major happening here, just lots of gadget driver updates, new
device ids, and a bunch of cleanups.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iEYEABECAAYFAlTgtrcACgkQMUfUDdst+yn0tACgygJPNvu1l3ukNJCCpWuOErIj
3KsAnjiEXv90DLYJiVLJ4EbLPw0V9wAv
=DrJx
-----END PGP SIGNATURE-----
Merge tag 'usb-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB patches from Greg KH:
"Here's the big pull request for the USB driver tree for 3.20-rc1.
Nothing major happening here, just lots of gadget driver updates, new
device ids, and a bunch of cleanups.
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (299 commits)
usb: musb: fix device hotplug behind hub
usb: dwc2: Fix a bug in reading the endpoint directions from reg.
staging: emxx_udc: fix the build error
usb: Retry port status check on resume to work around RH bugs
Revert "usb: Reset USB-3 devices on USB-3 link bounce"
uhci-hub: use HUB_CHAR_*
usb: kconfig: replace PPC_OF with PPC
ehci-pci: disable for Intel MID platforms (update)
usb: gadget: Kconfig: use bool instead of boolean
usb: musb: blackfin: remove incorrect __exit_p()
USB: fix use-after-free bug in usb_hcd_unlink_urb()
ehci-pci: disable for Intel MID platforms
usb: host: pci_quirks: joing string literals
USB: add flag for HCDs that can't receive wakeup requests (isp1760-hcd)
USB: usbfs: allow URBs to be reaped after disconnection
cdc-acm: kill unnecessary messages
cdc-acm: add sanity checks
usb: phy: phy-generic: Fix USB PHY gpio reset
usb: dwc2: fix USB core dependencies
usb: renesas_usbhs: fix NULL pointer dereference in dma_release_channel()
...
This one was driving me mad, with several lines of warnings during the
allmodconfig build for a single bogus pointer cast. The warning was so
verbose due to the indirect macro expansion explanation, and the whole
thing was just for a debug printout.
The bogus pointer-to-integer cast was pointless anyway, so just remove
it, and use '%p' to show the pointer.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Delete private selfpowered variable, and use common one.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Delete private selfpowered variable, and use common one.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
fsl udc core assumes itself always self powered, so set is_selfpowered
is 1.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Delete private selfpowered variable, and use common one.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Delete private selfpowered variable, and use common one.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Now that this is DRD, it doesn't make sense to keep it under
drivers/usb/host.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The ISP1761 is a dual-mode host and device controller backward
compatible on the host side with the ISP1760. Add support for the device
controller.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Fix using the bare numbers to set the 'wHubCharacteristics' field of the Hub
Descriptor while the values are #define'd in <linux/usb/ch11.h>.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Allocate udc structure instead of relying on the statically declared
object.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
cpu_is_at91xxx are a set of macros defined in mach/cpu.h and are here used
to detect the SoC we are booting on.
Use compatible string + a caps structure to replace those cpu_is_xxx tests.
Remove all mach and asm headers (which are now unused).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Make use of devm_ functions to simplify probe and remove code.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Since non-DT board support has been removed from the at91 architecture we
can safely remove non-DT handling code.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Now that at91 system clocks forward set_rate request to their parent we
can remove the uclk clock and directly call clk_set_rate on fclk.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
The driver is requesting clock by their global name (those declared in the
clk_lookup list), but this only works with !CCF kernels.
Now that all SoCs have moved to CCF, fix the driver to use local names
(hclk and pclk).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Just three fixes this time. An oops fix in ep_write() from gadgetfs,
another oops for the Atmel UDC when unloading a gadget driver and
the fix for PHY deferred probing.
Signed-off-by: Felipe Balbi <balbi@ti.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=7Fj7
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-v3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v3.19-rc5
Just three fixes this time. An oops fix in ep_write() from gadgetfs,
another oops for the Atmel UDC when unloading a gadget driver and
the fix for PHY deferred probing.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Conflicts:
drivers/usb/phy/phy.c
UDC core has already done it before .udc_stop and after .udc_start.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
UDC core has already done it before .udc_stop and after .udc_start.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Cache INT_ENB register value in order to avoid uncached iomem access, and
thus improve access time to INT_ENB value.
