Like vbus, the dr_mode and phy_mode are also got from glue layer's
platform data or device node.
Signed-off-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The udc-core will call gadget's driver->disconnect, so we should avoid
calling gadget's disconnect again at ci_udc_stop in case the gadget's
unbind free some structs which is still used at gadget's disconnect.
Tested-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Now, chipidea host has already depended on USB_EHCI_HCD
Acked-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

There is a pending TD which is not freed after request finishes,
we do this due to a controller bug. This TD needs to be freed when
the driver is removed. It prints below error message when unload
chipidea driver at current code:
"ci_hdrc ci_hdrc.0: dma_pool_destroy ci_hw_td, b0001000 busy"
It indicates the buffer at dma pool are still in use.

This commit will free the pending TD at driver's removal procedure,
it can fix the problem described above.
Signed-off-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Support for specifying soft dependencies in the modules themselves was
introduced in commit 7cb14ba7.

In Arch we have always been shipping a module.d(5) fragment ordering ohci/uhci
after ehci. If this ordering is really necessary, it would be great to move it
to the kernel and getting the correct fragment generated by depmod.
Signed-off-by: NTom Gundersen <teg@jklm.no>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit 3b8d7321, which
brings back commit 428aac8a as it should
be working for the 3.13-rc1 merge window now that Alan's other fixes are
here in the tree already.

Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Ming Lei <ming.lei@canonical.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Urb fields are stored in struct usbdevfs_ctrltransfer in CPU byteorder
and not in little endian, so there is no need to be converted.
This bug was reported by sparse.
Signed-off-by: NXenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

In the bos usb_ss_cap_descriptor structure, bU2DevExitLat is of type __le16.
This value is used as it is, without being first converted to the CPU
byteorder, for the setup of usb device's usb3_lpm_parameters.
This patch fixes that by converting bU2DevExitLat field to the CPU byteorder
before the assignmenment to [udev/hub]_u2_del variables.
Signed-off-by: NXenia Ragiadakou <burzalodowa@gmail.com>
Reported-by: Nkbuild test robot <fengguang.wu@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch sets the lpm_capable field for root hubs with LPM capabilities.
Signed-off-by: NXenia Ragiadakou <burzalodowa@gmail.com>
Reported-by: NMartin MOKREJS <mmokrejs@gmail.com>
Suggested-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The hcd-driver free_streams method can return an error, so lets properly
propagate that.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch updates the iso_stream_schedule() routine in ehci-sched.c
to handle cases where an underrun causes an isochronous endpoint's
queue to empty out, but the client driver wants to maintain
synchronization with the device (i.e., the URB_ISO_ASAP flag is not
set).  This could not happen until recently, when ehci-hcd switched
over to completing URBs in a tasklet.

(This may seem like an unlikely case to worry about, but underruns are
all too common with the snd-usb-audio driver, which doesn't use
URB_ISO_ASAP.)

As part of the fix, some URBs may need to be given back when they are
submitted.  This is necessary when the URB's scheduled slots all fall
before the current value of ehci->last_iso_frame, and as an
optimization we do it also when the slots all fall before the current
frame number.

As a second part of the fix, we may need to skip some but not all of
an URB's packets.  This is necessary when some of the URB's scheduled
slots fall before the current value of ehci->last_iso_frame and some
of them fall after the current frame number.  A new field
(first_packet) is added to struct ehci_iso_sched, to indicate how many
packets should be skipped.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
CC: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch interchanges the "if" and "else" branches of the big "if"
statement in iso_stream_schedule(), in preparation for the next patch
in this series.  That is, it changes

	if (likely(!...)) {
		A
	} else {
		B
	}

to

	if (unlikely(...)) {
		B
	} else {
		A
	}
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Now that URBs can be completed inside tasklets, we need a way of
determining whether a completion handler for a given endpoint is
currently running.  Otherwise it's not possible to maintain the API
guarantee about keeping isochronous streams synchronous when an
underrun occurs.

This patch adds a field and a routine to check whether a completion
handler for a periodic endpoint is running.  At the moment no
analogous routine appears to be necessary for async endpoints, but one
can always be added.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
CC: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

According to Prolific, several (unauthorized) cheap and less functional
clones of the PL2303HX chip are in circulation. [1]
I've had the chance to test such a cloned device and it turned out that
it doesn't support any baud rates above 115200 baud (original: 6 Mbaud)
It also doesn't support the divisior based baud rate encoding method,
so no continuous baud rate adjustment is possible.
Nevertheless, these devices have been working (unintentionally) with
the driver up to commit 61fa8d69 ("pl2303: also use the divisor based
baud rate encoding method for baud rates < 115200 with HX chips"), and
this commit broke support for them.
Fortunately, it is pretty simple to distinguish between the original
and the cloned HX chips, so I've added a check and an extra chip type
to keep the clones working.
The same check is used by the latest Prolific Windows driver, so it
should be solid.

[1] http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=225&pcid=41Signed-off-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Update the MODULE_AUTHOR field of the Faraday OTG drivers to reflect
current maintainers email address.
Signed-off-by: NDave Jones <davej@fedoraproject.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: NDave Jones <davej@fedoraproject.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit 428aac8a.

