Commit Graph

452 Commits

Author SHA1 Message Date
Arnd Bergmann
c5ab571f81 usb: phy: msm: reset controller is mandatory now
Commit a273454341 "usb: phy: msm: Use reset framework for LINK
and PHY resets" introduced a mandatory call to reset_control_get
into the msm usb phy driver, which means we have to add a Kconfig
dependency on the API to avoid this build error:

phy/phy-msm-usb.c: In function 'msm_otg_read_dt':
phy/phy-msm-usb.c:1461:2: error: implicit declaration of function 'devm_reset_control_get' [-Werror=implicit-function-declaration]
  motg->link_rst = devm_reset_control_get(&pdev->dev, "link");
  ^

Since the usb-ehci-msm driver currently selects the OTG driver,
we could still get a broken dependency here. To solve that,
this patch also removes the 'select', which turns out to be
unnecessary.

Reviewed-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:25:47 -05:00
Felipe Balbi
1f7fc40876 usb: phy: msm: enable build on other architectures
By adding COMPILE_TEST to the list of dependencies
we can build test this driver on all other architectures
which is very valuable for maintainers applying patches
and to find silly mistakes during development.

Reviewed-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-12 12:34:46 -05:00
Felipe Balbi
245974908c usb: phy: msm: switch over to writel()
Remove that single instance of writel_relaxed()
call which is only available on ARM architecture.

This will let us build test this driver on all
different architectures.

Reviewed-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-12 12:34:45 -05:00
Felipe Balbi
b3025e6ada usb: phy: msm: cast to enum msm_usb_phy_type
this solves the following build warning found when
running compile tests.

drivers/usb/phy/phy-msm-usb.c: In function ‘msm_otg_read_dt’:
drivers/usb/phy/phy-msm-usb.c:1459:20: warning: cast from pointer \
	to integer of different size [-Wpointer-to-int-cast]
  pdata->phy_type = (int) id->data;
                    ^
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-12 12:34:23 -05:00
Ivan T. Ivanov
e695abb3c8 usb: phy: msm: Use usb_add_phy_dev() to register device
There could be more than one USB2.0 PHY's on the platform.
This will allow all of them to be registered successfully.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:29:58 -05:00
Ivan T. Ivanov
01799b6222 usb: phy: msm: Vote for corner of VDD CX instead of voltage of VDD CX
New platform uses RBCPR hardware feature, with that voting for
absolute voltage of VDD CX is not required. Hence vote for corner of
VDD CX which uses nominal corner voltage on VDD CX.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Cc: Mayank Rana <mrana@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:29:58 -05:00
Ivan T. Ivanov
349907c262 usb: phy: msm: Handle disconnect events
Put the transceiver in non-driving mode. Otherwise host
may not detect soft-disconnection.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Cc: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:29:58 -05:00
Tim Bird
30bf8667ce usb: phy: msm: Select secondary PHY via TCSR
Select the secondary PHY using the TCSR register, if phy-num=1
in the DTS (or phy_number is set in the platform data).  The
SOC has 2 PHYs which can be used with the OTG port, and this
code allows configuring the correct one.

Note: This resolves the problem I was seeing where I couldn't
get the USB driver working at all on a dragonboard, from cold
boot.  This patch depends on patch 5/14 from Ivan's msm USB
patch set.  It does not use DT for the register address, as
there's no evidence that this address changes between SoC
versions.

Signed-off-by: Tim Bird <tim.bird@sonymobile.com>
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:29:51 -05:00
Tim Bird
9f27984b9e usb: phy: msm: Fix PTS definitions for MSM USB controller
Fix the value used for Parallel Transceiver Select (PTS) for the MSM USB
controller.  This is a standard chipidea PORTSC definition, where
a PHY_TYPE of 10b (<<30) is ULPI and 11b (<<30) is SERIAL.
Fix the definitions and use them correctly in the driver code.

Signed-off-by: Tim Bird <tim.bird@sonymobile.com>
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:29:40 -05:00
Ivan T. Ivanov
d69c6f5df3 usb: phy: msm: Correct USB PHY Reset sequence for newer platform
On few legacy platforms, USB PHY is having dedicated reset clk.
It is used to reset USB PHY after putting USB PHY into low power
mode and for calibration of USB PHY. Putting USB PHY into low
power mode is causing ulpi read/write timeout as expected. USB PHY
reset clk is not available on newer platform.

For 28nm PHY, reset USB PHY after resetting USB LINK.
Also reset USB PHY using USB_PHY_PON bit with USB_OTG_HS_PHY_CTRL
register after programming USB PHY Override registers as suggested
with hardware programming guidelines.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Tim Bird <tim.bird@sonymobile.com>
Cc: Mayank Rana <mrana@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:45 -05:00
Ivan T. Ivanov
cfa3ff5dfe usb: phy: msm: Add support for secondary PHY control
Allow support to use 2nd HSPHY with USB2 Core.
Some platforms may have configuration to allow USB controller
work with any of the two HSPHYs present. By default driver
configures USB core to use primary HSPHY. Add support to allow
user select 2nd HSPHY using DT parameter.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Cc: Manu Gautam <mgautam@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:45 -05:00
Ivan T. Ivanov
a273454341 usb: phy: msm: Use reset framework for LINK and PHY resets
Using reset framework eliminate need of platform specific
callbacks and enable reset lines to be specified in DT files.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:45 -05:00
Ivan T. Ivanov
8364f9af23 usb: phy: msm: Add device tree support and binding information
Allows controller to be specified via device tree.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:44 -05:00
Ivan T. Ivanov
f60c114a3a usb: phy: msm: Properly check result from platform_get_irq()
Function return negative code on error.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:44 -05:00
Ivan T. Ivanov
f5ef2372f6 usb: phy: msm: Remove HSUSB prefix from regulator names
Prefix did not bring any useful information. Currently none
of the MSM platforms define these regulators, so it is safe
to rename them.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:44 -05:00
Ivan T. Ivanov
ff0e4a68c9 usb: phy: msm: Remove unused pclk_src_name
There are no references to 'pclk_src_name' in plaform code,
so it is unused.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:43 -05:00
Ivan T. Ivanov
971232cf7c usb: phy: msm: Replace custom enum usb_mode_type with enum usb_dr_mode
Use enum usb_dr_mode and drop default usb_dr_mode from platform data.

USB DT bindings states: dr_mode: "...In case this attribute isn't
passed via DT, USB DRD controllers should default to OTG...",
so remove redundand field.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:43 -05:00
Ivan T. Ivanov
3aca0fa95f usb: phy: msm: Fix checkpatch.pl warnings
This fixes following:

WARNING: quoted string split across lines
WARNING: Prefer seq_puts to seq_printf

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:43 -05:00
Ivan T. Ivanov
f7ddad4742 usb: phy: msm: Remove unnecessarily check for valid regulators.
Whether regulators are available or not is checked at driver
probe. If they are not available driver will refuse to load,
so no need to check them again.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:42 -05:00
Ivan T. Ivanov
6b99c68ec1 usb: phy: msm: Migrate to Managed Device Resource allocation
Move memory, regulators, clocks and irq allocation to
devm_* variants. Properly check for valid clk handles.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:42 -05:00
Ivan T. Ivanov
06a6ec445b usb: phy: msm: Enable deferred driver probing
Using platform_driver_probe() prevent driver from requesting
probe deferral. Fix this.

While at that, also switch to module_platform_driver() and
remove __init annotation from probe().

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:05 -05:00
Ivan T. Ivanov
37cfdaf782 usb: phy: msm: Move global regulators variables to driver state
Eliminating global variables allows driver to handle multiple
device instances.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:04 -05:00
Ivan T. Ivanov
0d092fdb8c usb: phy: msm: Make driver selectable on ARCH_QCOM
Controller could be found on APQ and MSM platforms,
make configuration description more generic.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:11:30 -05:00
Greg Kroah-Hartman
53971a86d2 Merge 3.15-rc3 into usb-next 2014-04-27 21:42:20 -07:00
Paul Bolle
543cab6402 usb: phy: mv_u3d: Remove usb phy driver for mv_u3d
The usb phy driver for mv_u3d got added in v3.7 through commit
a67e76ac90 ("usb: phy: mv_u3d: Add usb phy driver for mv_u3d"). It
then depended on USB_MV_U3D. And that symbol depended
on CPU_MMP3 at that time. But CPU_MMP3 has never been part of the tree.
This means that this drive was unbuildable when it was added.

In commit 60630c2eab ("usb: gadget: mv_u3d: drop ARCH dependency")
MV_U3D_PHY was made depended directly on CPU_MMP3. That kept it
unbuildable, of course.

Remove this driver. It can be re-added once its dependencies are part of
the tree.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 13:05:32 -07:00
Li Jun
be696aac38 usb: phy: otg-fsm: export symbol of otg_statemachine
This patch exports symbol of otg_statemachine for kernel module
can use it.

Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <b47624@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 12:56:34 -07:00
Peter Chen
66668991c3 usb: phy: fsm: change "|" to "||" for condition OTG_STATE_A_WAIT_BCON at statemachine
We should be using logical "or" not bitwise "or".

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-24 09:54:32 -05:00
Li Jun
2284bb3550 usb: phy: fsm: update OTG HNP state transition
According to:"On-The-Go and Embedded Host Supplement to the USB Revision 2.0
Specification July 27, 2012 Revision 2.0 version 1.1a"

- add a_wait_vrise to a_wait_vfall
- update condition from a_wait_vrise to a_wait_bcon

Signed-off-by: Li Jun <b47624@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-24 09:53:57 -05:00
Felipe Balbi
2f36ff6915 usb: phy: generic: allow multiples calls to usb_phy_generic_register()
it's now very easy to return a platform_device pointer
and have the caller pass it as argument when calling
usb_phy_generic_unregister().

Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21 14:07:25 -05:00
Felipe Balbi
d7078df6be usb: phy: rename <linux/usb/usb_phy_gen_xceiv.h> to <linux/usb/usb_phy_generic.h>
now that all functions match the driver name,
the only missing piece is to rename the header
file itself.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21 14:07:24 -05:00
Felipe Balbi
4525beeb9a usb: phy: rename usb_nop_xceiv to usb_phy_generic
no functional changes, just renaming the function
in order to make it slightly clearer what it should
be used for, also matching the driver name.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21 14:07:24 -05:00
Felipe Balbi
0700faaf73 usb: gadget: only GPL drivers in the gadget and phy framework
We only support GPL drivers in the USB Gadget Framework,
it sounds correct to make all exported symbols GPL too.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21 14:07:12 -05:00
Felipe Balbi
041832565e usb: phy: mv-u3d: switch over to writel/readl
by removing the _relaxed suffix, we can build
this driver in other architectures.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21 10:52:52 -05:00
Daniel Mack
a31a942a14 usb: phy: am335x-control: wait 1ms after power-up transitions
Tests have shown that when a power-up transition is followed by other
PHY operations too quickly, the USB port appears dead. Waiting 1ms fixes
this problem.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: stable@vger.kernel.org [3.14]
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21 10:21:24 -05:00
Mathias Krause
9dc9cb0c9a usb: phy: return an error in usb_get_phy() if try_module_get() fails
In case we found a matching USB PHY in usb_get_phy() but the call to
try_module_get() fails, we shouldn't return a (probably soon dangling)
pointer but an ERR_PTR instead.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-16 10:11:47 -05:00
Michal Simek
ead5178bf4 usb: phy: Add ulpi IDs for SMSC USB3320 and TI TUSB1210
Add new ulpi IDs which are available on Xilinx Zynq boards.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-17 16:08:27 -07:00
Greg Kroah-Hartman
ea1990c379 Add new PHY drivers for SATA and USB in exynos, for USB in sunxi,
and a multi-purpose PHY in APM, all adapted to generic PHY framework.
 Adapted USB3 PHY driver in OMAP to generic PHY driver and also used
 the same driver for SATA in OMAP. It also includes miscellaneous cleanups
 and fixes.
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Merge tag 'for_3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next

Kishon writes:

Add new PHY drivers for SATA and USB in exynos, for USB in sunxi,
and a multi-purpose PHY in APM, all adapted to generic PHY framework.
Adapted USB3 PHY driver in OMAP to generic PHY driver and also used
the same driver for SATA in OMAP. It also includes miscellaneous cleanups
and fixes.
2014-03-09 11:16:38 -07:00
Kishon Vijay Abraham I
14da699bc0 phy: rename struct omap_control_usb to struct omap_control_phy
Rename struct omap_control_usb to struct omap_control_phy since it can
be used to control PHY of USB, SATA and PCIE. Also move the driver and
include files under *phy* and made the corresponding changes in the users
of phy-omap-control.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
2014-03-09 12:45:08 +05:30
Greg Kroah-Hartman
7338a06593 usb: patches for v3.15
another substantial pull request with new features all over
 the place.
 
 dwc3 got a bit closer towards hibernation support with after
 a few patches re-factoring code to be reused for hibernation.
 Also in dwc3 two new workarounds for known silicon bugs have
 been implemented, some randconfig build errors have been fixed,
 and it was taught about the new generic phy layer.
 