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Avoid interpreting useless status flags when we're not waiting for such
events by masking the status variable with the interrupt enabled register
value.
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Reported-by: Patrice VILCHEZ <patrice.vilchez@atmel.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
at91sam9g45 and at91sam9x5 SoCs have an hardware bug forcing us to
generate a pulse on the BIAS signal on "USB end of reset” and
“USB end of resume" events.
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Reported-by: Patrice VILCHEZ <patrice.vilchez@atmel.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
at91sam9rl SoC has an erratum forcing us to toggle the BIAS on USB
suspend/resume events.
This specific handling is only activated when CONFIG_ARCH_AT91SAM9RL is
set and this option is only set when building a non-DT kernel, which is
problematic since non-DT support for at91sam9rl SoC has been removed.
Rework the toggle_bias implementation to attach it to the "at91sam9rl-udc"
compatible string.
Add new compatible strings to avoid executing at91sam9rl erratum handling
on other SoCs.
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Some debug messages were not build due to unconditional #if 0.
These messages are very useful for debugging and the user can enable
them on demand via dynamic debug.
If they are not enabled the performance is not affected.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
ASSERT_OUT_NAKING was only called by out_flush and was hidden behind a
ifdef.
This patch moves the inline function into out_flush and remove the
ifdef. The user can decide to print the debug message or not via dynamic
printk
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
After fix superspeed dma_done was applied we can simplify the code by
removing the duplicated dma_done and letting the function check if there
are more completed dma transactions.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The function is very simple, does not declare any variable and it is
called in the irq path.
The counterpart for net228x is already declared as inline.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Function resume_dma is not used, remove it.
The reason the compiler did not catch this dead code is the inline
modifier.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Once the defect 7374 is patched, there is no reason the keep reading the
idx scratch register.
Cache the content of the scratch idx register on device flag.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Do not duplicate the code for the else branch of the condition.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
We can use the same function for both families of chips and also remove
the ep_stop_dma() function.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
irqs_superspeed calls ep_stall instead of set/clear_halt, due to a
workaround for SS seqnum. Create a function with the workaround and
call set/clear_halt instead.
This way we can compare the code of super/normal speed and it is easier
to follow the code.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Field is_halt is never used by any function.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
ep_stdrsp was only called by handle_stat0_irqs_superspeed and with
always the same flags.
Remove the function and replace the call by the code inside the
function, since it is very simple once the dead code is removed.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
restart_dma is not used before it is declaration. Therefore we can
remove this definition.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Remove dma_started field from net2280_ep structure, since it is not used
by any function.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
use_dma parameter was designed to enable the dma on the chip. It was
enabled by default.
It comes from the time when the dma was not reliable. Now it has been
working ok in production.
This patch removes this parameter.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Parameter use_msi was used to enable msi irq on usb338x chips, it was
enabled by default.
There is no reason to prefer non-msi irq on usb338x, and it falls back
to non msi on error.
Therefore remove this option.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch removes the full_speed parameter used force full-speed
operation.
It was designed exclusively for testing purposes, and there is no
reason to maintain this in a production kernel.
Reverts: 2f07607747
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
use_dma_chaining module parameter was designed to avoid creating one irq
per package on a group of packages (with the help of the driver's flag
no_interrupt).
Unfortunately, when this parameter is enabled, the driver fails to work
on both net2280 and 3380 chips.
