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Greg Kroah-Hartman ce15bda101 usb: changes for v4.7 merge window
Here's the big USB Gadget pull request. This time
 not as large as usual with only 57 non-merge
 commits.
 
 The most important part here is, again, all the work
 on dwc3. This time around we're treating all
 endpoints (except for control endpoint) exactly the
 same. They all have the same amount of TRBs on the
 ring, they all treat the ring as an actual ring with
 a link TRB pointing to the head, etc.
 
 We're also helping the host side burst (on
 SuperSpeed GEN1 or GEN2 at least) for as long as
 possible until the endpoint returns NRDY.
 
 Other than this big TRB ring rework on dwc3, we also
 have a dwc3-omap DMA initialization fix, some extra
 debugfs files to aid in some odd debug sessions and
 a complete removal of our FIFO resizing logic.
 
 We have a new quirk for some dwc3 P3 quirk in some
 implementations.
 
 The rest is basically non-critical fixes and the
 usual cleanups.
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Merge tag 'usb-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: changes for v4.7 merge window

Here's the big USB Gadget pull request. This time
not as large as usual with only 57 non-merge
commits.

The most important part here is, again, all the work
on dwc3. This time around we're treating all
endpoints (except for control endpoint) exactly the
same. They all have the same amount of TRBs on the
ring, they all treat the ring as an actual ring with
a link TRB pointing to the head, etc.

We're also helping the host side burst (on
SuperSpeed GEN1 or GEN2 at least) for as long as
possible until the endpoint returns NRDY.

Other than this big TRB ring rework on dwc3, we also
have a dwc3-omap DMA initialization fix, some extra
debugfs files to aid in some odd debug sessions and
a complete removal of our FIFO resizing logic.

We have a new quirk for some dwc3 P3 quirk in some
implementations.

The rest is basically non-critical fixes and the
usual cleanups.
2016-04-28 09:32:39 -07:00
Roger Quadros af566a0be6 usb: dwc3: omap: get rid of dma_status
dma_status bit flag is set but never really used
so get rid of it.

Reported-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19 11:11:53 +03:00
Grygorii Strashko 495dd5f781 usb: dwc3: omap: drop dma_mask configuration
The DWC3 OMAP driver supports DT-boot only, as result dma_mask will be
always configured properly from DT -
of_platform_device_create_pdata()->of_dma_configure(). More over,
dwc3-omap.c can be built as module and in this case it's unsafe to
assign local variable as dma_mask.

Hence, remove dma_mask configuration code.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-18 15:23:45 +03:00
Felipe Balbi 45d49cb706 usb: dwc3: omap: fix up error path on probe()
Even if pm_runtime_get*() fails, we *MUST* call
pm_runtime_put_sync() before disabling PM.

While at it, remove superfluous dwc3_omap_disable_irqs()
in error path.

Signed-off-by: Felipe Balbi <balbi@kernel.org>
[nsekhar@ti.com: patch description updates]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-18 12:35:17 +03:00
Felipe Balbi e2ae0692bf usb: dwc3: omap: enable irqs lately
If we enable IRQs before requesting our
extcon device, we might fall into a situation
where and IRQ fires before we're ready to
handle it.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-14 09:51:58 -05:00
Chanwoo Choi 5960387a2f usb: dwc3: omap: Replace deprecated API of extcon
This patch removes the deprecated notifier API of extcon framwork
and then use the new extcon API with the unique id to indicate
the each external connector (USB, USB-HOST).

Alter deprecated API as following:
- extcon_register_interest() -> extcon_register_notifier()
- extcon_get_cable_state(*edev, char *) -> extcon_get_cable_state_(*edev, id)

Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:18 -05:00
Felipe Balbi e4f7566754 usb: dwc3: omap: drop dev_dbg() usage
Some of the messages were plain unnecessary
and some were actually errors. Fix it all
up.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:17 -05:00
Bin Liu 2283219040 usb: dwc3: dwc3-omap: correct the register macros
The macros related to register UTMI_OTG_CTRL and UTMI_OTG_STATUS are
swapped. Correct them for readability.

Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-04-27 14:36:52 -05:00
Felipe Balbi 3d0184d087 usb: dwc3: omap: call of_platform_depopulate() instead
This patch fixes a bug where removing dwc3-omap.ko
would not trigger removal of dwc3.ko.

of_platform_depopulate() already bakes an easy to
use API for removing all our children which were
populated during probe(); Let's use that one instead
of cooking our own solution.

Note that this is kind of a revert of commit c5a1fbc
(usb: dwc3: dwc3-omap: Fix the crash on module removal)
although we can't simply revert that because a direct
call to platform_device_unregister would also be flakey.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-09 10:38:49 -05:00
George Cherian 96e5d31244 usb: dwc3: dwc3-omap: Fix disable IRQ
In the wrapper the IRQ disable should be done by writing 1's to the
IRQ*_CLR register. Existing code is broken because it instead writes
zeros to IRQ*_SET register.

Fix this by adding functions dwc3_omap_write_irqmisc_clr() and
dwc3_omap_write_irq0_clr() which do the right thing.

Fixes: 72246da40f ("usb: Introduce DesignWare USB3 DRD Driver")
Cc: <stable@vger.kernel.org> # v3.2+
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-02-23 09:36:34 -06:00
George Cherian 7ee2566ff5 usb: dwc3: dwc3-omap: get rid of ->prepare()/->complete()
Enabling the core interrupts in complete is too late for
XHCI, and stops it from proper operation. The root of the
problem is due to a disagreement between dwc3-omap and XHCI
about when IRQs should be enabled.

As it turns out, ->resume's documentation states that:

"... generally the driver is expected to start working
again, responding to hardware events and software requests
(the device itself may be left in a low-power state, waiting
for a runtime resume to occur) ..."

From that we infer that IRQs must be unmasked by the end of
->resume().

Due to that, we will remove ->prepare() and ->complete() and
disable/enable interrupts in ->suspend()/->resume().

Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-03 10:00:58 -06:00
Roger Quadros b01ff5cb2f Revert "usb: dwc3: dwc3-omap: Disable/Enable only wrapper interrupts in prepare/complete"
This reverts commit 02dae36aa6.

That commit is bogus in two ways:

1) There's no way dwc3-omap's ->suspend() can cause any effect
	on xhci's ->suspend(). Linux device driver model guarantees
	that a parent's ->suspend() will only be called after all
	children are suspended. dwc3-omap is the parent of the
	parent of xhci.

2) When implementing Deep Sleep states where context is lost,
	USBOTGSS_IRQ0 register, well, looses context so we
	_must_ rewrite it otherwise core IRQs will never be
	reenabled and USB will appear to be dead.

Fixes: 02dae36 (usb: dwc3: dwc3-omap: Disable/Enable only
	wrapper interrupts in prepare/complete)
Cc: <stable@vger.kernel.org> # v3.17
Cc: George Cherian <george.cherian@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-10-23 09:55:41 -05:00
Felipe Balbi 4cd41ffd27 Linux 3.17-rc5
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Merge tag 'v3.17-rc5' into next

Linux 3.17-rc5

Signed-off-by: Felipe Balbi <balbi@ti.com>

Conflicts:
	Documentation/devicetree/bindings/usb/mxs-phy.txt
	drivers/usb/phy/phy-mxs-usb.c
2014-09-16 09:53:59 -05:00
Felipe Balbi f7cc38b16e Linux 3.17-rc4
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Merge tag 'v3.17-rc4' into next

Merge Linux 3.17-rc4 here so we have all the latest
fixes on next too. This also cleans up a few conflicts
when applying patches.

