Commit Graph

169 Commits

Author SHA1 Message Date
Linus Torvalds 033d9959ed Merge branch 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue changes from Tejun Heo:
 "This is workqueue updates for v3.7-rc1.  A lot of activities this
  round including considerable API and behavior cleanups.

   * delayed_work combines a timer and a work item.  The handling of the
     timer part has always been a bit clunky leading to confusing
     cancelation API with weird corner-case behaviors.  delayed_work is
     updated to use new IRQ safe timer and cancelation now works as
     expected.

   * Another deficiency of delayed_work was lack of the counterpart of
     mod_timer() which led to cancel+queue combinations or open-coded
     timer+work usages.  mod_delayed_work[_on]() are added.

     These two delayed_work changes make delayed_work provide interface
     and behave like timer which is executed with process context.

   * A work item could be executed concurrently on multiple CPUs, which
     is rather unintuitive and made flush_work() behavior confusing and
     half-broken under certain circumstances.  This problem doesn't
     exist for non-reentrant workqueues.  While non-reentrancy check
     isn't free, the overhead is incurred only when a work item bounces
     across different CPUs and even in simulated pathological scenario
     the overhead isn't too high.

     All workqueues are made non-reentrant.  This removes the
     distinction between flush_[delayed_]work() and
     flush_[delayed_]_work_sync().  The former is now as strong as the
     latter and the specified work item is guaranteed to have finished
     execution of any previous queueing on return.

   * In addition to the various bug fixes, Lai redid and simplified CPU
     hotplug handling significantly.

   * Joonsoo introduced system_highpri_wq and used it during CPU
     hotplug.

  There are two merge commits - one to pull in IRQ safe timer from
  tip/timers/core and the other to pull in CPU hotplug fixes from
  wq/for-3.6-fixes as Lai's hotplug restructuring depended on them."

Fixed a number of trivial conflicts, but the more interesting conflicts
were silent ones where the deprecated interfaces had been used by new
code in the merge window, and thus didn't cause any real data conflicts.

Tejun pointed out a few of them, I fixed a couple more.

* 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (46 commits)
  workqueue: remove spurious WARN_ON_ONCE(in_irq()) from try_to_grab_pending()
  workqueue: use cwq_set_max_active() helper for workqueue_set_max_active()
  workqueue: introduce cwq_set_max_active() helper for thaw_workqueues()
  workqueue: remove @delayed from cwq_dec_nr_in_flight()
  workqueue: fix possible stall on try_to_grab_pending() of a delayed work item
  workqueue: use hotcpu_notifier() for workqueue_cpu_down_callback()
  workqueue: use __cpuinit instead of __devinit for cpu callbacks
  workqueue: rename manager_mutex to assoc_mutex
  workqueue: WORKER_REBIND is no longer necessary for idle rebinding
  workqueue: WORKER_REBIND is no longer necessary for busy rebinding
  workqueue: reimplement idle worker rebinding
  workqueue: deprecate __cancel_delayed_work()
  workqueue: reimplement cancel_delayed_work() using try_to_grab_pending()
  workqueue: use mod_delayed_work() instead of __cancel + queue
  workqueue: use irqsafe timer for delayed_work
  workqueue: clean up delayed_work initializers and add missing one
  workqueue: make deferrable delayed_work initializer names consistent
  workqueue: cosmetic whitespace updates for macro definitions
  workqueue: deprecate system_nrt[_freezable]_wq
  workqueue: deprecate flush[_delayed]_work_sync()
  ...
2012-10-02 09:54:49 -07:00
Linus Torvalds 61464c8357 ARM: soc: general cleanups
This is a large branch that contains a handful of different cleanups:
 
 - Fixing up the I/O space remapping on PCI on ARM. This is a series
   from Rob Herring that restructures how all pci devices allocate I/O
   space, and it's part of the work to allow multiplatform kernels.
 - A number of cleanup series for OMAP, moving and removing some
   headers, sparse irq rework and in general preparation for
   multiplatform.
 - Final removal of all non-DT boards for Tegra, it is now
   device-tree-only!
 - Removal of a stale platform, nxp4008. It's an old mobile chipset
   that is no longer in use, and was very likely never really used with
   a mainline kernel. We have not been able to find anyone interested
   in keeping it around in the kernel.
 - Removal of the legacy dmaengine driver on tegra
 