This patch removes this parameter, which was disabled by default.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
fixups for incorrect use of DECLARE_COMPLETION. see also commit
6e9a4738 ("completions: lockdep annotate on stack completions")
patch is against 3.18.0 linux-next
This was only code reviewed and compile tested
Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Remove .owner field if calls are used which set it automatically
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
"ep" isn't NULL here, and static checkers complain because we
dereferenced it on the previous line.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
We already know what "value" is, so there is no need to check. It
puzzles static checkers to have the unneeded condition.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Removes some functions that are not used anywhere:
s3c2410_udc_clear_ep_state() s3c2410_udc_set_ep0_sse_out()
This was partially found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Felipe Balbi <balbi@ti.com>
When unloading the module 'g_hid.ko', the urb request will be dequeued and the
completion routine will be excuted. If there is no urb packet, the urb request
will not be added to the endpoint queue and the completion routine pointer in
urb request is NULL.
Accessing to this NULL function pointer will cause the Oops issue reported
below.
Add the code to check if the urb request is in the endpoint queue
or not. If the urb request is not in the endpoint queue, a negative
error code will be returned.
Here is the Oops log:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = dedf0000
[00000000] *pgd=3ede5831, *pte=00000000, *ppte=00000000
Internal error: Oops: 80000007 [#1] ARM
Modules linked in: g_hid(-) usb_f_hid libcomposite
CPU: 0 PID: 923 Comm: rmmod Not tainted 3.18.0+ #2
Hardware name: Atmel SAMA5 (Device Tree)
task: df6b1100 ti: dedf6000 task.ti: dedf6000
PC is at 0x0
LR is at usb_gadget_giveback_request+0xc/0x10
pc : [<00000000>] lr : [<c02ace88>] psr: 60000093
sp : dedf7eb0 ip : df572634 fp : 00000000
r10: 00000000 r9 : df52e210 r8 : 60000013
r7 : df6a9858 r6 : df52e210 r5 : df6a9858 r4 : df572600
r3 : 00000000 r2 : ffffff98 r1 : df572600 r0 : df6a9868
Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user
Control: 10c53c7d Table: 3edf0059 DAC: 00000015
Process rmmod (pid: 923, stack limit = 0xdedf6230)
Stack: (0xdedf7eb0 to 0xdedf8000)
7ea0: 00000000 c02adbbc df572580 deced608
7ec0: df572600 df6a9868 df572634 c02aed3c df577c00 c01b8608 00000000 df6be27c
7ee0: 00200200 00100100 bf0162f4 c000e544 dedf6000 00000000 00000000 bf010c00
7f00: bf0162cc bf00159c 00000000 df572980 df52e218 00000001 df5729b8 bf0031d0
[..]
[<c02ace88>] (usb_gadget_giveback_request) from [<c02adbbc>] (request_complete+0x64/0x88)
[<c02adbbc>] (request_complete) from [<c02aed3c>] (usba_ep_dequeue+0x70/0x128)
[<c02aed3c>] (usba_ep_dequeue) from [<bf010c00>] (hidg_unbind+0x50/0x7c [usb_f_hid])
[<bf010c00>] (hidg_unbind [usb_f_hid]) from [<bf00159c>] (remove_config.isra.6+0x98/0x9c [libcomposite])
[<bf00159c>] (remove_config.isra.6 [libcomposite]) from [<bf0031d0>] (__composite_unbind+0x34/0x98 [libcomposite])
[<bf0031d0>] (__composite_unbind [libcomposite]) from [<c02acee0>] (usb_gadget_remove_driver+0x50/0x78)
[<c02acee0>] (usb_gadget_remove_driver) from [<c02ad570>] (usb_gadget_unregister_driver+0x64/0x94)
[<c02ad570>] (usb_gadget_unregister_driver) from [<bf0160c0>] (hidg_cleanup+0x10/0x34 [g_hid])
[<bf0160c0>] (hidg_cleanup [g_hid]) from [<c0056748>] (SyS_delete_module+0x118/0x19c)
[<c0056748>] (SyS_delete_module) from [<c000e3c0>] (ret_fast_syscall+0x0/0x30)
Code: bad PC value
Signed-off-by: Songjun Wu <songjun.wu@atmel.com>
[nicolas.ferre@atmel.com: reworked the commit message]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Fixes: 914a3f3b37 ("USB: add atmel_usba_udc driver")
Cc: <stable@vger.kernel.org> # 2.6.x-ish
Signed-off-by: Felipe Balbi <balbi@ti.com>
Support for keyword 'boolean' will be dropped later on.
