Commit graph

730 commits

Author SHA1 Message Date
Virupax Sadashivpetimath
ed74df12dc usb: musb: make use_sg flag URB specific
Since highmem PIO URB handling was introduced in:

8e8a551 usb: musb: host: Handle highmem in PIO mode

when a URB is being handled it may happen that the static use_sg flag
was set by a previous URB with buffer in highmem.  This leads to error
in handling the present URB.

Fix this by making the use_sg flag URB specific.

Cc: stable <stable@vger.kernel.org> # 3.7+
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 22:17:21 +03:00
Fabio Baltieri
3147dad6fa usb: musb: various cosmetic fixes on ux500 files
Various non functional coding style fixes on ux500_dma.c and
phy-ab8500-usb.c drivers.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 20:00:04 +03:00
Mian Yousaf Kaukab
aee5500f4f usb: musb: enable ux500 host side dma support
Host side dma support for ux500 is enabled by piggybacking on Inventra
dma support.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 19:58:57 +03:00
Daniel Mack
8b125df5b2 usb: musb: eliminate musb_to_hcd
With the hcd is now a direct member of struct musb, we can now simply
eliminate the musb_to_hcd() macro. There aren't that many users left
anyway, as some where already fixed up when parts were factored out to
musb_host.c

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 19:22:26 +03:00
Daniel Mack
6c5f6a6f53 usb: musb: use musb->port_mode
Initialize the host and gadget subsystems of the musb driver only when
the appropriate mode is selected from platform data, or device-tree
information, respectively.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 19:22:25 +03:00
Daniel Mack
9ad96e694c usb: musb: re-introduce musb->port_mode
Define MUSB_PORT_MODE_{HOST,GADGET,DUAL_ROLE} and store the
platform-specified value in struct musb.

Note that MUSB_PORT_MODE_HOST has to be set to 1 in order to match
existing device tree bindings which are already documented but in fact
unusued. For information on the bindings, please refer to

  Documentation/devicetree/bindings/usb/omap-usb.txt
  Documentation/devicetree/bindings/usb/am33xx-usb.txt

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 19:22:24 +03:00
Daniel Mack
2cc65feab2 usb: musb: add musb_host_setup() and musb_host_cleanup()
This patch re-introduces the bits that are necessary to use the musb
controller in host mode.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 19:22:24 +03:00
Daniel Mack
b7b741ea38 usb: musb: add Kconfig options for HOST, GAGDET or DUAL_ROLE modes
This makes building the actual object files optional to the selected
mode, which saves users who know which kind of USB mode support they
need some binary size.

Unimplemented functions are stubbed out with static inline functions.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 19:22:23 +03:00
Daniel Mack
74c2e93600 usb: musb: factor out hcd initalization
The musb struct is currently allocated along with the hcd, which makes
it difficult to build a driver that only acts as gadget device.

Fix this by allocating musb directly, and keep the hcd around as
a pointer in the musb struct.

struct hc_driver musb_hc_driver can now also be static to musb_host.c,
and the macro musb_to_hcd() is just a pointer dereferencer for now, and
will be eliminated later.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 19:22:23 +03:00
Daniel Mack
69ae2a70bf usb: musb: move musb_start to musb_virthub.c
This function has its only user in musb_virthub.c, so let's move it
there and make it static.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 19:22:22 +03:00
Daniel Mack
fe4cb0912f usb: musb: gadget: remove hcd initialization
This will be done from a more appropriate location and as it doesn't
work anyway, it can safely be removed before the other changes.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 19:22:22 +03:00
Daniel Mack
0b3eba442d usb: musb: factor some host-specific functions
In particular, this introduces musb_host_resume_root_hub()and
musb_host_poke_root_hub() which will be stubbed out later.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 19:22:21 +03:00
Daniel Mack
c2a2759d33 usb: musb: move function declarations to musb_{host,gadget}.h
Let the function declarations live in the header files they belong to,
which makes it easier to stub them out later.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 19:22:20 +03:00
Felipe Balbi
6d34967117 usb: musb: remove 'ignore_disconnect' flag
This was related to an old bug on early versions
of TUSB6010 which we don't support anymore.

It's known to cause issues on several other
situations with more recent devices so we
better remove this flag now and come up
with a better workaround should one be deemed
necessary.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 19:02:57 +03:00
Felipe Balbi
09fc7d22b0 usb: musb: fix incorrect usage of resource pointer
We can't simply pass the resource pointer from our
device down to our children, otherwise module
reinsertion will not work as the resource will
continue to be marked as busy.

Fix it by building a proper struct resource for
our child musb device.

Tested-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 19:00:49 +03:00
Masanari Iida
8b513d0cf6 treewide: Fix typo in printk
Correct spelling typo in various part of drivers

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-05-28 12:02:13 +02:00
Wei Yongjun
b25e5f1c44 usb: musb: dsps: fix error return code in dsps_create_musb_pdev()
Fix to return -ENOMEM in the devm_kzalloc() error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-15 17:24:17 +03:00
Wei Yongjun
4b7e450fb5 usb: musb: omap2430: add missing platform_device_put() on error in omap2430_probe()
Add the missing platform_device_put() before return from
omap2430_probe() in the error handling case.

Introduced by commit ca784be36c
(usb: start using the control module driver)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-15 17:19:12 +03:00
Florian Fainelli
25e11ec4fe USB: regroup all depends on USB within an if USB block
This patch removes the depends on USB from all config symbols in
drivers/usb/host/Kconfig and replace that with an if USB / endif block
as suggested by Alan Stern. Some source ... Kconfig lines have been
shuffled around to permit a better regroupment of the Kconfig files
depending on "config USB" item. No functionnal change is introduced.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-09 16:49:07 -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
Fabio Baltieri
77f4396ecb usb: phy: ab8500-usb: fix last notifier arguments
Fix last ab->phy.notifier call to use vbus_draw as notifier argument, as
that's used in ab8500_charger to control charging current.

Also drop a related TODO comment, and the additional
ux500_musb_set_vbus(musb, 0), as with this patch it was causing an
erratic behaviour of gadget ep0 state machine.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03 12:02:21 +03:00
Fabio Baltieri
3ee1f2e6e5 usb: musb: ux500_dma: drop references to U5500
Drop references to deprecated U5500 platform in driver comments.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-03 11:55:10 +03:00
Ravi Babu
538bf07d89 usb: musb: gadget: read ep0 fifo only if rxcount is non zero
avoid reading fifo rxcount is zero of fifo is empty, hence
read fifo only if rxcount is non-zero

Signed-off-by: Ravi Babu <ravibabu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-02 11:42:50 +03:00
Ravi Babu
96449f097e usb: musb: dsps: print babble message only when musb is active host
The musb controller uses single bit defintion for both reset and
babble events. The babble event is valid only when controller is
active a-host, and hence print the babble message only when the
controller is active a-host.

Signed-off-by: Ravi Babu <ravibabu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-02 11:42:50 +03:00
Ruslan Bilovol
8408fd1d83 usb: musb: implement (un)map_urb_for_dma hooks
MUSB controller cannot work in DMA mode with misaligned buffers,
switching in PIO mode.