 + A handful of other things that I haven't described above.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM soc general cleanups from Olof Johansson:
 "This is a large branch that contains a handful of different cleanups:

   - Fixing up the I/O space remapping on PCI on ARM.  This is a series
     from Rob Herring that restructures how all pci devices allocate I/O
     space, and it's part of the work to allow multiplatform kernels.
   - A number of cleanup series for OMAP, moving and removing some
     headers, sparse irq rework and in general preparation for
     multiplatform.
   - Final removal of all non-DT boards for Tegra, it is now
     device-tree-only!
   - Removal of a stale platform, nxp4008.  It's an old mobile chipset
     that is no longer in use, and was very likely never really used
     with a mainline kernel.  We have not been able to find anyone
     interested in keeping it around in the kernel.
   - Removal of the legacy dmaengine driver on tegra

  + A handful of other things that I haven't described above."

Fix up some conflicts with the staging tree (and because nxp4008 was
removed)

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (184 commits)
  ARM: OMAP2+: serial: Change MAX_HSUART_PORTS to 6
  ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus
  ARM: mmp: using for_each_set_bit to simplify the code
  ARM: tegra: harmony: fix ldo7 regulator-name
  ARM: OMAP2+: Make omap4-keypad.h local
  ARM: OMAP2+: Make l4_3xxx.h local
  ARM: OMAP2+: Make l4_2xxx.h local
  ARM: OMAP2+: Make l3_3xxx.h local
  ARM: OMAP2+: Make l3_2xxx.h local
  ARM: OMAP1: Move irda.h from plat to mach
  ARM: OMAP2+: Make hdq1w.h local
  ARM: OMAP2+: Make gpmc-smsc911x.h local
  ARM: OMAP2+: Make gpmc-smc91x.h local
  ARM: OMAP1: Move flash.h from plat to mach
  ARM: OMAP2+: Make debug-devices.h local
  ARM: OMAP1: Move board-voiceblue.h from plat to mach
  ARM: OMAP1: Move board-sx1.h from plat to mach
  ARM: OMAP2+: Make omap-wakeupgen.h local
  ARM: OMAP2+: Make omap-secure.h local
  ARM: OMAP2+: Make ctrl_module_wkup_44xx.h local
  ...
2012-10-01 18:19:05 -07:00
Tony Lindgren 70c494c312 ARM: OMAP1: Make plat/mux.h omap1 only
We are moving omap2+ to use the device tree based pinctrl-single.c
and will be removing the old mux framework. This will remove the
omap1 specific parts from plat-omap.

Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-usb@vger.kernel.org
Cc: linux-pcmcia@lists.infradead.org
Cc: spi-devel-general@lists.sourceforge.net
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-09-20 14:54:57 -07:00
Mike Thompson 363366cf61 usb: otg: mxs-phy: Fix mx23 operation
Currently mx23 fails to enumerate a USB device:

[ 1.300000] hub 1-0:1.0: unable to enumerate USB device on port 1
[ 1.520000] hub 1-0:1.0: unable to enumerate USB device on port 1
[ 1.740000] hub 1-0:1.0: unable to enumerate USB device on port 1
[ 1.960000] hub 1-0:1.0: unable to enumerate USB device on port 1
[ 2.180000] hub 1-0:1.0: unable to enumerate USB device on port 1

Use a kernel workqueue to asynchronously delay the setting of
ENHOSTDISCONDETECT bit until after higher level hub connect/reset processing
is complete.  Prematurely setting the bit prevents the connection
processing from completing and not setting it prevents disconnect from being
detected. No delay is needed for clearing of ENHOSTDISCONDETECT.

Successfully tested on mx23-olinuxino (micro, mini and maxi variants) and mx28evk.

Cc: stable@vger.kernel.org # v3.6
Signed-off-by: Mike Thompson <mpthompson@gmail.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-09-10 19:46:38 +03:00
Wei Yongjun 58add6ca84 usb: otg: move the dereference below the NULL test
The dereference should be moved below the NULL test.

spatch with a semantic match is used to found this.
(http://coccinelle.lip6.fr/)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-09-10 19:26:14 +03:00
Kishon Vijay Abraham I f8515f0639 usb: twl4030: Add device tree support for twl4030 usb
Add device tree support for twl4030 usb driver.
Update the Documentation with device tree binding information.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-09-06 20:16:07 +03:00
Kishon Vijay Abraham I ff0a1f3940 usb: twl6030: Add dt support for twl6030 usb
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-09-06 20:16:07 +03:00
Kishon Vijay Abraham I 0e98de67ba usb: otg: make twl6030_usb as a comparator driver to omap_usb2
All the PHY configuration other than VBUS, ID GND and OTG SRP are removed
from twl6030. The phy configurations are taken care by the dedicated
usb2 phy driver. So twl6030 is made as comparator driver for VBUS and
ID detection.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-09-06 20:15:59 +03:00
Tejun Heo 43829731dd workqueue: deprecate flush[_delayed]_work_sync()
flush[_delayed]_work_sync() are now spurious.  Mark them deprecated
and convert all users to flush[_delayed]_work().