This isn't quite ready for 3.12, we need some more EHCI driver changes
that are just now showing up.  So revert this for now, and queue it up
later for 3.13.
Reported-by: NAlan Stern <stern@rowland.harvard.edu>
Cc: Ming Lei <ming.lei@canonical.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

DWC2 databook indicates if the core sets "ErlySusp" bit, an idle state has been
detected on the USB for 3 ms. This situation can be occurred when waiting
a request from user daemon. So, we should keep the connection between udc and
gadget even though this interrupt is occurred.
Signed-off-by: NChanho Park <chanho61.park@samsung.com>
Signed-off-by: NRobert Baldyga <r.baldyga@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

After driver conversion to udc_start/udc_stop infrastructure (commit
"usb:hsotg:samsung: Use new udc_start and udc_stop callbacks"
f65f0f10) the gadget unregistration function is almost always called
with 'driver' parameter being NULL, what caused that the unregistration
code has not been executed at all. This is a leftover from the earlier
verison of this function (which used simple start/stop interface), where
driver parameter was obligatory.

This patch removes the NULL check for the 'driver' pointer and removes
all dereferences of it. It also moves disabling voltage regulators out
of the atomic context, because handling regulators (which are usually
i2c devices) might require sleeping.
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NRobert Baldyga <r.baldyga@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Gadgets endpoint driver data is a criteria to judge that
whether the endpoints are in use or not. When gadget gets
assigned an endpoint from endpoint list, they check its
driver data if the driver data is NULL.

If the driver data is not NULL then they regard it as in use.
Therefore all of gadgets should reset their endpoints driver
data to NULL as they are disabled. Otherwise it causes a leak
of endpoint resource.
Signed-off-by: NPeter Oh <poh@broadcom.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Local symbols used in this file are made static.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Cc: Anatolij Gustschin <agust@denx.de>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

'eem_alloc' is local to this file. Make it static.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

'ecm_alloc' is local to this file. Make it static.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

The function returns a pointer. Hence return NULL instead of 0.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

If dwc3_gadget_init_endpoint() fails after allocate some of the eps, we
need to free their memory to avoid leak.
Signed-off-by: NDavid Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

It is required by the OMAP glue driver, but it already depends
on it. The core driver should not depend on it. This will
allow the use of the PCI glue driver again.
Signed-off-by: NHeikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

They are only called by '__ref' function multi_bind(), and they will
call '__init' functions, so recommend to let them '__ref' too.

The related warnings:

  WARNING: drivers/usb/gadget/g_multi.o(.text+0xded6): Section mismatch in reference from the variable .LM2921 to the variable .init.text:_rndis_do_config
  The function .LM2921() references
  the variable __init _rndis_do_config.
  This is often because .LM2921 lacks a __init
  annotation or the annotation of _rndis_do_config is wrong.

  WARNING: drivers/usb/gadget/g_multi.o(.text+0xdf16): Section mismatch in reference from the variable .LM2953 to the variable .init.text:_cdc_do_config
  The function .LM2953() references
  the variable __init _cdc_do_config.
  This is often because .LM2953 lacks a __init
  annotation or the annotation of _cdc_do_config is wrong.
Signed-off-by: NChen Gang <gang.chen@asianux.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Add PCI id for Intel BayTrail.
Signed-off-by: NHeikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This fixes commit a38a2750
(usb: gadget: cdc2: convert to new interface of f_ecm)

The invocation of usb_get_function_instance() is in cdc_bind()
and should not be repeated in cdc_do_config().
Signed-off-by: NAndrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch fixes a NULL pointer dereference and a WARN_ON in
dummy-hcd.  These things were the result of moving to the UDC core
framework, and possibly of changes to that framework.

Now unloading a gadget driver causes the UDC to be stopped after the
gadget driver is unbound, not before.  Therefore the "driver" argument
to dummy_udc_stop() can be NULL, so we must not try to print the
driver's name without checking first.

Also, the UDC framework automatically unregisters the gadget when the
UDC is deleted.  Therefore a sysfs attribute file attached to the
gadget must be removed before the UDC is deleted, not after.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
CC: <stable@vger.kernel.org>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

mv_u3d_nuke() expects to be calles with ep->u3d->lock held,
because mv_u3d_done() does. But mv_u3d_ep_disable() calls it
without lock that can lead to unpleasant consequences.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HARDIRQS can be removed.
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

This patch fixes the incorrect assignment of a variable with type 'le16'
to a variable with type 'unsigned int'.
Signed-off-by: NXenia Ragiadakou <burzalodowa@gmail.com>
Reported-by: Nkbuild test robot <fengguang.wu@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

In usb_reset_and_verify_device(), hub_port_init() allocates a new bos
descriptor to hold the value read by the device. The new bos descriptor
has to be compared with the old one in order to figure out if device 's
firmware has changed in which case the device has to be reenumerated.
In the original code, none of the two descriptors was deallocated leading
to memory leaks.

This patch compares the old bos descriptor with the new one to detect change
in firmware and releases the newly allocated bos descriptor to prevent memory
leak.
Signed-off-by: NXenia Ragiadakou <burzalodowa@gmail.com>
Reported-by: NMartin MOKREJS <mmokrejs@gmail.com>
Tested-by: NMartin MOKREJS <mmokrejs@gmail.com>
Suggested-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch removes the ehci statictics information output in ehci_stop()
because they do not provide interesting info. At any case, the current
statistics can be viewed by reading the 'registers' file in debugfs.
Signed-off-by: NXenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch removes the duplicate of debug_async_open() prototype following
three lines below the debug_async_open() declaration.
Signed-off-by: NXenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The debugging code for ehci is enabled to run if the DEBUG flag is defined.
This patch enables the debugging code also when the kernel is configured
with dynamic debugging on.
Signed-off-by: NXenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch removes ehci_vdbg debugging statements from EHCI host controller
driver because they produce too much information, lowering the signal to noise
ratio when debugging, and because they are not used anymore.
Signed-off-by: NXenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &of->dev,
so we can directly pass a struct platform_device.
Signed-off-by: NLibo Chen <libo.chen@huawei.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>