No functional change.
Reference: http://lkml.kernel.org/r/cover.1418003065.git.cj@linux.com
Signed-off-by: Christoph Jaeger <cj@linux.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
When receive data, the RXRDY in status register set by hardware
after a new packet has been stored in the endpoint FIFO. When it
is copied from FIFO, this bit is cleared which make the FIFO can
be accessed again.
In the receive_data() function, this bit RXRDY has been cleared.
So, after the receive_data() function return, this bit should
not be cleared again, or else it may cause the accessing FIFO
corrupt, which will make the data loss.
Fixes: 914a3f3b37 (USB: add atmel_usba_udc driver)
Cc: <stable@vger.kernel.org> # 2.6.24+
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
According to the datasheet, when transfer using DMA, the control
setting for IN packet only need END_BUF_EN, END_BUF_IE, CH_EN,
while for OUT packet, need more two bits END_TR_EN and END_TR_IE
to be configured.
Fixes: 914a3f3b37 (USB: add atmel_usba_udc driver)
Cc: <stable@vger.kernel.org> # 2.6.24+
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes, just
removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There are
some ath9k patches coming in through this tree that have been acked by
the wireless maintainers as they relied on the debugfs changes.
Everything has been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iEYEABECAAYFAlSOD20ACgkQMUfUDdst+ylLPACg2QrW1oHhdTMT9WI8jihlHVRM
53kAoLeteByQ3iVwWurwwseRPiWa8+MI
=OVRS
-----END PGP SIGNATURE-----
Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core update from Greg KH:
"Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes,
just removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There
are some ath9k patches coming in through this tree that have been
acked by the wireless maintainers as they relied on the debugfs
changes.
Everything has been in linux-next for a while"
* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
fs: debugfs: add forward declaration for struct device type
firmware class: Deletion of an unnecessary check before the function call "vunmap"
firmware loader: fix hung task warning dump
devcoredump: provide a one-way disable function
device: Add dev_<level>_once variants
ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
ath: use seq_file api for ath9k debugfs files
debugfs: add helper function to create device related seq_file
drivers/base: cacheinfo: remove noisy error boot message
Revert "core: platform: add warning if driver has no owner"
drivers: base: support cpu cache information interface to userspace via sysfs
drivers: base: add cpu_device_create to support per-cpu devices
topology: replace custom attribute macros with standard DEVICE_ATTR*
cpumask: factor out show_cpumap into separate helper function
driver core: Fix unbalanced device reference in drivers_probe
driver core: fix race with userland in device_add()
sysfs/kernfs: make read requests on pre-alloc files use the buffer.
sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
fs: sysfs: return EGBIG on write if offset is larger than file size
...
There were curly braces intended here.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
debugfs_remove() is safe against NULL pointers, so
let's remove the unnecessary NULL check before
calling it.
Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
debugfs_remove() is safe against NULL pointers, so
let's remove the unnecessary NULL check before
calling it.
Acked-by: Peter Chen <peter.chen@freeescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Parameter three in function call dma_done() is incorrect.
Move use of variable 'tmp' after if-condition.
Signed-off-by: Mario Schuknecht <mario.schuknecht@dresearch-fe.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Commit 7628083227 (usb: gadget: at91_udc:
prepare clk before calling enable) added clock preparation in interrupt
context. This is not allowed as it might sleep. Also setting the clock
rate is unsafe to call from there for the same reason. Move clock
preparation and setting clock rate into process context (at91udc_probe).
Signed-off-by: Ronald Wahl <ronald.wahl@raritan.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: <stable@vger.kernel.org> # v3.17+
Signed-off-by: Felipe Balbi <balbi@ti.com>
As the driver call usb_add_gadget_udc --> usb_add_gadget_udc_release
with NULL as release parameter, so it will use usb_udc_no_release.