 MUSB on AM335x now supports isochronous transfers thanks to
 George Cherian's work.
 
 The atmel_usba driver got two crash fixes: one when no endpoint
 was specified in DeviceTree data and another when stopping the UDC
 in DEBUG builds.
 
 Function FS got a much needed fix to ffs_epfile_io() which was
 copying too much data to userspace in some cases.
 
 The printer gadget got a fix for a possible deadlock and plugged
 a memory leak.
 
 Ethernet drivers now use NAPI for RX which gives improved throughput.
 
 Other than that, the usual miscelaneous fixes, cleanups, and
 the like.
 
 Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v3.15

another substantial pull request with new features all over
the place.

dwc3 got a bit closer towards hibernation support with after
a few patches re-factoring code to be reused for hibernation.
Also in dwc3 two new workarounds for known silicon bugs have
been implemented, some randconfig build errors have been fixed,
and it was taught about the new generic phy layer.

MUSB on AM335x now supports isochronous transfers thanks to
George Cherian's work.

The atmel_usba driver got two crash fixes: one when no endpoint
was specified in DeviceTree data and another when stopping the UDC
in DEBUG builds.

Function FS got a much needed fix to ffs_epfile_io() which was
copying too much data to userspace in some cases.

The printer gadget got a fix for a possible deadlock and plugged
a memory leak.

Ethernet drivers now use NAPI for RX which gives improved throughput.

Other than that, the usual miscelaneous fixes, cleanups, and
the like.

Signed-of-by: Felipe Balbi <balbi@ti.com>
2014-03-07 16:47:36 -08:00
Kishon Vijay Abraham I
6284be23db phy: omap-usb2: move omap_usb.h from linux/usb/ to linux/phy/
No functional change. Moved omap_usb.h from linux/usb/ to linux/phy/.
Also removed the unused members of struct omap_usb (after phy-omap-pipe3
started using it's own header file)

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-07 21:51:45 +05:30
Li Jun
8bebbe8dc6 usb: phy: fsm: update OTG HNP state transition conditions according to OTG and EH 2.0 spec.
According to:"On-The-Go and Embedded Host Supplement to the USB Revision 2.0
Specification July 27, 2012 Revision 2.0 version 1.1a"
- From a_host to a_wait_bcon if !b_conn
- Add transition from a_host to a_wait_vfall if id state is high or a_bus_drop
- From a_wait_vfall to a_idle if a_wait_vfall_tmout

Signed-off-by: Li Jun <b47624@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-07 10:03:25 -06:00
Kishon Vijay Abraham I
a70143bbef drivers: phy: usb3/pipe3: Adapt pipe3 driver to Generic PHY Framework
Adapted omap-usb3 PHY driver to Generic PHY Framework and moved phy-omap-usb3
driver in drivers/usb/phy to drivers/phy and also renamed the file to
phy-ti-pipe3 since this same driver will be used for SATA PHY and
PCIE PHY.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-06 14:49:33 +05:30
Peter Chen
47d1845ffa usb: phy: mxs: Add sync time after controller clear phcd
After clear portsc.phcd, PHY needs 200us stable time for switch
32K clock to AHB clock.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05 14:40:09 -06:00
Peter Chen
bf78343800 usb: phy: mxs: Add system suspend/resume API
We need this to keep PHY's power on or off during the system
suspend mode. If we need to enable USB wakeup, then we
must keep PHY's power being on during the system suspend mode.
Otherwise, we need to keep PHY's power being off to save power.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05 14:40:09 -06:00
Peter Chen
3f1265056b usb: phy: mxs: Add implementation of set_wakeup
When we need the PHY can be waken up by external signals,
we can call this API. Besides, we call mxs_phy_disconnect_line
at this API to close the connection between USB PHY and
controller, after that, the line state from controller is SE0.
Once the PHY is out of power, without calling mxs_phy_disconnect_line,
there are unknown wakeups due to dp/dm floating at device mode.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05 14:40:09 -06:00
Peter Chen
83be181b64 usb: phy: mxs: add controller id
It is used to access un-regulator registers according to
different controllers.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05 14:40:08 -06:00
Peter Chen
22db05ecf2 usb: phy: mxs: Enable IC fixes for related SoCs
Two PHY bugs are fixed by IC logic, but these bits are not
enabled by default, so we enable them at driver.
The two bugs are: MXS_PHY_ABNORMAL_IN_SUSPEND and MXS_PHY_SENDING_SOF_TOO_FAST
which are described at code.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05 14:40:08 -06:00
Peter Chen
f6a158243e usb: phy: mxs: change description of usb device speed
Change "high speed" to "HS"
Change "non-high speed" to "FS/LS"

Implementation of notify_suspend and notify_resume will be different
according to mxs_phy_data->flags.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05 14:40:08 -06:00
Peter Chen
0d896538d8 usb: phy: mxs: Add anatop regmap
It is needed by imx6 SoC series, but not for imx23 and imx28.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05 14:40:07 -06:00
Peter Chen
1364414411 usb: phy: mxs: Add auto clock and power setting
The auto setting is used to open related power and clocks
automatically after receiving wakeup signal.

With this feature, the PHY's clock and power can be recovered
correctly from low power mode, it is guaranteed by IC logic.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05 14:40:07 -06:00
Peter Chen
2400780ea1 usb: phy: mxs: Add platform judgement code
The mxs-phy has several bugs and features at different
versions, the driver code can get it through of_device_id.data.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05 14:40:06 -06:00
Sergei Shtylyov
7241a21a71 usb: phy: rcar-gen2-usb: always use 'dev' variable in probe() method
The probe() method has the 'dev' local variable declared and used but strangely
not in all cases where it should be...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05 09:44:48 -06:00
Greg Kroah-Hartman
3c701651c8 Merge 3.14-rc4 into usb-next
We want the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-24 15:59:22 -08:00
Josh Cartwright
e7d613d1db usb: phy: msm: fix compilation errors when !CONFIG_PM_SLEEP
Both the PM_RUNTIME and PM_SLEEP callbacks call into the common
msm_otg_{suspend,resume} routines, however these routines are only being
built when CONFIG_PM_SLEEP.  In addition, msm_otg_{suspend,resume} also
depends on msm_hsusb_config_vddcx(), which is only built when
CONFIG_PM_SLEEP.

Fix the CONFIG_PM_RUNTIME, !CONFIG_PM_SLEEP case by changing the
preprocessor conditional, and moving msm_hsusb_config_vddcx().

While we're here, eliminate the CONFIG_PM conditional for setting
up the dev_pm_ops.

This address the following errors Russell King has hit doing randconfig
builds:

drivers/usb/phy/phy-msm-usb.c: In function 'msm_otg_runtime_suspend':
drivers/usb/phy/phy-msm-usb.c:1691:2: error: implicit declaration of function 'msm_otg_suspend'
drivers/usb/phy/phy-msm-usb.c: In function 'msm_otg_runtime_resume':
drivers/usb/phy/phy-msm-usb.c:1699:2: error: implicit declaration of function 'msm_otg_resume'

Cc: Ivan T. Ivanov <iivanov@mm-sol.com>
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-02-20 09:17:24 -06:00
Dan Carpenter
5c73e74034 usb: phy: msm: tiny leak on error in probe()
Free "motog" on error.  This is more to appease the static checkers than
a real worry.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-07 14:41:05 -08:00
Josh Boyer
e9d123a50b usb: phy: move some error messages to debug
the PHY layer is supposed to be optional,
considering some PHY have no control bus
for SW to poke around.

After commit 1ae5799 (usb: hcd: Initialize
USB phy if needed) any HCD which didn't provide
a PHY driver would emit annoying error messages.

In this patch we're decreasing those messages
to debugging only and we also add a PHY prefix
or use dev_dbg so we know where they're coming from.

Reported-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-04 12:59:14 -08:00
Linus Torvalds
0ba3307a8e ARM: driver updates for 3.14
Updates of SoC-near drivers and other driver updates that makes more sense to
 take through our tree.
 
 The largest part of this is a conversion of device registration for some
 renesas shmobile/sh devices over to use resources. This has required
 coordination with the corresponding arch/sh changes, and we've agreed
 to merge the arch/sh changes through our tree.
 
 Added in this branch is support for Trusted Foundations secure firmware,
 which is what is used on many of the commercial Nvidia Tegra products
 that are in the market, including the Nvidia Shield. The code is local
 to arch/arm at this time since it's uncertain whether it will be shared
 with arm64 longer-term, if needed we will refactor later.
 
 A couple of new RTC drivers used on ARM boards, merged through our tree
 on request by the RTC maintainer.
 
 ... plus a bunch of smaller updates across the board, gpio conversions
 for davinci, etc.
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Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM driver updates from Olof Johansson:
 "Updates of SoC-near drivers and other driver updates that makes more
  sense to take through our tree.

  The largest part of this is a conversion of device registration for
  some renesas shmobile/sh devices over to use resources.  This has
  required coordination with the corresponding arch/sh changes, and
  we've agreed to merge the arch/sh changes through our tree.

  Added in this branch is support for Trusted Foundations secure
  firmware, which is what is used on many of the commercial Nvidia Tegra
  products that are in the market, including the Nvidia Shield.  The
  code is local to arch/arm at this time since it's uncertain whether it
  will be shared with arm64 longer-term, if needed we will refactor
  later.

  A couple of new RTC drivers used on ARM boards, merged through our
  tree on request by the RTC maintainer.

