1. 08 10月, 2010 1 次提交
  2. 15 7月, 2010 1 次提交
  3. 16 12月, 2009 1 次提交
  4. 23 9月, 2009 1 次提交
  5. 10 9月, 2009 2 次提交
  6. 27 11月, 2008 1 次提交
  7. 08 10月, 2008 5 次提交
  8. 22 8月, 2008 1 次提交
    • A
      USB: automatically enable RHSC interrupts · b5fb454f
      Alan Stern 提交于
      This patch (as1069c) changes the way OHCI root-hub status-change
      interrupts are enabled.  Currently a special HCD method,
      hub_irq_enable(), is called when the hub driver is finished using a
      root hub.  This approach turns out to be subject to races, resulting
      in unnecessary polling.
      
      The patch does away with the method entirely.  Instead, the driver
      automatically enables the RHSC interrupt when no more status changes
      are present.  This scheme is safe with controllers using
      level-triggered semantics for their interrupt flags.
      Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      b5fb454f
  9. 07 8月, 2008 3 次提交
  10. 07 7月, 2008 1 次提交
  11. 16 6月, 2008 1 次提交
  12. 25 4月, 2008 3 次提交
    • A
      USB: don't explicitly reenable root-hub status interrupts · e8721549
      Alan Stern 提交于
      This patch (as1069b) changes the way OHCI root-hub status-change
      interrupts are enabled.  Currently a special HCD method,
      hub_irq_enable(), is called when the hub driver is finished using a
      root hub.  This approach turns out to be subject to races, resulting
      in unnecessary polling.
      
      The patch does away with the method entirely.  Instead, the driver
      automatically enables the RHSC interrupt when no more status changes
      are present.  This scheme is safe with controllers using
      level-triggered semantics for their interrupt flags.
      Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      e8721549
    • A
      USB: OHCI: host-controller resumes leave root hub suspended · 43bbb7e0
      Alan Stern 提交于
      Drivers in the ohci-hcd family should perform certain tasks whenever
      their controller device is resumed.  These include checking for loss
      of power during suspend, turning on port power, and enabling interrupt
      requests.
      
      Until now these jobs have been carried out when the root hub is
      resumed, not when the controller is.  Many drivers work around the
      resulting awkwardness by automatically resuming their root hub
      whenever the controller is resumed.  But this is wasteful and
      unnecessary.
      
      To simplify the situation, this patch (as1066) adds a new core
      routine, ohci_finish_controller_resume(), which can be used by all the
      OHCI-variant drivers.  They can call the new routine instead of
      resuming their root hubs.  And ohci-pci.c can call it instead of using
      its own special-purpose handler.
      Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      43bbb7e0
    • A
      USB: remove dev->power.power_state · 70a1c9e0
      Alan Stern 提交于
      power.power_state is scheduled for removal.  This patch (as1053)
      removes all uses of that field from drivers/usb.  Almost all of them
      were write-only, the most significant exceptions being sl811-hcd.c and
      u132-hcd.c.
      
      Part of this patch was written by Pavel Machek.
      Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
      Cc: David Brownell <david-b@pacbell.net>
      Acked-by: NPavel Machek <pavel@ucw.cz>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      
      70a1c9e0
  13. 11 4月, 2008 1 次提交
  14. 26 1月, 2008 1 次提交
  15. 22 4月, 2007 1 次提交
    • E
      [ARM] 4304/1: removes the unnecessary bit number from CKENnn_XXXX · 7053acbd
      Eric Miao 提交于
      This patch removes the unnecessary bit number from CKENnn_XXXX
      definitions for PXA, so that
      
      	CKEN0_PWM0 --> CKEN_PWM0
      	CKEN1_PWM1 --> CKEN_PWM1
      	...
      	CKEN24_CAMERA --> CKEN_CAMERA
      
      The reasons for the change of these defitions are:
      
      1. they do not scale - they are currently valid for pxa2xx, but
      definitely not valid for pxa3xx, e.g., pxa3xx has bit 3 for camera
      instead of bit 24
      
      2. they are unnecessary - the peripheral name within the definition
      has already announced its usage, we don't need those bit numbers
      to know which peripheral we are going to enable/disable clock for
      
      3. they are inconvenient - think about this: a driver programmer
      for pxa has to remember which bit in the CKEN register to turn
      on/off
      
      Another change in the patch is to make the definitions equal to its
      clock bit index, so that
      
         #define CKEN_CAMERA  (24)
      
      instead of
      
         #define CKEN_CAMERA  (1 << 24)
      
      this change, however, will add a run-time bit shift operation in
      pxa_set_cken(), but the benefit of this change is that it scales
      when bit index exceeds 32, e.g., pxa3xx has two registers CKENA
      and CKENB, totally 64 bit for this, suppose CAMERA clock enabling
      bit is CKENB:10, one can simply define CKEN_CAMERA to be (32 + 10)
      and so that pxa_set_cken() need minimum change to adapt to that.
      Signed-off-by: Neric miao <eric.y.miao@gmail.com>
      Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
      7053acbd
  16. 08 2月, 2007 1 次提交
  17. 21 12月, 2006 1 次提交
  18. 28 9月, 2006 2 次提交
    • A
      USB: Properly unregister reboot notifier in case of failure in ehci hcd · 64a21d02
      Aleksey Gorelov 提交于
      If some problem occurs during ehci startup, for instance, request_irq fails,
      echi hcd driver tries it best to cleanup, but fails to unregister reboot
      notifier, which in turn leads to crash on reboot/poweroff.
      
      The following patch resolves this problem by not using reboot notifiers
      anymore, but instead making ehci/ohci driver get its own shutdown method.  For
      PCI, it is done through pci glue, for everything else through platform driver
      glue.
      
