Commit Graph

538 Commits

Author SHA1 Message Date
Greg Kroah-Hartman 7f01131827 USB: phy: remove unneeded MODULE_VERSION() usage
MODULE_VERSION is useless for in-kernel drivers, so remove the
use of it in the marvel phy driver, along with the DRIVER_VERSION
define.

Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-22 15:56:53 +02:00
Baolin Wang d94e64cb24 usb: phy: phy-msm-usb: Remove redundant extcon register/unregister
Since usb phy core has added common code to register or unregister
extcon device, then phy-msm-usb driver does not need its own
code to register/unregister extcon device, then remove them.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-05-17 14:15:38 +03:00
Baolin Wang 78a467d8ff usb: phy: phy-qcom-8x16-usb: Remove redundant extcon register/unregister
Since usb phy core has added common code to register or unregister
extcon device, then phy-qcom-8x16-usb driver does not need its own
code to register/unregister extcon device, then remove them.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-05-17 14:15:34 +03:00
Baolin Wang 7d21114dc6 usb: phy: Introduce one extcon device into usb phy
Usually usb phy need register one extcon device to get the connection
notifications. It will remove some duplicate code if the extcon device
is registered using common code instead of each phy driver having its
own related extcon APIs. So we add one pointer of extcon device into
usb phy structure, and some other helper functions to register extcon.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-05-17 14:15:28 +03:00
Greg Kroah-Hartman ba7756d082 usb: changes for v4.12
With 51 non-merge commits, this is one of the smallest USB Gadget pull
 requests. Apart from your expected set of non-critical fixes, and
 other miscellaneous items, we have most of the changes in dwc3 (52.5%)
 with all other UDCs following with 34.8%.
 
 As for the actual changes, the most important of them are all the
 recent changes to reduce memory footprint of dwc3, bare minimum
 dual-role support on dwc3 and reworked endpoint count and
 initialization routines.
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Merge tag 'usb-for-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: changes for v4.12

With 51 non-merge commits, this is one of the smallest USB Gadget pull
requests. Apart from your expected set of non-critical fixes, and
other miscellaneous items, we have most of the changes in dwc3 (52.5%)
with all other UDCs following with 34.8%.

As for the actual changes, the most important of them are all the
recent changes to reduce memory footprint of dwc3, bare minimum
dual-role support on dwc3 and reworked endpoint count and
initialization routines.
2017-04-11 16:47:26 +02:00
Roger Quadros e92634cd4d usb: otg-fsm: Prevent build warning "VDBG" redefined
If usb/otg-fsm.h and usb/composite.h are included together
then it results in the build warning [1].

Prevent that by defining VDBG locally.

Also get rid of MPC_LOC which doesn't seem to be used
by anyone.

[1] - warning fixed by this patch:

In file included from drivers/usb/dwc3/core.h:33,
   from drivers/usb/dwc3/ep0.c:33:
   include/linux/usb/otg-fsm.h:30:1: warning: "VDBG" redefined
   In file included from drivers/usb/dwc3/ep0.c:31:
   include/linux/usb/composite.h:615:1: warning: this is the location
   of the previous definition

Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Jun Li <jun.li@nxp.com>
Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-04-11 10:58:23 +03:00
Baolin Wang 20839dbb7d usb: phy: Remove unused config
Since the old common Samsung USB PHY code has been removed by commit ea2fdf8423
("usb: phy: samsung: remove old common USB PHY code"), thus remove the unused
config.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-04-11 10:58:22 +03:00
Greg Kroah-Hartman cb2e3d461b Merge 4.11-rc5 into usb-next
We want the usb fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-03 14:16:25 +02:00
Javier Martinez Canillas a7f12a21f6 usb: phy: isp1301: Fix build warning when CONFIG_OF is disabled
Commit fd567653bd ("usb: phy: isp1301: Add OF device ID table")
added an OF device ID table, but used the of_match_ptr() macro
that will lead to a build warning if CONFIG_OF symbol is disabled:

drivers/usb/phy//phy-isp1301.c:36:34: warning: ‘isp1301_of_match’ defined but not used [-Wunused-const-variable=]
 static const struct of_device_id isp1301_of_match[] = {
                                  ^~~~~~~~~~~~~~~~

Fixes: fd567653bd ("usb: phy: isp1301: Add OF device ID table")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-29 12:13:50 +02:00
Baolin Wang 96cfcc9c46 usb: phy: Remove unused config
Since the old common Samsung USB PHY code has been removed by commit ea2fdf8423
("usb: phy: samsung: remove old common USB PHY code"), thus remove the unused
config.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-23 13:48:44 +01:00
Javier Martinez Canillas fd567653bd usb: phy: isp1301: Add OF device ID table
The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-09 10:22:08 +01:00
Arnd Bergmann df2c0cc109 usb: phy: ab8500: remove unused ab8500_eyediagram_workaroud()
The only caller of this function is gone, so now we get a warning:

drivers/usb/phy/phy-ab8500-usb.c:1026:17: error: 'ab8500_eyediagram_workaroud' defined but not used [-Werror=unused-function]

It is possible that we should in fact still call the function from
somewhere else, but I don't see from where.

Fixes: 635f997a499b ("usb: phy: ab8500: Remove the set_power callback")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-26 10:51:27 +02:00
Baolin Wang a98feef743 usb: phy: fsl: Remove the set_power callback
Since the set_power callback did not do anything for power setting,
then remove it.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-24 11:04:23 +02:00
Baolin Wang 7b61980a99 usb: phy: msm: Remove the set_power callback
Since it will not set the PMIC current drawn from USB configuration by
set_power callback, then remove it.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-24 11:04:22 +02:00
Baolin Wang 788c8abbef usb: phy: ab8500: Remove the set_power callback
There are no users will use the vbus_draw variable set by set_power()
callback to set the vbus current. Thus we can remove it.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-24 11:04:22 +02:00
Chanwoo Choi 746c90857b usb: phy: tahvo: Replace the deprecated extcon API
This patch replaces the deprecated extcon API as following:
- extcon_set_cable_state_() -> extcon_set_state_sync()

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-24 11:04:15 +02:00
Chanwoo Choi 874c9cc99e usb: phy: qcom-8x16-usb: Replace the extcon API
This patch uses the resource-managed extcon API for extcon_register_notifier()
and replaces the deprecated extcon API as following:
- extcon_get_cable_state_() -> extcon_get_state()