  ... plus a bunch of smaller updates across the board, gpio conversions
  for davinci, etc"

* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (45 commits)
  watchdog: davinci: rename platform driver to davinci-wdt
  tty: serial: Limit msm_serial_hs driver to platforms that use it
  mmc: msm_sdcc: Limit driver to platforms that use it
  usb: phy: msm: Move mach dependent code to platform data
  clk: versatile: fixup IM-PD1 clock implementation
  clk: versatile: pass a name to ICST clock provider
  ARM: integrator: pass parent IRQ to the SIC
  irqchip: versatile FPGA: support cascaded interrupts from DT
  gpio: davinci: don't create irq_domain in case of unbanked irqs
  gpio: davinci: use chained_irq_enter/chained_irq_exit API
  gpio: davinci: add OF support
  gpio: davinci: remove unused variable intc_irq_num
  gpio: davinci: convert to use irqdomain support.
  gpio: introduce GPIO_DAVINCI kconfig option
  gpio: davinci: get rid of DAVINCI_N_GPIO
  gpio: davinci: use {readl|writel}_relaxed() instead of __raw_*
  serial: sh-sci: Add OF support
  serial: sh-sci: Add device tree bindings documentation
  serial: sh-sci: Remove platform data mapbase and irqs fields
  serial: sh-sci: Remove platform data scbrr_algo_id field
  ...
2014-01-23 18:49:36 -08:00
Olof Johansson
64576e4397 Merge branch 'qcom/drivers' into next/drivers
* qcom/drivers:
  tty: serial: Limit msm_serial_hs driver to platforms that use it
  mmc: msm_sdcc: Limit driver to platforms that use it
  usb: phy: msm: Move mach dependent code to platform data

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-09 00:07:32 -08:00
Ivan T. Ivanov
5146d77143 usb: phy: msm: Move mach dependent code to platform data
This patch fix compilation error when driver is compiled
in multi-platform builds.

drivers/built-in.o: In function `msm_otg_link_clk_reset':
./drivers/usb/phy/phy-msm-usb.c:314: undefined reference to `clk_reset'
./drivers/usb/phy/phy-msm-usb.c:318: undefined reference to `clk_reset'

Use platform data supplied reset handlers and adjust error
messages reported when reset sequence fail.

This is an intermediate step before adding support for reset
framework and newer targets.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-09 00:06:48 -08:00
Paul Gortmaker
803a536243 usb: delete non-required instances of include <linux/init.h>
None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>.  Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-08 15:01:39 -08:00
Greg Kroah-Hartman
73ad0adcb6 usb: changes for v3.14 merge window
This pull request is quite extensive, containing
 105 non-merge commits. Because of that, we describe
 the changes in sections below:
 
 New drivers:
 	- Keystone PHY driver and DWC3 Glue Layer
 	- Aeroflex Gaisler GRUSBDC
 	- Tahvo PHY driver for N770
 	- JZ4740 MUSB gluer Layer
 	- Broadcom PHY Driver
 
 Important new features:
 	- MUSB DSPS learned about suspend/resume
 	- New quirk_ep_out_aligned_size flag added to struct usb_gadget
 	- DWC3 initializes the new quirk flag so gadget drivers can use it.
 	- AM335x PHY Driver learns about remote wakeup
 	- Renesas USBHS now requests DMA Engine only once
 	- s3c-hsotg is now re-used on Broadcom devices
 	- USB PHY layer now makes sure to initialize the notifier for all
 		drivers
 	- omap-control learned about TI's new AM437x devices
 	- few other usb gadget/function drivers learned about the new
 		configfs-based binding.
 
 Misc Fixes and Clean Ups:
 	- Several sparse fixes all over the place
 	- Removal of redundant of_match_ptr()
 	- r-car gen2 phy now uses usb_add_phy_dev()
 	- removal of DEFINE_PCI_DEVICE_TABLE() from a few drivers
 	- conversion to clk_prepare/clk_unprepare on r8a66597-udc
 	- some randconfig errors and build warnings were fixed
 	- removal of unnecessary lock on dwc3-omap.c
 
 Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: changes for v3.14 merge window

This pull request is quite extensive, containing
105 non-merge commits. Because of that, we describe
the changes in sections below:

New drivers:
	- Keystone PHY driver and DWC3 Glue Layer
	- Aeroflex Gaisler GRUSBDC
	- Tahvo PHY driver for N770
	- JZ4740 MUSB gluer Layer
	- Broadcom PHY Driver

Important new features:
	- MUSB DSPS learned about suspend/resume
	- New quirk_ep_out_aligned_size flag added to struct usb_gadget
	- DWC3 initializes the new quirk flag so gadget drivers can use it.
	- AM335x PHY Driver learns about remote wakeup
	- Renesas USBHS now requests DMA Engine only once
	- s3c-hsotg is now re-used on Broadcom devices
	- USB PHY layer now makes sure to initialize the notifier for all
		drivers
	- omap-control learned about TI's new AM437x devices
	- few other usb gadget/function drivers learned about the new
		configfs-based binding.

Misc Fixes and Clean Ups:
	- Several sparse fixes all over the place
	- Removal of redundant of_match_ptr()
	- r-car gen2 phy now uses usb_add_phy_dev()
	- removal of DEFINE_PCI_DEVICE_TABLE() from a few drivers
	- conversion to clk_prepare/clk_unprepare on r8a66597-udc
	- some randconfig errors and build warnings were fixed
	- removal of unnecessary lock on dwc3-omap.c

Signed-of-by: Felipe Balbi <balbi@ti.com>
2014-01-03 12:15:10 -08:00
Wei Yongjun
836a216449 usb: phy: keystone: remove redundant return value check of platform_get_resource()
Remove unneeded error handling on the result of a call
to platform_get_resource() when the value is passed to
devm_ioremap_resource().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-26 10:19:01 -06:00
Greg Kroah-Hartman
99f14bd4d1 Merge 3.13-rc5 into usb-next
This resolves the merge issue with drivers/usb/host/ohci-at91.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-24 10:18:03 -08:00
Felipe Balbi
e90b8417af Linux 3.13-rc5
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Merge tag 'v3.13-rc5' into next

Linux 3.13-rc5

* tag 'v3.13-rc5': (231 commits)
  Linux 3.13-rc5
  aio: clean up and fix aio_setup_ring page mapping
  aio/migratepages: make aio migrate pages sane
  aio: fix kioctx leak introduced by "aio: Fix a trinity splat"
  Don't set the INITRD_COMPRESS environment variable automatically
  mm: fix build of split ptlock code
  pstore: Don't allow high traffic options on fragile devices
  mm: do not allocate page->ptl dynamically, if spinlock_t fits to long
  mm: page_alloc: revert NUMA aspect of fair allocation policy
  Revert "mm: page_alloc: exclude unreclaimable allocations from zone fairness policy"
  mm: Fix NULL pointer dereference in madvise(MADV_WILLNEED) support
  qla2xxx: Fix scsi_host leak on qlt_lport_register callback failure
  target: Remove extra percpu_ref_init
  arm64: ptrace: avoid using HW_BREAKPOINT_EMPTY for disabled events
  ARC: Allow conditional multiple inclusion of uapi/asm/unistd.h
  target/file: Update hw_max_sectors based on current block_size
  iser-target: Move INIT_WORK setup into isert_create_device_ib_res
  iscsi-target: Fix incorrect np->np_thread NULL assignment
  mm/hugetlb: check for pte NULL pointer in __page_check_address()
  fix build with make 3.80
  ...

Conflicts:
	drivers/usb/phy/Kconfig
2013-12-23 11:22:46 -06:00
Aaro Koskinen
12c8d64e29 usb: phy: fix some Kconfig descriptions
Some module names are not up to date in Kconfig help texts. Fix that.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-23 10:14:42 -06:00
Aaro Koskinen
8b42a746e8 usb: phy: isp1301-omap: fix smatch warnings
phy-isp1301-omap produces the following smatch warnings:

drivers/usb/phy/phy-isp1301-omap.c:1280 isp1301_set_host() warn: variable dereferenced before check 'otg' (see line 1278)
drivers/usb/phy/phy-isp1301-omap.c:1336 isp1301_set_peripheral() warn: variable dereferenced before check 'otg' (see line 1334)
drivers/usb/phy/phy-isp1301-omap.c:1417 isp1301_start_srp() warn: variable dereferenced before check 'otg' (see line 1414)
drivers/usb/phy/phy-isp1301-omap.c:1445 isp1301_start_hnp() warn: variable dereferenced before check 'otg' (see line 1442)

Fix by deleting bogus NULL pointer checks. The USB framework will always
call us with a valid OTG pointer.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-23 10:14:40 -06:00
Aaro Koskinen
80f46d5dcb usb: phy: tahvo: fix smatch warnings
phy-tahvo introduced the following smatch warnings:

drivers/usb/phy/phy-tahvo.c:203 tahvo_usb_set_host() warn: variable dereferenced before check 'otg' (see line 199)
drivers/usb/phy/phy-tahvo.c:235 tahvo_usb_set_peripheral() warn: variable dereferenced before check 'otg' (see line 231)

Fix by deleting bogus NULL pointer checks. The USB framework will always
call us with a valid OTG pointer.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-23 10:14:33 -06:00
Sachin Kamat
2ee8ff3084 usb: phy-twl6030: Add missing braces
Silences the below warning:
WARNING: sizeof *twl should be sizeof(*twl)

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-23 10:13:34 -06:00
Sachin Kamat
7410f172ae usb: phy-fsm: Staticize local symbols
Local symbols appearing only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-23 10:13:33 -06:00
Sachin Kamat
ed40082da0 usb: phy-keystone: Remove redundant of_match_ptr helper
'keystone_usbphy_ids' is always compiled in. Hence the
helper macro is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: WingMan Kwok <w-kwok2@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-23 10:13:33 -06:00
Anton Tikhomirov
16da4b174b usb: phy: Fix double lock in OTG FSM
Mutex obtained at the beginning of the function should
be released at the end to avoid double locking.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-20 15:05:49 -06:00
Felipe Balbi
515610011e usb: phy: am335x: fix randconfig errors
by using SET_SYSTEM_SLEEP_PM_OPS, we will make
sure that we don't use undefined functions.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-20 15:04:09 -06:00
George Cherian
c4b34a3b7a usb: phy: omap: Add omap-control Support for AM437x
This adds omap control module support for USBSS in AM437x SoC.
Update DT binding information to reflect these changes.

Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-19 09:27:42 -06:00
Rashika Kheria
db67bc04bd usb: phy: am335x-control: include appropriate header file in phy-am335x-control.c
Include header file drivers/usb/phy/am35x-phy-control.h in
phy/phy-am335x-control.c because function am335x_get_phy_control() has
its prototype declaration in drivers/usb/phy/am35x-phy-control.h.

Also, remove definition of structure phy_control because it is already
defined in the included header.

This eliminates the following warning in phy/phy-am335x-control.c:
drivers/usb/phy/phy-am335x-control.c:114:21: warning: no previous prototype for ‘am335x_get_phy_control’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-19 09:27:42 -06:00
George Cherian
2fc711d763 usb: phy: am335x: Enable USB remote wakeup using PHY wakeup
USB remote wakeup using PHY wakeup is supported only in standby mode.
Enabling the PHY_WKUP will break DS0 mode of system suspend.
If the same is enabled while entering DS0, AM33xx never stays in DS0,
it returns immediately from DS0. By default make the PHY wakeup
disabled, using sysfs entry enable the same manually to get
the remote wakeup working from standby.

echo enabled > /sys/bus/platform/device/<usb phy id>/power/wakeup
This will enable the PHY wakeup while going to standby.

PHY wakeup feature is required to wakeup  the system from standby
state. Since AM33xx has a bug in which PHY wakeup should not
be enabled while entering DS0, disable the same by default.
A user wishing to use USB wakeup from standby mode need to enable
the same using the sysfs entries.

