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Use a proper PHY driver, instead of hooks to a board support package.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is done do that it could be enabled alongside other platform EHCI
glue drivers on multiplatform kernels.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that the SPDX tag is in all USB files, that identifies the license
in a specific and legally-defined manner. So the extra GPL text wording
can be removed as it is no longer needed at all.
This is done on a quest to remove the 700+ different ways that files in
the kernel describe the GPL license text. And there's unneeded stuff
like the address (sometimes incorrect) for the FSF which is never
needed.
No copyright headers or other non-license-description text was removed.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.
Update the drivers/usb/ and include/linux/usb* files with the correct
SPDX license identifier based on the license text in the file itself.
The SPDX identifier is a legally binding shorthand, which can be used
instead of the full boiler plate text.
This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The memory subsystem has already had similar message for it.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Using devm_ioremap_resource() API should actually be preferred over
devm_ioremap(), since the former request the mem region first and then
gives back the ioremap'ed memory pointer.
devm_ioremap_resource() calls request_mem_region(), therby preventing
other drivers to make any overlapping call to the same region.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Individual controller driver has different requirement for wakeup
setting, so move it from core to itself. In order to align with
current etting the default wakeup setting is enabled (except for
chipidea host).
Pass compile test with below commands:
make O=outout/all allmodconfig
make -j$CPU_NUM O=outout/all drivers/usb
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/host/ehci-mv.c:181:26-27: WARNING comparing pointer to 0, suggest !E
/c/kernel-tests/src/cocci/drivers/usb/host/ehci-mv.c:181:26-27: WARNING comparing pointer to 0
Compare pointer-typed values to NULL rather than 0
Semantic patch information:
This makes an effort to choose between !x and x == NULL. !x is used
if it has previously been used with the function used to initialize x.
This relies on type information. More type information can be obtained
using the option -all_includes and the option -I to specify an
include path.
Generated by: coccinelle/null/badzero.cocci
CC: Jingoo Han <jg1.han@samsung.com>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
This reverts commit 3b8d7321ed, which
brings back commit 428aac8a81 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 428aac8a81.
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: Alan Stern <stern@rowland.harvard.edu>
Cc: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
All 4 transfer types can work well on EHCI HCD after switching to run
URB giveback in tasklet context, so mark all HCD drivers to support
it.
Also we don't need to release ehci->lock during URB giveback any more.
>From below test results on 3 machines(2 ARM and one x86), time
consumed by EHCI interrupt handler droped much without performance
loss.
1 test description
1.1 mass storage performance test:
- run below command 10 times and compute the average performance
dd if=/dev/sdN iflag=direct of=/dev/null bs=200M count=1
- two usb mass storage device:
A: sandisk extreme USB 3.0 16G(used in test case 1 & case 2)
B: kingston DataTraveler G2 4GB(only used in test case 2)
1.2 uvc function test:
- run one simple capture program in the below link
http://kernel.ubuntu.com/~ming/up/capture.c
- capture format 640*480 and results in High Bandwidth mode on the
uvc device: Z-Star 0x0ac8/0x3450
- on T410(x86) laptop, also use guvcview to watch video capture/playback
1.3 about test2 and test4
- both two devices involved are tested concurrently by above test items