If you're cc'd and wondering what's going on: Now all workqueues are
non-reentrant and the regular flushes guarantee that the work item is
not pending or running on any CPU on return, so there's no reason to
use the sync flushes at all and they're going away.

This patch doesn't make any functional difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Mattia Dongili <malattia@linux.it>
Cc: Kent Yoder <key@linux.vnet.ibm.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Bryan Wu <bryan.wu@canonical.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-wireless@vger.kernel.org
Cc: Anton Vorontsov <cbou@mail.ru>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Petr Vandrovec <petr@vandrovec.name>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Avi Kivity <avi@redhat.com>
2012-08-20 14:51:24 -07:00
Shubhrajyoti D df6791d704 usb: otg: Remove the unneeded NULL check
The function usb_add_phy trusts the sanity of the caller.
Also it accesses x after the NULL check.
Remove the unneeded check.

Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-08-09 14:36:58 +03:00
Felipe Balbi c84d364f81 usb: xceiv: nop: let it work as USB2 and USB3 phy
We add a platform_data to pass the desired mode
for the nop-xceiv so it can work on USB2 and USB3
modes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-08-03 09:36:19 +03:00
Felipe Balbi 78c289f876 usb: xceiv: create nop-usb-xceiv.h and avoid pollution on otg.h
nop-usb-xceiv was polluting otg.h with its own
function prototypes. Move those prototypes to
a nop-usb-xceiv.h header.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-08-03 09:36:18 +03:00
Linus Torvalds 3e9a97082f This patch series contains a major revamp of how we collect entropy
from interrupts for /dev/random and /dev/urandom.  The goal is to
 addresses weaknesses discussed in the paper "Mining your Ps and Qs:
 Detection of Widespread Weak Keys in Network Devices", by Nadia
 Heninger, Zakir Durumeric, Eric Wustrow, J. Alex Halderman, which will
 be published in the Proceedings of the 21st Usenix Security Symposium,
 August 2012.  (See https://factorable.net for more information and an
 extended version of the paper.)
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Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random

Pull random subsystem patches from Ted Ts'o:
 "This patch series contains a major revamp of how we collect entropy
  from interrupts for /dev/random and /dev/urandom.

  The goal is to addresses weaknesses discussed in the paper "Mining
  your Ps and Qs: Detection of Widespread Weak Keys in Network Devices",
  by Nadia Heninger, Zakir Durumeric, Eric Wustrow, J.  Alex Halderman,
  which will be published in the Proceedings of the 21st Usenix Security
  Symposium, August 2012.  (See https://factorable.net for more
  information and an extended version of the paper.)"

Fix up trivial conflicts due to nearby changes in
drivers/{mfd/ab3100-core.c, usb/gadget/omap_udc.c}

* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: (33 commits)
  random: mix in architectural randomness in extract_buf()
  dmi: Feed DMI table to /dev/random driver
  random: Add comment to random_initialize()
  random: final removal of IRQF_SAMPLE_RANDOM
  um: remove IRQF_SAMPLE_RANDOM which is now a no-op
  sparc/ldc: remove IRQF_SAMPLE_RANDOM which is now a no-op
  [ARM] pxa: remove IRQF_SAMPLE_RANDOM which is now a no-op
  board-palmz71: remove IRQF_SAMPLE_RANDOM which is now a no-op
  isp1301_omap: remove IRQF_SAMPLE_RANDOM which is now a no-op
  pxa25x_udc: remove IRQF_SAMPLE_RANDOM which is now a no-op
  omap_udc: remove IRQF_SAMPLE_RANDOM which is now a no-op
  goku_udc: remove IRQF_SAMPLE_RANDOM which was commented out
  uartlite: remove IRQF_SAMPLE_RANDOM which is now a no-op
  drivers: hv: remove IRQF_SAMPLE_RANDOM which is now a no-op
  xen-blkfront: remove IRQF_SAMPLE_RANDOM which is now a no-op
  n2_crypto: remove IRQF_SAMPLE_RANDOM which is now a no-op
  pda_power: remove IRQF_SAMPLE_RANDOM which is now a no-op
  i2c-pmcmsp: remove IRQF_SAMPLE_RANDOM which is now a no-op
  input/serio/hp_sdc.c: remove IRQF_SAMPLE_RANDOM which is now a no-op
  mfd: remove IRQF_SAMPLE_RANDOM which is now a no-op
  ...
2012-07-31 19:07:42 -07:00
Linus Torvalds 9fc377799b USB patches for 3.6-rc1
Here's the big USB patch set for the 3.6-rc1 merge window.
 
