linux-stable.git/drivers/usb/musb, branch linux-3.5.y

usb: musb: host: release dma channels if no active io

2012-06-22T10:15:55+00:00

Currently DMA channels are allocated and they remain allocated
even if there is no active data transfer. Added channel_release()
whenever there is no pending request.

Signed-off-by: Ajay Kumar Gupta 
Signed-off-by: Felipe Balbi

usb: musb_gadget: fix crash caused by dangling pointer

2012-06-04T15:30:20+00:00

usb_ep_ops.disable must clear external copy of the endpoint descriptor,
otherwise musb crashes after loading/unloading several gadget modules
in a row:

Unable to handle kernel paging request at virtual address bf013730
pgd = c0004000
[bf013730] *pgd=8f26d811, *pte=00000000, *ppte=00000000
Internal error: Oops: 7 [#1]
Modules linked in: g_cdc [last unloaded: g_file_storage]
CPU: 0    Not tainted  (3.2.17 #647)
PC is at musb_gadget_enable+0x4c/0x24c
LR is at _raw_spin_lock_irqsave+0x4c/0x58
[] (musb_gadget_enable+0x4c/0x24c) from [] (gether_connect+0x3c/0x19c [g_cdc])
[] (gether_connect+0x3c/0x19c [g_cdc]) from [] (ecm_set_alt+0x15c/0x180 [g_cdc])
[] (ecm_set_alt+0x15c/0x180 [g_cdc]) from [] (composite_setup+0x85c/0xac4 [g_cdc])
[] (composite_setup+0x85c/0xac4 [g_cdc]) from [] (musb_g_ep0_irq+0x844/0x924)
[] (musb_g_ep0_irq+0x844/0x924) from [] (musb_interrupt+0x79c/0x864)
[] (musb_interrupt+0x79c/0x864) from [] (generic_interrupt+0x64/0x7c)
[] (generic_interrupt+0x64/0x7c) from [] (handle_irq_event_percpu+0x28/0x178)
...

Cc: stable@vger.kernel.org # v3.1+
Signed-off-by: Grazvydas Ignotas 
Signed-off-by: Felipe Balbi

usb: musb: davinci: Fix build breakage

2012-06-04T15:29:42+00:00

This appears to have been broken by
commit 5cfb19ac604a68c030b245561f575c2d1bac1d49
(ARM: davinci: streamline sysmod access)

For now, fix by hardcoding USB_PHY_CTRL and DM355_DEEPSLEEP

Tested on DM365 with defconfig changes.

Signed-off-by: Jon Povey 
Acked-by: Sekhar Nori 
CC: Felipe Balbi 
Cc:  # v3.4.x
Signed-off-by: Felipe Balbi

Merge tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2012-05-22T22:50:46+00:00

Pull USB 3.5-rc1 changes from Greg Kroah-Hartman:
"Here is the big USB 3.5-rc1 pull request for the 3.5-rc1 merge window.

It's touches a lot of different parts of the kernel, all USB drivers,
due to some API cleanups (getting rid of the ancient err() macro) and
some changes that are needed for USB 3.0 power management updates.

There are also lots of new drivers, pimarily gadget, but others as
well. We deleted a staging driver, which was nice, and finally
dropped the obsolete usbfs code, which will make Al happy to never
have to touch that again.

There were some build errors in the tree that linux-next found a few
days ago, but those were fixed by the most recent changes (all were
due to us not building with CONFIG_PM disabled.)

Signed-off-by: Greg Kroah-Hartman "

* tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (477 commits)
xhci: Fix DIV_ROUND_UP compile error.
xhci: Fix compile with CONFIG_USB_SUSPEND=n
USB: Fix core compile with CONFIG_USB_SUSPEND=n
brcm80211: Fix compile error for .disable_hub_initiated_lpm.
Revert "USB: EHCI: work around bug in the Philips ISP1562 controller"
MAINTAINERS: Add myself as maintainer to the USB PHY Layer
USB: EHCI: fix command register configuration lost problem
USB: Remove races in devio.c
USB: ehci-platform: remove update_device
USB: Disable hub-initiated LPM for comms devices.
xhci: Add Intel U1/U2 timeout policy.
xhci: Add infrastructure for host-specific LPM policies.
USB: Add macros for interrupt endpoint types.
xhci: Reserve one command for USB3 LPM disable.
xhci: Some Evaluate Context commands must succeed.
USB: Disable USB 3.0 LPM in critical sections.
USB: Add support to enable/disable USB3 link states.
USB: Allow drivers to disable hub-initiated LPM.
USB: Calculate USB 3.0 exit latencies for LPM.
USB: Refactor code to set LPM support flag.
...

Conflicts:
arch/arm/mach-exynos/mach-nuri.c
arch/arm/mach-exynos/mach-universal_c210.c
drivers/net/wireless/ath/ath6kl/usb.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

2012-05-21T19:43:54+00:00

Pull m68k updates from Geert Uytterhoeven.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Setup CROSS_COMPILE at the top
  m68k: Correct the Atari ALLOWINT definition
  m68k/video: Create 
  m68k: Make sure {read,write}s[bwl]() are always defined
  m68k/mm: Port OOM changes to do_page_fault()
  scsi/atari: Make more functions static
  scsi/atari: Revive "atascsi=" setup option
  net/ariadne: Improve debug prints
  m68k/atari: Change VME irq numbers from unsigned long to unsigned int
  m68k/amiga: Use arch_initcall() for registering platform devices
  m68k/amiga: Add error checks when registering platform devices
  m68k/amiga: Mark z_dev_present() __init
  m68k: Remove unused MAX_NOINT_IPL definition

usb: musb: cppi: add missing include to fix compilation

2012-05-14T19:45:45+00:00

This fixes compilation as module.

Signed-off-by: Reinhard Tartler 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'musb-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

2012-05-07T17:02:01+00:00

usb: musb: patches for v3.5 merge window

MUSB has only two patches for this merge window adding
support for TI's TI81xx platforms which contains two
MUSB IP instances.

Nothing scary here, just yet another glue layer for MUSB.

usb: musb: enable support for am335x

2012-05-04T10:59:35+00:00

Enabled the flag so that musb_dsps glue file can be used for am335x

Signed-off-by: Ajay Kumar Gupta 
Signed-off-by: Felipe Balbi

usb: musb: Add support for ti81xx platform

2012-05-04T10:59:34+00:00

TI81XX platform has two musb interfaces and uses CPPI4.1 DMA engine.
It has builtin USB PHYs as AM35x. The current set of patches adds support
for one instance and only in PIO mode.

[ balbi@ti.com : make it compile and solve a "may be used
	uninitialized" warning ]

Signed-off-by: Ajay Kumar Gupta 
Signed-off-by: Ravi Babu 
Signed-off-by: Felipe Balbi

m68k: Make sure {read,write}s[bwl]() are always defined

2012-04-22T18:16:50+00:00

drivers/usb/musb/musb_io.h provides default implementations for
{read,write}s[bwl]() on most platforms, some of which will conflict soon
with platform-specific counterparts on m68k.

To avoid having to add more platform-specific checks to musb_io.h later,
make sure {read,write}s[bwl]() are always defined on m68k, and disable the
default implementations in musb_io.h on m68k, like is already done for
several other architectures.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Felipe Balbi