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-24 11:04:14 +02:00
Chanwoo Choi e61bebde51 usb: phy: msm: Replace the extcon API
This patch uses the resource-managed extcon API for extcon_register_notifier()
and replaces the deprecated extcon API as following:
- extcon_get_cable_state_() -> extcon_get_state()

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-24 11:04:14 +02:00
Chanwoo Choi 7df337891e usb: phy: omap-otg: Replace the extcon API
This patch uses the resource-managed extcon API for extcon_register_notifier()
and replaces the deprecated extcon API as following:
- extcon_get_cable_state_() -> extcon_get_state()

Cc: linux-omap@vger.kernel.org
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-01-24 11:04:13 +02:00
Nicolae Rosia 1ad528db1a usb: twl6030-usb: make driver DT only
All users are DT-only and it makes no sense to keep
unused code

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Nicolae Rosia <Nicolae_Rosia@mentor.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-18 13:54:44 +02:00
Peter Chen a0fe0415e0 usb: phy: phy-generic: add the implementation of .set_suspend
Add clock operation at .set_suspend if the PHY has
suspend requirement, it can be benefit of power saving for
phy and the whole system (parent clock may also be disabled).

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-18 13:54:42 +02:00
Fabian Frederick 6ae660b59c usb: isp1301-omap: don't opencode IS_REACHABLE()
We have a macro which does the same trick. Let's
use it.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-18 13:54:41 +02:00
Johan Hovold 015105b121 USB: phy: am335x-control: fix device and of_node leaks
Make sure to drop the references taken by of_parse_phandle() and
bus_find_device() before returning from am335x_get_phy_control().

Note that there is no guarantee that the devres-managed struct
phy_control will be valid for the lifetime of the sibling phy device
regardless of this change.

Fixes: 3bb869c8b3 ("usb: phy: Add AM335x PHY driver")
Acked-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-18 13:54:09 +02:00
Greg Kroah-Hartman 8152263748 usb: patches for v4.9 merge window
This time around we have 92 non-merge commits. Most
 of the changes are in drivers/usb/gadget (40.3%)
 with drivers/usb/gadget/function being the most
 active directory (27.2%).
 
 As for UDC drivers, only dwc3 (26.5%) and dwc2
 (12.7%) have really been active.
 
 The most important changes for dwc3 are better
 support for scatterlist and, again, throughput
 improvements. While on dwc2 got some minor stability
 fixes related to soft reset and FIFO usage.
 
 Felipe Tonello has done some good work fixing up our
 f_midi gadget and Tal Shorer has implemented a nice
 API change for our ULPI bus.
 
 Apart from these, we have our usual set of
 non-critical fixes, spelling fixes, build warning
 fixes, etc.
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Merge tag 'usb-for-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.9 merge window

This time around we have 92 non-merge commits. Most
of the changes are in drivers/usb/gadget (40.3%)
with drivers/usb/gadget/function being the most
active directory (27.2%).

As for UDC drivers, only dwc3 (26.5%) and dwc2
(12.7%) have really been active.

The most important changes for dwc3 are better
support for scatterlist and, again, throughput
improvements. While on dwc2 got some minor stability
fixes related to soft reset and FIFO usage.

Felipe Tonello has done some good work fixing up our
f_midi gadget and Tal Shorer has implemented a nice
API change for our ULPI bus.

Apart from these, we have our usual set of
non-critical fixes, spelling fixes, build warning
fixes, etc.
2016-09-14 20:37:50 +02:00
Fabio Estevam 7c113f7df7 usb: phy: phy-generic: Check clk_prepare_enable() error
clk_prepare_enable() may fail, so we should better check its return
value and propagate it in the case of failure.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-09-05 13:39:23 +03:00
Colin Ian King 7eee236c38 usb: phy: ab8500-usb: fix spelling mistake "regester" -> "register"
Trivial fix to spelling mistakes in dev_err messages.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-08-29 10:46:05 +03:00
Jaret Cantu da605f5f84 usb: phy: mxs: Add DT bindings to configure TX settings
The TX settings can be calibrated for particular hardware.  The
phy is reset by Linux, so this cannot be handled by the bootloader.

The TRM mentions that the maximum resistance should be used for the
DN/DP calibration in order to pass USB certification.

The values for the TX registers are poorly described in the TRM.
The meanings of the register values were taken from another
NXP-provided document:
https://community.nxp.com/message/566147#comment-566912

Acked-by: Peter Chen <peter.chen@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jaret Cantu <jaret.cantu@timesys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-08-25 12:13:18 +03:00
Robert Jarzmik 77e012ac86 usb: phy: generic: remove the vbus dependency
As the last known user, ie. pxa27x_udc relying on calls to
usb_gadget_xxx() was amended to use the phy notifier, remove a bit the
USB stack adherence.

Actually the driver still uses the gadget API for structures definition,
but the implementation of USB gadget specific function usb_gadget_*() is
not necessary anymore.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-08-25 12:13:07 +03:00
Robert Jarzmik 9835a6ef1a usb: phy: generic: cope with initial state
In the gpio based case, the status of the phy is known at start by
reading the VBus gpio.

Actually, this is a fix, as this initial state, when not set up,
prevents a gadget to answer to the enumeration phase, as there is no
notification in this case (the VBus is already high when kernel boots)
so no interrupt is triggered, and the flow is :
 - gadget initializes
 - gadget gets its phy-generic with a xxx_get_phy_xxx() call type
 - gadget does a "set_peripheral()" call type
   => here if the otg->state is correctly filled, the proper vbus
   handling will be called, and the gadget will be aware it should
   answer enumeration and go forth

Without this fix, the USB cable must be removed and replugged for any
gadget relying on phy-generic and its gpio vbus handling to work.

The problem was seen on a pxa27x architecture based board on a
devicetree build.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-08-25 12:13:07 +03:00
Wei Yongjun ec57fcd042 usb: phy: omap-otg: Fix missing platform_set_drvdata() in omap_otg_probe()
Add missing platform_set_drvdata() in omap_otg_probe(), otherwise
calling platform_get_drvdata() in remove returns NULL.

This is detected by Coccinelle semantic patch.