 Lots of little changes in here, primarily for gadget controllers and drivers.
 There's some scsi changes that I think also went in through the scsi tree, but
 they merge just fine.  All of these patches have been in the linux-next tree
 for a while now.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB patches from Greg Kroah-Hartman:
 "Here's the big USB patch set for the 3.6-rc1 merge window.

  Lots of little changes in here, primarily for gadget controllers and
  drivers.  There's some scsi changes that I think also went in through
  the scsi tree, but they merge just fine.  All of these patches have
  been in the linux-next tree for a while now.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

Fix up trivial conflicts in include/scsi/scsi_device.h (same libata
conflict that Jeff had already encountered)

* tag 'usb-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (207 commits)
  usb: Add USB_QUIRK_RESET_RESUME for all Logitech UVC webcams
  usb: Add quirk detection based on interface information
  usb: s3c-hsotg: Add header file protection macros in s3c-hsotg.h
  USB: ehci-s5p: Add vbus setup function to the s5p ehci glue layer
  USB: add USB_VENDOR_AND_INTERFACE_INFO() macro
  USB: notify phy when root hub port connect change
  USB: remove 8 bytes of padding from usb_host_interface on 64 bit builds
  USB: option: add ZTE MF821D
  USB: sierra: QMI mode MC7710 moved to qcserial
  USB: qcserial: adding Sierra Wireless devices
  USB: qcserial: support generic Qualcomm serial ports
  USB: qcserial: make probe more flexible
  USB: qcserial: centralize probe exit path
  USB: qcserial: consolidate usb_set_interface calls
  USB: ehci-s5p: Add support for device tree
  USB: ohci-exynos: Add support for device tree
  USB: ehci-omap: fix compile failure(v1)
  usb: host: tegra: pass correct pointer in ehci_setup()
  USB: ehci-fsl: Update ifdef check to work on 64-bit ppc
  USB: serial: keyspan: Removed unrequired parentheses.
  ...
2012-07-26 10:23:47 -07:00
Theodore Ts'o 34e4cc40a0 isp1301_omap: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Felipe Balbi <balbi@ti.com>
2012-07-19 10:40:14 -04:00
Richard Zhao b3d9968122 usb: otg: add basic mxs phy driver support
mxs phy is used in Freescale i.MX SoCs, for example
imx23, imx28, imx6Q. This patch adds the basic host
support.

Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Peter Chen <peter.chen@freescale.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Subodh Nijsure <snijsure@grid-net.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-09 09:59:23 -07:00
Kishon Vijay Abraham I 277bd8746b drivers: usb: otg: fix build break in twl6030-usb.c
Fixed a mistake in the merge conflict resoultion commit(ff9cce) in file
twl6030-usb.c

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-09 09:46:51 -07:00
Greg Kroah-Hartman ff9cce8277 usb: phy: patches for v3.6 merge window
We are starting to support multiple USB phys as
 we should thanks for Kishon's work. DeviceTree support
 for USB PHYs won't come until discussion with DeviceTree
 maintainer is finished.
 
 Together with that series, we have one fix for twl4030
 which missed a IRQF_ONESHOT annotation when requesting
 a threaded IRQ without a top half handler, and removal
 of an unused variable compilation warning to isp1301_omap.
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Merge tag 'xceiv-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

usb: phy: patches for v3.6 merge window

We are starting to support multiple USB phys as
we should thanks for Kishon's work. DeviceTree support
for USB PHYs won't come until discussion with DeviceTree
maintainer is finished.