1.4 how to compute irq time(the time consumed by ehci_irq)
- use trace points of irq:irq_handler_entry and irq:irq_handler_exit
1.5 kernel
3.10.0-rc3-next-20130528
1.6 test machines
Pandaboard A1: ARM CortexA9 dural core
Arndale board: ARM CortexA15 dural core
T410: i5 CPU 2.67GHz quad core
2 test result
2.1 test case1: single mass storage device performance test
--------------------------------------------------------------------
upstream | patched
perf(MB/s)+irq time(us) | perf(MB/s)+irq time(us)
--------------------------------------------------------------------
Pandaboard A1: 25.280(avg:145,max:772) | 25.540(avg:14, max:75)
Arndale board: 29.700(avg:33, max:129) | 29.700(avg:10, max:50)
T410: 34.430(avg:17, max:154*)| 34.660(avg:12, max:155)
---------------------------------------------------------------------
2.2 test case2: two mass storage devices' performance test
--------------------------------------------------------------------
upstream | patched
perf(MB/s)+irq time(us) | perf(MB/s)+irq time(us)
--------------------------------------------------------------------
Pandaboard A1: 15.840/15.580(avg:158,max:1216) | 16.500/16.160(avg:15,max:139)
Arndale board: 17.370/16.220(avg:33 max:234) | 17.480/16.200(avg:11, max:91)
T410: 21.180/19.820(avg:18 max:160) | 21.220/19.880(avg:11, max:149)
---------------------------------------------------------------------
2.3 test case3: one uvc streaming test
- uvc device works well(on x86, luvcview can be used too and has
same result with uvc capture)
--------------------------------------------------------------------
upstream | patched
irq time(us) | irq time(us)
--------------------------------------------------------------------
Pandaboard A1: (avg:445, max:873) | (avg:33, max:44)
Arndale board: (avg:316, max:630) | (avg:20, max:27)
T410: (avg:39, max:107) | (avg:10, max:65)
---------------------------------------------------------------------
2.4 test case4: one uvc streaming plus one mass storage device test
--------------------------------------------------------------------
upstream | patched
perf(MB/s)+irq time(us) | perf(MB/s)+irq time(us)
--------------------------------------------------------------------
Pandaboard A1: 20.340(avg:259,max:1704)| 20.390(avg:24, max:101)
Arndale board: 23.460(avg:124,max:726) | 23.370(avg:15, max:52)
T410: 28.520(avg:27, max:169) | 28.630(avg:13, max:160)
---------------------------------------------------------------------
2.5 test case5: read single mass storage device with small transfer
- run below command 10 times and compute the average speed
dd if=/dev/sdN iflag=direct of=/dev/null bs=4K count=4000
1), test device A:
--------------------------------------------------------------------
upstream | patched
perf(MB/s)+irq time(us) | perf(MB/s)+irq time(us)
--------------------------------------------------------------------
Pandaboard A1: 6.5(avg:21, max:64) | 6.5(avg:10, max:24)
Arndale board: 8.13(avg:12, max:23) | 8.06(avg:7, max:17)
T410: 6.66(avg:13, max:131) | 6.84(avg:11, max:149)
---------------------------------------------------------------------
2), test device B:
--------------------------------------------------------------------
upstream | patched
perf(MB/s)+irq time(us) | perf(MB/s)+irq time(us)
--------------------------------------------------------------------
Pandaboard A1: 5.5(avg:21,max:43) | 5.49(avg:10, max:24)
Arndale board: 5.9(avg:12, max:22) | 5.9(avg:7, max:17)
T410: 5.48(avg:13, max:155) | 5.48(avg:7, max:140)
---------------------------------------------------------------------
* On T410, sometimes read ehci status register in ehci_irq takes more
than 100us, and the problem has been reported on the link:
http://marc.info/?t=137065867300001&r=1&w=2
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d06310
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here is the big Gadget & PHY pull request. Many of us have
been really busy lately getting multiple drivers to a better
position.
Since this pull request is so large, I will divide it in sections
so it's easier to grasp what's included.