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-08-11 15:09:45 +03:00
Arnd Bergmann b9b092319b usb: phy: move msm_hsusb.h into driver
As a preparation for another cleanup, this moves the header file
for the phy-msm-usb driver into the driver itself. No other file
includes it any more, and we don't really want it in the global
namespace anyway.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 11:12:10 +03:00
Sandhya Bankar 7c8b9c3184 usb: phy: omap-otg: Space required after that ','.
Space required after that ','.

Reviewed-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 11:10:53 +03:00
Hans de Goede ce15ed4c5d USB: Fix of_usb_get_dr_mode_by_phy with a shared phy block
Some SoCs have a single phy-hw-block with multiple phys, this is
modelled by a single phy dts node, so we end up with multiple
controller nodes with a phys property pointing to the phy-node
of the otg-phy.

Only one of these controllers typically is an otg controller, yet we
were checking the first controller who uses a phy from the block and
then end up looking for a dr_mode property in e.g. the ehci controller.

This commit fixes this by adding an arg0 parameter to
of_usb_get_dr_mode_by_phy and make of_usb_get_dr_mode_by_phy
check that this matches the phandle args[0] value when looking for
the otg controller.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 10:52:39 +03:00
Felipe Balbi 5a8d651a2b usb: gadget: move gadget API functions to udc-core
instead of defining all functions as static inlines,
let's move them to udc-core and export them with
EXPORT_SYMBOL_GPL, that way we can make sure that
only GPL drivers will use them.

As a side effect, it'll be nicer to add tracepoints
to the gadget API.

While at that, also fix Kconfig dependencies to
avoid randconfig build failures.

Acked-By: Sebastian Reichel <sre@kernel.org>
Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 10:38:34 +03:00
Tony Lindgren b6a619a883 usb: phy: Check initial state for twl6030
We need to check the state for the PHY with delayed_work
as otherwise MUSB will get confused and idles immediately.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-01 14:58:59 -07:00
Tony Lindgren 12b7db2bf8 usb: musb: Return error value from musb_mailbox
At least on n900 we have phy-twl4030-usb only generating cable
interrupts, and then have a separate USB PHY.

In order for musb to know the real cable status, we need to
clear any cached state until musb is ready. Otherwise the cable
status interrupts will get just ignored if the status does
not change from the initial state.

To do this, let's add a return value to musb_mailbox(), and
reset cached linkstat to MUSB_UNKNOWN on error. Sorry to cause
a bit of churn here, I should have added that already last time
patching musb_mailbox().

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-01 14:58:59 -07:00
Sandhya Bankar 13069bd94d usb: Remove unnecessary space before operator ','.
Remove unnecessary space before operator ','.

Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-09 13:08:46 +02:00
Felipe Balbi acd877f4ec usb: phy: qcom: use PTR_ERR_OR_ZERO()
coccicheck found this pattern which could be
converted to PTR_ERR_OR_ZERO(). No functional
changes.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-14 09:24:38 +03:00
Arnd Bergmann 7e8ac87a44 usb: phy: qcom-8x16: fix regulator API abuse
gcc warns about the use of regulators in phy_8x16_probe:

    drivers/usb/phy/phy-qcom-8x16-usb.c: In function 'phy_8x16_probe':
    drivers/usb/phy/phy-qcom-8x16-usb.c:284:13: error: 'regs[0].consumer' may be used uninitialized in this function [-Werror=maybe-uninitialized]
    drivers/usb/phy/phy-qcom-8x16-usb.c:285:13: error: 'regs[1].consumer' may be used uninitialized in this function [-Werror=maybe-uninitialized]
    drivers/usb/phy/phy-qcom-8x16-usb.c:286:12: error: 'regs[2].consumer' may be used uninitialized in this function [-Werror=maybe-uninitialized]

According to Mark Brown, this is the result of various abuses
of the PHY interfaces [1], so let's fix the driver instead.

This puts the regulator bulk data into the device structure so it
gets properly initialized and lets us call regulator_bulk_enable()
and regulator_bulk_disable() rather than open-coding them.

Setting the voltages the way the driver does is rather pointless
because for each regulator there is only one valid voltage
range, so that can just get set up in the DT. As there doesn't
seem to be any user of the newly added driver yet, we can simply
make sure the DTs are setting this up right when they get added.

I'm also fixing the handling of regulator_bulk_enable() failure.
Right now, the driver just ignores any failure, which doesn't make
sense, so I'm changing it to loudly complain (in case we actually
had a bug here) and error out.

Doing a fly-by review of the driver, I notice a couple of other
problems that I'm not addressing here:

- It really should not have been written as a USB PHY driver, but
  instead should use the PHY subsystem.

- The DT compatible string does not follow the usual conventions,
  and it should have a proper identifier in it rather than a wildcard.

- The example in the devicetree binding lists a register address
  that is the same as the actual EHCI host controller in the SoC
  as well as the otg-snps and the ci-hdrc device, which indicates
  that these are probably not even distinct devices (or all but
  one of them are wrong), and if more than one of them tries to
  request the resources correctly, they fail.

[1] https://lkml.org/lkml/2016/1/26/267

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-03-30 13:34:04 +03:00
Maarten ter Huurne 2eafe93b92 usb: phy: generic: Handle late registration of gadget
It is possible for the VBUS detect GPIO interrupt to occur before
nop_set_peripheral() is called, in which case otg->gadget is NULL.

Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-03-04 15:14:47 +02:00
Bjorn Helgaas 12496785a4 usb: phy: phy-am335x: remove include of regulator/consumer.h
phy-am335x.c doesn't use any interfaces from linux/regulator/consumer.h, so
stop including it.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-03-04 15:14:31 +02:00
Arnd Bergmann 5b35becce7 usb: isp1301-omap: mark power_up as __maybe_unused
The power_up function is used for otg or udc mode, but nost when
the driver is only configured for host mode:

drivers/usb/phy/phy-isp1301-omap.c:261:13: error: 'power_up' defined but not used [-Werror=unused-function]

This marks the function __maybe_unused to avoid the warning and
silently drop the definition when it is unused.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-03-04 15:14:30 +02:00
Ivan T. Ivanov 8de4b3a3fc usb: phy: msm: Trigger USB state detection work in DRD mode
When working in Dual Role Device mode, USB state machine is not kicked,
when host or gadget drivers are loaded. Fix this be explicitly triggering
state detection on client driver load.