Together with that series, we have one fix for twl4030
which missed a IRQF_ONESHOT annotation when requesting
a threaded IRQ without a top half handler, and removal
of an unused variable compilation warning to isp1301_omap.
2012-07-05 15:35:41 -07:00
Arnd Bergmann 1fe4061864 Here is some more omap clean-up. The biggest changes are
hwmod, clock, and System Control Module cleanup, and the removal
 of the last instance of omap_read/write usage for omap2+ with
 the removal of unused USB OHCI Full Speed driver support. The
 removed OHCI is only currently used for omap1 as the actively
 used omap2+ boards have either MUSB or another instance of
 OHCI+EHCI that's more usable.
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Merge tag 'omap-cleanup-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup

From Tony Lindgren <tony@atomide.com>

Here is some more omap clean-up. The biggest changes are
hwmod, clock, and System Control Module cleanup, and the removal
of the last instance of omap_read/write usage for omap2+ with
the removal of unused USB OHCI Full Speed driver support. The
removed OHCI is only currently used for omap1 as the actively
used omap2+ boards have either MUSB or another instance of
OHCI+EHCI that's more usable.

* tag 'omap-cleanup-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: hwmod: remove prm_clkdm, cm_clkdm; allow hwmods to have no clockdomain
  ARM: OMAP3: Move McBSP fck clock alias to hwmod data
  ARM: OMAP2: Move McBSP fck clock alias to hwmod data for OMAP2430
  ARM: OMAP2: Move McBSP fck clock alias to hwmod data for OMAP2420
  ARM: OMAP: dsp: interface to control module functions
  ARM: OMAP2+: control: new APIs to configure boot address and mode
  ARM: OMAP2+: CLEANUP: Remove ARCH_OMAPx ifdef from struct dpll_data
  ARM: OMAP2+: hwmod: use init-time function pointer for _init_clkdm
  ARM: OMAP2+: hwmod: use init-time function pointer for hardreset
  ARM: OMAP2+: hwmod: use init-time function pointer for wait_target_ready
  ARM: OMAP4: hwmod: drop extra cpu_is check from _wait_target_disable()
  ARM: OMAP2+: hwmod: use init-time function ptrs for enable/disable module
  ARM: OMAP4: hwmod: rename _enable_module to _omap4_enable_module()
  ARM: OMAP: Make FS USB omap1 only
  ARM: OMAP2: Remove legacy USB FS support
  ARM: OMAP3: There is no FS USB controller on omap3
  ARM: OMAP: dma: Clear status registers on enable/disable irq

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-03 21:54:55 +02:00
Kishon Vijay Abraham I f8ecf82948 usb: phy: fix error handling in usb_get_phy
spin_unlock_irqrestore() was not being called in the error path of
usb_get_phy. It's fixed here.

Reported-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-07-02 10:41:00 +03:00
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 b8a3efa3a3 usb: otg: twl: use devres API to allocate resources
used devres API while allocating memory resource in twl4030 and twl6030
so that these resources are released automatically on driver detach.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-06-25 14:08:53 +03:00
Kishon Vijay Abraham I c83a8542b5 usb: musb: move otg specific initializations from twl to glue
Moved otg specific state(OTG_STATE_B_IDLE, OTG_STATE_A_IDLE) initializations
from twl to glue. These initializations are removed from twl4030 and
twl6030 and moved to the mailbox API defined in glue.
This is part of the cleanup in preparation to make use of usb2 phy
driver.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-06-25 14:08:42 +03:00
Kishon Vijay Abraham I c9721438c0 usb: musb: twl: use mailbox API to send VBUS or ID events
The atomic notifier from twl4030/twl6030 to notifiy VBUS and ID events,
is replaced by a direct call to omap musb blue.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-06-25 14:07:39 +03:00
Kishon Vijay Abraham I 410219dcd2 usb: otg: utils: devres: Add API's to associate a device with the phy
Used devres API's to associate the phy with a device so that on
driver detach, release function is invoked on the devres data(usb_phy)
and devres data(usb_phy) is released.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-06-25 14:06:16 +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
Moiz Sonasath dc8738d95b usb: otg: twl6030-usb: Fix twl writes
There were mistakes in writing to few twl
registers. There was interchange in the
parameters being passed to twl6030_writeb().