HCD core has hooks that allow to override the default DMA
mapping and unmapping routines for host controllers that have
special DMA requirements, such as alignment constraints.

It is observed that work in PIO mode is slow and it's better
to align buffers properly before passing them to MUSB

This increased throughput 80->120 MBits/s over musb@omap4 with
USB Gigabit Ethernet adapter attached.

Some ideas are taken from ehci-tegra.c

Signed-off-by: Ruslan Bilovol <ruslan.bilovol@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-02 11:42:49 +03:00
Grazvydas Ignotas
b65ae0f1a7 usb: musb: gadget: use platform callback to enable vbus
On some platform configurations (like OMAP3+twl4030) it's the platform
code that enables VBUS, not OTG transceiver, so call vbus platform
callback instead, it will then call the transceiver if needed.

This fixes a use case where USB cable is plugged first and gadget
driver is loaded later after that.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-02 11:42:44 +03:00
Grazvydas Ignotas
2c1fe89db1 usb: musb: omap2430: turn off vbus on cable disconnect
On USB_EVENT_ID event the musb glue enables VBUS by calling
omap2430_musb_set_vbus(musb, 1) that sets the session bit, but on
USB_EVENT_NONE reverse action is never made, and that breaks PM.

Disable VBUS on USB_EVENT_NONE to be sure musb session is ended
on cable unplug so that PM works.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-02 11:42:44 +03:00
Felipe Balbi
6b0cfc656f usb: musb: ux500_dma: fix sparse warning
fix the following sparse warning:

drivers/usb/musb/ux500_dma.c:60:6: warning: symbol 'ux500_dma_callback' was not declared. Should it be static?

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-27 13:19:00 +02:00
Grazvydas Ignotas
54485116cd usb: musb: core: log VBUS error
VBUS_ERROR is a serious error that the driver often doesn't recover from
in my tests, so we should at least inform the user about it.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-22 08:44:24 +02:00
Grazvydas Ignotas
e21de10cd8 usb: musb: gadget: clear gadget_driver when gadget is stopped
Some musb glue drivers use gadget_driver pointer to know if any gadget
drivers are loaded at some moment and base further decisions on it,
like to do runtime suspend/resume or not. Right now the pointer is
left alone on stop and OMAP musb glue later does wrong runtime_pm
decisions because of it.

Clear the gadget_driver pointer on remove, it's invalid after stop
anyway.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-22 08:41:28 +02:00
Grazvydas Ignotas
e561511280 usb: musb: core: honour initial transceiver state
As the usb transceiver driver usually starts first, it should already
have default_a variable set according to ID pin state, so don't
override it. In case default_a was not changed by trasceiver, it will
default to 0 and this code will work as before.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-22 08:40:48 +02:00
Greg Kroah-Hartman
d93acbcacd usb: fixes for v3.9-rc4
udc-core learned that it shouldn't use invalid pointers
 when unloading a gadget driver.
 
 net2272 and net2280 got a fix for a regression caused by
 the udc_start/udc_stop conversion.
 
 We're defining a static inline no-op for otg_ulpi_create()
 to prevent build errors when that driver isn't enabled.
 
 FunctionFS got a fix for an off-by-one error when binding
 and unbinding instances of FunctionFS.
 
 MUSB learned that it shouldn't try to unmap buffers which
 weren't previously mapped.
 
 f_rndis got a fix for a possible NULL pointer dereference
 in a debugging message code.
 
 MUSB's DA8xx glue layer got a build fix due to a typo.
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Merge tag 'fixes-for-v3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

	usb: fixes for v3.9-rc4

	udc-core learned that it shouldn't use invalid pointers
	when unloading a gadget driver.

	net2272 and net2280 got a fix for a regression caused by
	the udc_start/udc_stop conversion.

	We're defining a static inline no-op for otg_ulpi_create()
	to prevent build errors when that driver isn't enabled.

	FunctionFS got a fix for an off-by-one error when binding
	and unbinding instances of FunctionFS.

	MUSB learned that it shouldn't try to unmap buffers which
	weren't previously mapped.

	f_rndis got a fix for a possible NULL pointer dereference
	in a debugging message code.

	MUSB's DA8xx glue layer got a build fix due to a typo.
2013-03-21 08:40:22 -07:00
Fabio Baltieri
af6882be36 usb: phy: ab8500-usb: update irq handling code
Update irq handling code to notify all possible link status changes of
AB8500 and AB8505 to the ux500-musb glue driver.  The additional event
codes will be used for pm-runtime implementation, and are defined in a
separate ux500-specific header.

This also modify the irq registration code to use devm_* helpers and
drop all non necessary fail path code.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 14:41:33 +02:00
Fabio Baltieri
0135522c48 usb: musb: ux500: add otg notifier support
Add transceiver notifier event handling to the ux500 driver to set vbus
on specific transceiver events.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>

[ balbi@ti.com: fix build error due to missing
	otg_state_string() ]

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 14:41:32 +02:00
Fabio Baltieri
996a9d26d3 usb: musb: ux500: implement musb_set_vbus
Add ux500_musb_set_vbus() implementation for ux500.

This is based on the version originally developed inside ST-Ericsson.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>

[ balbi@ti.com: fix a build error due to
	missing otg_state_string() ]

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 14:41:32 +02:00
Virupax Sadashivpetimath
399e0f4f00 usb: musb: ux500_dma: add missing MEM resource check
Fix dma_controller_create() fail path in case memory resource is
missing.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 14:41:31 +02:00
Felipe Balbi
a90199bb94 usb: musb: omap2430: fix PHY error handling
PHY layer no longer returns NULL. It will
return -ENXIO when PHY layer isn't enabled
and we can use that to bail out instead of
request a probe deferral.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:18:29 +02:00
Kishon Vijay Abraham I
3bf6db9bbe usb: musb: omap: add usb_phy_init in omap2430_musb_init
Some PHYs load too early (twl4030) making omap glue to miss cable connect events
if the board is booted with cable connected. So adding usb_phy_init in
omap2430_musb_init lets PHYs to report events once glue is ready.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:18:26 +02:00
Kishon Vijay Abraham I
bb467cf569 usb: musb: omap: remove the check before calling otg_set_vbus
No functional change. otg_set_vbus is already protected so removed the
check before calling otg_set_vbus.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:18:25 +02:00
Kishon Vijay Abraham I
eee44da045 usb: musb: omap2430: replace *_* with *-* in property names
No functional change. Replace *_* with *-* in property names of otg to
follow the general convention.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:18:23 +02:00
Felipe Balbi
fd89149875 usb: phy: remove CONFIG_USB_OTG_UTILS
there are no more users of CONFIG_USB_OTG_UTILS
left in tree, we can remove it just fine.

[ kishon@ti.com : fixed a linking error due
	to original patch forgetting to change
	drivers/usb/Makefile ]

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:18:08 +02:00
Felipe Balbi
42c0bf1ce7 usb: otg: prefix otg_state_string with usb_
all other functions under drivers/usb/ start
with usb_, let's do the same thing.