Also remove am335x_phy_runtime_(suspend/resume) this driver doesnot really
enable/disable the clocks to the PHY.
Add am335x_phy_(suspend/resume) and use the same for enabling the PHY_WKUP.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-19 09:27:41 -06:00
Felipe Balbi
c139e1425f Linux 3.13-rc4
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Merge tag 'v3.13-rc4' into next

Linux 3.13-rc4

* tag 'v3.13-rc4': (1001 commits)
  Linux 3.13-rc4
  null_blk: mem garbage on NUMA systems during init
  radeon_pm: fix oops in hwmon_attributes_visible() and radeon_hwmon_show_temp_thresh()
  Revert "selinux: consider filesystem subtype in policies"
  igb: Fix for issue where values could be too high for udelay function.
  i40e: fix null dereference
  ARM: fix asm/memory.h build error
  dm array: fix a reference counting bug in shadow_ablock
  dm space map: disallow decrementing a reference count below zero
  mm: memcg: do not allow task about to OOM kill to bypass the limit
  mm: memcg: fix race condition between memcg teardown and swapin
  thp: move preallocated PTE page table on move_huge_pmd()
  mfd/rtc: s5m: fix register updating by adding regmap for RTC
  rtc: s5m: enable IRQ wake during suspend
  rtc: s5m: limit endless loop waiting for register update
  rtc: s5m: fix unsuccesful IRQ request during probe
  drivers/rtc/rtc-s5m.c: fix info->rtc assignment
  include/linux/kernel.h: make might_fault() a nop for !MMU
  drivers/rtc/rtc-at91rm9200.c: correct alarm over day/month wrap
  procfs: also fix proc_reg_get_unmapped_area() for !MMU case
  ...

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-19 09:18:53 -06:00
Felipe Balbi
7cd0c298f6 usb: phy: fix driver dependencies
both isp1301-omap and fsl_usb2_otg drivers
depend on usb_bus_start_enum() which is only
defined if CONFIG_USB != n. There is a problem,
however, where both those drivers could be
statically linked, while CONFIG_USB=m.

Fix the problem by fixing driver dependency.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-16 21:31:24 -08:00
Greg Kroah-Hartman
d59abb9325 Merge branch 3.13-rc4 into usb-next 2013-12-16 08:46:03 -08:00
Neil Zhang
31e322272d usb: phy: initialize the notifier when add a new phy
We need to initialize the notifer before use it.

So lets initialize it when add a new phy device to
reduce the code redundancy.

Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-12 13:43:34 -06:00
WingMan Kwok
25acdd08fd usb: phy: add Keystone usb phy driver
Add Keystone platform USB PHY driver support. Current main purpose
of this driver is to enable the PHY reference clock gate on the
Keystone SoC. Otherwise it is a nop PHY.

[ balbi@ti.com : add COMPILE_TEST as a possible dependency
	make sure drvdata is initialized before adding PHY ]

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: WingMan Kwok <w-kwok2@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-12 13:43:34 -06:00
Valentine Barshak
c3e5d2985e usb: phy: r-car gen2: use usb_add_phy_dev
Use usb_add_phy_dev instead of usb_add_phy, so that devices can
be bound to the phy. This is needed to set up USB phy for
some internal PCI USB host controllers on R-Car Gen2.

Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-09 14:59:53 -06:00
Peter Chen
3c9740a117 usb: hcd: move controller wakeup setting initialization to individual driver
Individual controller driver has different requirement for wakeup
setting, so move it from core to itself. In order to align with
current etting the default wakeup setting is enabled (except for
chipidea host).

Pass compile test with below commands:
	make O=outout/all allmodconfig
	make -j$CPU_NUM O=outout/all drivers/usb

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-08 18:06:46 -08:00
Aaro Koskinen
9ba96ae507 usb: omap1: Tahvo USB transceiver driver
Add Tahvo USB transceiver driver.

Based on old code from linux-omap tree. The original driver was written
by Juha Yrjölä, Tony Lindgren, and Timo Teräs.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-06 14:46:32 -06:00
Aaro Koskinen
449d2ba613 usb: omap1: OTG controller driver
Transceivers need to manage OTG controller state on OMAP1 to enable
switching between peripheral and host modes. Provide a driver for that.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-06 14:40:26 -06:00
Chris Ruehl
851dd02b4f usb: phy-tegra-usb.c: wrong pointer check for remap UTMI
usb: phy-tegra-usb.c: wrong pointer check for remap UTMI

A wrong pointer was used to test the result of devm_ioremap()

Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Chris Ruehl <chris.ruehl@gtsys.com.hk>
Acked-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-06 14:32:15 -06:00
Fabio Estevam
67c21fc803 usb: phy: phy-mxs-usb: Check the return value from clk_prepare_enable()
clk_prepare_enable() may fail, so let's check its return value and propagate it
in the case of error.

Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-12-06 14:30:56 -06:00
Anton Tikhomirov
e1d2e31975 usb: phy: Add OTG FSM configuration option
This patch removes dependency on Freescale USB UTG Transceiver
driver and makes OTG FSM implementation selectable.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-11-26 10:58:18 -06:00
Anton Tikhomirov
5653668c95 usb: phy: move OTG FSM header
Other USB drivers may want to use OTG final state machine
implementation, so make this header available for them.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-11-26 10:58:18 -06:00
Anton Tikhomirov
16e569e966 usb: phy: replace spinlock with mutex in OTG FSM
OTG Final State Machine calls functions which may sleep.

For example, start_gadget callback implementation can use
usb_gadget_vbus_connect(), whose context: can sleep.

If so, mutex should be used instead of spinlock.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-11-26 10:58:18 -06:00
Anton Tikhomirov
d49dd78884 usb: phy: fsm: protect against multiple inclusions
if this header is included twice, we would have
redefinition build errors. Fix this.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-11-26 10:58:17 -06:00
Felipe Balbi
cc9d9ccf2a usb: phy: fsm: don't depend on indirect includes
this header uses spinlocks and errno values, so
we must include <linux/spinlock.h> and <linux/errno.h>
to avoid build errors.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-11-26 10:58:17 -06:00
Dan Carpenter
0b55149033 usb: phy: twl6030-usb: signedness bug in twl6030_readb()
"ret" needs to be signed for the error handling to work.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-11-25 15:53:43 -06:00
Valentine Barshak
c8ba8115a2 usb: phy: phy-rcar-gen2-usb: fix phy initialization
Add missing USB UGCTRL2 register offset.

Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-11-25 10:56:55 -06:00
Wei Yongjun
e8d68f88bc usb: phy: phy-generic: fix return value check in usb_nop_xceiv_register()
In case of error, the function platform_device_register_simple() returns
ERR_PTR() and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-11-25 10:56:48 -06:00
Jisheng Zhang
97a27f7340 usb: phy: phy-mxs-usb: set the correct platform drvdata
We need to set mxs_phy rather as the platform drvdata so that we can get
the correct mxs_phy in mxs_phy_remove().

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-11-25 10:54:25 -06:00
Heikki Krogerus
37cfbc4288 usb: phy: generic: fix a compiler warning
Just because it annoys me.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-11-25 10:25:59 -06:00
Aaro Koskinen
dc52c57411 usb: phy-generic: fix nop xceiv probe
Commit bd27fa44e1 (usb: phy: generic:
Don't use regulator framework for RESET line) introduced regression: All
users of usb_nop_xceiv_register() will fail because there is no platform
data and the default reset GPIO is 0 which is a valid GPIO. Fix that.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-11-25 10:25:59 -06:00
Felipe Balbi
af9f51c551 usb: phy: generic: fix how we find out about our resources
instead of having each user of generic phy find
out about its own resources and pass it to the
core layer, have th core layer itself figure that
out. It's as simple as moving a piece of code
around. This fixes a big regression caused during
the merge window where am335x-based platforms
wouldn't be able to probe their PHY driver.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-11-25 10:25:57 -06:00
Michal Nazarewicz
39189c98d1 usb: phy: remove dead code
Commit [4d175f34: usb: phy: nop: Defer clock prepare until PHY init]
removed a goto reaching behind a “return ret” at the end of the function
thus removing the only possible way that statement could be reached, and
so rendering it a dead code.  This commit cleans it up by removing said
dead code.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-11-25 10:25:39 -06:00
Anton Tikhomirov
488c9cd34b USB: phy: samsung: Support multiple PHYs of same type
This patch removes limitation when only one PHY of specific type
could be used.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29 16:46:48 -07:00
Greg Kroah-Hartman
5328f35b15 usb: patches for v3.13
Final conversions to configfs for mass storage, acm_ms, and
 multi gadgets.
 
 MUSB should now work out of the box on AM335x-based boards
 (beagle bone white and black) with DMA thanks to Sebastian's
 work.
 
 We can now enable VERBOSE_DEBUG on builds of drivers/usb/gadget/
 by selecting CONFIG_USB_GADGET_VERBOSE.
 
 s3c-hsotg got quite a few non-critical fixes but also learned
 a few new tricks (isochronous transfers, multi count support).
 
 The Marvel USB3 Controller driver got a memory leak fix.
 
 devm_usb_get_phy() learned not to return NULL, ever.
 
 Other than these patches, we have the usual set of cleanups
 ranging from removal of unnecessary *_set_drvdata() to using
 SIMPLE_DEV_PM_OPS.
 
 Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v3.13

Final conversions to configfs for mass storage, acm_ms, and
multi gadgets.

MUSB should now work out of the box on AM335x-based boards
(beagle bone white and black) with DMA thanks to Sebastian's
work.

We can now enable VERBOSE_DEBUG on builds of drivers/usb/gadget/
by selecting CONFIG_USB_GADGET_VERBOSE.

s3c-hsotg got quite a few non-critical fixes but also learned
a few new tricks (isochronous transfers, multi count support).

The Marvel USB3 Controller driver got a memory leak fix.

devm_usb_get_phy() learned not to return NULL, ever.

Other than these patches, we have the usual set of cleanups
ranging from removal of unnecessary *_set_drvdata() to using
SIMPLE_DEV_PM_OPS.

Signed-of-by: Felipe Balbi <balbi@ti.com>
2013-10-24 16:18:40 +01:00
Sachin Kamat
80d7d8a768 usb: phy: twl6030-usb: Include linux/of.h header
'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-17 11:33:20 -05:00
Joe Perches
2b84f92b81 usb: Remove unnecessary semicolons
These aren't necessary after switch and if blocks.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-11 16:26:46 -07:00
Gabor Juhos
7f4d1e7bdd usb: phy: don't return with NULL from devm_usb_get_phy()
The callers are expecting an ERR_PTR value in case
of an error. Change he code to return with an encoded
-ENOMEM value in the case of a failed devres_alloc call.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-11 13:50:38 -05:00
Valentine Barshak
5578b266e9 usb: phy: Add RCAR Gen2 USB phy
This adds RCAR Gen2 USB phy support. The driver configures
USB channels 0/2 which are shared between PCI USB hosts and
USBHS/USBSS devices. It also controls internal USBHS phy.

Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-10 11:59:48 -05:00
Greg Kroah-Hartman
4c015ba24b Merge 3.12-rc4 into usb-next
We want the USB fixes in this branch as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-06 17:33:56 -07:00
Anton Tikhomirov
4662e5ef54 usb: phy: Reordering of OTG FSM variables
Reorder variables in struct otg_fsm as they appear in OTG and EH
supplement to USB2.0.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-04 09:44:50 -05:00
Anton Tikhomirov
ec04996a08 usb: phy: Add and use missed OTG FSM inputs/outputs
Several input/output variables missed in current FSM implementation.
This patch adds and makes use of them as specified in OTG and EH
supplement to USB2.0.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-04 09:44:49 -05:00
Anton Tikhomirov
68041785d0 usb: phy: Rename "B-device session end SRP" OTG FSM input
In accordance with OTG and EH supplement, the correct name
of the FSM input is b_ssend_srp.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-04 09:44:49 -05:00
Anton Tikhomirov
cff4dab4cb usb: phy: Rename OTG FSM informative variables
Mark informative variables with suffix '_inf' to distinguish
them from other non-informative variables with the same name.
If such non-informative varialbes were missed, they are created.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-04 09:44:48 -05:00
Anton Tikhomirov
3294908bc0 usb: phy: Add and use missed OTG FSM timers
a_bidl_adis_tmr and a_wait_vfall_tmr OTG timers missed in
current FSM implementation. This patch adds and makes use
of the timers as speicfied in OTG and EH supplement to USB2.0.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-04 09:44:47 -05:00
Anton Tikhomirov
f6de27eed3 usb: phy: Fix OTG FSM timer handling
Get rid of using OTG driver specific timers by passing timer
type to corresponding callbacks.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-04 09:44:46 -05:00
Anton Tikhomirov
425d710172 usb: phy: Add and use missed helper functions
This patch implements missed helper functions for start_gadget() and
start_host() OTG FSM callbacks.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-04 09:44:46 -05:00
Anton Tikhomirov
737cc66eac usb: phy: Check OTG FSM callback existance in helper functions
Existence of callback must be checked to avoid NULL pointer
dereferncing.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-04 09:44:45 -05:00
Anton Tikhomirov
da8cc16724 usb: phy: Pass OTG FSM pointer to callback functions
struct otg_fsm may be embedded to device's context structure.
The callbacks may require pointer to struct otg_fsm to obtain
necessary data for its operation (example: regulator reference
for drv_vbus()).