Signed-off-by: Moiz Sonasath <m-sonasath@ti.com>
Signed-off-by: Ruslan Bilovol <ruslan.bilovol@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-06-22 13:12:06 +03:00
Felipe Balbi 6b03b13336 usb: otg: twl: add missing IRQF_ONESHOT
this patch fixes the following warning:

[    2.825378] genirq: Threaded irq requested \
	with handler=NULL and !ONESHOT for irq 363

Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-06-14 13:27:12 +03:00
Paul Walmsley 79d6680f01 usb: otg: isp1301_omap: resolve unused variable warning from gcc
Resolve this build warning:

drivers/usb/otg/isp1301_omap.c: In function 'isp1301_set_peripheral':
drivers/usb/otg/isp1301_omap.c:1340:6: warning: unused variable 'l'

This shows up when building with the 'omap1_defconfig' and
'5912osk_testconfig' configs from git://git.pwsan.com/omap_kconfigs.

Compile-tested only.

Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-06-04 19:26:00 +03:00
Tony Lindgren b924b20470 ARM: OMAP: Make FS USB omap1 only
As the FS USB code is not being actively used for omap2+
there's no point keeping it around for omap2+.

Let's make the FS USB platform init code omap1 only so
we can remove the last user of omap_read/write for omap2+,
and simplify things for further USB, DMA, and device tree
related work.

While at it, also group the mach includes for the related
drivers.

Cc: linux-usb@vger.kernel.org
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-04 00:57:57 -07:00
Shinya Kuribayashi 7cbb062ade USB: gpio_vbus: wakeup support on GPIO VBUS interrupts
We'd like to see the system waking up from the system-wide suspend
when it gets plugged-in, or the USB cable is pulled out.

Also makes it configurable via platform data 'wakeup'.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-17 11:20:34 -07:00
Shinya Kuribayashi ec1ac6e169 USB: gpio_vbus: a missing cancellation of workqueue in remove() function
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-17 11:20:34 -07:00
Shinya Kuribayashi c8240c1b81 USB: gpio_vbus: handle IRQ flags properly
Currently, 'res->flags' handlings are wrong in three respects:
* the driver _modifies_ the contents of platform data
* res->flags is set up, but not used anywhere in the driver
* request_irq() always takes VBUS_IRQ_FLAGS, regardless of refs->flags

This patch tries to fix this with a policy: If a platform IRQ resource
is available, give preference to its IRQ flag(s) over a default one
(VBUS_IRQ_FLAGS).

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-17 11:20:34 -07:00
Shinya Kuribayashi da020b49fa USB: gpio_vbus: remove IRQF_SAMPLE_RANDOM use
IRQF_SAMPLE_RANDOM has been scheduled for removal for years (it was
scheduled by July 2009, but not yet remvoed).

I'm not sure when it's going to take place, but would be better to
remove it now.  Thanks for scripts/checkpatch secretary.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-17 11:20:34 -07:00
Shinya Kuribayashi 123bbceebe USB: gpio_vbus: use cached IRQ number for consistency with the probed one
gpio_vbus is designed to be able to get an IRQ number for VBUS change
interrupt either (1) through platform_get_resource(IORESOURCE_IRQ) or
(2) by processing gpio_to_irq(pdata->gpio_vbus), in probe() function.

On the other hand, gpio_vbus_set_peripheral() and gpio_vbus_remove()
are always doing gpio_to_irq(pdata->gpio_vbus) to get an IRQ number.

This is not just inconsistent, but also broken.  There is no guarantee
that an IRQ number obtained by platform_get_resource() is equal to
gpio_to_irq(pdata->gpio_vbus).

Cache an IRQ number in probe() function, and use it where necessary.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-17 11:20:34 -07:00
Ming Lei 8f9d973a0d USB: twl6030-usb: pass IRQF_ONESHOT to request_threaded_irq
The flag of IRQF_ONESHOT should be passed to request_threaded_irq,
otherwise the following failure message will be dumped because
hardware handler is defined as NULL:

[    2.271148] genirq: Threaded irq requested with handler=NULL and
!ONESHOT for irq 356
[    2.279541] twl6030_usb twl6030_usb: can't get IRQ 356, err -22
[    2.285919] twl6030_usb: probe of twl6030_usb failed with error -22

The patch fixes the twl6030-usb probe failure.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-17 09:49:23 -07:00
Shinya Kuribayashi e44694e858 USB: gpio_vbus: avoid consecutive vbus_session calls with the same "is_active"
Basically, ->vbus_session() calls should be served when VBUS session
starts and ends (it's not whenever transciever drivers detect VBUS
_changes_).  Otherwise, if UDC gadget drivers don't want for some
reason ->vbus_session() calls with the same "is_active" value, either
OTG or UDC drivers need to have some protection handlings.