Signed-off-by: Felipe Balbi <balbi@ti.com>

Conflicts:
	drivers/usb/gadget/Makefile
	drivers/usb/gadget/function/Makefile
	drivers/usb/gadget/legacy/Makefile
	drivers/usb/phy/phy-samsung-usb.h
2014-09-08 14:39:01 -05:00
Felipe Balbi 81a60b7f5c usb: dwc3: omap: fix ordering for runtime pm calls
we don't to gate clocks until our children are
done with their remove path.

Fixes: af310e9 (usb: dwc3: omap: use runtime API's to enable clocks)
Cc: <stable@vger.kernel.org> # v3.9+
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-03 16:50:44 -05:00
Jingoo Han 734d5a5393 usb: dwc3: remove unnecessary OOM messages
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-20 12:14:45 -05:00
Dan Carpenter 788b0bc465 usb: dwc3: omap: signedness bug in dwc3_omap_set_utmi_mode()
"ret" should be signed.  It's only used for zero and negative error
codes.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-19 09:24:48 -05:00
Greg Kroah-Hartman 61fe2d75f1 usb: patches for v3.17 merge window
Surprisingly enough, while a big set of patches, the majority is
 composed of cleanups (using devm_*, fixing sparse errors, moving
 code around, adding const, etc).
 
 The highlights are addition of new support for PLX USB338x devices,
 and support for USB 2.0-only configurations of the DWC3 IP core.
 
 Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v3.17 merge window

Surprisingly enough, while a big set of patches, the majority is
composed of cleanups (using devm_*, fixing sparse errors, moving
code around, adding const, etc).

The highlights are addition of new support for PLX USB338x devices,
and support for USB 2.0-only configurations of the DWC3 IP core.