Issue is that if the board is booted without micro usb cable and usb
device attached, kernel fails to populate the usb host and device.
The reason for this is that the state machine worker logic only checks
for USB_DR_MODE_PERIPHERAL and USB_DR_MODE_HOST modes to run worker
thread. However if the phy is configured in OTG mode it would fail
to run the state machine, resulting in failure to detect for very
first time.

This patch fixes the issue by removing the explicit checks.

Issue is noticed on Qualcomm Dragon board DB410C.

[srinivas.kandagatla@linaro.org: Added more details to log]
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-02-23 08:51:38 +02:00
Li Jun 63b121e3a3 usb: phy: mxs: declare variable with initialized value
Initialize vbus_value to be 0 since it's possible not to assign
any value before judgement.

Acked-by: Peter Chen <peter.chen@nxp.com
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-02-03 19:57:41 +02:00
Srinivas Kandagatla a38a08dfaa usb: phy: msm: fix error handling in probe.
This driver registers for extcon events as part of its probe, but
never unregisters them in case of error in the probe path.

There were multiple issues noticed due to this missing error handling.
One of them is random crashes if the regulators are not ready yet by the
time probe is invoked.

Ivan's previous attempt [1] to fix this issue, did not really address
all the failure cases like regualtor/get_irq failures.

[1] https://lkml.org/lkml/2015/9/7/62

Without this patch the kernel would carsh with log:
...
Unable to handle kernel paging request at virtual address 17d78410
pgd = ffffffc001a5c000
[17d78410] *pgd=00000000b6806003, *pud=00000000b6806003, *pmd=0000000000000000
Internal error: Oops: 96000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 6 Comm: kworker/u8:0 Not tainted 4.4.0+ #48
Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT)
Workqueue: deferwq deferred_probe_work_func
task: ffffffc03686e900 ti: ffffffc0368b0000 task.ti: ffffffc0368b0000
PC is at raw_notifier_chain_register+0x1c/0x44
LR is at extcon_register_notifier+0x88/0xc8
pc : [<ffffffc0000da43c>] lr : [<ffffffc000606298>] pstate: 80000085
sp : ffffffc0368b3a70
x29: ffffffc0368b3a70 x28: ffffffc03680c310
x27: ffffffc035518000 x26: ffffffc035518000
x25: ffffffc03bfa20e0 x24: ffffffc035580a18
x23: 0000000000000000 x22: ffffffc035518458
x21: ffffffc0355e9a60 x20: ffffffc035518000
x19: 0000000000000000 x18: 0000000000000028
x17: 0000000000000003 x16: ffffffc0018153c8
x15: 0000000000000001 x14: ffffffc03686f0f8
x13: ffffffc03686f0f8 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000001
x9 : ffffffc03686f0f8 x8 : 0000e3872014c1a1
x7 : 0000000000000028 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000000
x3 : 00000000354fb170 x2 : 0000000017d78400
x1 : ffffffc0355e9a60 x0 : ffffffc0354fb268

Fixes: 	591fc116f3 ("usb: phy: msm: Use extcon framework for VBUS and ID detection")
CC: Stable <stable@vger.kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-02-03 19:52:29 +02:00
Tony Lindgren 8055555fc4 usb: musb: core: Fix handling of the phy notifications
We currently can't unload omap2430 MUSB platform glue driver module and
this cause issues for fixing the MUSB code further. The reason we can't
remove omap2430 is because it uses the PHY functions and also exports the
omap_musb_mailbox function that some PHY drivers are using.

Let's fix the issue by exporting a more generic musb_mailbox function
from the MUSB core and allow platform glue layers to register phy_callback
function as needed.

And now we can now also get rid of the include/linux/musb-omap.h.

Cc: Bin Liu <b-liu@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: NeilBrown <neil@brown.name>
Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16 10:07:28 -06:00
Bin Liu 59f042f644 usb: phy: phy-am335x: bypass first VBUS sensing for host-only mode
To prevent VBUS contention, the am335x MUSB phy senses VBUS first before
transitioning to host mode. However, for host-only mode, VBUS could be
directly tied to 5V power rail which could prevent MUSB transitions to
host mode.

This change receives dr_mode of the controller then bypass the first
VBUS sensing for host-only mode, so that MUSB can work in host mode
event if VBUS is tied to 5V.

Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16 10:07:25 -06:00
Bin Liu 5306661eff usb: phy: correct the am335x phy header filename
The filename of am35x-phy-control.h is confusing. The header is used
by the am335x phy driver, but the filename refers to am35x. Even worse
there is indeed another device called am35x but it does not use this
header at all.

Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16 10:07:25 -06:00
Geert Uytterhoeven 375da6271b usb: phy: Remove unused Renesas R-Car (Gen1) USB PHY driver
As of commit 3d7608e4c1 ("ARM: shmobile: bockw: remove legacy
board file and config"), the Renesas R-Car (Gen1) USB PHY driver is no
longer used.
In theory it could still be used on R-Car Gen1 SoCs, but that would
require adding DT support to the driver. Instead, a new driver using the
generic PHY framework should be written, as was done for R-Car Gen2.

Remove the driver for good.

Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15 09:12:41 -06:00
LABBE Corentin 928c75fbeb usb: phy: msm: fix a possible NULL dereference
of_match_device could return NULL, and so cause a NULL pointer
dereference later.
Even if the probability of this case is very low, fixing it made
static analyzers happy.
Solving this with of_device_get_match_data made also code simplier.

Reported-by: coverity (CID 1324133)
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-08 08:13:28 -06:00
Peter Chen 5c256b6834 usb: phy: mxs: add "fsl,imx6ul-usbphy" compatible string
Add "fsl,imx6ul-usbphy" compatible string for iMX6ul usb phy

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-11-19 14:48:50 -06:00
Peter Chen ac722e302c usb: kconfig: fix warning of select USB_OTG
When choose randconfig for kernel build, it reports below warning:
"warning: (USB_OTG_FSM && FSL_USB2_OTG && USB_MV_OTG) selects USB_OTG
which has unmet direct dependencies (USB_SUPPORT && USB && PM)"

In fact, USB_OTG is visible symbol and depends on PM, so the driver
needs to depend on it to reduce dependency problem.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Cc: Felipe Balbi <balbi@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-11-19 14:48:48 -06:00
LABBE Corentin 89d99aea94 usb: phy: phy-mxs-usb: fix a possible NULL dereference
of_match_device could return NULL, and so cause a NULL pointer
dereference later.