This patch is in preparation for moving otg_state_string
to usb-common.c and deleting otg.c completely.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:18:03 +02:00
Fabio Baltieri
2daf5966d1 usb: musb: drop dangling CONFIG_USB_MUSB_DEBUG
CONFIG_USB_MUSB_DEBUG option was removed in

5c8a86e usb: musb: drop unneeded musb_debug trickery

to cleanup the code from driver specific debug facilities.  This patch
drops the last references to the musb debug config option,
unconditionally enabling all debug code paths, thus letting that code
being dropped at compile time if not needed.

Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:18:01 +02:00
Felipe Balbi
07d8316827 usb: musb: gadget: don't assign gadget.dev.release directly
udc-core provides a better way to handle release
methods, let's use it.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:55 +02:00
Felipe Balbi
5e6e3d3814 usb: musb: gadget: remove unnecessary initializations
udc-core now sets dma-related and parent fields
for us, we don't need to do it ourselves.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:30 +02:00
Felipe Balbi
a033f7ae60 usb: musb: Kconfig: drop unnecessary dependencies
those glues can build cleanly anywhere.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:09 +02:00
Felipe Balbi
37730eccf2 usb: musb: gadget: fix compile warning
Fix the following compile warning:

drivers/usb/musb/musb_gadget.c: In function ‘rxstate’:
drivers/usb/musb/musb_gadget.c:714:22: warning: comparison of distinct pointer types lacks a cast [enabled by default]

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:08 +02:00
Felipe Balbi
cc5060366b usb: musb: dsps: fix possible compile warning
if CONFIG_OF is disabled, np will be unused
and that will give us a compile warning. This
patch just avoids it.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:08 +02:00
Felipe Balbi
6a3b003620 usb: musb: ux500_dma: kill compile warnings
Fix the following compile warnings:

drivers/usb/musb/ux500_dma.c: In function ‘ux500_configure_channel’:
drivers/usb/musb/ux500_dma.c:96:2: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 6 has type ‘dma_addr_t’ [-Wformat]
drivers/usb/musb/ux500_dma.c: In function ‘ux500_dma_is_compatible’:
drivers/usb/musb/ux500_dma.c:195:4: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:07 +02:00
Felipe Balbi
0f53e48132 usb: musb: dsps: add missing include
<linux/sizes.h> is the header defining SZ_4
and SZ_16M, we shouldn't depend on indirect
inclusion so let's explicitly include it.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:06 +02:00
Felipe Balbi
787f5627be usb: musb: make davinci and da8xx glues depend on BROKEN
those two glues are still including <mach/>
headers and no active developement has been
going on those glues for quite some time.

Apparently, for da8xx glue, only initial commit
3ee076de (usb: musb: introduce DA8xx/OMAP-L1x
glue layer) has been tested. All other patches
seem to have been compile-tested only.

For davinci glue layer, last real commit dates
back from 2010, with commit f405387 (USB: MUSB:
fix kernel WARNING/oops when unloading module
in OTG mode).

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:06 +02:00
Felipe Balbi
99b7856f3c usb: musb: force PIO-only if we're building multiplatform kernels
MUSB still needs lots of work on the DMA part
if we want to enable multiple DMA engines on
a multiplatform kernel. Meanwhile, we're forcing
PIO-only so that we, at least, have a working
driver.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:05 +02:00
Felipe Balbi
38c5df2256 usb: musb: gadget: delete wrong comment
Those comments haven't been updated for a long
time, so much that they don't make sense anymore.

Best to remove them.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:05 +02:00
Felipe Balbi
b42f7f3091 usb: musb: switch over to devm_ioremap_resource()
this will make sure that request_memory_region() will
be called and that we don't need to manually call
iounmap() on ->remove().

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:04 +02:00
Felipe Balbi
6110a7ebda usb: musb: core: remove unnecessary pr_info()
there's really no need for that message. It's
been a while since it printed something useful.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:04 +02:00
Felipe Balbi
7bce401cc6 usb: gadget: drop now unnecessary flag
We don't need the ->register_my_device flag
anymore because all UDC drivers have been
properly converted.

Let's remove every history of it.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:16:55 +02:00
Felipe Balbi
5ed01c6400 usb: musb: gadget: let udc-core manage gadget-dev
By simply setting a flag, we can delete a little
boilerplate code.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:16:40 +02:00
Kishon Vijay Abraham I
06d9db7273 usb: musb: gadget: do *unmap_dma_buffer* only for valid DMA addr
musb does not use DMA buffer for ep0 but it uses the same giveback
function *musb_g_giveback* for all endpoints (*musb_g_ep0_giveback* calls
*musb_g_giveback*). So for ep0 case request.dma will be '0'
and will result in kernel OOPS if tried to *unmap_dma_buffer* for requests in
ep0. Fixed it by doing *unmap_dma_buffer* only for valid DMA addr and
checking that musb_ep->dma is valid when unmapping.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 10:18:28 +02:00
Mikhail Kshevetskiy
db9e51617f usb: musb: da8xx: Fix build breakage due to typo
Commit 032ec49f53 (usb: musb: drop useless
board_mode usage) introduced a typo that breaks the build.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@gmail.com>

[ Fixed commit message ]

Cc: Mikhail Kshevetskiy <mikhail.kshevetskiy@gmail.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org
Signed-off-by: Michael Riesch <michael.riesch@omicron.at>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-14 12:44:54 +02:00
Felipe Balbi
fd5014ad5c usb: musb: core: fix possible build error with randconfig
when making commit e574d57 (usb: musb: fix
compile warning) I forgot to git add this
part of the patch which ended up introducing
a possible build error.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-11 11:09:17 -07:00
Aaro Koskinen
4b58ed11c6 usb: musb: omap2430: fix sparse warning
Fix the following sparse warning:

drivers/usb/musb/omap2430.c:54:33: warning: symbol '_glue' was not \
	declared. Should it be static?

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-05 13:28:32 +02:00
Aaro Koskinen
f8c4b0e73b usb: musb: omap2430: fix omap_musb_mailbox glue check again
Commit 80ab72e1 (usb: musb: omap2430: fix the readiness check
in omap_musb_mailbox) made the check incorrect, as we will lose the
glue/link status during the normal built-in probe order (twl4030_usb is
probed after musb omap2430, but before musb core is ready).

As a result, if you boot with USB cable on and load g_ether, the
connection does not work as the code thinks the cable is off and the
phy gets powered down immediately. This is a major regression in 3.9-rc1.

So the proper check should be: exit if _glue is NULL, but if it's
initialized we memorize the status, and then check if the musb core
is ready.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-05 13:26:59 +02:00
Felipe Balbi
e574d57081 usb: musb: fix compile warning
When running 100 randconfig iterations, I found
the following warning:

drivers/usb/musb/musb_core.c: In function ‘musb_init_controller’:
drivers/usb/musb/musb_core.c:1981:1: warning: label ‘fail5’ defined \
	but not used [-Wunused-label]

this patch fixes it by removing the unnecessary
ifdef CONFIG_SYSFS.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-05 13:25:36 +02:00
Felipe Balbi
341a71c790 usb: musb: remove all 'select' from Kconfig
those are quite unnecessary, the only thing
we need to be careful about is USB_OTG_UTILS
which get properly selected by PHY drivers.