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-04 09:44:44 -05:00
Roger Quadros
bd27fa44e1 usb: phy: generic: Don't use regulator framework for RESET line
Modelling the RESET line as a regulator supply wasn't a good idea
as it kind of abuses the regulator framework and also makes adaptation
code more complex.

Instead, manage the RESET gpio line directly in the driver. Update
the device tree binding information.

This also makes us easy to migrate to a dedicated GPIO RESET controller
whenever it becomes available.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-04 09:29:03 -05:00
Roger Quadros
0bb85dc2d3 usb: phy: omap: get rid of omap_get_control_dev()
This function was preventing us from supporting multiple
instances. Get rid of it. Since we support DT boots only,
users can get the control device phandle from the DT node.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-03 15:47:31 -07:00
Roger Quadros
918ee0d21b usb: phy: omap-usb3: Don't use omap_get_control_dev()
omap_get_control_dev() is being deprecated as it doesn't support
multiple instances. As control device is present only from OMAP4
onwards which supports DT only, we use phandles to get the
reference to the control device.

As we don't support non-DT boot, we just bail out on probe
if device node is not present.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-03 15:47:31 -07:00
Roger Quadros
6cb9310a32 usb: phy: omap: Add new device types and remove omap_control_usb3_phy_power()
Add support for new device types and in the process rid of "ti,type"
device tree property. The correct type of device will be determined
from the compatible string instead.

Introduce a compatible string for each device type. At the moment
we support 4 types OTGHS, USB2, PIPE3 (e.g. USB3) and DRA7USB2.

Update DT binding information to reflect these changes.

Also get rid of omap_control_usb3_phy_power(). Just one function
i.e. omap_control_usb_phy_power() will now take care of all PHY types.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-03 15:47:30 -07:00
Roger Quadros
4fd06af96b usb: phy: omap-control: Get rid of platform data
omap-control device is present from OMAP4 onwards which
support device tree boots only. So get rid of platform data.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-03 15:47:30 -07:00
Sachin Kamat
78723920a6 usb: phy: tegra-usb: Remove redundant of_match_ptr
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-01 09:56:26 -05:00
Sachin Kamat
b99fffca7d usb: phy: am335x: Remove redundant of_match_ptr
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-01 09:56:25 -05:00
Sachin Kamat
c4df9ae0d6 usb: phy: am335x-control: Remove redundant of_match_ptr
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-01 09:56:24 -05:00
Pali Rohár
80d2e76c2e usb: musb: Add missing ATOMIC_INIT_NOTIFIER_HEAD
&twl->phy.notifier is not initalized

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-01 09:31:13 -05:00
Sebastian Andrzej Siewior
a12226394e usb: phy: am335x: add wakeup support
This is based on George Cherian's patch which added power & wakeup
support to am335x and does no longer apply since I took some if the code
apart in favor of the multi instance support.
This compiles and I boots and later it detects a device after I plug it in :)
Could somebody please test it so it does what it should?

Cc: George Cherian <george.cherian@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-01 09:31:11 -05:00
Mark Brown
4d175f340c usb: phy: nop: Defer clock prepare until PHY init
Since we only enable the PHY clock on init and the PHY init and shutdown
does not occur in atomitc context there is no need to prepare the clock
before it is enabled.  Move the clk_prepare() operations to go along
with the enables, allowing the clock to be fully idle when not in use.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-01 09:31:10 -05:00
Kishon Vijay Abraham I
6747caa76c usb: phy: twl4030: use the new generic PHY framework
Used the generic PHY framework API to create the PHY. For powering on
and powering off the PHY, power_on and power_off ops are used. Once the
MUSB OMAP glue is adapted to the new framework, the suspend and resume
ops of usb phy library will be removed. Also twl4030-usb driver is moved
to drivers/phy/.

However using the old usb phy library cannot be completely removed
because otg is intertwined with phy and moving to the new
framework completely will break otg. Once we have a separate otg state machine,
we can get rid of the usb phy library.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-27 17:36:58 -07:00
Kishon Vijay Abraham I
5d93d1e76a usb: phy: omap-usb2: use the new generic PHY framework
Used the generic PHY framework API to create the PHY. Now the power off and
power on are done in omap_usb_power_off and omap_usb_power_on respectively.
The omap-usb2 driver is also moved to driver/phy.

However using the old USB PHY library cannot be completely removed
because OTG is intertwined with PHY and moving to the new framework
will break OTG. Once we have a separate OTG state machine, we
can get rid of the USB PHY library.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-27 17:36:21 -07:00
Dave Jones
7ba0127805 USB: phy: Restrict AM335x PHY driver to only be built on !ARM when COMPILE_TEST is set.
Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-26 16:25:20 -07:00
Johan Hovold
eaaa775b5f usb: phy: gpio-vbus: fix deferred probe from __init
Move probe out of __init section and don't use platform_driver_probe
which cannot be used with deferred probing.

Since commit e9354576 ("gpiolib: Defer failed gpio requests by default")
and 04bf3011 ("regulator: Support driver probe deferral") this driver
might return -EPROBE_DEFER if a gpio_request or regulator_get fails.

Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-23 14:29:50 -05:00
Sachin Kamat
1b97be8ce4 usb: phy: omap-usb3: Fix return value
The function returns a pointer. Hence return NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 11:05:30 -05:00
Libo Chen
72031b524c usb: phy-tegra-usb: use platform_{get,set}_drvdata()
Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &of->dev,
so we can directly pass a struct platform_device.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-30 11:11:35 -07:00
Dan Carpenter
0f82768406 usb: phy: signedness bugs in suspend/resume functions
"ret" needs to be signed for the error handling to work.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-27 15:05:30 -05:00
Anatolij Gustschin
9473e8cfc7 usb: phy: fix build breakage
Commit 94ae9843 (usb: phy: rename all phy drivers to phy-$name-usb.c)
renamed drivers/usb/phy/otg_fsm.h to drivers/usb/phy/phy-fsm-usb.h
but changed drivers/usb/phy/phy-fsm-usb.c to include not existing
"phy-otg-fsm.h" instead of new "phy-fsm-usb.h". This breaks building:
  ...
  drivers/usb/phy/phy-fsm-usb.c:32:25: fatal error: phy-otg-fsm.h: No such file or directory
  compilation terminated.
  make[3]: *** [drivers/usb/phy/phy-fsm-usb.o] Error 1

This commit also missed to modify drivers/usb/phy/phy-fsl-usb.h
to include new "phy-fsm-usb.h" instead of "otg_fsm.h" resulting
in another build breakage:
  ...
  In file included from drivers/usb/phy/phy-fsl-usb.c:46:0:
  drivers/usb/phy/phy-fsl-usb.h:18:21: fatal error: otg_fsm.h: No such file or directory
  compilation terminated.
  make[3]: *** [drivers/usb/phy/phy-fsl-usb.o] Error 1

Fix both issues.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-27 15:02:32 -05:00
Sebastian Andrzej Siewior
4ff745710f usb: phy: am335x-control: make it compile with
Randy reported this
|drivers/usb/phy/phy-am335x-control.c:45:3: error: implicit declaration
|of function '__WARN' [-Werror=implicit-function-declaration]

and left it as an excercice to figure out that this happens only with
CONFIG_BUG=n. As a fix I replace it with WARN_ON(). And there is a space
before return so fix this, too.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-27 14:07:50 -05:00
Greg Kroah-Hartman
165f60642a usb: patches for v3.12 merge window
All patches here have been pending on linux-usb
 and sitting in linux-next for a while now.
 
 The biggest things in this tag are:
 
 DWC3 learned proper usage of threaded IRQ
 handlers and now we spend very little time
 in hardirq context.
 
 MUSB now has proper support for BeagleBone and
 Beaglebone Black.
 
 Tegra's USB support also got quite a bit of love
 and is learning to use PHY layer and generic DT
 attributes.
 
 Other than that, the usual pack of cleanups and
 non-critical fixes follow.
 
 Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v3.12 merge window

All patches here have been pending on linux-usb
and sitting in linux-next for a while now.

The biggest things in this tag are:

DWC3 learned proper usage of threaded IRQ
handlers and now we spend very little time
in hardirq context.

MUSB now has proper support for BeagleBone and
Beaglebone Black.

Tegra's USB support also got quite a bit of love
and is learning to use PHY layer and generic DT
attributes.

Other than that, the usual pack of cleanups and
non-critical fixes follow.

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

Conflicts:
	drivers/usb/gadget/udc-core.c
	drivers/usb/host/ehci-tegra.c
	drivers/usb/musb/omap2430.c
	drivers/usb/musb/tusb6010.c
2013-08-13 15:28:01 -07:00
Sebastian Andrzej Siewior
8b841cb217 usb: phy: am335x: include linux/err.h
Stephen Rothwell reported that this driver does not compile on PowerPC
due to this missing include. One could argue why this driver is enabled
on PowerPC in the first place but it sure isn't wrong to include headers
for used function instead of to rely that they sneak in.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-13 14:59:13 -05:00
Tuomas Tynkkynen
e497a24d8e usb: phy: tegra: Program new PHY parameters
The Tegra30 TRM recommends configuration of certain PHY parameters for
optimal quality. Program the following registers based on device tree
parameters:

- UTMIP_XCVR_HSSLEW: HS slew rate control.
- UTMIP_HSSQUELCH_LEVEL: HS squelch detector level
- UTMIP_HSDISCON_LEVEL: HS disconnect detector level.

These registers exist in Tegra20, but programming them hasn't been
necessary, so these parameters won't be set on Tegra20 to keep the
device trees backward compatible.

Additionally, the UTMIP_XCVR_SETUP parameter can be set from fuses
instead of a software-programmed value, as the optimal value can
vary between invidual boards. The boolean property
nvidia,xcvr-setup-use-fuses can be used to enable this behaviour.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-12 13:29:52 -05:00
Tuomas Tynkkynen
3e635202ce usb: phy: tegra: Tegra30 support
The Tegra30 USB PHY is a bit different than the Tegra20 PHY:

- The EHCI controller supports the HOSTPC register extension, and some
  of the fields that the PHY needs to modify (PHCD and PTS) have moved
  to the new HOSTPC register.
- Some of the UTMI PLL configuration registers have moved from the USB
  register space to the Clock-And-Reset controller space. In Tegra30
  the clock driver is responsible for configuring the UTMI PLL.
- The USBMODE register must be explicitly written to enter host mode.
- Certain PHY parameters need to be programmed for optimal signal
  quality. Support for this will be added in the next patch.