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-11-17 11:35:48 -06:00
Aaro Koskinen 2c2025b41a usb: phy: omap-otg: fix uninitialized pointer
otg_dev->extcon was referenced before otg_dev was initialized. Fix.

Cc: <stable@vger.kernel.org> # v4.3
Fixes: a2fd242324 ("usb: phy: omap-otg: Replace deprecated API of extcon")
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-11-16 10:17:40 -06:00
Heikki Krogerus 06e7114f0d usb: common: of_usb_get_dr_mode to usb_get_dr_mode
By using the unified device property interface, the function
can be made available for all platforms and not just the
ones using DT.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-27 10:54:31 -05:00
Ivan T. Ivanov 7ed855e65b usb: phy: qcom: Switch to new extcon framework API
[un]register_interest and reading cable state by
name have been deprecated. Switch to new API.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-27 10:54:31 -05:00
Javier Martinez Canillas 8fb7ab5043 usb: phy: isp1301: Export I2C module alias information
The I2C core always reports the MODALIAS uevent as "i2c:<client name"
regardless if the device was registered using OF or platform code so
So the driver needs to export the I2C table and this be built into
the module or udev won't have the necessary information to auto load
the module when the device is added.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-21 14:42:36 -05:00
Roger Quadros 762982db33 usb: phy: phy-generic: Fix reset behaviour on legacy boot
The gpio-desc migration done in v4.0 caused a regression
with legacy boots due to reversed reset logic.
e.g. omap3-beagle USB host breaks on legacy boot.

Request the reset GPIO with GPIOF_ACTIVE_LOW flag so that
it matches the driver logic and pin behaviour.

Fixes: e9f2cefb0c ("usb: phy: generic: migrate to gpio_desc")
Cc: <stable@vger.kernel.org> # 4.0+
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-14 10:15:08 -05:00
Randy Dunlap 88ccdbd5fc usb: phy: fix phy-qcom-8x16-usb build
Fix build errors that happen when USB_QCOM_8X16_PHY=y and EXTCON=m:

drivers/built-in.o: In function `phy_8x16_init':
phy-qcom-8x16-usb.c:(.text+0x86ef4): undefined reference to `extcon_get_cable_state'
drivers/built-in.o: In function `phy_8x16_probe':
phy-qcom-8x16-usb.c:(.text+0x870bf): undefined reference to `extcon_get_edev_by_phandle'
phy-qcom-8x16-usb.c:(.text+0x87133): undefined reference to `extcon_register_interest'
phy-qcom-8x16-usb.c:(.text+0x87151): undefined reference to `extcon_unregister_interest'
drivers/built-in.o: In function `phy_8x16_remove':
phy-qcom-8x16-usb.c:(.text+0x872ec): undefined reference to `extcon_unregister_interest'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-14 10:14:49 -05:00
Saurabh Karajgaonkar c5673f5ce4 usb: phy: phy-keystone: Simplify return statement
Replace redundant variable use in return statement.

Signed-off-by: Saurabh Karajgaonkar <skarajga@visteon.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-08-04 11:02:05 -05:00
Saurabh Karajgaonkar 4b68b50fd4 usb: phy: phy-mxs-usb: Simplify return statement
Replace redundant variable use in return statement.

Signed-off-by: Saurabh Karajgaonkar <skarajga@visteon.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-08-04 11:01:50 -05:00
Ivan T. Ivanov 6f98f545b0 usb: phy: msm: Add D+/D- lines route control
apq8016-sbc board is using Dual SPDT USB Switch (TC7USB40MU),
witch is controlled by GPIO to de/multiplex D+/D- USB lines to
USB2513B Hub and uB connector. Add support for this.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-30 11:43:36 -05:00
Ivan T. Ivanov 351169933e usb: phy: qcom: New APQ8016/MSM8916 USB transceiver driver
Driver handles PHY initialization, clock management, power
management and workarounds required after resetting the hardware.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:19 -05:00
Uwe Kleine-König 88167fc0b2 usb: pass flags parameter to gpiod_get functions
Since 39b2bbe3d7 (gpio: add flags argument to gpiod_get*() functions)
which appeared in v3.17-rc1, the gpiod_get* functions take an additional
parameter that allows to specify direction and initial value for output.

Currently this parameter is made optional with the help of a cpp trick.
To allow dropping this hack convert callers to explictly pass a value
for flags.

Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:19 -05:00
Chanwoo Choi 83b7b67c78 usb: phy: msm-usb: 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
Chanwoo Choi 860d2686fd usb: phy: tahvo: Use devm_extcon_dev_[allocate|register]() and replace deprecated API
This patch uses the devm_extcon_dev_[allocate|register]() to manage the
resource automatically and replace deprecated API as following:
- extcon_[set|get]_cable_state(*edev, char *) -> extcon_[set|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
Chanwoo Choi a2fd242324 usb: phy: omap-otg: 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)

[ balbi@ti.com : fix build break ]

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
Stefan Wahren 543aa4867d usb: phy: mxs: suspend to RAM causes NULL pointer dereference
Triggering suspend to RAM via sysfs on a i.MX28 causes a NULL pointer
dereference. This patch avoids the oops in mxs_phy_get_vbus_status()
by aborting since there is no syscon available.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Fixes: efdbd3a5d6 ("usb: phy: mxs: do not set PWD.RXPWD1PT1 for low speed connection")
CC: <stable@vger.kernel.org> # 4.0
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-06 12:34:08 -05:00
Linus Torvalds 2a298679b4 USB patches for 4.2-rc1
Here's the big USB patchset for 4.2-rc1.  As is normal these days, the
 majority of changes are in the gadget drivers, with a bunch of other
 small driver changes.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here's the big USB patchset for 4.2-rc1.  As is normal these days, the
  majority of changes are in the gadget drivers, with a bunch of other
  small driver changes.

