Commit Graph

24 Commits

Author SHA1 Message Date
Peter Chen
3c9740a117 usb: hcd: move controller wakeup setting initialization to individual driver
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>
2013-12-08 18:06:46 -08:00
Fengguang Wu
2e30d14f12 USB: fix coccinelle warnings
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>
2013-12-04 20:36:31 -08:00
Greg Kroah-Hartman
c04ee4b113 Revert "Revert "USB: EHCI: support running URB giveback in tasklet context""
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>
2013-09-23 13:32:51 -07:00
Greg Kroah-Hartman
3b8d7321ed Revert "USB: EHCI: support running URB giveback in tasklet context"
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>
2013-09-17 09:36:10 -07:00
Ming Lei
428aac8a81 USB: EHCI: support running URB giveback in tasklet context
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>
2013-08-12 11:43:49 -07:00
Jingoo Han
d4f09e28d7 USB: host: use dev_get_platdata()
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>
2013-07-31 17:53:50 -07:00
Jingoo Han
970691ebf0 USB: ehci-mv: remove unnecessary platform_set_drvdata()
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>
2013-05-16 17:47:14 -07:00
Greg Kroah-Hartman
64dc9e2e73 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>
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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>
2013-04-05 15:18:00 -07:00
Chao Xie
b7e159c295 usb: ehci: mv_ehci: remove unused clock
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>
2013-04-02 11:42:46 +03:00
Felipe Balbi
6f3ed4ec18 usb: host: ehci-mv: fix PHY error handling
PHY layer no longer returns NULL. We must
switch from IS_ERR_OR_NULL() to IS_ERR().

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:18:31 +02:00
Felipe Balbi
fcd12b9711 usb: ehci: marvel: check against CONFIG_USB_PHY
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>
2013-03-18 11:18:06 +02:00
Paul Vlase
07cd29d765 usb: Use resource_size function
Signed-off-by: Paul Vlase <vlase.paul@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-15 11:48:09 -07:00
Greg Kroah-Hartman
cba6c85027 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().
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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().
2013-01-25 09:08:05 -08:00
Chao Xie
ab592a74a5 usb: host: ehci-mv: remove unused variable
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>
2013-01-24 21:11:34 +02:00
Chao Xie
c1a96ebd31 usb: host: ehci-mv: fix clk APIs
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>
2012-12-13 11:58:41 +02:00
Julia Lawall
35b55563df drivers/usb/host/ehci-mv.c: use devm_ functions
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>
2012-08-10 12:01:34 -07:00
Alan Stern
1a49e2ac96 EHCI: centralize controller initialization
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>
2012-07-09 13:35:05 -07:00
Kishon Vijay Abraham I
ded017ee6c usb: phy: fix return value check of usb_get_phy
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>
2012-07-02 10:40:49 +03:00
Kishon Vijay Abraham I
662dca54ca usb: otg: support for multiple transceivers by a single controller
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>
2012-06-25 14:05:35 +03:00
Kishon Vijay Abraham I
721002ec1d usb: otg: utils: rename function name in OTG utils
_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>
2012-06-25 14:04:26 +03:00
Heikki Krogerus
6e13c6505c usb: otg: Convert all users to pass struct usb_otg for OTG functions
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>
2012-02-27 15:41:52 +02:00
Heikki Krogerus
b96d3b0836 usb: Convert all users to new usb_phy
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>
2012-02-27 15:41:48 +02:00
Heikki Krogerus
8675381109 usb: otg: Rename otg_transceiver to usb_phy
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>
2012-02-13 13:34:36 +02:00
Neil Zhang
3a082ec9b2 USB: EHCI: Add Marvell Host Controller driver
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>
2011-12-20 12:58:13 +02:00