So, the release in driver won't used, remove it.
And at the same time, in the usb_add_gadget_udc_release will set the
gadget name, so remove it also in driver.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
As the driver call usb_add_gadget_udc --> usb_add_gadget_udc_release
with NULL as release parameter, so it will use usb_udc_no_release.
So, the release in driver won't used, remove it.
And at the same time, in the usb_add_gadget_udc_release will set the
gadget name, so remove it also in driver.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch adds a UDC driver for Broadcom's USB3.0 Peripheral core named BDC.
BDC supports control traffic on ep0 and bulk/Int/Isoch traffic on all other
endpoints.
[ balbi@ti.com : fix build error on randconfig due to lack of
<linux/dmapool.h> ]
Signed-off-by: Ashwini Pahuja <ashwini.linux@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Replace usb_gadget_driver's disconnect with udc-core's reset notifier at
bus reset handler.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Replace usb_gadget_driver's disconnect with udc-core's reset notifier at
bus reset handler.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Replace usb_gadget_driver's disconnect with udc-core's reset notifier at
bus reset handler.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Replace usb_gadget_driver's disconnect with udc-core's reset notifier at
bus reset handler.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Replace usb_gadget_driver's disconnect with udc-core's reset notifier at
bus reset handler.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Replace usb_gadget_driver's disconnect with udc-core's reset notifier at
bus reset handler.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Replace usb_gadget_driver's disconnect with udc-core's reset notifier at
bus reset handler.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Replace usb_gadget_driver's disconnect with udc-core's reset notifier at
bus reset handler.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Replace usb_gadget_driver's disconnect with udc-core's reset notifier at
bus reset handler.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Replace usb_gadget_driver's disconnect with udc-core's reset notifier at
bus reset handler.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Replace usb_gadget_driver's disconnect with udc-core's reset notifier at
bus reset handler.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch adds support for the new udc-core reset notifier to the
net2272 driver.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch adds support for the new udc-core reset notifier to the
net2280 driver.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Replace usb_gadget_driver's disconnect with udc-core's reset notifier at
bus reset handler.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Peter chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The recent change bringing device-tree support triggers a warning in a
non device-tree build :
drivers/usb/gadget/udc/pxa27x_udc.c:2405:28: warning: 'udc_pxa_dt_ids'
defined but not used [-Wunused-variable]
Fix the warning with a preprocessor condition.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
drivers/usb/gadget/udc/r8a66597-udc.c:1849:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
Generated by: scripts/coccinelle/api/ptr_ret.cocci
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
that call is completely unnecessary because
usb_del_gadget_udc() already makes sure the
gadget driver is properly unregistered from
the UDC.
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
that call is completely unnecessary because
usb_del_gadget_udc() already makes sure the
gadget driver is properly unregistered from
the UDC.
Signed-off-by: Felipe Balbi <balbi@ti.com>
that call is completely unnecessary because
usb_del_gadget_udc() already makes sure the
gadget driver is properly unregistered from
the UDC.
Signed-off-by: Felipe Balbi <balbi@ti.com>
As the udc clock controls both the output signals and the internal IP,
it must be enabled before any UDC register is touched.
The bug is revealed when the clock framework disables the clock for a
couple of milliseconds during the boot sequence, and the endpoint
configuration is lost. The bug is hidden when clock framework is not
used, because no "unused clocks disable" occurs.
This patch fixes the wrong behaviour by ensuring that :
- whenever a UDC register is read or written, the clock is enabled
- reworks the endpoints programming to have it done under running clock
- reworks suspend/resume to ensure the same thing
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Use devm_* helpers in the probe function to simplify the error path and
the remove path.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
now that no UDC driver relies on the extra
'driver' argument to ->udc_stop(), we can
safely remove it.