Signed-of-by: Felipe Balbi <balbi@ti.com>
2014-07-21 11:33:41 -07:00
George Cherian 025b431b0e usb: dwc3: omap: add dwc3_omap_extcon_register function
Move the extcon related code to its own function.
Improve code readability, decrease the dwc3_probe() size.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-07-16 09:57:11 -05:00
George Cherian d2f0cf89ca usb: dwc3: omap: add dwc3_omap_set_utmi_mode() function
Move find and set the utmi mode to its own separate function.
Improve code readability, decrease the dwc3_probe() size.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-07-16 09:57:01 -05:00
George Cherian 30fef1a97f usb: dwc3: omap: add dwc3_omap_map_offset() function
Move map offset to its own separate function.
Improve code readability, decrease the dwc3_probe() size.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-07-16 09:56:49 -05:00
George Cherian ca632a0d2f usb: dwc3: omap: remove x_major calculation from revision register
Remove the x_major calculation logic from the wrapper revision register
to differentiate between OMAP5 and AM437x. This was done to find the
register offsets of wrapper register. Now that We do it using dt
compatible, remove the whole logic.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-07-16 09:35:30 -05:00
George Cherian 02dae36aa6 usb: dwc3: dwc3-omap: Disable/Enable only wrapper interrupts in prepare/complete
The dwc3 wrapper driver should not be fiddling with the core interrupts.
Disabling the core interrupts in prepare stops xhci from proper operation.
So remove disable/enable of core interrupts from prepare/complete.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-06-19 10:06:45 -05:00
George Cherian c5a1fbca6f usb: dwc3: dwc3-omap: Fix the crash on module removal
Following crash is seen on dwc3_omap removal
Unable to handle kernel NULL pointer dereference at virtual address 00000018
pgd = ec098000
[00000018] *pgd=ad1f9831, *pte=00000000, *ppte=00000000
Internal error: Oops: 17 [#1] SMP ARM
Modules linked in: usb_f_ss_lb g_zero usb_f_acm u_serial usb_f_ecm u_ether libcomposite configfs snd_usb_audio snd_usbmidi_lib snd_rawmidi snd_hwdep snd_soc_omap snd_pcm_dmaengine snd_soc_core snd_compress snd_pcm snd_tim]
CPU: 0 PID: 1296 Comm: rmmod Tainted: G        W     3.15.0-rc4-02716-g95c4e18-dirty #10
task: ed05a080 ti: ec368000 task.ti: ec368000
PC is at release_resource+0x14/0x7c
LR is at release_resource+0x10/0x7c
pc : [<c0044724>]    lr : [<c0044720>]    psr: 60000013
sp : ec369ec0  ip : 60000013  fp : 00021008
r10: 00000000  r9 : ec368000  r8 : c000e7a4
r7 : 00000081  r6 : bf0062c0  r5 : ed7cd000  r4 : ed7d85c0
r3 : 00000000  r2 : 00000000  r1 : 00000011  r0 : c086d08c
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c5387d  Table: ac098059  DAC: 00000015
Process rmmod (pid: 1296, stack limit = 0xec368248)
Stack: (0xec369ec0 to 0xec36a000)
9ec0: 00000000 00000001 ed7cd000 c034de94 ed7cd010 ed7cd000 00000000 c034e194
9ee0: 00000000 bf0062cc ed7cd010 c03490b0 ed154cc0 ed4c2570 ed2b8410 ed156810
ed156810 bf006d24 c034db9c c034db84 c034c518
9f20: bf006d24 ed156810 bf006d24 c034cd2c bf006d24 bf006d68 00000800 c034c340
9f40: 00000000 c00a9e5c 00000020 00000000 bf006d68 00000800 ec369f4c 33637764
9f60: 616d6f5f 00000070 00000001 ec368000 ed05a080 c000e670 00000001 c0084010
9f80: 00021088 00000800 00021088 00000081 80000010 0000e6f4 00021088 00000800
9fa0: 00021088 c000e5e0 00021088 00000800 000210b8 00000800 e04f6d00 e04f6d00
9fc0: 00021088 00000800 00021088 00000081 00000001 00000000 be91de08 00021008
9fe0: 4d768880 be91dbb4 b6fc5984 4d76888c 80000010 000210b8 00000000 00000000
[<c0044724>] (release_resource) from [<c034de94>] (platform_device_del+0x6c/0x9c)
[<c034de94>] (platform_device_del) from [<c034e194>] (platform_device_unregister+0xc/0x18)
[<c034e194>] (platform_device_unregister) from [<bf0062cc>] (dwc3_omap_remove_core+0xc/0x14 [dwc3_omap])
[<bf0062cc>] (dwc3_omap_remove_core [dwc3_omap]) from [<c03490b0>] (device_for_each_child+0x34/0x74)
[<c03490b0>] (device_for_each_child) from [<bf0062b4>] (dwc3_omap_remove+0x6c/0x78 [dwc3_omap])
[<bf0062b4>] (dwc3_omap_remove [dwc3_omap]) from [<c034db9c>] (platform_drv_remove+0x18/0x1c)
[<c034db9c>] (platform_drv_remove) from [<c034c518>] (__device_release_driver+0x70/0xc8)
[<c034c518>] (__device_release_driver) from [<c034cd2c>] (driver_detach+0xb4/0xb8)
[<c034cd2c>] (driver_detach) from [<c034c340>] (bus_remove_driver+0x4c/0x90)
[<c034c340>] (bus_remove_driver) from [<c00a9e5c>] (SyS_delete_module+0x10c/0x198)
[<c00a9e5c>] (SyS_delete_module) from [<c000e5e0>] (ret_fast_syscall+0x0/0x48)
Code: e1a04000 e59f0068 eb14505e e5943010 (e5932018)
---[ end trace 7e2a8746ff4fc811 ]---
Segmentation fault

[ balbi@ti.com : add CONFIG_OF dependency ]

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-06-19 10:06:28 -05:00
Andy Shevchenko b09e99ee7c usb: dwc3: no need to initialize ret variable
First usage of ret variable will re-write initial value. Thus, there is no need
to initialize it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-15 10:26:21 -05:00
Linus Torvalds 3e75c6de1a USB patches for 3.15-rc1
Here's the big USB pull request for 3.15-rc1.
 