  All of these have been in linux-next with no reported issues"

* tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (175 commits)
  usb: dwc3: Use ASCII space in Kconfig
  usb: chipidea: add work-around for Marvell HSIC PHY startup
  usb: chipidea: allow multiple instances to use default ci_default_pdata
  dt-bindings: Consolidate ChipIdea USB ci13xxx bindings
  phy: add Marvell HSIC 28nm PHY
  phy: Add Marvell USB 2.0 OTG 28nm PHY
  dt-bindings: Add Marvell PXA1928 USB and HSIC PHY bindings
  USB: ssb: use devm_kzalloc
  USB: ssb: fix error handling in ssb_hcd_create_pdev()
  usb: isp1760: check for null return from kzalloc
  cdc-acm: Add support of ATOL FPrint fiscal printers
  usb: chipidea: usbmisc_imx: Remove unneeded semicolon
  USB: usbtmc: add device quirk for Rigol DS6104
  USB: serial: mos7840: Use setup_timer
  phy: twl4030-usb: add ABI documentation
  phy: twl4030-usb: remove incorrect pm_runtime_get_sync() in probe function.
  phy: twl4030-usb: remove pointless 'suspended' test in 'suspend' callback.
  phy: twl4030-usb: make runtime pm more reliable.
  drivers:usb:fsl: Fix compilation error for fsl ehci drv
  usb: renesas_usbhs: Don't disable the pipe if Control write status stage
  ...
2015-06-26 15:59:26 -07:00
Linus Torvalds d87823813f Char/Misc driver patches for 4.2-rc1
Here's the big char/misc driver pull request for 4.2-rc1.
 
 Lots of mei, extcon, coresight, uio, mic, and other driver updates in
 here.  Full details in the shortlog.  All of these have been in
 linux-next for some time with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here's the big char/misc driver pull request for 4.2-rc1.

  Lots of mei, extcon, coresight, uio, mic, and other driver updates in
  here.  Full details in the shortlog.  All of these have been in
  linux-next for some time with no reported problems"

* tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (176 commits)
  mei: me: wait for power gating exit confirmation
  mei: reset flow control on the last client disconnection
  MAINTAINERS: mei: add mei_cl_bus.h to maintained file list
  misc: sram: sort and clean up included headers
  misc: sram: move reserved block logic out of probe function
  misc: sram: add private struct device and virt_base members
  misc: sram: report correct SRAM pool size
  misc: sram: bump error message level on unclean driver unbinding
  misc: sram: fix device node reference leak on error
  misc: sram: fix enabled clock leak on error path
  misc: mic: Fix reported static checker warning
  misc: mic: Fix randconfig build error by including errno.h
  uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config
  uio: pruss: Add CONFIG_HAS_IOMEM dependence
  uio: pruss: Include <linux/sizes.h>
  extcon: Redefine the unique id of supported external connectors without 'enum extcon' type
  char:xilinx_hwicap:buffer_icap - change 1/0 to true/false for bool type variable in function buffer_icap_set_configuration().
  Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion
  parport: check exclusive access before register
  w1: use correct lock on error in w1_seq_show()
  ...
2015-06-26 14:51:15 -07:00
Chanwoo Choi 73b6ecdb93 extcon: Redefine the unique id of supported external connectors without 'enum extcon' type
This patch just redefine the unique id of supported external connectors without
'enum extcon' type. Because unique id would be used on devictree file(*.dts) to
indicate the specific external connectors like key number of input framework.
So, I have the plan to move this definitions to following header file which
includes the unique id of supported external connectors.
- include/dt-bindings/extcon/extcon.h

Fixes: 2a9de9c0f0 ("extcon: Use the unique id for external connector instead of string")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:42 -07:00
Greg Kroah-Hartman 19915e6234 Merge 4.1-rc7 into usb-next
This resolves a merge issue in musb_core.c and we want the fixes that
were in Linus's tree in this branch as well for testing.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-08 10:57:51 -07:00
Greg Kroah-Hartman e152813ff5 usb: patches for v4.2 merge window
- dwc2 adds hibernation support
 - preparation for sunxi glue to musb driver
 - new ULPI bus
 - new ULPI PHY driver for TUSB1210
 - musb patches to support multiple DMA engines on same binary
 - support for R-Car E2 on renesas_usbhs
 
 Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.2 merge window

- dwc2 adds hibernation support
- preparation for sunxi glue to musb driver
- new ULPI bus
- new ULPI PHY driver for TUSB1210
- musb patches to support multiple DMA engines on same binary
- support for R-Car E2 on renesas_usbhs

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-06-02 10:47:03 +09:00
NeilBrown e842b84c8e usb: phy: Add interface to get phy give of device_node.
Split the "get phy from device_node" functionality out of
"get phy by phandle" so it can be used directly.

This is useful when a battery-charger is intimately associated with a
particular phy but handled by a separate driver.  The charger
can find the device_node based on sibling relationships
without the need for a redundant declaration in the devicetree
description.

As a peripheral that gets a phy will often want to register a
notifier block, and de-register it later, that functionality
is included so the de-registration is automatic.

Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-26 10:42:28 -05:00
Fabio Estevam a81df9eedf usb: phy: tahvo: Pass the IRQF_ONESHOT flag
Since commit 1c6c69525b ("genirq: Reject bogus threaded irq requests")
threaded IRQs without a primary handler need to be requested with
IRQF_ONESHOT, otherwise the request will fail.

So pass the IRQF_ONESHOT flag in this case.

The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-26 09:44:51 -05:00
Fabio Estevam 2b12978928 usb: phy: ab8500-usb: Pass the IRQF_ONESHOT flag
Since commit 1c6c69525b ("genirq: Reject bogus threaded irq requests")
threaded IRQs without a primary handler need to be requested with
IRQF_ONESHOT, otherwise the request will fail.

So pass the IRQF_ONESHOT flag in this case.

The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-26 09:44:46 -05:00
Chanwoo Choi 2a9de9c0f0 extcon: Use the unique id for external connector instead of string
This patch uses the unique id to identify the type of external connector instead
of string name. The string name have the many potential issues. So, this patch
defines the 'extcon' enumeration which includes all supported external connector
on EXTCON subsystem. If new external connector is necessary, the unique id of
new connector have to be added in 'extcon' enumeration. There are current
supported external connector in 'enum extcon' as following:

enum extcon {
	EXTCON_NONE		= 0x0,

	/* USB external connector */
	EXTCON_USB		= 0x1,
	EXTCON_USB_HOST		= 0x2,

	/* Charger external connector */
	EXTCON_TA		= 0x10,
	EXTCON_FAST_CHARGER	= 0x11,
	EXTCON_SLOW_CHARGER	= 0x12,
	EXTCON_CHARGE_DOWNSTREAM = 0x13,

	/* Audio and video external connector */
	EXTCON_LINE_IN		= 0x20,
	EXTCON_LINE_OUT		= 0x21,
	EXTCON_MICROPHONE	= 0x22,
	EXTCON_HEADPHONE	= 0x23,