The new tegra_phy_soc_config structure is added to describe the
differences between the SoCs.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-12 13:29:48 -05:00
Tuomas Tynkkynen
f5833a0bde usb: phy: tegra: Fix wrong PHY parameters
Some of the PHY parameters are not set according to the TRMs:

- UTMIP_FS_PREABMLE_J should be set, not cleared
- UTMIP_XCVR_LSBIAS_SEL should be cleared, not set
- UTMIP_PD_CHRG should be set in host mode and cleared in device mode
- UTMIP_XCVR_SETUP is a two-part field; the upper bits were not set
  properly

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-12 13:29:47 -05:00
Sebastian Andrzej Siewior
3bb869c8b3 usb: phy: Add AM335x PHY driver
This driver is a redo of my earlier attempt. It uses parts of the
generic PHY driver and uses the new control driver for the register
the phy needs to power on/off the phy. It also enables easy access for
the wakeup register which is not yet implemented.
The difference between the omap attempt is:
- no static holding variable
- one global visible function which exports a struct with callbacks to
  access the "control" registers.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-09 17:34:15 +03:00
Sebastian Andrzej Siewior
53b6fc28ea usb: phy: phy-generic: export init functions
This patch exports the mostly generic functions so they can be used from
other phy driver instead of duplicating the code.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-09 17:34:02 +03:00
Felipe Balbi
9e5f9c8aa8 Merge branch 'nop-phy-rename' into next
Signed-off-by: Felipe Balbi <balbi@ti.com>

Conflicts:
	drivers/usb/phy/phy-generic.c
2013-08-09 17:31:23 +03:00
Sebastian Andrzej Siewior
3fa4d7344b usb: phy: rename nop_usb_xceiv => usb_phy_gen_xceiv
The "nop" driver isn't a do-nothing-stub but supports a couple functions
like clock on/off or is able to use a voltage regulator. This patch
simply renames the driver to "generic" since it is easy possible to
extend it by a simple function istead of writing a complete driver.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-09 17:26:00 +03:00
Jingoo Han
d07f4a8200 usb: phy: mv-usb: remove incorrect __exit_p annotation
When platform_driver_probe() is not used, bind/unbind via sysfs
is enabled.  Thus, __exit_p annotation should be removed from
remove().

Also, mv_otg_remove() is staticized, because this function is
used only in this file. Fix the following sparse warning:

drivers/usb/phy/phy-mv-usb.c:656:5: warning: symbol 'mv_otg_remove' was not declared. Should it be static?

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-09 16:34:23 +03:00
Jingoo Han
1e0f20bea2 usb: phy: mv-u3d: Staticize mv_u3d_phy_shutdown()
mv_u3d_phy_shutdown() is used only in this file.
Fix the following sparse warning:

drivers/usb/phy/phy-mv-u3d-usb.c:85:6: warning: symbol 'mv_u3d_phy_shutdown' was not declared. Should it be static?

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-09 16:34:21 +03:00
Jingoo Han
19f9e188de usb: phy: use dev_get_platdata()
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-30 11:18:53 +03:00
Greg Kroah-Hartman
78283dd29e Merge 3.11-rc3 into usb-next 2013-07-29 07:43:16 -07:00
Tuomas Tynkkynen
a554aea67a usb: phy: tegra: Use switch instead of if-else
Use switch() instead of if-else when checking for the PHY type.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-29 15:19:19 +03:00
Tuomas Tynkkynen
6558d7edbe usb: phy: tegra: Use DT helpers for dr_mode
Use the new of_usb_get_dr_mode helper function for parsing dr_mode
from the device tree. Also replace the usage of the custom
tegra_usb_phy_mode enum with the standard enum.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-29 13:58:27 +03:00
Tuomas Tynkkynen
9fdb07f720 usb: phy: tegra: Use DT helpers for phy_type
Use the new of_usb_get_phy_mode helper function for parsing phy_type
from the device tree.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-29 13:58:26 +03:00
Tuomas Tynkkynen
3b102e8bc0 usb: phy: tegra: Remove custom PHY locating APIs
The Tegra EHCI driver is no longer using these custom functions, so they
can be removed.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-29 13:58:25 +03:00
Tuomas Tynkkynen
0ee5b4ab79 usb: phy: tegra: Register as an USB PHY.
Register the Tegra PHY device instances with the PHY subsystem so that
the Tegra EHCI driver can locate a PHY via the standard APIs.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-29 13:58:24 +03:00
Tuomas Tynkkynen
185d0fd570 usb: phy: tegra: Remove unnecessary 'dev' field
struct usb_phy already has a field for the device pointer, so this
unnecessary field can be removed.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-29 13:58:21 +03:00
Mikko Perttunen
f5b8c8b6d3 usb: tegra: Use regulators instead of GPIOs for USB PHY VBUS
The tegra ehci driver has enabled USB vbus regulators directly using
GPIOs and the device tree attribute nvidia,vbus-gpio. This is ugly
and causes error messages on boot when both the regulator driver
and the ehci driver want access to the same GPIO.

After this patch, usb vbus regulators for tegra usb phy devices are specified
with the device tree attribute vbus-supply = <&x> where x is a regulator defined
in the device tree. The old nvidia,vbus-gpio property is no longer supported.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-29 13:58:18 +03:00
Mikko Perttunen
81d5dfe6d8 usb: phy: tegra: Read UTMIP parameters from device tree
UTMIP parameters used to be hardcoded into tables in the
PHY driver. This patch reads them from the device tree instead
in accordance with the phy-tegra-usb DT documentation.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-29 13:58:17 +03:00
Wolfram Sang
fda7130354 usb: phy: 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>
2013-07-29 13:58:14 +03:00
Roger Quadros
519c6013d3 usb: phy: omap-usb3: Improve DPLL parameter lookup code
Use a mapping table (dpll_map) to match the possible system clock rates
to the appropriate DPLL parameters.

Introduce a function "omap_usb3_get_dpll_params()" that will
return the matching DPLL parameters for the given clock rate.

Also, bail out on phy init if DPLL locking fails.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-29 13:58:09 +03:00
Roger Quadros
052a11d13b usb: phy: make PHY driver selection possible by controller drivers
Convert PHY Drivers from menuconfig to menu so that the PHY drivers
can be explicitely selected by the controller drivers.

USB_PHY is no longer a user visible option. It is upto to the PHY
drivers to select it if needed. This patch does so for the existing
PHY drivers that use the USB_PHY library.

Doing so moves the USB_PHY and PHY driver selection problem from the
end user to the PHY and controller driver developer.

e.g.

Earlier, a controller driver (e.g. EHCI_OMAP) that needs to select
a PHY driver (e.g. NOP_PHY) couldn't do so because the PHY driver
depended on USB_PHY. Making the controller driver depend on USB_PHY
has a negative effect i.e. it becomes invisible to the user till
USB_PHY is enabled. Most end users will not familiar with this.

With this patch, the end user just needs to select the controller driver
needed for his/her platform without worrying about which PHY driver to
select.

Also update USB_EHCI_MSM, USB_LPC32XX and USB_OMAP to not depend
on USB_PHY any more. They can safely select the necessary PHY drivers.

[ balbi@ti.com : refreshed on top of my next branch. Changed bool
	followed by default n into def_bool n ]

CC: Pavankumar Kondeti <pkondeti@codeaurora.org>
Acked-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-29 13:57:05 +03:00
Fabio Estevam
51e563e3c1 usb: phy: phy-mxs-usb: Check the return value from stmp_reset_block()
stmp_reset_block() may fail, so let's check its return value and propagate it
in the case of error.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-29 13:56:50 +03:00
Paul Gortmaker
4e682bbd32 usb: limit OMAP related USB options to OMAP2PLUS platforms
commit 57f6ce072e ("usb: phy:
add a new driver for usb3 phy") added the new Kconfig option
OMAP_USB3, but it had no dependencies whatsoever, and hence
became available across all arch/platforms.

Which presumably caused this to show up in x86 randconfig:

    warning: (USB_MUSB_HDRC && OMAP_USB3) selects \
        OMAP_CONTROL_USB which has unmet direct \
        dependencies (USB_SUPPORT && ARCH_OMAP2PLUS)

Then commit 6992819feb ("usb: phy:
fix Kconfig warning") was added.  However, this just deleted the
ARCH_OMAP2PLUS dependency from OMAP_CONTROL_USB, further
compounding the problem by opening up OMAP_CONTROL_USB to
all arch/platforms as well.

Earlier it was suggested[1] that we revert the change of 6992819feb
to restore the dependency, and add a same ARCH_OMAP2PLUS dependency
to the new OMAP_USB3 entry.  However that was discouraged on the
grounds of people wanting the extra sanity compile testing on x86,
even though the driver could probably never be used there.

Now we have CONFIG_COMPILE_TEST, so developers who value the ability
to compile drivers on an architecture that it never can be used for
can have that, and people who want dependencies to shield them from
seeing options that aren't relevant to their platform get what they
want too.

Here we restore the dependency but couple it with COMPILE_TEST, in
order to achieve both of the above goals.

[1] https://patchwork.kernel.org/patch/2194511/

Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Moiz Sonasath <m-sonasath@ti.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-26 13:55:21 -07:00
Greg Kroah-Hartman
8fb822c507 USB: phy: remove CONFIG_USB_DEBUG usage
Now that no USB phy driver is using CONFIG_USB_DEBUG, remove it from the
Makefile.

Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-23 16:34:50 -07:00
Greg Kroah-Hartman
523e531ea6 USB: phy: remove custom DBG macro
Use the in-kernel pr_debug() calls instead of trying to roll your own
DBG macro.  This means the dynamic debugging calls now work here, and
there is no dependency on CONFIG_USB_DEBUG for the phy code anymore.

Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-23 16:33:23 -07:00
Ruchika Kharwar
690c70bab1 usb: phy: omap-usb3: fix dpll clock index
Correction of the omap_usb3_dpll_params array when the sys_clk_rate is
20MHz.

Signed-off-by: Nikhil Devshatwar <nikhil.nd@ti.com>
Signed-off-by: Ruchika Kharwar <ruchika@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-15 13:05:30 +03:00
Sachin Kamat
24e6bfd9d9 usb: phy: samsung: Fix an error message typo
The error message is common to both clk_get functions. Update it
accordingly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-07-15 13:05:29 +03:00
Linus Torvalds
3aa78e0cb5 For the 3.11 merge we only have one new MFD driver for the Kontron PLD.
But we also have:
 
 - Support for the TPS659038 PMIC from the palmas driver.
 
 - Intel's Coleto Creek and Avoton SoCs support from the lpc_ich driver.
 
 - RTL8411B support from the rtsx driver.
 
 - More DT support for the Arizona, max8998, twl4030-power and the
   ti_am335x_tsadc drivers.
 
 - The SSBI driver move under MFD.
 
 - A conversion to the devm_* API for most of the MFD drivers.
 
 - The twl4030-power got split from twl-core into its own module.
 
 - A major ti_am335x_adc cleanup, leading to a proper DT support.
 
 - Our regular arizona and wm* updates and cleanups from the Wolfson
   folks.
 
 - A better error handling and initialization, and a regulator subdevice
   addition for the 88pm80x driver.
 
 - A bulk platform_set_drvdata() call removal that's no longer need since
   commit 0998d063.
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Merge tag 'mfd-3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next

Pull MFD update from Samuel Ortiz:
 "For the 3.11 merge we only have one new MFD driver for the Kontron
  PLD.