Also, on platforms using this 'gpio_vbus' driver, the driver is only
allowed to check whether VBUS is applied.  There is no kernel-standard
way prepared for UDC gadget drivers to do that.

With this in mind, gpio_vbus should try to prevent unnecessary
consecutive vbus_session calls being served with the same "in_active"
value.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-14 09:02:23 -07:00
Shinya Kuribayashi a6dc9cf76b USB: gpio_vbus: put a missing regulator_put() on error
Note that regulator_put() doesn't care about whether ->vbus_draw is
valid or not.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-14 09:02:23 -07:00
Shinya Kuribayashi 934ccec4da USB: gpio_vbus: provide an appropriate debounce interval
In commit c2344f13b5 (USB: gpio_vbus:
add delayed vbus_session calls, 2009-01-24), usb_gadget_vbus_connect()
and ...disconnect() were extracted from the interrupt handler, so to
allow vbus_session handlers to deal with msleep() calls.

This patch takes the approach one step further.

USB2.0 specification (7.1.7.3 Connect and Disconnect Signaling) says
that the USB system software (shall) provide a debounce interval with
a minimum duration of 100 ms, which ensures that the electrical and
mechanical connection is stable before software attempts to reset
the attached device.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-14 09:01:50 -07:00
Shinya Kuribayashi 0d13eebcab USB: gpio_vbus: fix inconsistent 'dev_id' parameters at free_irq()
'dev_id' has to be the same with the one passed to request_irq().

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-14 09:01:50 -07:00
Heiko Stübner 662c738d99 usb: otg: gpio_vbus: Add otg transceiver events and notifiers
Commit 9ad63986c6 (pda_power: Add support for using otg transceiver events)
converted the pda-power driver to use otg events to determine the status
of the power supply.

As gpio-vbus didn't use otg events until now, this change breaks setups
of pda-power with a gpio-vbus transceiver.

This patch adds the necessary otg events and notifiers to gpio-vbus.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Dima Zavin <dima@android.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-04-12 14:59:41 +03:00
Dan Carpenter 5f0b3f9998 usb: otg: ab8500-usb: make probe() work again
The probe() function will always fail because we're testing the wrong
variable.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-02 16:22:11 -08:00
Greg Kroah-Hartman 8062d94a54 Here we have a big rework done by Heikki Krogerus (thanks) which
splits OTG functionality away from transceivers.
 
 We have known for quite a long time that struct otg_transceiver was
 a bad name for the structure, considering transceiver is far from
 being OTG-specific (see 4e67185).
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Merge tag 'xceiv-for-v3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

USB: transceiver changes for 3.4

Here we have a big rework done by Heikki Krogerus (thanks) which
splits OTG functionality away from transceivers.

We have known for quite a long time that struct otg_transceiver was
a bad name for the structure, considering transceiver is far from
being OTG-specific (see 4e67185).
2012-03-01 08:45:33 -08:00
Heikki Krogerus b1c711d629 usb: otg: mv_otg: Start using struct usb_otg
Use struct usb_otg members with OTG specific functions instead
of usb_phy members.

[ balbi@ti.com : fixed a compile error on isp1704_charger.c ]

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-27 15:41:22 +02:00
Heikki Krogerus 298b083cf9 usb: otg: ulpi: Start using struct usb_otg
Use struct usb_otg members with OTG specific functions instead
of usb_phy members.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-13 13:35:56 +02:00
Heikki Krogerus 46b8f6b0eb usb: otg: twl6030: Start using struct usb_otg
Use struct usb_otg members with OTG specific functions instead
of usb_phy members.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Hema HK <hemahk@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-13 13:35:51 +02:00
Heikki Krogerus 74d4aa4419 usb: otg: twl4030: Start using struct usb_otg
Use struct usb_otg members with OTG specific functions instead
of usb_phy members.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-13 13:35:46 +02:00
Heikki Krogerus 41adf10933 usb: otg: nop: Start using struct usb_otg
Use struct usb_otg members with OTG specific functions instead
of usb_phy members.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-13 13:35:41 +02:00
Heikki Krogerus 1d4c9293ae usb: otg: msm: Start using struct usb_otg
Use struct usb_otg members with OTG specific functions instead
of usb_phy members.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-13 13:35:38 +02:00