	EXTCON_HDMI		= 0x30,
	EXTCON_MHL		= 0x31,
	EXTCON_DVI		= 0x32,
	EXTCON_VGA		= 0x33,
	EXTCON_SPDIF_IN		= 0x34,
	EXTCON_SPDIF_OUT	= 0x35,
	EXTCON_VIDEO_IN		= 0x36,
	EXTCON_VIDEO_OUT	= 0x37,

	/* Miscellaneous external connector */
	EXTCON_DOCK		= 0x50,
	EXTCON_JIG		= 0x51,
	EXTCON_MECHANICAL	= 0x52,

	EXTCON_END,
};

For example in extcon-arizona.c:
To use unique id removes the potential issue about handling
the inconsistent name of external connector with string.
- Previously, use the string to register the type of arizona jack connector
static const char *arizona_cable[] = {
	"Mechanical",
	"Microphone",
	"Headphone",
	"Line-out",
};
- Newly, use the unique id to register the type of arizona jack connector
static const enum extcon arizona_cable[] = {
	EXTCON_MECHANICAL,
	EXTCON_MICROPHONE,
	EXTCON_HEADPHONE,
	EXTCON_LINE_OUT,

	EXTCON_NONE,
};

And this patch modify the prototype of extcon_{get|set}_cable_state_() which
uses the 'enum extcon id' instead of 'cable_index'. Because although one more
extcon drivers support USB cable, each extcon driver might has the differnt
'cable_index' for USB cable. All extcon drivers can use the unique id number
for same external connector with modified extcon_{get|set}_cable_state_().

- Previously, use 'cable_index' on these functions:
extcon_get_cable_state_(struct extcon_dev*, int cable_index)
extcon_set_cable_state_(struct extcon_dev*, int cable_index, bool state)

-Newly, use 'enum extcon id' on these functions:
extcon_get_cable_state_(struct extcon_dev*, enum extcon id)
extcon_set_cable_state_(struct extcon_dev*, enum extcon id, bool state)

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[arnd: Report the build break about drivers/usb/phy/phy-tahvo.c after using the
unique id for external connector insteadf of string]
Reported-by: Arnd Bergmann <arnd@arndb.de>
[dan.carpenter: Report the build warning of extcon_{set|get}_cable_state_()]
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
2015-05-22 18:58:44 +09:00
Greg Kroah-Hartman 909eacd748 Merge 4.1-rc4 into usb-next
We want the fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-18 15:33:09 -07:00
Krzysztof Kozlowski 1cb39e2564 usb: phy-ab8500-usb: Constify platform_device_id
The platform_device_id is not modified by the driver and core uses it as
const.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-10 16:03:49 +02:00
Geert Uytterhoeven 34ef33f7da usb: phy: Remove the phy-rcar-gen2-usb driver
The phy-rcar-gen2-usb driver, which supports legacy platform data only,
is no longer used since commit a483dcbfa2 ("ARM: shmobile: lager:
Remove legacy board support").

This driver was superseded by the DT-only phy-rcar-gen2 driver, which
was introduced in commit 1233f59f74 ("phy: Renesas R-Car Gen2 PHY
driver").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-10 15:44:10 +02:00
Geert Uytterhoeven db978e2847 usb: phy: Allow compile test of GPIO consumers if !GPIOLIB
The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is
not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer
functionality only, can still be compiled if GPIOLIB is not enabled.

Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where
appropriate.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: <linux-usb@vger.kernel.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-07 13:37:36 -05:00
Krzysztof Kozlowski 25e97ab598 usb: phy-ab8500-usb: Constify platform_device_id
The platform_device_id is not modified by the driver and core uses it as
const.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-07 13:37:13 -05:00
Geert Uytterhoeven b189a21172 usb: phy: Remove the phy-rcar-gen2-usb driver
The phy-rcar-gen2-usb driver, which supports legacy platform data only,
is no longer used since commit a483dcbfa2 ("ARM: shmobile: lager:
Remove legacy board support").

This driver was superseded by the DT-only phy-rcar-gen2 driver, which
was introduced in commit 1233f59f74 ("phy: Renesas R-Car Gen2 PHY
driver").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-04-28 11:49:19 -05:00
Ivan T. Ivanov 44e42ae3a3 usb: phy: msm: Manual PHY and LINK controller VBUS change notification
VBUS is not routed to USB PHY on recent Qualcomm platforms. USB controller
must see VBUS in order to pull-up DP when setting RS bit. Henc configure
USB PHY and LINK registers sense VBUS and enable manual pullup on D+ line.

Cc: Vamsi Krishna <vskrishn@codeaurora.org>
Cc: Mayank Rana <mrana@codeaurora.org>
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-04-28 11:49:15 -05:00
Ivan T. Ivanov 591fc116f3 usb: phy: msm: Use extcon framework for VBUS and ID detection
On recent Qualcomm platforms VBUS and ID lines are not routed to
USB PHY LINK controller. Use extcon framework to receive connect
and disconnect ID and VBUS notification.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-04-28 11:46:50 -05:00
Arnd Bergmann 197d0bdf8b usb: phy: isp1301: work around tps65010 dependency
The isp1301-omap driver contains special hooks for the TPS65010
power management controller. It provides its own 'tps65010_set_vbus_draw'
wrapper in case that driver is not enabled through Kconfig, but
fails to handle the case where isp1301-omap is built-in but TPS65010
is a loadable module, which currently results in a link error:

drivers/built-in.o: In function `isp1301_set_power':
:(.text+0x14e188): undefined reference to `tps65010_set_vbus_draw'

This is a workaround to use the same trick as before also when
tps65010 is a module. Doing a proper fix would require much larger
changes to the driver that is not really worth it when the usb-phy
drivers are going to eventually get replaced with generic-phy
drivers.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-04-27 14:45:14 -05:00
Linus Torvalds 42e3a58b02 USB patches for 4.1-rc1
Here's the big USB (and PHY) driver patchset for 4.1-rc1.
 
 Everything here has been in linux-next, and the full details are below
 in the shortlog.  Nothing major, just the normal round of new
 drivers,api updates, and other changes, mostly in the USB gadget area,
 as usual.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB driver updates from Greg KH:
 "Here's the big USB (and PHY) driver patchset for 4.1-rc1.