This commit is based on previous work by
Robert Baldyga <r.baldyga@samsung.com> which
can be found at [1]; however that patch turned
out to have a high probability of regressing
many UDC drivers because of a blind search & replace
s/driver/$udc->driver/ which caused the 'driver'
argument to stop_activity() to be a valid non-NULL
pointer when it should be NULL, thus causing UDCs
to mistakenly call gadget driver's ->disconnect()
callback.
[1] http://markmail.org/message/x5zneg4xea4zntab
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Currently, we're printing gadget driver name when
registering and UDC name when unregistering. Standardize
on always printing gadget driver name.
Signed-off-by: Felipe Balbi <balbi@ti.com>
now that we provide generic register/unregister
debugging messages from udc-core, we can remove
the same messages from this driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>
now that we provide generic register/unregister
debugging messages from udc-core, we can remove
the same messages from this driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>
now that we provide generic register/unregister
debugging messages from udc-core, we can remove
the same messages from this driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>
now that we provide generic register/unregister
debugging messages from udc-core, we can remove
the same messages from this driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>
now that we provide generic register/unregister
debugging messages from udc-core, we can remove
the same messages from this driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>
now that we provide generic register/unregister
debugging messages from udc-core, we can remove
the same messages from this driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>
now that we provide generic register/unregister
debugging messages from udc-core, we can remove
the same messages from this driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>
now that we provide generic register/unregister
debugging messages from udc-core, we can remove
the same messages from this driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>
We know that our udc points to our gadget and our
gadget_driver, simplify the interface by passing
a single argument.
Signed-off-by: Felipe Balbi <balbi@ti.com>
future patches will remove the extra 'driver'
argument to ->udc_stop(), in order to do that,
we must make sure that our UDC does not rely
on it first.
Signed-off-by: Felipe Balbi <balbi@ti.com>
future patches will remove the extra 'driver'
argument to ->udc_stop(), in order to do that,
we must make sure that our UDC does not rely
on it first.
Signed-off-by: Felipe Balbi <balbi@ti.com>
future patches will remove the extra 'driver'
argument to ->udc_stop(), in order to do that,
we must make sure that our UDC does not rely
on it first.
Signed-off-by: Felipe Balbi <balbi@ti.com>
future patches will remove the extra 'driver'
argument to ->udc_stop(), in order to do that,
we must make sure that our UDC does not rely
on it first.
Signed-off-by: Felipe Balbi <balbi@ti.com>
future patches will remove the extra 'driver'
argument to ->udc_stop(), in order to do that,
we must make sure that our UDC does not rely
on it first.
Signed-off-by: Felipe Balbi <balbi@ti.com>
future patches will remove the extra 'driver'
argument to ->udc_stop(), in order to do that,
we must make sure that our UDC does not rely
on it first.
Signed-off-by: Felipe Balbi <balbi@ti.com>
future patches will remove the extra 'driver'
argument to ->udc_stop(), in order to do that,
we must make sure that our UDC does not rely
on it first.
Signed-off-by: Felipe Balbi <balbi@ti.com>
future patches will remove the extra 'driver'
argument to ->udc_stop(), in order to do that,
we must make sure that our UDC does not rely
on it first.
Signed-off-by: Felipe Balbi <balbi@ti.com>
future patches will remove the extra 'driver'
argument to ->udc_stop(), in order to do that,
we must make sure that our UDC does not rely
on it first.
Signed-off-by: Felipe Balbi <balbi@ti.com>
future patches will remove the extra 'driver'
argument to ->udc_stop(), in order to do that,
we must make sure that our UDC does not rely
on it first.
Signed-off-by: Felipe Balbi <balbi@ti.com>
future patches will remove the extra 'driver'
argument to ->udc_stop(), in order to do that,
we must make sure that our UDC does not rely
on it first.
Signed-off-by: Felipe Balbi <balbi@ti.com>
future patches will remove the extra 'driver'
argument to ->udc_stop(), in order to do that,
we must make sure that our UDC does not rely
on it first.