For now, MUSB will select only USB_OTG_UTILS
until we add stubs for the cases when PHY
layer isn't enabled.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-05 13:22:40 +02:00
Peter Ujfalusi
a10840c9ac usb: musb: correct Kconfig in order to avoid non compilable selection
Currently it is possible to have:

USB_MUSB_OMAP2PLUS=m
TWL4030_USB=y

which would result compile time error due to missing symbols.

With this change USB_MUSB_OMAP2PLUS and TWL4030_USB will be in sync.

Reported-by: Vincent Stehle <v-stehle@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-04 09:33:30 +02:00
Linus Torvalds
74e1a2a393 USB patches for 3.9-rc1
Here's the big USB merge for 3.9-rc1
 
 Nothing major, lots of gadget fixes, and of course, xhci stuff.
 
 All of this has been in linux-next for a while, with the exception of
 the last 3 patches, which were reverts of patches in the tree that
 caused problems, they went in yesterday.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.9-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 merge for 3.9-rc1

  Nothing major, lots of gadget fixes, and of course, xhci stuff.

  All of this has been in linux-next for a while, with the exception of
  the last 3 patches, which were reverts of patches in the tree that
  caused problems, they went in yesterday."

* tag 'usb-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (190 commits)
  Revert "USB: EHCI: make ehci-vt8500 a separate driver"
  Revert "USB: EHCI: make ehci-orion a separate driver"
  Revert "USB: update host controller Kconfig entries"
  USB: update host controller Kconfig entries
  USB: EHCI: make ehci-orion a separate driver
  USB: EHCI: make ehci-vt8500 a separate driver
  USB: usb-storage: unusual_devs update for Super TOP SATA bridge
  USB: ehci-omap: Fix autoloading of module
  USB: ehci-omap: Don't free gpios that we didn't request
  USB: option: add Huawei "ACM" devices using protocol = vendor
  USB: serial: fix null-pointer dereferences on disconnect
  USB: option: add Yota / Megafon M100-1 4g modem
  drivers/usb: add missing GENERIC_HARDIRQS dependencies
  USB: storage: properly handle the endian issues of idProduct
  testusb: remove all mentions of 'usbfs'
  usb: gadget: imx_udc: make it depend on BROKEN
  usb: omap_control_usb: fix compile warning
  ARM: OMAP: USB: Add phy binding information
  ARM: OMAP2: MUSB: Specify omap4 has mailbox
  ARM: OMAP: devices: create device for usb part of control module
  ...
2013-02-21 12:20:00 -08:00
Heiko Carstens
5273afe359 drivers/usb: add missing GENERIC_HARDIRQS dependencies
Add a couple of missing GENERIC_HARDIRQS dependencies to fix link
errors like below on s390:

ERROR: "devm_request_threaded_irq" [drivers/usb/gadget/mv_udc.ko] undefined!

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-08 12:16:12 -08:00
Greg Kroah-Hartman
422d26b6ec Merge 3.8-rc5 into driver-core-next
This resolves a gpio driver merge issue pointed out in linux-next.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-25 21:06:30 -08:00
Greg Kroah-Hartman
67635d397a Merge 3.8-rc5 into usb-next
This fixes up a conflict with drivers/usb/serial/io_ti.c that came up in
linux-next.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-25 12:41:02 -08:00
Greg Kroah-Hartman
4811f53fad usb: xceiv: patches for v3.9 merge window
Two new PHY drivers coming here: one for Samsung,
 one for OMAP. Both architectures are adding USB3
 support to mainline kernel.
 
 The PHY layer now allows us to have mulitple PHYs
 of the same type, which is necessary for platforms
 which provide more than one USB peripheral port.
 
 There's also a few cleanups here: removal of __dev*
 annotations, conversion of a cast to to_delayed_work(),
 and mxs-phy learns about ->set_suspend.
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Merge tag 'xceiv-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:
	usb: xceiv: patches for v3.9 merge window

	Two new PHY drivers coming here: one for Samsung,
	one for OMAP. Both architectures are adding USB3
	support to mainline kernel.

	The PHY layer now allows us to have mulitple PHYs
	of the same type, which is necessary for platforms
	which provide more than one USB peripheral port.

	There's also a few cleanups here: removal of __dev*
	annotations, conversion of a cast to to_delayed_work(),
	and mxs-phy learns about ->set_suspend.
2013-01-25 09:09:46 -08:00
Greg Kroah-Hartman
468234984f usb: musb: patches for v3.9 merge window
Mostly fixes all over which weren't urgent enough for
 the late -rc cycle.
 
 There is a Double Buffering fix for Host Mode TX,
 a dependency fix for the transceiver driver, some
 fixes to the error path and a fix for the use of
 omap_musb_maibox.
 
 Other than these fixes, there a removal duplicate
 headers from the dsps glue layer and removal of
 redundant assignments in omap2430_probe().
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Merge tag 'musb-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:
	usb: musb: patches for v3.9 merge window

	Mostly fixes all over which weren't urgent enough for
	the late -rc cycle.

	There is a Double Buffering fix for Host Mode TX,
	a dependency fix for the transceiver driver, some
	fixes to the error path and a fix for the use of
	omap_musb_maibox.

	Other than these fixes, there a removal duplicate
	headers from the dsps glue layer and removal of
	redundant assignments in omap2430_probe().
2013-01-25 09:00:42 -08:00
Kishon Vijay Abraham I
b16604f2c1 usb: musb: omap: get phy by phandle for dt boot
The OMAP glue has been modified to get PHY by phandle
for dt boot.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-25 13:03:10 +02:00
Kishon Vijay Abraham I
c11747f6ce usb: musb: omap: make use of the new PHY lib APIs
New PHY lib APIs like usb_add_phy_dev() and devm_usb_get_phy_dev() are
used in MUSB (OMAP), in order to make use of the binding information
provided in the board file (of OMAP platforms).

All the platforms should be modified similar to this to add and get the
PHY.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-25 13:03:09 +02:00
Kishon Vijay Abraham I
ca784be36c usb: start using the control module driver
Start using the control module driver for powering on the PHY and for
writing to the mailbox instead of writing to the control module
registers on their own.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-25 12:27:24 +02:00
Thierry Reding
148e11349b usb: Convert to devm_ioremap_resource()
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.

devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-22 11:41:58 -08:00
Sergei Shtylyov
091a62c9b3 usb: musb: cppi_dma: drop '__init' annotation
This patch fixes the following:

WARNING: vmlinux.o(.text+0x1e709c): Section mismatch in reference from the funct
ion dma_controller_create() to the function .init.text:cppi_controller_start()
The function dma_controller_create() references
the function __init cppi_controller_start().
This is often because dma_controller_create lacks a __init
annotation or the annotation of cppi_controller_start is wrong.

This warning is there due to the deficiency in the commit 07a67bbb (usb: musb:
Make dma_controller_create __devinit).