 The normal set of patches, lots of controller driver updates, and a
 smattering of individual USB driver updates as well.
 
 All have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB patches from Greg KH:
 "Here's the big USB pull request for 3.15-rc1.

  The normal set of patches, lots of controller driver updates, and a
  smattering of individual USB driver updates as well.

  All have been in linux-next for a while"

* tag 'usb-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (249 commits)
  xhci: Transition maintainership to Mathias Nyman.
  USB: disable reset-resume when USB_QUIRK_RESET is set
  USB: unbind all interfaces before rebinding any
  usb: phy: Add ulpi IDs for SMSC USB3320 and TI TUSB1210
  usb: gadget: tcm_usb_gadget: stop format strings
  usb: gadget: f_fs: add missing spinlock and mutex unlock
  usb: gadget: composite: switch over to ERR_CAST()
  usb: gadget: inode: switch over to memdup_user()
  usb: gadget: f_subset: switch over to PTR_RET
  usb: gadget: lpc32xx_udc: fix wrong clk_put() sequence
  USB: keyspan: remove dead debugging code
  USB: serial: add missing newlines to dev_<level> messages.
  USB: serial: add missing braces
  USB: serial: continue to write on errors
  USB: serial: continue to read on errors
  USB: serial: make bulk_out_size a lower limit
  USB: cypress_m8: fix potential scheduling while atomic
  devicetree: bindings: document lsi,zevio-usb
  usb: chipidea: add support for USB OTG controller on LSI Zevio SoCs
  usb: chipidea: imx: Use dev_name() for ci_hdrc name to distinguish USBs
  ...
2014-04-01 17:06:09 -07:00
Chanwoo Choi 1ad94ffef2 extcon: Move OF helper function to extcon core and change function name
This patch move simply OF helper function to extcon core and change function
name as following:
- of_extcon_get_extcon_dev() -> extcon_get_edev_by_phandle()

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
2014-03-19 14:41:58 +09:00
Wolfram Sang 30bbae9fad usb: dwc3: omap: don't check resource with devm_ioremap_resource
devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-02-18 10:52:54 -06:00
Felipe Balbi c6d7641470 usb: dwc3: omap: remove unnecessary lock
the lock was only taken inside the hardirq
handler, which runs with IRQs disabled. There's
no chance of any race condition happening, even
on SMP machines. It's safe to remove that
spinlock.

Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-09 10:01:40 -06:00
George Cherian e0a6104e06 usb: dwc3: dwc3-omap: return PROBE_DEFER if extcon is missing and found in dt
Due to inter dependencies of I2C and extcon by the time dwc3
checks for extcon device its not registered especially in case of J6.
In O5 the vbus regulator save us from getting to this point.
So for tiime being return PROBE_DEFER if extcon is enabled in dt.

Signed-off-by: George Cherian <george.cherian@ti.com>
2013-11-26 10:35:15 -06:00
Linus Torvalds 1d1fdd95df Char/Misc patches for 3.12-rc1
Here is the big char/misc driver pull request for 3.12-rc1
 
 Lots of driver updates all over the char/misc tree, full details in the
 shortlog below.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc patches from Greg KH:
 "Here is the big char/misc driver pull request for 3.12-rc1

  Lots of driver updates all over the char/misc tree, full details in
  the shortlog"

