linux.git/drivers/usb/otg, branch v2.6.32

USB: OMAP: ISP1301: Compile fix

2009-09-23T13:46:37+00:00

OMAP: ISP1301: Compile fix

Fix this build error on non- OMAP-H2/H3/H4 systems:
(factored out two empty functions as part of the fix)

  CC      drivers/usb/otg/isp1301_omap.o
drivers/usb/otg/isp1301_omap.c: In function 'otg_update_isp':
drivers/usb/otg/isp1301_omap.c:635: error: implicit declaration of function 'notresponding'
drivers/usb/otg/isp1301_omap.c: In function 'b_peripheral':
drivers/usb/otg/isp1301_omap.c:973: error: implicit declaration of function 'enable_vbus_draw'
drivers/usb/otg/isp1301_omap.c: In function 'isp_update_otg':
drivers/usb/otg/isp1301_omap.c:1003: error: implicit declaration of function 'enable_vbus_source'
make[2]: *** [drivers/usb/otg/isp1301_omap.o] Error 1
make[1]: *** [drivers/usb/otg] Error 2
make: *** [drivers] Error 2

Signed-off-by: Anand Gadiyar 
Cc: David Brownell 
Signed-off-by: Greg Kroah-Hartman

USB: otg: fix twl4030-usb build

2009-09-23T13:46:34+00:00

subsys_initcall_sync() is only defined for built-in code, not for
loadable modules, so this driver build fails when built as a module.
However, the _sync() forms of the initcalls are not implemented,
so this should not be used -- just use the non-sync form of it.

drivers/usb/otg/twl4030-usb.c:777: warning: data definition has no type or storage class
drivers/usb/otg/twl4030-usb.c:777: warning: type defaults to 'int' in declaration of 'subsys_initcall_sync'
drivers/usb/otg/twl4030-usb.c:777: warning: parameter names (without types) in function declaration

Signed-off-by: Randy Dunlap 
Cc: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

USB: otg: twl4030-usb.c: mark .init as subsys_initcall_sync

2009-09-23T13:46:33+00:00

This patch fixes the .probe failure of twl4030_usb driver if
it is compiled into kernel.

Since twl4030_usb USB transceiver .probe depends on
twl4030-regulator, marking twl4030_usb_init as subsys_initcall_sync
can make it called after twl4030-regulator initialization is finished,
then twl4030_usb USB transceiver driver can be probed successfully.

Signed-off-by: Ming Lei 
Cc: David Brownell 
Signed-off-by: Greg Kroah-Hartman

USB: otg: fix module reinsert issue

2009-07-12T22:16:41+00:00

Platform_device instance (pd) is not set to NULL in
usb_nop_xceiv_unregister() causing usb_nop_xceiv_register()
to fail during module reinsert.

From: Ajay Kumar Gupta 
Signed-off-by: Babu Ravi 
Acked-by: David Brownell

Revert "USB: Add Intel Langwell USB OTG Transceiver Drive"

2009-07-12T22:16:36+00:00

This reverts commit 453f77558810ffa669ed5a510a7173ec49def396.

The driver should not have been accepted as the MSRT code is not
in the main kernel yet, which this depends on.

Cc: Alan Cox 
Cc: Hao Wu 
Signed-off-by: Greg Kroah-Hartman

USB: Add Intel Langwell USB OTG Transceiver Drive

2009-06-16T04:44:47+00:00

Description:
This driver is used for Intel Langwell* USB OTG controller in Intel
Moorestown* platform. It tries to implement host/device role switch
according to OTG spec.  The actual hsot and device functions are
accomplished in modified EHCI driver and Intel Langwell USB OTG client
controller driver.

* Langwell and Moorestown are names used in development. They are not
  approved official name.

Note:
This patch is the first version Intel Langwell USB OTG Transceiver
driver. The development is not finished, and the bug fixing is on going
for some hardware and software issues. The main purpose of this
submission is for code view.

Supported features:
- Data-line Pulsing SRP
- Support HNP to switch roles
- PCI D0/D3 power management support

Known issues:
- HNP is only tested with another Moorestown platform.
- PCI D0/D3 power management support is not fully tested.
- VBus Pulsing SRP is not support in current version.

Signed-off-by: Hao Wu 
Signed-off-by: Greg Kroah-Hartman

USB: nop-usb-xceiv: behave when linked as a module

2009-06-16T04:44:40+00:00

The NOP OTG transceiver driver needs to be usable from modules.
Make sure its symbols are always accessible at both compile and
link time, and make sure the device instance is allocated from
the heap so that device lifetime rules are obeyed.

Signed-off-by: David Brownell 
Signed-off-by: Greg Kroah-Hartman

USB: twl4030-usb: fix minor reporting goofage

2009-06-16T04:44:40+00:00

Fix a reporting glitch in the twl4030 USB transceiver code.
It wasn't properly distinguishing the two types of active
USB link:  ID grounded, vs not.  In the current code that
distinction doesn't much matter; in the future this bugfix
should help support better USB controller communications.

Provide a comment sorting out some of the cryptic bits of
the manual:  different sections use different names for
key signals, and the register definitions don't help much
without the explanations and diagrams.

Signed-off-by: David Brownell 
Signed-off-by: Greg Kroah-Hartman

USB: move twl4030_usb's probe function to .devinit.text

2009-06-16T04:44:40+00:00

A pointer to twl4030_usb_probe is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded.  Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.

An alternative to this patch is using platform_driver_probe instead of
platform_driver_register plus removing the pointer to the probe function
from the struct platform_driver.

Signed-off-by: Uwe Kleine-König 
Cc: Jouni Hogander 
Cc: Kalle Jokiniemi 
Cc: Andrew Morton 
Cc: David Brownell 
Cc: Tony Lindgren 
Cc: Kevin Hilman 
Cc: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

USB: otg: Fix bug on remove path without transceiver

2009-04-23T21:15:31+00:00

In the case where a gadget driver is removed while no
transceiver was found at probe time, a bug in
otg_put_transceiver() will trigger.

Provide symetric calls for otg_get_transceiver() and
otg_put_transceiver(), wherever a transceiver was found or
not.

Signed-off-by: Robert Jarzmik 
Acked-by: David Brownell 
Signed-off-by: Greg Kroah-Hartman