Since the start() method is only called from musb_init_controller() which is
not annotated, drop '__init' annotation from cppi_controller_start() and also
cppi_pool_init() since it gets called from that function, to avoid another
section mismatch warning...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: stable@vger.kernel.org # 3.7+
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-18 14:08:18 +02:00
Sergei Shtylyov
b37457d80b usb: musb: omap2430: fix wrong devm_kzalloc() result check
Commit 00a0b1d58a (usb: musb: omap: Add device
tree support for omap musb glue) assigns result of devm_kzalloc() call to
the 'config' variable but then checks for NULL the 'data' variable (already
checked after previous call). Thus we risk a kernel oops further when data
pointed by 'config' is written to by subsequent of_property_read_u32() calls
iff the allocation happens to fail...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-17 15:45:45 +02:00
Ming Lei
25736e0c82 usb: musb: fix dependency on transceiver driver
This patch let glue driver return -EPROBE_DEFER if the transceiver
is not readly, so we can support defer probe on musb to fix the
below error on 3.7-rc5 if transceiver drivers are built as module:

[   19.052490] unable to find transceiver of type USB2 PHY
[   19.072052] HS USB OTG: no transceiver configured
[   19.076995] musb-hdrc musb-hdrc.0.auto: musb_init_controller failed with status -19
[   19.089355] musb-hdrc: probe of musb-hdrc.0.auto rejects match -19
[   19.096771] driver: 'musb-omap2430': driver_bound: bound to device 'musb-omap2430'
[   19.105194] bus: 'platform': really_probe: bound device musb-omap2430 to driver musb-omap2430
[   19.174407] bus: 'platform': add driver twl4030_usb
[   19.179656] bus: 'platform': driver_probe_device: matched device twl4030_usb with driver twl4030_usb
[   19.202270] bus: 'platform': really_probe: probing driver twl4030_usb with device twl4030_usb
[   19.214172] twl4030_usb twl4030_usb: HW_CONDITIONS 0xc0/192; link 3
[   19.239624] musb-omap2430 musb-omap2430: musb core is not yet ready
[   19.246765] twl4030_usb twl4030_usb: Initialized TWL4030 USB module
[   19.254516] driver: 'twl4030_usb': driver_bound: bound to device 'twl4030_usb'
[   19.263580] bus: 'platform': really_probe: bound device twl4030_usb to driver twl4030_usb

Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: <stable@vger.kernel.org> v3.8
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-17 15:45:45 +02:00
Ming Lei
681d1e8761 usb: musb: core: fix failure path
In the fail1~fail5 failure path, pm_runtime_disable() should
be called to avoid 'Unbalanced pm_runtime_enable' error in
next probe() which may be triggered by defer probe or next
'modprobe musb_hdrc'.

Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: <stable@vger.kernel.org> v3.8
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-17 15:45:44 +02:00
supriya karanth
a70b84421b usb: musb: Double buffering issues in host mode TX
Whenever an URB is programmed for transfer, the TXFIFO
is flushed. This results in valid packets of the
previous transfer to get flushed when double buffering
is enabled (The MUSB_TXCSR_FIFONOTEMPTY bit in TXCSR
is set indicating that a packet in the FIFO is yet to be sent)
For ex:- In Host mode Audio, noise is heard in the headset
when double buffering is enabled on the ISO endpoint.
The fifo flush is removed for double buffering case.
The fifo is now flushed only in cases of error or when
aborting a transfer.

Also, In Host MSC case, data toggle errors are seen when double
buffering is enabled on the bulk endpoint. Whenever an URB is
programmed for transfer, the data toggle is set manually
resulting in data toggle errors on the bus. Leave the data
toggle handling upto the hardware in the double buffering case.

Signed-off-by: supriya karanth <supriya.karanth@stericsson.com>
Signed-off-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-17 15:45:44 +02:00
Sergei Shtylyov
8df4ce7518 usb: musb: omap2430: kill redundant assignments in omap2430_probe()
Commit 00a0b1d58a (usb: musb: omap: Add device
tree support for omap musb glue) added assignments of the 'ret' variable to
-ENOMEM on *some* error paths of the calls to devm_kzalloc(), while that
variable was already pre-initialized for to that value, so these assignments
were completely redundant. Kill them, fixing overindented string, while at it.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-17 15:45:43 +02:00
Fabio Baltieri
99d17cfa3b usb: musb: ux500: use clk_prepare_enable and clk_disable_unprepare
This patch converts the module to use clk_prepare_enable and
clk_disable_unprepare variants as required by common clock framework.

Without this the system crash during probe function.

Cc: <stable@vger.kernel.org> # v3.7 v3.8
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-17 15:45:32 +02:00
supriya karanth
f278628193 usb: musb: set AUTOSET for full speed bulk DMA transfer in host mode
The "mult" factor is not updated properly for the can_bulk_split()
case.

The AUTOSET bit in the TXCSR is not being set if the "mult"
factor is greater than 1 for the High Bandwidth ISO case.
But the "mult" factor is also greater than 1 in case of Full speed
bulk transfers with the packet splitting in TXMAXP register
enabled with can_bulk_split().

Without the AUTOSET the DMA transfers will not progress in mode1

[ balbi@ti.com : fix braces placement ]

Signed-off-by: supriya karanth <supriya.karanth@stericsson.com>
Signed-off-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-10 14:16:47 +02:00
supriya karanth
bb3a2ef2eb usb: musb: set TXMAXP and AUTOSET for full speed bulk in device mode
The TXMAXP register is not set correctly for full speed bulk case
when the can_bulk_split() is used. Without this PIO transfers will
not take place correctly

The "mult" factor needs to be updated correctly for the
can_bulk_split() case

The AUTOSET bit in the TXCSR is not being set if the "mult"
factor is greater than 0 for the High Bandwidth ISO case.
But the "mult" factor is also greater than 0 in case of Full speed
bulk transfers with the packet splitting in TXMAXP register

Without the AUTOSET the DMA transfers will not progress in mode1

[ balbi@ti.com : add braces to both branches ]

Signed-off-by: supriya karanth <supriya.karanth@stericsson.com>
Signed-off-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-10 14:15:19 +02:00
Sachin Kamat
7e56e621ce usb: musb: dsps: Remove duplicate inclusion of linux/of.h
linux/of.h was included twice.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-10 14:14:03 +02:00
Aaro Koskinen
80ab72e176 usb: musb: omap2430: fix the readiness check in omap_musb_mailbox
The check in omap_musb_mailbox does not properly check if the module has
been fully initialized. The patch fixes that, and the kernel panic below:

$ modprobe twl4030-usb
[   13.924743] twl4030_usb twl4030-usb.33: HW_CONDITIONS 0xe0/224; link 3
[   13.940307] Unable to handle kernel NULL pointer dereference at virtual address 00000004
[   13.948883] pgd = ef27c000
[   13.951751] [00000004] *pgd=af256831, *pte=00000000, *ppte=00000000
[   13.958374] Internal error: Oops: 17 [#1] ARM
[   13.962921] Modules linked in: twl4030_usb(+) omap2430 libcomposite
[   13.969543] CPU: 0    Not tainted  (3.8.0-rc1-n9xx-11758-ge37a37c-dirty #6)
[   13.976867] PC is at omap_musb_mailbox+0x18/0x54 [omap2430]
[   13.982727] LR is at twl4030_usb_probe+0x240/0x354 [twl4030_usb]
[   13.989013] pc : [<bf013b6c>]    lr : [<bf018958>]    psr: 60000013
[   13.989013] sp : ef273cf0  ip : ef273d08  fp : ef273d04
[   14.001068] r10: bf01b000  r9 : bf0191d8  r8 : 00000001
[   14.006530] r7 : 00000000  r6 : ef140e10  r5 : 00000003  r4 : 00000000
[   14.013397] r3 : bf0142dc  r2 : 00000006  r1 : 00000000  r0 : 00000003
[   14.020233] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   14.027740] Control: 10c5387d  Table: af27c019  DAC: 00000015
[   14.033752] Process modprobe (pid: 616, stack limit = 0xef272238)
[   14.040161] Stack: (0xef273cf0 to 0xef274000)
[   14.044708] 3ce0:                                     ef254310 00000001 ef273d34 ef273d08
[   14.053314] 3d00: bf018958 bf013b60 bf0190a4 ef254310 c0101550 c0c3a138 ef140e10 ef140e44
[   14.061889] 3d20: bf019150 00000001 ef273d44 ef273d38 c019890c bf018724 ef273d64 ef273d48
[   14.070495] 3d40: c01974fc c01988f8 ef140e10 bf019150 ef140e44 00000000 ef273d84 ef273d68
[   14.079071] 3d60: c0197728 c019748c c0197694 00000000 bf019150 c0197694 ef273dac ef273d88
[   14.087677] 3d80: c0195c38 c01976a0 ef03610c ef143eb0 c0128954 ef254780 bf019150 c0b19548
[   14.096252] 3da0: ef273dbc ef273db0 c0197098 c0195bf0 ef273dec ef273dc0 c0196c98 c0197080
[   14.104858] 3dc0: bf0190a4 c0b27bc0 ef273dec bf019150 bf019190 c0b27bc0 ef272000 00000001
[   14.113433] 3de0: ef273e14 ef273df0 c0197c18 c0196b30 ef273f48 bf019190 c0b27bc0 ef272000
[   14.122039] 3e00: 00000001 bf01b000 ef273e24 ef273e18 c0198b28 c0197ba4 ef273e34 ef273e28
[   14.130615] 3e20: bf01b014 c0198ae8 ef273e8c ef273e38 c0008918 bf01b00c c004f730 c012ba1c
[   14.139221] 3e40: ef273e74 00000000 c00505b0 c004f72c 00000000 ef273e60 ef273f48 bf019190
[   14.147796] 3e60: 00000001 ef273f48 bf019190 00000001 ef286340 00000001 bf0191d8 c0065414
[   14.156402] 3e80: ef273f44 ef273e90 c0067754 c00087fc bf01919c 00007fff c0064794 00000000
[   14.164978] 3ea0: ef273ecc f0064000 00000001 ef272000 ef272000 00067f39 bf0192b0 bf01919c
[   14.173583] 3ec0: ef273f0c ef273ed0 c00a6bf0 c00a53fc ff000000 000000d2 c0067dc8 00000000
[   14.182159] 3ee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   14.190765] 3f00: 00000000 00000000 00000000 00000000 00000000 00000000 ffffffff 00002968
[   14.199340] 3f20: 00080878 00067f39 00000080 c000e2e8 ef272000 00000000 ef273fa4 ef273f48
[   14.207946] 3f40: c0067e54 c0066188 f0064000 00002968 f0065530 f0065463 f0065fb0 000012c4
[   14.216522] 3f60: 00001664 00000000 00000000 00000000 00000014 00000015 0000000c 00000000
[   14.225128] 3f80: 00000008 00000000 00000000 00080370 00080878 0007422c 00000000 ef273fa8
[   14.233703] 3fa0: c000e140 c0067d80 00080370 00080878 00080878 00002968 00067f39 00000000
[   14.242309] 3fc0: 00080370 00080878 0007422c 00000080 00074030 00067f39 bec7aef8 00000000
[   14.250885] 3fe0: b6f05300 bec7ab68 0000e93c b6f05310 60000010 00080878 af7fe821 af7fec21
[   14.259460] Backtrace:
[   14.262054] [<bf013b54>] (omap_musb_mailbox+0x0/0x54 [omap2430]) from [<bf018958>] (twl4030_usb_probe+0x240/0x354 [twl4030_usb])
[   14.274200]  r5:00000001 r4:ef254310
[   14.277984] [<bf018718>] (twl4030_usb_probe+0x0/0x354 [twl4030_usb]) from [<c019890c>] (platform_drv_probe+0x20/0x24)
[   14.289123]  r8:00000001 r7:bf019150 r6:ef140e44 r5:ef140e10 r4:c0c3a138
[   14.296203] [<c01988ec>] (platform_drv_probe+0x0/0x24) from [<c01974fc>] (driver_probe_device+0x7c/0x214)
[   14.306243] [<c0197480>] (driver_probe_device+0x0/0x214) from [<c0197728>] (__driver_attach+0x94/0x98)
[   14.316009]  r7:00000000 r6:ef140e44 r5:bf019150 r4:ef140e10
[   14.321990] [<c0197694>] (__driver_attach+0x0/0x98) from [<c0195c38>] (bus_for_each_dev+0x54/0x88)
[   14.331390]  r6:c0197694 r5:bf019150 r4:00000000 r3:c0197694
[   14.337371] [<c0195be4>] (bus_for_each_dev+0x0/0x88) from [<c0197098>] (driver_attach+0x24/0x28)
[   14.346588]  r6:c0b19548 r5:bf019150 r4:ef254780
[   14.351440] [<c0197074>] (driver_attach+0x0/0x28) from [<c0196c98>] (bus_add_driver+0x174/0x244)
[   14.360687] [<c0196b24>] (bus_add_driver+0x0/0x244) from [<c0197c18>] (driver_register+0x80/0x154)
[   14.370086]  r8:00000001 r7:ef272000 r6:c0b27bc0 r5:bf019190 r4:bf019150
[   14.377136] [<c0197b98>] (driver_register+0x0/0x154) from [<c0198b28>] (platform_driver_register+0x4c/0x60)
[   14.387390] [<c0198adc>] (platform_driver_register+0x0/0x60) from [<bf01b014>] (twl4030_usb_init+0x14/0x1c [twl4030_usb])
[   14.398895] [<bf01b000>] (twl4030_usb_init+0x0/0x1c [twl4030_usb]) from [<c0008918>] (do_one_initcall+0x128/0x1a8)
[   14.409790] [<c00087f0>] (do_one_initcall+0x0/0x1a8) from [<c0067754>] (load_module+0x15d8/0x1bf8)
[   14.419189] [<c006617c>] (load_module+0x0/0x1bf8) from [<c0067e54>] (sys_init_module+0xe0/0xf4)
[   14.428344] [<c0067d74>] (sys_init_module+0x0/0xf4) from [<c000e140>] (ret_fast_syscall+0x0/0x30)
[   14.437652]  r6:0007422c r5:00080878 r4:00080370
[   14.442504] Code: e24cb004 e59f3038 e1a05000 e593401c (e5940004)
[   14.448944] ---[ end trace dbf47e5bc5ba03c2 ]---
[   14.453826] Kernel panic - not syncing: Fatal exception

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-10 14:13:37 +02:00
Greg Kroah-Hartman
e4602391e2 usb: fixes for v3.8-rc2
Here is the first set of fixes for v3.8-rc cycle.
 