Signed-off-by: Felipe Balbi <balbi@ti.com>
The memory subsystem has already had similar message for it.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The memory subsystem has already had similar message for it.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The memory subsystem has already had similar message for it.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The memory subsystem has already had similar message for it.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
when disconnecting from host using our soft_connect
sysfs interface, also let the gadget driver know about
it by calling the gadget driver's ->disconnect()
method.
No problems have been found while not calling ->disconnect()
so far, it's just good convention.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add support for device-tree device discovery. If devicetree is not
provided, fallback to legacy platform data "discovery".
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: devicetree@vger.kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
Convert the mach info, and store the udc_command in the pxa_udc control
structure.
It is to be noticed that the udc_is_connected() in mach info is not
transfered. This was not used, as mioa701 machine doesn't need it,
balloon3 doesn't really use it, and most importantly the current driver
never uses it.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
For this preparation, a preliminary cleanup is done :
- convert the probing of pxa27x_udc to gpio_desc.
The conversion is partial because :
- the platform data still provides a gpio number, not a gpio desc
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
If NO_DMA=y:
drivers/built-in.o: In function `xudc_done':
udc-xilinx.c:(.text+0x54f4d2): undefined reference to `usb_gadget_unmap_request'
drivers/built-in.o: In function `xudc_dma_send':
udc-xilinx.c:(.text+0x54f9f8): undefined reference to `dma_sync_single_for_cpu'
drivers/built-in.o: In function `xudc_read_fifo':
udc-xilinx.c:(.text+0x54ff4a): undefined reference to `dma_sync_single_for_cpu'
drivers/built-in.o: In function `xudc_ep_queue':
udc-xilinx.c:(.text+0x550e7c): undefined reference to `usb_gadget_map_request'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
With this patch, USB activity can be signaled by blinking a LED. There
are two triggers, one for activity on USB host and one for USB gadget.
Both triggers should work with all host/device controllers. Tested only
with musb.
Performace: I measured performance overheads on ARM Cortex-A8 (TI
AM335x) running on 600 MHz.
Duration of usb_led_activity():
- with no LED attached to the trigger: 2 ± 1 µs
- with one GPIO LED attached to the trigger: 2 ± 1 µs or 8 ± 2 µs (two peaks in histogram)
Duration of functions calling usb_led_activity() (with this patch
applied and no LED attached to the trigger):
- __usb_hcd_giveback_urb(): 10 - 25 µs
- usb_gadget_giveback_request(): 2 - 6 µs
Signed-off-by: Michal Sojka <sojka@merica.cz>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the recently introduced usb_gadget_giveback_request() in favor of
direct invocation of the completion routine.
All places in drivers/usb/ matching "[-.]complete(" were replaced with a
call to usb_gadget_giveback_request(). This was compile-tested with all
ARM drivers enabled and runtime-tested for musb.
Signed-off-by: Michal Sojka <sojka@merica.cz>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
All USB peripheral controller drivers call completion routines directly.
This patch adds usb_gadget_giveback_request() which will be used instead
of direct invocation in the next patch. The goal here is to have a place
where common functionality can be added.
Signed-off-by: Michal Sojka <sojka@merica.cz>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This adds a bounce buffer that handles the end of OUT requests where
req.length is not divisible by ep->ep.maxpacket.
Before this, such requests were rejected as the DMA engine cannot
restrict itself to buffers that are smaller than ep->ep.maxpacket.
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The state attribute is connected to the kobj of the udc, not the gadget.
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The udc driver can notify the udc core that bus reset occurs by
calling this utility, the core will notify gadget driver this
information and update gadget state accordingly.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Xilinx USB2 device is a soft IP which supports both full
and high speed USB 2.0 data transfers. This patch adds
xilinx usb2 device driver support.