* tag 'char-misc-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (62 commits)
  drivers: uio: Kconfig: add MMU dependancy for UIO
  drivers: uio: Add driver for Humusoft MF624 DAQ PCI card
  drivers: uio_pdrv_genirq: use dev_get_platdata()
  drivers: uio_pruss: use dev_get_platdata()
  drivers: uio_dmem_genirq: use dev_get_platdata()
  drivers: parport: Kconfig: exclude h8300 for PARPORT_PC
  drivers: misc: ti-st: fix potential race if st_kim_start fails
  Drivers: hv: vmbus: Do not attempt to negoatiate a new version prematurely
  misc: vmw_balloon: Remove braces to fix build for clang.
  Drivers: hv: vmbus: Fix a bug in the handling of channel offers
  vme: vme_ca91cx42.c: fix to pass correct device identity to free_irq()
  VMCI: Add support for virtual IOMMU
  VMCI: Remove non-blocking/pinned queuepair support
  uio: uio_pruss: remove unnecessary platform_set_drvdata()
  parport: amiga: remove unnecessary platform_set_drvdata()
  vme: vme_vmivme7805.c: add missing __iomem annotation
  vme: vme_ca91cx42.c: add missing __iomem annotation
  vme: vme_tsi148.c: add missing __iomem annotation
  drivers/misc/hpilo: Correct panic when an AUX iLO is detected
  uio: drop unused vma_count member in uio_device struct
  ...
2013-09-03 11:36:27 -07:00
Kishon Vijay Abraham I 8061ad7239 usb: dwc3: use extcon fwrk to receive connect/disconnect
Modified dwc3-omap to receive connect and disconnect notification using
extcon framework. Also did the necessary cleanups required after
adapting to extcon framework.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2013-08-05 08:53:33 +09:00
Felipe Balbi 8bbcd17d6b usb: dwc3: omap: switch over to devm_ioremap_resource()
use the new devm_ioremap_resource on dwc3-omap.c

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-29 13:56:53 +03:00
Felipe Balbi 5945f789c8 usb: dwc3: switch to GPL v2 only
This is a Linux-only driver which makes use
of GPL-only symbols. It makes no sense to
maintain Dual BSD/GPL licensing for this driver.

Considering that the amount of work to use this
driver in any different operating system would likely
be as large as developing the driver from scratch and
considering that we depend on GPL-only symbols, we
will switch over to a GPL v2-only license.

Cc: Anton Tikhomirov <av.tikhomirov@samsung.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-29 13:56:44 +03:00
George Cherian b1fd6cb5ee usb: dwc3: omap: Adds dwc3_omap_readl/writel wrappers
This patch adds wrappers to dwc3_omap_readl/writel calls to accomodate
both OMAP5 and AM437x reg maps (It uses the cached register offsets).
Also renames OMAP5 IRQ1 as IRQMISC and IRQ1 bits as IRQMISC bits.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-06-12 23:57:13 +03:00
George Cherian ff7307b534 usb: dwc3: omap: initialize the register offset values for omap5 and AM437x
This patch Initializes the register offset values depending
on the X_MAJOR of USBOTGSS_REVISION register. Also adds register
offset defines and new debug register defines.

X_MAJOR is 2 for both OMAP5 and AM437x. But both have different
glue register layout. Differentiate AM437x using dt compatible.

Register offsets are cached in dwc3_omap struct for reg reads
and writes.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-06-12 23:57:13 +03:00
George Cherian 1e2a064c7f usb: dwc3: omap: Adding am437x specific register map changes
AM437x and OMAP5 dwc3 subsytem have different register map.
Major differences are as follows.

OMAP5 has one main interrupt and one misc interrupt
Aegis has four main interrupts and one misc interrupt.

Miscellanous Interrupt offsets are changed.
UTMI OTG Control and Status Registers offsets are changed.
DEBUG Configuration and Status Registers are changed.

The main intend of the patch is to re-use the same wrapper driver
for both OMAP5 and AM437x, by using the x_major in revision
register and adjusting the offsets.

This patch adds the register map offsets and adds offset variables
in struct dwc3_omap to cache the offsets

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-06-12 23:57:12 +03:00
Kishon Vijay Abraham I 594daba1bc usb: dwc3: omap: improve error handling of dwc3_omap_probe
Improved the error handling of dwc3_omap_probe so that on error
conditions dwc3_omap is left in the original state.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-06-12 23:57:11 +03:00
Jingoo Han 19fda7cd59 usb: dwc3: add CONFIG_PM_SLEEP to suspend/resume functions
Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following
build warning when CONFIG_PM_SLEEP is not selected. This is because
sleep PM callbacks defined by SET_SYSTEM_SLEEP_PM_OPS are only used
when the CONFIG_PM_SLEEP is enabled. Unnecessary CONFIG_PM ifdefs
are removed.