 There is a build fix for musb's dsps glue layer caused
 by some header cleanup on the OMAP tree.
 
 Marvel's USB drivers got a fix up for clk API usage
 switching over to clk_prepare() calls.
 
 u_serial has a bug fix for a missing wake_up() which
 would make gs_cleanup() wait forever for gs_close()
 to finish.
 
 A minor bug fix on dwc3's debugfs interface which
 would make us read wrong addresses when dumping
 all registers.
 
 dummy_hcd learned how to enumerate g_multi.
 
 s3c-hsotg now understands that we shouldn't kfree()
 memory allocated with devm_*.
 
 Other than that, there are a bunch of other minor fixes
 on renesas_usbhs, tcm_usb_gadget and amd5536udc.
 
 All patches have been pending on mailing for many weeks
 and shouldn't cause any problems.
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Merge tag 'fixes-for-v3.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe says:
	usb: fixes for v3.8-rc2

	Here is the first set of fixes for v3.8-rc cycle.

	There is a build fix for musb's dsps glue layer caused
	by some header cleanup on the OMAP tree.

	Marvel's USB drivers got a fix up for clk API usage
	switching over to clk_prepare() calls.

	u_serial has a bug fix for a missing wake_up() which
	would make gs_cleanup() wait forever for gs_close()
	to finish.

	A minor bug fix on dwc3's debugfs interface which
	would make us read wrong addresses when dumping
	all registers.

	dummy_hcd learned how to enumerate g_multi.

	s3c-hsotg now understands that we shouldn't kfree()
	memory allocated with devm_*.

	Other than that, there are a bunch of other minor fixes
	on renesas_usbhs, tcm_usb_gadget and amd5536udc.

	All patches have been pending on mailing for many weeks
	and shouldn't cause any problems.
2013-01-07 10:09:49 -08:00
Matthew Leach
2bf0a8f67f usb: musb: use io{read,write}*_rep accessors
The {read,write}s{b,w,l} operations are not defined by all architectures
and are being removed from the asm-generic/io.h interface.

This patch replaces the usage of these string functions in the musb
accessors with io{read,write}{8,16,32}_rep calls instead.

Signed-off-by: Matthew Leach <matthew@mattleach.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ben Herrenschmidt <benh@kernel.crashing.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 17:15:13 -08:00
Matthew Leach
56c82cdc36 musb: tusb6010: use io{read,write}*_rep accessors
The {read,write}s{b,w,l} operations are not defined by all architectures
and are being removed from the asm-generic/io.h interface.

This patch replaces the usage of these string functions in the tusb6010
accessors with io{read,write}{8,16,32}_rep calls instead.

Signed-off-by: Matthew Leach <matthew@mattleach.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ben Herrenschmidt <benh@kernel.crashing.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 17:15:13 -08:00
Linus Torvalds
a11da7df65 ARM: arm-soc: power management and clock changes
This branch contains a largeish set of updates of power management and
 clock setup. The bulk of it is for OMAP/AM33xx platforms, but also a
 few around hotplug/suspend/resume on Exynos.
 
 It includes a split-up of some of the OMAP clock data into separate
 files which adds to the diffstat, but gross delta is fairly reasonable.
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Merge tag 'pm-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC power management and clock changes from Olof Johansson:
 "This branch contains a largeish set of updates of power management and
  clock setup.  The bulk of it is for OMAP/AM33xx platforms, but also a
  few around hotplug/suspend/resume on Exynos.

  It includes a split-up of some of the OMAP clock data into separate
  files which adds to the diffstat, but gross delta is fairly reasonable."

* tag 'pm-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (60 commits)
  ARM: OMAP: Move plat-omap/dma-omap.h to include/linux/omap-dma.h
  ASoC: OMAP: mcbsp fixes for enabling ARM multiplatform support
  watchdog: OMAP: fixup for ARM multiplatform support
  ARM: EXYNOS: Add flush_cache_all in suspend finisher
  ARM: EXYNOS: Remove scu_enable from cpuidle
  ARM: EXYNOS: Fix soft reboot hang after suspend/resume
  ARM: EXYNOS: Add support for rtc wakeup
  ARM: EXYNOS: fix the hotplug for Cortex-A15
  ARM: OMAP2+: omap_device: Correct resource handling for DT boot
  ARM: OMAP2+: hwmod: Add possibility to count hwmod resources based on type
  ARM: OMAP2+: hwmod: Add support for per hwmod/module context lost count
  ARM: OMAP2+: PRM: initialize some PRM functions early
  ARM: OMAP2+: voltage: fixup oscillator handling when CONFIG_PM=n
  ARM: OMAP4: USB: power down MUSB PHY during boot
  ARM: OMAP2+: clock: Cleanup !CONFIG_COMMON_CLK parts
  ARM: OMAP2xxx: clock: drop obsolete clock data
  ARM: OMAP2: clock: Cleanup !CONFIG_COMMON_CLK parts
  ARM: OMAP3+: DPLL: drop !CONFIG_COMMON_CLK sections
  ARM: AM33xx: clock: drop obsolete clock data
  ARM: OMAP3xxx: clk: drop obsolete clock data
  ...
2012-12-13 10:58:20 -08:00
Sergei Shtylyov
2ac788f705 usb: musb: core: print new line in the driver banner again
Commit 5c8a86e10a (usb: musb: drop unneeded
musb_debug trickery) erroneously removed '\n' from the driver's banner.
Concatenate all the banner substrings while adding it back...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: stable@vger.kernel.org # 3.0+
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-12-13 12:05:07 +02:00
Afzal Mohammed
deeeb9ee1e usb: musb: dsps: header movement build error fix
"54db6ee ARM: OMAP2+: Introduce local usb.h" moved control module bit
definitions from plat/usb.h (which dsps glue was using) to a local
header in mach-omap2. And in parallel,
"c68bb4c usb: musb: dsps: control module handling (quirk)" added
control module handling capability to dsps glue driver that used
those control module bit definitions.

Integration of above two changes would cause build error in musb dsps
glue driver (they go through different trees upstream) as is seen now
in linux-next. Fix it by adding necessary definitions in dsps glue
driver.