      One downside: sa1111 does not use platform driver stuff, and does not have its
      own shutdown hook, so no 'shutdown' is called for it now.  I'm not sure if it
      is really necessary on that platform, though.
      Signed-off-by: NAleks Gorelov <dared1st@yahoo.com>
      Cc: Alan Stern <stern@rowland.harvard.edu>
      Cc: David Brownell <david-b@pacbell.net>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      64a21d02
    • D
      USB: OHCI avoids root hub timer polling · d413984a
      David Brownell 提交于
      This teaches OHCI to use the root hub status change (RHSC) IRQ, bypassing
      root hub timers most of the time and switching over to the "new" root hub
      polling scheme.  It's complicated by the fact that implementations of OHCI
      trigger and ack that IRQ differently (the spec is vague there).
      
      Avoiding root hub timers helps mechanisms like "dynamic tick" leave the
      CPU in lowpower modes for longer intervals.
      Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      d413984a
  19. 03 7月, 2006 1 次提交
  20. 09 6月, 2006 1 次提交
  21. 05 1月, 2006 3 次提交
  22. 10 11月, 2005 1 次提交
  23. 31 10月, 2005 1 次提交
    • T
      [PATCH] fix missing includes · 4e57b681
      Tim Schmielau 提交于
      I recently picked up my older work to remove unnecessary #includes of
      sched.h, starting from a patch by Dave Jones to not include sched.h
      from module.h. This reduces the number of indirect includes of sched.h
      by ~300. Another ~400 pointless direct includes can be removed after
      this disentangling (patch to follow later).
      However, quite a few indirect includes need to be fixed up for this.
      
      In order to feed the patches through -mm with as little disturbance as
      possible, I've split out the fixes I accumulated up to now (complete for
      i386 and x86_64, more archs to follow later) and post them before the real
      patch.  This way this large part of the patch is kept simple with only
      adding #includes, and all hunks are independent of each other.  So if any
      hunk rejects or gets in the way of other patches, just drop it.  My scripts
      will pick it up again in the next round.
      Signed-off-by: NTim Schmielau <tim@physik3.uni-rostock.de>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      4e57b681
  24. 30 10月, 2005 1 次提交
  25. 29 10月, 2005 4 次提交
    • A
      [PATCH] USB: Rename hcd->hub_suspend to hcd->bus_suspend · 0c0382e3
      Alan Stern 提交于
      This patch (as580) is perhaps the only result from the long discussion I
      had with David about his changes to the root-hub suspend/resume code.  It
      renames the hub_suspend and hub_resume methods in struct usb_hcd to
      bus_suspend and bus_resume.  These are more descriptive names, since the
      methods really do suspend or resume an entire USB bus, and less likely to
      be confused with the hub_suspend and hub_resume routines in hub.c.
      
      It also takes David's advice about removing the layer of bus glue, where
      those methods are called.  And it implements a related change that David
      made to the other HCDs but forgot to put into dummy_hcd.
      Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      0c0382e3
    • D
      [PATCH] all HCDs provide root hub suspend/resume methods · 9293677a
      David Brownell 提交于
      This cleans up a small recent FIXME, ensuring that all the HCDs provide
      root hub suspend/resume methods.  It also wraps the calls to those root
      suspend routines just like on the PCI "USB_SUSPEND not defined" cases,
      so non-PCI bus glue won't be as tempted to behave very differently.
      
      Several of the SOC based OHCI drivers forgot to list those methods;
      the patch also adds those missing declarations.
      Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      
       drivers/usb/core/hcd.c          |   42 +++++++++++++++++++++++++---------------
       drivers/usb/host/ohci-au1xxx.c  |    5 ++++
       drivers/usb/host/ohci-lh7a404.c |    5 ++++
       drivers/usb/host/ohci-pxa27x.c  |    1
       drivers/usb/host/ohci-s3c2410.c |    1
       drivers/usb/host/ohci-sa1111.c  |    1
       6 files changed, 40 insertions(+), 15 deletions(-)
      9293677a
    • D
      [PATCH] remove some USB_SUSPEND dependencies · 8ad7fe16
      David Brownell 提交于
      This simplifies some of the PM-related #ifdeffing by recognizing
      that USB_SUSPEND depends on PM.  Also, OHCI drivers were often
      testing for USB_SUSPEND when they should have tested just PM.
      Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      
       drivers/usb/core/hcd.c          |    2 ++
       drivers/usb/host/ohci-hcd.c     |    2 +-
       drivers/usb/host/ohci-hub.c     |    4 ++--
       drivers/usb/host/ohci-omap.c    |    2 +-
       drivers/usb/host/ohci-pci.c     |    2 +-
       drivers/usb/host/ohci-ppc-soc.c |    4 ++--
       drivers/usb/host/ohci-pxa27x.c  |    2 +-
       drivers/usb/host/ohci-s3c2410.c |    3 +--
       drivers/usb/host/ohci-sa1111.c  |    2 +-
       9 files changed, 12 insertions(+), 11 deletions(-)
      8ad7fe16
    • R
      [PATCH] DRIVER MODEL: Get rid of the obsolete tri-level suspend/resume callbacks · 9480e307
      Russell King 提交于
      In PM v1, all devices were called at SUSPEND_DISABLE level.  Then
      all devices were called at SUSPEND_SAVE_STATE level, and finally
      SUSPEND_POWER_DOWN level.  However, with PM v2, to maintain
      compatibility for platform devices, I arranged for the PM v2
      suspend/resume callbacks to call the old PM v1 suspend/resume
      callbacks three times with each level in order so that existing
      drivers continued to work.
      
      Since this is obsolete infrastructure which is no longer necessary,
      we can remove it.  Here's an (untested) patch to do exactly that.
      Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      9480e307