  But we also have:
   - Support for the TPS659038 PMIC from the palmas driver.
   - Intel's Coleto Creek and Avoton SoCs support from the lpc_ich
     driver.
   - RTL8411B support from the rtsx driver.
   - More DT support for the Arizona, max8998, twl4030-power and the
     ti_am335x_tsadc drivers.
   - The SSBI driver move under MFD.
   - A conversion to the devm_* API for most of the MFD drivers.
   - The twl4030-power got split from twl-core into its own module.
   - A major ti_am335x_adc cleanup, leading to a proper DT support.
   - Our regular arizona and wm* updates and cleanups from the Wolfson
     folks.
   - A better error handling and initialization, and a regulator
     subdevice addition for the 88pm80x driver.
   - A bulk platform_set_drvdata() call removal that's no longer need
     since commit 0998d06310 ("device-core: Ensure drvdata = NULL when
     no driver is bound")

* tag 'mfd-3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next: (102 commits)
  mfd: sec: Provide max_register to regmap
  mfd: wm8994: Remove duplicate check for active JACKDET
  MAINTAINERS: Add include directory to MFD file patterns
  mfd: sec: Remove fields not used since regmap conversion
  watchdog: Kontron PLD watchdog timer driver
  mfd: max8998: Add support for Device Tree
  regulator: max8998: Use arrays for specifying voltages in platform data
  mfd: max8998: Add irq domain support
  regulator: palmas: Add TPS659038 support
  mfd: Kontron PLD mfd driver
  mfd: palmas: Add TPS659038 PMIC support
  mfd: palmas: Add SMPS10_BOOST feature
  mfd: palmas: Check if irq is valid
  mfd: lpc_ich: iTCO_wdt patch for Intel Coleto Creek DeviceIDs
  mfd: twl-core: Change TWL6025 references to TWL6032
  mfd: davinci_voicecodec: Fix build breakage
  mfd: vexpress: Make the driver optional for arm and arm64
  mfd: htc-egpio: Use devm_ioremap_nocache() instead of ioremap_nocache()
  mfd: davinci_voicecodec: Convert to use devm_* APIs
  mfd: twl4030-power: Fix relocking on error
  ...
2013-07-10 11:10:27 -07:00
Linus Torvalds
42daabf62b ARM SoC late changes
These are changes that arrived a little late before the merge
 window or that have multiple dependencies on previous branches
 so they did not fit into one of the earlier ones. There
 are 10 branches merged here, a total of 39 non-merge commits.
 Contents are a mixed bag for the above reasons:
 
 * Two new SoC platforms: ST microelectronics stixxxx and
   the TI 'Nspire' graphing calculator. These should have
   been in the 'soc' branch but were a little late
 * Support for the Exynos 5420 variant in mach-exynos,
   which is based on the other exynos branches to avoid
   conflicts.
 * Various small changes for sh-mobile, ux500 and davinci
 * Common clk support for MSM
 
 Conflicts:
 * In Kconfig.debug, various additions trivially conflict,
   the list should be kept in alphabetical order when
   resolving.
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Merge tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC late changes from Arnd Bergmann:
 "These are changes that arrived a little late before the merge window
  or that have multiple dependencies on previous branches so they did
  not fit into one of the earlier ones.  There are 10 branches merged
  here, a total of 39 non-merge commits.  Contents are a mixed bag for
  the above reasons:

   * Two new SoC platforms: ST microelectronics stixxxx and the TI
     'Nspire' graphing calculator.  These should have been in the 'soc'
     branch but were a little late
   * Support for the Exynos 5420 variant in mach-exynos, which is based
     on the other exynos branches to avoid conflicts.
   * Various small changes for sh-mobile, ux500 and davinci
   * Common clk support for MSM"

* tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits)
  ARM: ux500: bail out on alien cpus
  ARM: davinci: da850: adopt to pinctrl-single change for configuring multiple pins
  serial: sh-sci: Initialise variables before access in sci_set_termios()
  ARM: stih41x: Add B2020 board support
  ARM: stih41x: Add B2000 board support
  ARM: sti: Add DEBUG_LL console support
  ARM: sti: Add STiH416 SOC support
  ARM: sti: Add STiH415 SOC support
  ARM: msm: Migrate to common clock framework
  ARM: msm: Make proc_comm clock control into a platform driver
  ARM: msm: Prepare clk_get() users in mach-msm for clock-pcom driver
  ARM: msm: Remove clock-7x30.h include file
  ARM: msm: Remove custom clk_set_{max,min}_rate() API
  ARM: msm: Remove custom clk_set_flags() API
  msm: iommu: Use clk_set_rate() instead of clk_set_min_rate()
  msm: iommu: Convert to clk_prepare/unprepare
  msm_sdcc: Convert to clk_prepare/unprepare
  usb: otg: msm: Convert to clk_prepare/unprepare
  msm_serial: Use devm_clk_get() and properly return errors
  msm_serial: Convert to clk_prepare/unprepare
  ...
2013-07-02 14:42:51 -07:00
Linus Torvalds
3883cbb6c1 ARM SoC specific changes
These changes are all to SoC-specific code, a total of 33 branches on
 17 platforms were pulled into this. Like last time, Renesas sh-mobile
 is now the platform with the most changes, followed by OMAP and EXYNOS.
 
 Two new platforms, TI Keystone and Rockchips RK3xxx are added in
 this branch, both containing almost no platform specific code at all,
 since they are using generic subsystem interfaces for clocks, pinctrl,
 interrupts etc. The device drivers are getting merged through the
 respective subsystem maintainer trees.
 
 One more SoC (u300) is now multiplatform capable and several others
 (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
 towards that goal with this series but need more work.
 
 Also noteworthy is the work on PCI here, which is traditionally part of
 the SoC specific code. With the changes done by Thomas Petazzoni, we can
 now more easily have PCI host controller drivers as loadable modules and
 keep them separate from the platform code in drivers/pci/host. This has
 already led to the discovery that three platforms (exynos, spear and imx)
 are actually using an identical PCIe host controller and will be able
 to share a driver once support for spear and imx is added.
 
 Conflicts:
 * asm/glue-proc.h has one CPU type getting added that conflicts
   with another addition in 3.10-rc7
 * Simple context changes in arch/arm/Makefile and arch/arm/Kconfig
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Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC specific changes from Arnd Bergmann:
 "These changes are all to SoC-specific code, a total of 33 branches on
  17 platforms were pulled into this.  Like last time, Renesas sh-mobile
  is now the platform with the most changes, followed by OMAP and
  EXYNOS.

  Two new platforms, TI Keystone and Rockchips RK3xxx are added in this
  branch, both containing almost no platform specific code at all, since
  they are using generic subsystem interfaces for clocks, pinctrl,
  interrupts etc.  The device drivers are getting merged through the
  respective subsystem maintainer trees.

  One more SoC (u300) is now multiplatform capable and several others
  (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
  towards that goal with this series but need more work.

  Also noteworthy is the work on PCI here, which is traditionally part
  of the SoC specific code.  With the changes done by Thomas Petazzoni,
  we can now more easily have PCI host controller drivers as loadable
  modules and keep them separate from the platform code in
  drivers/pci/host.  This has already led to the discovery that three
  platforms (exynos, spear and imx) are actually using an identical PCIe
  host controller and will be able to share a driver once support for
  spear and imx is added."

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (480 commits)
  ARM: integrator: let pciv3 use mem/premem from device tree
  ARM: integrator: set local side PCI addresses right
  ARM: dts: Add pcie controller node for exynos5440-ssdk5440
  ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC
  ARM: EXYNOS: Enable PCIe support for Exynos5440
  pci: Add PCIe driver for Samsung Exynos
  ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data
  ARM: keystone: Move CPU bringup code to dedicated asm file
  ARM: multiplatform: always pick one CPU type
  ARM: imx: select syscon for IMX6SL
  ARM: keystone: select ARM_ERRATA_798181 only for SMP
  ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1
  ARM: OMAP2+: AM43x: resolve SMP related build error
  dmaengine: edma: enable build for AM33XX
  ARM: edma: Add EDMA crossbar event mux support
  ARM: edma: Add DT and runtime PM support to the private EDMA API
  dmaengine: edma: Add TI EDMA device tree binding
  arm: add basic support for Rockchip RK3066a boards
  arm: add debug uarts for rockchip rk29xx and rk3xxx series
  arm: Add basic clocks for Rockchip rk3066a SoCs
  ...
2013-07-02 13:43:38 -07:00
Olof Johansson
8c3d913888 MSM clock updates for 3.11.
Per Stephen Boyd's coverletter:
 
 Resending to collect higher level maintainer acks per Olof's request.
 The plan is to push this patchset through MSM to the arm-soc tree.
 
 This patchset moves the existing MSM clock code and affected drivers
 to the common clock framework. A prerequisite of moving to the common
 clock framework is to use clk_prepare() and clk_enable() so the first
 few patches migrate drivers to that call (clk_prepare() is a no-op on
 MSM right now). It also removes some custom clock APIs that MSM
 provides and finally moves the proc_comm clock code to the common
 struct clk.
 
 This patch series will be used as the foundation of the MSM 8660/8960
 clock code that I plan to send out after this series.
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Merge tag 'msm-clock-for-3.11b' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into next/late

From David Brown:
MSM clock updates for 3.11.

Per Stephen Boyd's coverletter:

Resending to collect higher level maintainer acks per Olof's request.
The plan is to push this patchset through MSM to the arm-soc tree.

This patchset moves the existing MSM clock code and affected drivers
to the common clock framework. A prerequisite of moving to the common
clock framework is to use clk_prepare() and clk_enable() so the first
few patches migrate drivers to that call (clk_prepare() is a no-op on
MSM right now). It also removes some custom clock APIs that MSM
provides and finally moves the proc_comm clock code to the common
struct clk.

This patch series will be used as the foundation of the MSM 8660/8960
clock code that I plan to send out after this series.

* tag 'msm-clock-for-3.11b' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm:
  ARM: msm: Migrate to common clock framework
  ARM: msm: Make proc_comm clock control into a platform driver
  ARM: msm: Prepare clk_get() users in mach-msm for clock-pcom driver
  ARM: msm: Remove clock-7x30.h include file
  ARM: msm: Remove custom clk_set_{max,min}_rate() API
  ARM: msm: Remove custom clk_set_flags() API
  msm: iommu: Use clk_set_rate() instead of clk_set_min_rate()
  msm: iommu: Convert to clk_prepare/unprepare
  msm_sdcc: Convert to clk_prepare/unprepare
  usb: otg: msm: Convert to clk_prepare/unprepare
  msm_serial: Use devm_clk_get() and properly return errors
  msm_serial: Convert to clk_prepare/unprepare

Acked-by: Chris Ball <cjb@laptop.org> # for msm_sdcc.c
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-27 17:04:27 -07:00
Wei Yongjun
38dcdb3a7d usb: phy: tegra: remove duplicated include from phy-tegra-usb.c
Remove duplicated include.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-24 16:15:27 -07:00
Greg Kroah-Hartman
f797d37ead Merge 3.10-rc7 into usb-next
We want the USB fixes and other good stuff in this branch as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-24 15:20:26 -07:00
Stephen Boyd
b99a8f621f usb: otg: msm: Convert to clk_prepare/unprepare
Add calls to clk_prepare and unprepare so that MSM can migrate to
the common clock framework.

Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2013-06-24 13:06:42 -07:00
Graeme Gregory
89ce43fbbc mfd: twl-core: Change TWL6025 references to TWL6032
The TWL6025 was never released beyond sample form and was replaced by
the PhoenixLite range of chips - TWL6032. Change the references to
reference the TWL6032 class and name the registers to twl6032 in line with
an actual released chip name to avoid confusion.

Currently there are no users of TWL6025 in the code.

Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Oleksandr Kozaruk <oleksandr.kozaruk@ti.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Reviwed-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-20 10:26:29 +02:00
George Spelvin
035978beaf usb: phy: Improve Kconfig help for CONFIG_USB_PHY
The previous text confused users by not describing the very common
(e.g. x86 PC) sitations where no PHY driver is necessary.

Signed-off-by: George Spelvin <linux@horizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-18 10:39:04 -07:00
Stephen Warren
91a687d8fe USB: EHCI: tegra: fix circular module dependencies
The Tegra EHCI driver directly calls various functions in the Tegra USB
PHY driver. The reverse is also true; the PHY driver calls into the EHCI
driver. This is problematic when the two are built as modules.

The calls from the PHY to EHCI driver were originally added in commit
bbdabdb "usb: add APIs to access host registers from Tegra PHY", for the
following reasons:

1) The register being touched is an EHCI register, so logically only the
   EHCI driver should touch it.
2) (1) implies that some locking may be needed to correctly implement the
   r/m/w access to this shared register.
3) We were expecting to pass only the PHY register space to the Tegra PHY
   driver, and hence it would not have access to touch the shared
   registers.

To solve this, that commit added functions in the EHCI driver to touch the
shared register on behalf of the PHY driver.

In practice, we ended up not having any locking in the implementaiton of
those functions, and I've been led to believe this is safe. Equally, (3)
did not happen either. Hence, it is possible for the PHY driver to touch
the shared register directly.

Given that, this patch moves the code to touch the shared register back
into the PHY driver, to eliminate the module problems. If we actually
need locking or co-ordination in the future, I propose we put the lock
support into some pre-existing core module, or into a third separate
module, in order to avoid the circular dependencies.

I apologize for my contribution to code churn here.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 13:54:48 -07:00
Stephen Warren
587376a15a usb: phy: add MODULE_LICENSE to phy-tegra-usb.c
When this file is built as a module, it needs a MODULE_LICENSE in order
to access many exported symbols.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 13:54:47 -07:00
Manjunath Goudar
9a0e5110f7 usb: phy: export ulpi_viewport_access_ops
In order to build a ULPI PHY driver as a module, this symbol needs to
be exported.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
[swarren, reworked Manjunath's patches to split them more logically]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 13:54:47 -07:00
Michael Grzeschik
1c9af65357 usb: add devicetree helpers for determining dr_mode and phy_type
This adds two little devicetree helper functions for determining the
dr_mode (host, peripheral, otg) and phy_type (utmi, ulpi,...) from
the devicetree.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 13:47:09 -07:00
Tushar Behera
56a9a6de2a usb: phy: rcar-usb: Fix comment w.r.t. devm_ioremap_resource
Commit 75096579c3 ("lib: devres: Introduce devm_ioremap_resource()")
introduced devm_ioremap_resource() and deprecated the use of
devm_request_and_ioremap().

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
CC: linux-usb@vger.kernel.org
CC: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 13:37:07 -07:00
Olof Johansson
a114926964 Renesas USB updates for v3.11
These updates are by Sergei Shtylyov to clean-up USB support
 present for R8A7779/Marzen and then extend USB support coverage to
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Merge tag 'renesas-phy-rcar-usb-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc

From Simon Horman:
Renesas USB updates for v3.11

These updates are by Sergei Shtylyov to clean-up USB support
present for R8A7779/Marzen and then extend USB support coverage to
R8A7778/BOCK-W.

* tag 'renesas-phy-rcar-usb-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: BOCK-W: add USB support
  ARM: shmobile: r8a7778: add USB support
  phy-rcar-usb: add R8A7778 support
  phy-rcar-usb: handle platform data
  ARM: shmobile: Marzen: pass platform data to USB PHY device
  phy-rcar-usb: add platform data
  phy-rcar-usb: correct base address
  ARM: shmobile: r8a7779: remove USB PHY 2nd memory resource
  phy-rcar-usb: remove EHCI internal buffer setup
  ARM: shmobile: r8a7779: setup EHCI internal buffer
  ehci-platform: add pre_setup() method to platform data
  ARM: shmobile: Marzen: move USB EHCI, OHCI, and PHY devices to R8A7779 code

Conflicts:
	arch/arm/mach-shmobile/board-marzen.c
	arch/arm/mach-shmobile/setup-r8a7778.c

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-14 17:36:30 -07:00
Sergei Shtylyov
54407f190c phy-rcar-usb: add R8A7778 support
The driver currently only supports R8A7779 SoC. Compared to it, R8A7778 USB-PHY
has extra register range containing two high-speed signal quality characteristic
control registers which should be set up  during USB-PHY  startup depending on
whether a ferrite bead is in use or not.  So, we now handle an optional second
memory range in the driver's probe method, add the 'ferrite_bead' field to the
driver's platform data, and add an extra (optional) step to the USB-PHY startup
routine which sets up the extended registers.

Also mark in the driver's Kconfig section  that R8A7778 is now supported and
generally clarify that section, uppercasing the word "phy" and also changing
the module name that got lost in the big driver rename, while at it...

The patch has been tested on the Marzen and BOCK-W boards.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-11 16:11:16 +09:00
Sergei Shtylyov
7173e59e6b phy-rcar-usb: handle platform data
Set the USBPCTRL0 register from the passed platform data in rcar_usb_phy_init();
don't reset it to 0 in  rcar_usb_phy_shutdown()  anymore as that does not make
sense.  Also, don't allow the driver's probe to succeed when the platform data
are not supplied with a device.

The patch has been tested on the Marzen and BOCK-W boards.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-11 16:10:49 +09:00
Sergei Shtylyov
725bf9dcaf phy-rcar-usb: correct base address
The memory region that is used by the driver overlaps EHCI and OHCI  register
regions for absolutely no reason now  -- fix it  by adding offset of 0x800 to
the base address, changing the register #define's accordingly. This has extra
positive effect that we now can use devm_ioremap_resource()...

Note that the driver and the SoC code have to be in one patch to keep the code
bisectable...

The patch has been tested on the Marzen board.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-11 16:10:47 +09:00
Sergei Shtylyov
463c824bb7 phy-rcar-usb: remove EHCI internal buffer setup
Now that the EHCI internal  buffer setup is done by the platform code,  we  can
remove  such code from this driver as it  never  really belonged here.  We also
no longer need the 2nd memory region now (2nd EHCI controller is simply missing
in e.g. R8A7778 SoC).

The patch has been tested on the Marzen and BOCK-W boards.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-11 16:10:46 +09:00
Ruchika Kharwar
81fbf101f2 usb: phy: omap-usb3: updated dpll M,N values to support DRA7xx devices
Addition of the M and N recommended values for the USB3 PHY DPLL.
Sysclk for DRA7xx is 20MHz.

This yields:
Clk = 20MHz * M/(N+1) = 20MHz * 1000 /(7+1) = 2.5 Ghz

Signed-off-by: Ruchika Kharwar <ruchika@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-06-01 00:22:49 +03:00
Venu Byravarasu
2d22b42db0 usb: phy: registering Tegra USB PHY as platform driver
Registered Tegra USB PHY as a separate platform driver.

To synchronize host controller and PHY initialization, used deferred
probe mechanism. As PHY should be initialized before EHCI starts running,
deferred probe of Tegra EHCI driver till PHY probe gets completed.

Got rid of instance number based handling in host driver.

Made use of DT params to get the PHY Pad registers.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-30 02:49:11 +03:00
Venu Byravarasu
6829f92f6e usb: phy: tegra: Add error handling & clean up.
Check return values from all GPIO APIs and handle errors accordingly.

Remove the call to clk_disable_unprepare(); this function does not
prepare or enable the clock, so the error path should not disable or
unprepare it.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-30 02:47:32 +03:00
Venu Byravarasu
12ea18e4f0 usb: phy: tegra: get ULPI reset GPIO info using DT.
As GPIO information is avail through DT, used it to get Tegra ULPI
reset GPIO number. Added a new member to tegra_usb_phy structure to
store this number.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-30 02:47:19 +03:00
Venu Byravarasu
9cd9384c73 usb: phy: tegra: Get PHY mode using DT
Added a new PHY mode to support OTG.
Obtained Tegra USB PHY mode using DT property.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-30 02:46:46 +03:00
Venu Byravarasu
9e69fae1a8 usb: phy: tegra: Return correct error value provided by clk_get_sys
In case if clk_get_sys fails, return correct error value provided by
the API.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-30 02:45:44 +03:00
Dongjin Kim
6d3d61f821 usb: phy: samsung: Add support HSIC on Exynos4X12
This patch adds to enable High Speed Inter Chip on Exynos4X12. Both channels
are controlled by usbphy driver based on the patch series of usbphy driver
submitted by Tomasz Figa.

[1] https://patchwork.kernel.org/patch/2576121
[2] https://patchwork.kernel.org/patch/2576131
[3] https://patchwork.kernel.org/patch/2576141
[4] https://patchwork.kernel.org/patch/2576151
[5] https://patchwork.kernel.org/patch/2576161
[6] https://patchwork.kernel.org/patch/2576171

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 20:16:37 +03:00
Sachin Kamat
7a22cc9709 usb: phy: phy-nop: Remove redundant use of of_match_ptr
'nop_xceiv_dt_ids' is always compiled in. Hence use of
of_match_ptr is unnecessary.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 20:14:39 +03:00
Tomasz Figa
1b635f0ff3 usb: phy: samsung: Add support for USB 2.0 PHY on Exynos 4x12
This patch adds driver data for Exynos 4x12 USB 2.0 PHY.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 20:07:31 +03:00
Tomasz Figa
84035f09ad usb: phy: samsung: Pass enable/disable callbacks through driver data
To remove unnecessary if statements, this patch introduces phy_enable
and phy_disable callbacks in driver data structure that implement
SoC-specific PHY initialization and deinitialization.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 20:07:15 +03:00
Tomasz Figa
3f339074ed usb: phy: samsung: Pass set_isolation callback through driver data
This patch extends driver data structure with set_isolation callback,
which allows to remove the need for checking for SoC type in a switch
statement.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 20:06:49 +03:00
Tomasz Figa
0aa823a2ca usb: phy: samsung: Consolidate reference clock rate handling
This patch cleans up handling of reference clock rate in Samsung USB PHY
drivers. It is mostly a cosmetic change but improves error handling in
case of failing to get reference clock or invalid clock rate.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 20:06:39 +03:00
Tomasz Figa
87331b0697 usb: phy: samsung: Use clk_get to get reference clock
There is no need to use devm_clk_get to get a clock that is being put
at the end of the function.

This patch changes the code getting reference clock to use clk_get
instead of useless in this case devm_clk_get.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 20:06:30 +03:00
Tomasz Figa
6278703bcc usb: phy: samsung: Select common driver part implicitly
Since phy-samsung-usb library can be used only by phy-samsung-usb2 and
phy-samsung-usb3 drivers, there is no need to give explicit control over
its Kconfig symbol.

This patch makes CONFIG_SAMSUNG_USBPHY symbol hidden and selected
implicitly by CONFIG_SAMSUNG_USB2PHY and CONFIG_SAMSUNG_USB3PHY.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 20:06:19 +03:00
Fabio Baltieri
f85bff5d1e usb: phy: ab8500-usb: add ab9540 support
Add support for the ab9540 variant of the ab8500 family.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Cc: Avinash Kumar <avinash.kumar@stericsson.com>
Cc: Thirupathi Chippakurthy <thirupathi.chippakurthy@stericsson.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 20:03:55 +03:00
Fabio Baltieri
0c380c0ee0 usb: phy: ab8500-usb: add ab8540 support
Add support for the ab8540 variant of the ab8500 family.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Cc: Avinash Kumar <avinash.kumar@stericsson.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-05-28 20:03:45 +03:00