  Everything here has been in linux-next, and the full details are below
  in the shortlog.  Nothing major, just the normal round of new
  drivers,api updates, and other changes, mostly in the USB gadget area,
  as usual"

* tag 'usb-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (252 commits)
  drivers/usb/core: devio.c: Removed an uneeded space before tab
  usb: dwc2: host: sleep USB_RESUME_TIMEOUT during resume
  usb: chipidea: debug: add low power mode check before print registers
  usb: chipidea: udc: bypass pullup DP when gadget connect in OTG fsm mode
  usb: core: hub: use new USB_RESUME_TIMEOUT
  usb: isp1760: hcd: use new USB_RESUME_TIMEOUT
  usb: dwc2: hcd: use new USB_RESUME_TIMEOUT
  usb: host: sl811: use new USB_RESUME_TIMEOUT
  usb: host: r8a66597: use new USB_RESUME_TIMEOUT
  usb: host: oxu210hp: use new USB_RESUME_TIMEOUT
  usb: host: fusbh200: use new USB_RESUME_TIMEOUT
  usb: host: fotg210: use new USB_RESUME_TIMEOUT
  usb: host: isp116x: use new USB_RESUME_TIMEOUT
  usb: musb: use new USB_RESUME_TIMEOUT
  usb: host: uhci: use new USB_RESUME_TIMEOUT
  usb: host: ehci: use new USB_RESUME_TIMEOUT
  usb: host: xhci: use new USB_RESUME_TIMEOUT
  usb: define a generic USB_RESUME_TIMEOUT macro
  usb: musb: dsps: fix build on i386 when COMPILE_TEST is set
  ehci-hub: use USB_DT_HUB
  ...
2015-04-13 17:07:21 -07:00
Mark Brown bea3672833 Merge remote-tracking branches 'regulator/topic/mode', 'regulator/topic/notifier', 'regulator/topic/palmas', 'regulator/topic/qcom' and 'regulator/topic/stw481x' into regulator-next 2015-04-10 19:16:03 +01:00
Yoshihiro Shimoda c6ab3aec4b usb: phy: rcar-gen2-usb: Fix USBHS_UGSTS_LOCK value
According to the technical update (No. TN-RCS-B011A/E), the UGSTS LOCK
bit location is bit 8, not bits 9 and 8. So, this patch fixes the
USBHS_UGSTS_LOCK value.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-03 19:03:15 +02:00
Greg Kroah-Hartman 1c41a9570a usb: patches for v4.1 merge window
As usual, a big pile of commits. This time a total
 of 111 non-merge commits.
 
 Other than the usual set of cleanups and non-critical
 fixes, we have some interesting work for AM335x's MUSB
 babble recovery. Now that takes a lot less time and we
 don't have to Reset MUSB all the time.
 
 The printer gadget has been converted to configfs interface
 and the atmel udc has learned suspend/resume with wakeup.
 
 Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.1 merge window

As usual, a big pile of commits. This time a total
of 111 non-merge commits.

Other than the usual set of cleanups and non-critical
fixes, we have some interesting work for AM335x's MUSB
babble recovery. Now that takes a lot less time and we
don't have to Reset MUSB all the time.

The printer gadget has been converted to configfs interface
and the atmel udc has learned suspend/resume with wakeup.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-24 22:57:49 +01:00
Ivan T. Ivanov 1ea276cbfc usb: phy: Fix USB_ULPI_VIEWPORT Kconfig dependency
USB_ULPI_VIEWPORT didn't depend on USB_ULPI, while USB_ULPI
is using non user selectable USB_ULPI_VIEWPORT. Fix this.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-24 11:35:30 -05:00
Greg Kroah-Hartman cd0e075784 Merge 4.0-rc5 into usb-next
We want the USB fixes in here as well to resolve merge conflicts.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-23 21:49:37 +01:00
Axel Lin 869aee0f31 usb: phy: Find the right match in devm_usb_phy_match
The res parameter passed to devm_usb_phy_match() is the location where the
pointer to the usb_phy is stored, hence it needs to be dereferenced before
comparing to the match data in order to find the correct match.

Fixes: 410219dcd2 ("usb: otg: utils: devres: Add API's to associate a device with the phy")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Cc: <stable@vger.kernel.org> # v3.6+
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-19 11:28:14 -05:00
Stephen Boyd 32fc9eb5b2 usb: phy: msm: Remove dead code
This code is no longer used now that mach-msm has been removed.
Delete it.

Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Cc: David Brown <davidb@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-18 17:27:03 +01:00
Stephen Boyd 46f5cace1c usb: phy: msm: Remove dead code
This code is no longer used now that mach-msm has been removed.
Delete it.

Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Cc: David Brown <davidb@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-13 13:56:48 -05:00
Fabio Estevam 168bdb88c3 usb: phy: phy-generic: No need to call gpiod_direction_output() twice
Commit 9eb0797722 ("usb: phy: generic: fix the gpios to be optional")
calls gpiod_direction_output() in the probe function, so there is no need to
call it again, as we can simply call gpiod_set_value() directly.

Also, in usb_gen_phy_shutdown() we can simply put the GPIO directly in its
active level state and this allows us to simplify the nop_reset function to
treat only the reset case.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-11 10:19:38 -05:00
Mickael Maison 656e7c36bd usb: phy: fixed comment typo
Fixed a comment typo in drivers/usb/phy/of.c

Signed-off-by: Mickael Maison <mickael.maison@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-11 10:19:36 -05:00
Mickael Maison 2b08977b8d usb: phy: ab8500: fixed comment typo
Fixed a comment typo in drivers/usb/phy/phy-ab8500-usb.c

Signed-off-by: Mickael Maison <mickael.maison@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-11 10:19:36 -05:00
David Dueck d0f347d628 usb: phy: am335x-control: check return value of bus_find_device
This fixes a potential null pointer dereference.

Cc: <stable@vger.kernel.org> # v3.16+
Fixes: d433201391 ("driver core: dev_get_drvdata: Don't check for NULL dev")
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David Dueck <davidcdueck@googlemail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 16:28:44 -05:00
Bjorn Andersson fa53e351e8 usb: phy: phy-msm-usb: Rename regulator_set_optimum_mode
The function regulator_set_optimum_mode() is changing name to
regulator_set_load(), so update the code accordingly.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-09 18:33:01 +00:00