- cleanups:
. UDC drivers no longer touch gadget->dev, that's now udc-core
responsibility
. Many more UDC drivers converted to usb_gadget_map/unmap_request()
. UDC drivers no longer initialize DMA-related fields from gadget's
device structure
. UDC drivers don't touch gadget.dev.driver directly
. UDC drivers don't assign gadget.dev.release directly
. Removal of some unused DMA_ADDR_INVALID
. Introduction of CONFIG_USB_PHY
. All phy drivers have been moved to drivers/usb/phy and renamed to
a common naming scheme
. Fix PHY layer so it never returns a NULL pointer, also fix all
callers to avoid using IS_ERR_OR_NULL()
. Sparse fixes all over the place
. drivers/usb/otg/ has been deleted
. Marvel drivers (mv_udc, ehci-mv, mv_otg and mv_u3d) improved clock
usage
- new features:
. UDC core now provides a generic way for tracking and reporting
UDC's state (not attached, resuming, suspended, addressed,
default, etc)
. twl4030-usb learned that it shouldn't be enabled during init
. Full DT support for DWC3 has been implemented
. ab8500-usb learned about pinctrl framework
. nop PHY learned about DeviceTree and regulators
. DWC3 learned about suspend/resume
. DWC3 can now be compiled in host-only and gadget-only (as well as
DRD) configurations
. UVC now enables streaming endpoint based on negotiated speed
. isp1301 now implements the PHY API properly
. configfs-based interface for gadget drivers which will lead to
the removal of all code which just combines functions together
to build functional gadget drivers.
. f_serial and f_obex were converted to new configfs interface while
maintaining old interface around.
- non-critical fixes:
. UVC gadget driver got fixes for Endpoint usage and stream calculation
. ab8500-usb fixed unbalanced clock and regulator API usage
. twl4030-usb got a fix for when OMAP3 is booted with cable connected
. fusb300_udc got a fix for DMA usage
. UVC got fixes for two assertions of the USB Video Class Compliance
specification revision 1.1
. build warning issues caused by recent addition of __must_check to
regulator API
These are all changes which deserve a mention, all other changes are related
to these one or minor spelling fixes and other similar tasks.
Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: patches for v3.10 merge window
Here is the big Gadget & PHY pull request. Many of us have
been really busy lately getting multiple drivers to a better
position.
Since this pull request is so large, I will divide it in sections
so it's easier to grasp what's included.
- cleanups:
. UDC drivers no longer touch gadget->dev, that's now udc-core
responsibility
. Many more UDC drivers converted to usb_gadget_map/unmap_request()
. UDC drivers no longer initialize DMA-related fields from gadget's
device structure
. UDC drivers don't touch gadget.dev.driver directly
. UDC drivers don't assign gadget.dev.release directly
. Removal of some unused DMA_ADDR_INVALID
. Introduction of CONFIG_USB_PHY
. All phy drivers have been moved to drivers/usb/phy and renamed to
a common naming scheme
. Fix PHY layer so it never returns a NULL pointer, also fix all
callers to avoid using IS_ERR_OR_NULL()
. Sparse fixes all over the place
. drivers/usb/otg/ has been deleted
. Marvel drivers (mv_udc, ehci-mv, mv_otg and mv_u3d) improved clock
usage
- new features:
. UDC core now provides a generic way for tracking and reporting
UDC's state (not attached, resuming, suspended, addressed,
default, etc)
. twl4030-usb learned that it shouldn't be enabled during init
. Full DT support for DWC3 has been implemented
. ab8500-usb learned about pinctrl framework
. nop PHY learned about DeviceTree and regulators
. DWC3 learned about suspend/resume
. DWC3 can now be compiled in host-only and gadget-only (as well as
DRD) configurations
. UVC now enables streaming endpoint based on negotiated speed
. isp1301 now implements the PHY API properly
. configfs-based interface for gadget drivers which will lead to
the removal of all code which just combines functions together
to build functional gadget drivers.
. f_serial and f_obex were converted to new configfs interface while
maintaining old interface around.
- non-critical fixes:
. UVC gadget driver got fixes for Endpoint usage and stream calculation
. ab8500-usb fixed unbalanced clock and regulator API usage
. twl4030-usb got a fix for when OMAP3 is booted with cable connected
. fusb300_udc got a fix for DMA usage
. UVC got fixes for two assertions of the USB Video Class Compliance
specification revision 1.1
. build warning issues caused by recent addition of __must_check to
regulator API
These are all changes which deserve a mention, all other changes are related
to these one or minor spelling fixes and other similar tasks.
Signed-of-by: Felipe Balbi <balbi@ti.com>
The origianl understanding of clock is wrong. The EHCI controller
only have one clock input.