drivers/usb/dwc3/core.c:682:12: warning: 'dwc3_suspend' defined but not used [-Wunused-function]
drivers/usb/dwc3/core.c:709:12: warning: 'dwc3_resume' defined but not used [-Wunused-function]
drivers/usb/dwc3/dwc3-omap.c:430:12: warning: 'dwc3_omap_suspend' defined but not used [-Wunused-function]
drivers/usb/dwc3/dwc3-omap.c:440:12: warning: 'dwc3_omap_resume' defined but not used [-Wunused-function]
drivers/usb/dwc3/dwc3-exynos.c:185:12: warning: 'dwc3_exynos_suspend' defined but not used [-Wunused-function]
drivers/usb/dwc3/dwc3-exynos.c:194:12: warning: 'dwc3_exynos_resume' defined but not used [-Wunused-function]

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-04-02 11:42:51 +03:00
Felipe Balbi a33bb21208 usb: dwc3: omap: fix sparse warning
our global '_omap' pointer wasn't marked
static. This patch solves the following sparse
warning:

	warning: symbol '_omap' was not declared. \
	Should it be static?

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:18:24 +02:00
Kishon Vijay Abraham I 2ba7943af0 usb: dwc3: dwc3-omap: return -EPROBE_DEFER if probe has not yet executed
return -EPROBE_DEFER from dwc3_omap_mailbox in dwc3-omap.c, if the probe of
dwc3-omap has not yet been executed or failed.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:18:14 +02:00
Kishon Vijay Abraham I ddff14f1ab usb: dwc3: set dma_mask for dwc3_omap device
*dma_mask* is not set for devices created from dt data. So filled dma_mask
for dwc3_omap device here. And dwc3 core will copy the dma_mask from its
parent.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:18:14 +02:00
Felipe Balbi f3e117f443 usb: dwc3: omap: add basic suspend/resume support
this patch implements basic suspend/resume
functionality for the OMAP glue layer.

Tested-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:02 +02:00
Felipe Balbi 1d9a00eeca usb: dwc3: omap: remove unused fields from private structure
we're not using those fields of the structure,
might as well remove them.

Tested-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:02 +02:00
Felipe Balbi 9a4b5dab91 usb: dwc3: omap: introduce enable/disable IRQ methods
they will be re-used on suspend/resume implementation.

Tested-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:17:01 +02:00
Kishon Vijay Abraham I 7eaf8f2a7d usb: dwc3: omap: stop using nop-usb-xceiv
Now that we have drivers for omap-usb2 phy and omap-usb3 phy, stop
using nop-usb-xceiv.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:16:39 +02:00
Kishon Vijay Abraham I 4495afcf71 usb: dwc3: omap: remove platform data associated with dwc3-omap
omap5 is not going to have support for non-dt boot making the platform
data associated with dwc3 useless. Removed it here.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:16:38 +02:00
Kishon Vijay Abraham I e36a0c870f usb: dwc3: omap: minor fixes to get dt working
Includes few minor fixes in dwc3-omap like populating the compatible
string in a correct way, extracting the utmi-mode property properly and
changing the index of get_irq since irq of core is removed from hwmod
entry.

Also updated the documentation with dwc3-omap device tree binding
information.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

[ balbi@ti.com : fix a compile warning introduced by
	this commit ]

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18 11:16:33 +02:00
Felipe Balbi d82f3e3cd8 usb: dwc3: glue layers shouldn't know about the core IP
remove inclusion of "core.h" from all glue
layers as they don't need to know details
about the core IP.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-04 09:33:24 +02:00
Felipe Balbi 2c2dc89cc5 usb: dwc3: omap: fix a typo on of_device_id
s/matach/match

No functional changes

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-04 09:33:23 +02:00