Signed-off-by: Subbaraya Sundeep Bhatta <sbhatta@xilinx.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJUDOW+AAoJEHm+PkMAQRiGOXYH/00TPKm8PdM5cXXG2YYYv9eT
W99K7KD2i0/qiVtlGgjjvB7fO3K0HcZusTd2jmVd8IWntXvauq7Zpw5YZkjwu4KX
Y1HCwwCd2aw0FoqgrJhNP3+j5Cr1BD/HLtbffjCe+A3tppOIis4Bwt2wJOoYlXpS
hU9Jxxc4lcRo8YKbffouDo7PIneWeJy8N+WGpUR5BfJIEK0ZZtCUqn3/3WLX4FYu
fE6uiF/bACTpKXU/mo4dDbhZp439H/QdwQc9B0F8+8CBDMXKaNHrPV7kN36T2SWa
fD4boikTsi/yh9Ks1fvHbvNq2N0ihoMnja+vLRyvjAcAQv2fKG3OZtYgFWSdghU=
=Xknd
-----END PGP SIGNATURE-----
Merge tag 'v3.17-rc4' into next
Merge Linux 3.17-rc4 here so we have all the latest
fixes on next too. This also cleans up a few conflicts
when applying patches.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Conflicts:
drivers/usb/gadget/Makefile
drivers/usb/gadget/function/Makefile
drivers/usb/gadget/legacy/Makefile
drivers/usb/phy/phy-samsung-usb.h
Clearly this was meant to be an include guard, but a trailing
underscore was missing. It has been this way since the file was
introduced in 0fe6f1d1 ("usb: udc: add Faraday fusb300 driver").
Fixes: 0fe6f1d1 ("usb: udc: add Faraday fusb300 driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
If NO_DMA=y:
drivers/built-in.o: In function `usbhsg_dma_map_ctrl':
mod_gadget.c:(.text+0x53b226): undefined reference to `usb_gadget_map_request'
mod_gadget.c:(.text+0x53b242): undefined reference to `usb_gadget_unmap_request'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch introduces the use of the functions usb_endpoint_type and
usb_endpoint_num.
The Coccinelle semantic patch that makes these changes is as follows:
@@ struct usb_endpoint_descriptor *epd; @@
- (epd->bEndpointAddress & \(USB_ENDPOINT_NUMBER_MASK\|0x0f\))
+ usb_endpoint_num(epd)
@@ struct usb_endpoint_descriptor *epd; @@
- (epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\))
+ usb_endpoint_type(epd)
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch is to enable the USB gadget device for Intel Quark X1000
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@intel.com>
Signed-off-by: Bing Niu <bing.niu@intel.com>
Signed-off-by: Alvin (Weike) Chen <alvin.chen@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
As, the interrupt for DMA is counted from 1, so need to checked
the USBA_NR_DMAS, in old way, it only check (USBA_NR_DMAS - 1),
so fix it.
Reported-by: Max Liao <liaops@embest-tech.com>
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Convert a zero return value on error to a negative one, as returned
elsewhere in the function.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}
// </smpl>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Surprisingly enough, while a big set of patches, the majority is
composed of cleanups (using devm_*, fixing sparse errors, moving
code around, adding const, etc).
The highlights are addition of new support for PLX USB338x devices,
and support for USB 2.0-only configurations of the DWC3 IP core.
Signed-of-by: Felipe Balbi <balbi@ti.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=aJY4
-----END PGP SIGNATURE-----
Merge tag 'usb-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: patches for v3.17 merge window
Surprisingly enough, while a big set of patches, the majority is
composed of cleanups (using devm_*, fixing sparse errors, moving
code around, adding const, etc).
The highlights are addition of new support for PLX USB338x devices,
and support for USB 2.0-only configurations of the DWC3 IP core.
Signed-of-by: Felipe Balbi <balbi@ti.com>
No functional changes, just fixing one easy to spot
sparse error.
While fixing that sparse error, I had to add two
includes to a header to avoid a build error.
Signed-off-by: Felipe Balbi <balbi@ti.com>
The drivers/usb/gadget directory contains many files.
Files which are related can be distributed into separate directories.
This patch moves the UDC drivers into a separate directory.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Mian Yousaf Kaukab