Passing clock name by pdata is wrong. The clock is defined by device
iteself.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
CONFIG_USB_OTG_UTILS will be removed very
soon, so we should check CONFIG_USB_PHY
instead.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
finally getting rid of the old ->start()/->stop() methods
in favor of the better and improved ->udc_start()/->udc_stop().
There were surprisingly quite a few users left, but all of them
have been converted.
f_mass_storage removed some dead code, which is always great ;-)
There's also a big cleanup to the gadget framework from Sebastian
which gets us a lot closer to having only function drivers in
kernel and move over to configfs-based binding.
Other than these, there's the usual set of cleanups: s3c UDCs are
moving over to devm_regulator_bulk_get() API, at91_udc removed
an unnecessary check for work_pending() before scheduling and
there's the removal of an unused variable from uac2_pcm_trigger().
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Merge tag 'gadget-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: gadget: patches for v3.9 merge window
finally getting rid of the old ->start()/->stop() methods
in favor of the better and improved ->udc_start()/->udc_stop().
There were surprisingly quite a few users left, but all of them
have been converted.
f_mass_storage removed some dead code, which is always great ;-)
There's also a big cleanup to the gadget framework from Sebastian
which gets us a lot closer to having only function drivers in
kernel and move over to configfs-based binding.
Other than these, there's the usual set of cleanups: s3c UDCs are
moving over to devm_regulator_bulk_get() API, at91_udc removed
an unnecessary check for work_pending() before scheduling and
there's the removal of an unused variable from uac2_pcm_trigger().
the clock common driver changes, and arch-mmp will make use of
the common clock driver instead of its own.
So for enable clock.
first prepare the clock
then enable the clock.
for disable clock
first disable the clock
then unprepare the clock
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The various devm_ functions allocate memory that is released when a driver
detaches. This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.
A new label name is created in one case to better reflect the contents of
the error-handling code.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch (as1564c) converts the EHCI platform drivers to use the
central ehci_setup() routine for generic controller initialization
rather than each having its own idiosyncratic approach.
The major point of difficulty lies in ehci-pci's many vendor- and
device-specific workarounds. Some of them have to be applied before
calling ehci_setup() and some after, which necessitates a fair amount
of code motion. The other platform drivers require much smaller
changes.
One point not addressed by the patch is whether ports should be
powered on or off following initialization. The different drivers
appear to handle this pretty much at random. In fact it shouldn't
matter, because the hub driver turns on power to all ports when it
binds to the root hub. Straightening that out will be left for
another day.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb_get_phy will return -ENODEV if it's not able to find the phy. Hence
fixed all the callers of usb_get_phy to check for this error condition
instead of relying on a non-zero value as success condition.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add a linked list for keeping multiple PHY instances with different
types so that we can have separate USB2 and USB3 PHYs on one single
board. _get_phy_ has been changed so that the controller gets
the transceiver by type. _remove_phy_ has been added to let the phy
be removed from the phy list.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
_transceiver() in otg.c is replaced with _phy. usb_set_transceiver is
replaced with usb_add_phy to make it similar to other usb standard
function names like usb_add_hcd.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This changes the otg functions so that they receive struct
otg instead of struct usb_phy as parameter and
converts all users of these functions to pass the otg member
of their usb_phy.
Includes fixes to IMX code from Sascha Hauer.
[ balbi@ti.com : fixed a compile warning on ehci-mv.c ]
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Acked-by: Li Yang <leoli@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Use the new usb_phy_* functions with transceiver
operations instead of the old otg functions.
Includes fixes from Sascha Hauer.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Acked-by: Li Yang <leoli@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This is the first step in separating USB transceivers from
USB OTG utilities.
Includes fixes to IMX code from Sascha Hauer.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Acked-by: Li Yang <leoli@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch adds support for EHCI compliant HSUSB Host controller found
on Marvell Socs.
It fits both OTG and SPH controller on marvell Socs, including
PXA9xx/MMP2/MMP3/MGx.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