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-12-13 11:59:02 +02:00
Linus Torvalds
8287361abc ARM: arm-soc: Header cleanups
This is a collection of header file cleanups, mostly for OMAP and AT91,
 that keeps moving the platforms in the direction of multiplatform by
 removing the need for mach-dependent header files used in drivers and
 other places.
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Merge tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC Header cleanups from Olof Johansson:
 "This is a collection of header file cleanups, mostly for OMAP and
  AT91, that keeps moving the platforms in the direction of
  multiplatform by removing the need for mach-dependent header files
  used in drivers and other places."

Fix up mostly trivial conflicts as per Olof.

* tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (106 commits)
  ARM: OMAP2+: Move iommu/iovmm headers to platform_data
  ARM: OMAP2+: Make some definitions local
  ARM: OMAP2+: Move iommu2 to drivers/iommu/omap-iommu2.c
  ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h
  ARM: OMAP2+: Move iopgtable header to drivers/iommu/
  ARM: OMAP: Merge iommu2.h into iommu.h
  atmel: move ATMEL_MAX_UART to platform_data/atmel.h
  ARM: OMAP: Remove omap_init_consistent_dma_size()
  arm: at91: move at91rm9200 rtc header in drivers/rtc
  arm: at91: move reset controller header to arm/arm/mach-at91
  arm: at91: move pit define to the driver
  arm: at91: move at91_shdwc.h to arch/arm/mach-at91
  arm: at91: move board header to arch/arm/mach-at91
  arn: at91: move at91_tc.h to arch/arm/mach-at91
  arm: at91 move at91_aic.h to arch/arm/mach-at91
  arm: at91 move board.h to arch/arm/mach-at91
  arm: at91: move platfarm_data to include/linux/platform_data/atmel.h
  arm: at91: drop machine defconfig
  ARM: OMAP: Remove NEED_MACH_GPIO_H
  ARM: OMAP: Remove unnecessary mach and plat includes
  ...
2012-12-12 11:45:16 -08:00
Olof Johansson
48d224d1ef Remaining patches to allow omap2+ to build with multiplatform
enabled. Unfortunately the DMA header patch had to be redone
 to avoid adding new multiplatform specific include paths, the
 other patches are just trivial compile fixes.
 
 Note that this does not yet contain the necessary Kconfig
 changes as we are still waiting for some drivers to get
 fixed up first.
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Merge tag 'tags/omap-for-v3.8/cleanup-multiplatform-no-clock-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm2

From Tony Lindgren:
Remaining patches to allow omap2+ to build with multiplatform
enabled. Unfortunately the DMA header patch had to be redone
to avoid adding new multiplatform specific include paths, the
other patches are just trivial compile fixes.

Note that this does not yet contain the necessary Kconfig
changes as we are still waiting for some drivers to get
fixed up first.

* tag 'tags/omap-for-v3.8/cleanup-multiplatform-no-clock-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP: Move plat-omap/dma-omap.h to include/linux/omap-dma.h
  ASoC: OMAP: mcbsp fixes for enabling ARM multiplatform support
  watchdog: OMAP: fixup for ARM multiplatform support

Conflicts due to surrounding changes in:
	arch/arm/mach-omap2/omap_hwmod_2420_data.c
	arch/arm/mach-omap2/omap_hwmod_2430_data.c

Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-30 21:47:21 -08:00
Tony Lindgren
45c3eb7d3a ARM: OMAP: Move plat-omap/dma-omap.h to include/linux/omap-dma.h
Based on earlier discussions[1] we attempted to find a suitable
location for the omap DMA header in commit 2b6c4e73 (ARM: OMAP:
DMA: Move plat/dma.h to plat-omap/dma-omap.h) until the conversion
to dmaengine is complete.

Unfortunately that was before I was able to try to test compile
of the ARM multiplatform builds for omap2+, and the end result
was not very good.

So I'm creating yet another all over the place patch to cut the
last dependency for building omap2+ for ARM multiplatform. After
this, we have finally removed the driver dependencies to the
arch/arm code, except for few drivers that are being worked on.

The other option was to make the <plat-omap/dma-omap.h> path
to work, but we'd have to add some new header directory to for
multiplatform builds.

Or we would have to manually include arch/arm/plat-omap/include
again from arch/arm/Makefile for omap2+.

Neither of these alternatives sound appealing as they will
likely lead addition of various other headers exposed to the
drivers, which we want to avoid for the multiplatform kernels.

Since we already have a minimal include/linux/omap-dma.h,
let's just use that instead and add a note to it to not
use the custom omap DMA functions any longer where possible.

Note that converting omap DMA to dmaengine depends on
dmaengine supporting automatically incrementing the FIFO
address at the device end, and converting all the remaining
legacy drivers. So it's going to be few more merge windows.

[1] https://patchwork.kernel.org/patch/1519591/#

cc: Russell King <linux@arm.linux.org.uk>
cc: Kevin Hilman <khilman@ti.com>
cc: "Benoît Cousson" <b-cousson@ti.com>
cc: Herbert Xu <herbert@gondor.apana.org.au>
cc: "David S. Miller" <davem@davemloft.net>
cc: Vinod Koul <vinod.koul@intel.com>
cc: Dan Williams <djbw@fb.com>
cc: Mauro Carvalho Chehab <mchehab@infradead.org>
cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
cc: David Woodhouse <dwmw2@infradead.org>
cc: Kyungmin Park <kyungmin.park@samsung.com>
cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
cc: Hans Verkuil <hans.verkuil@cisco.com>
cc: Vaibhav Hiremath <hvaibhav@ti.com>
cc: Lokesh Vutla <lokeshvutla@ti.com>
cc: Rusty Russell <rusty@rustcorp.com.au>
cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
cc: Afzal Mohammed <afzal@ti.com>
cc: linux-crypto@vger.kernel.org
cc: linux-media@vger.kernel.org
cc: linux-mtd@lists.infradead.org
cc: linux-usb@vger.kernel.org
cc: linux-fbdev@vger.kernel.org
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-11-30 08:41:50 -08:00
Olof Johansson
0f9cb211ba Linux 3.7-rc7
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Merge tag 'v3.7-rc7' into next/cleanup

Merging in mainline back to next/cleanup since it has collected a few
conflicts between fixes going upstream and some of the cleanup patches.
Git doesn't auto-resolve some of them, and they're mostly noise so let's
take care of it locally.

Conflicts are in:
	arch/arm/mach-omap2/omap_hwmod_44xx_data.c
	arch/arm/plat-omap/i2c.c
	drivers/video/omap2/dss/dss.c

Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-25 21:34:34 -08:00
Bill Pemberton
fb4e98ab63 usb: remove use of __devexit
CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Li Yang <leoli@freescale.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21 13:27:17 -08:00
Bill Pemberton
2f82686e8c usb: remove use of __devinitconst
CONFIG_HOTPLUG is going away as an option so __devinitconst is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Li Yang <leoli@freescale.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21 13:27:16 -08:00
Bill Pemberton
d3608b6daf usb: remove use of __devinitdata
CONFIG_HOTPLUG is going away as an option so __devinitdata is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21 13:27:16 -08:00
Bill Pemberton
41ac7b3ab7 usb: remove use of __devinit
CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Li Yang <leoli@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Olav Kongas <ok@artecdesign.ee>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21 13:27:16 -08:00