Commit Graph

68 Commits

Author SHA1 Message Date
Maxime Ripard
eadd431239 phy: usb: sunxi: Introduce Allwinner A31 USB PHY support
The USB phy controller in the A31 differs mostly from the older controllers
because it has a clock dedicated for each phy, while the older ones were having
a single clock for all the phys.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-14 19:41:13 +05:30
Maxime Ripard
2a7f9982d6 phy: sunxi: Rework phy initialization
Move the phy initialization and variables declaration to the loop itself, since
it is where it really belongs. Also remove all the temporary variables, we can
use the structure members directly.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-14 19:41:13 +05:30
Vivek Gautam
4fc8a4e65f phy: exynos5-usbdrd: Add facility for VBUS supply
Adding support to enable/disable VBUS controlled by a
regulator, to enable vbus supply on the port.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-13 18:07:08 +05:30
Vivek Gautam
59025887fb phy: Add new Exynos5 USB 3.0 PHY driver
Add a new driver for the USB 3.0 PHY on Exynos5 series of SoCs.
The new driver uses the generic PHY framework and will interact
with DWC3 controller present on Exynos5 series of SoCs.

Also, created a new header file in linux/mfd/syscon/ for
Exynos5 SoCs and put the required PMU offset definitions
for the basic available PHYs.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-13 18:07:08 +05:30
Arnd Bergmann
3fc03f3d72 phy: kona2: use 'select GENERIC_PHY' in Kconfig
All other phy drivers use 'select', while this one is
the only one to use 'depends on'. This is not a bug, just
slightly inconsistent, so let's change it to do things the
same way as everyone else.

We may also want to turn GENERIC_PHY into a silent option
that only ever gets turned on if another driver needs it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Matt Porter <mporter@linaro.org>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-12 19:02:02 +05:30
Antoine Ténart
98c3b32229 phy: exynos-mipi-video: fix check on array index
The phys array is of size EXYNOS_MIPI_PHYS_NUM. Trying to access the
index EXYNOS_MIPI_PHYS_NUM should return an error.

Fixes: 069d2e26e9 "phy: Add driver for Exynos MIPI CSIS/DSIM DPHYs"

Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-12 19:02:02 +05:30
Arnd Bergmann
fe04e4297e PHY: Exynos: fix SATA phy license typo
If the license string doesn't match exactly, the module refuses to load.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-08 19:24:35 +05:30
Roger Quadros
9f1d8ed227 phy: omap-usb2: Use generic clock names "wkupclk" and "refclk"
As clocks might be named differently on multiple platforms, use a generic
name in the driver and allow device tree node to specify the platform
specific clock name.

Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-08 19:22:16 +05:30
Sergei Shtylyov
743bb387a1 phy: fix kernel oops in phy_lookup()
The kernel oopses in phy_lookup() due to 'phy->init_data' being NULL if we
register PHYs from a device tree probing driver and then call phy_get() on a
device that has no representation in the device tree (e.g. a PCI device).
Checking the pointer before dereferening it and skipping an interation if
it's NULL prevents this kernel oops.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 12:53:38 -07:00
Jean Delvare
907aa3aa8d phy: restore OMAP_CONTROL_PHY dependencies
When OMAP_CONTROL_USB was renamed to OMAP_CONTROL_PHY (commit
14da699b), its dependencies were lost in the process. Nothing in the
commit message indicates that this removal was intentional, so I think
it was by accident and the dependencies should be restored.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Roger Quadros <rogerq@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 12:53:38 -07:00
Arnd Bergmann
d1481832f1 phy: exynos: fix building as a module
The top-level phy-samsung-usb2 driver may be configured as a
loadable module, which currently causes link errors because
of the dependency on the exynos{5250,4x12,4210}_usb2_phy_config
symbol. Solving this could be achieved by exporting these
symbols, but as the SoC-specific parts of the driver are not
currently built as modules, it seems better to just link
everything into one module and avoid the need for the export.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 12:53:38 -07:00
Linus Torvalds
cbda94e039 ARM: SoC: driver changes
These changes are mostly for ARM specific device drivers that either
 don't have an upstream maintainer, or that had the maintainer ask
 us to pick up the changes to avoid conflicts. A large chunk of this
 are clock drivers (bcm281xx, exynos, versatile, shmobile), aside from
 that, reset controllers for STi as well as a large rework of the
 Marvell Orion/EBU watchdog driver are notable.
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Merge tag 'drivers-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver changes from Arnd Bergmann:
 "These changes are mostly for ARM specific device drivers that either
  don't have an upstream maintainer, or that had the maintainer ask us
  to pick up the changes to avoid conflicts.

  A large chunk of this are clock drivers (bcm281xx, exynos, versatile,
  shmobile), aside from that, reset controllers for STi as well as a
  large rework of the Marvell Orion/EBU watchdog driver are notable"

* tag 'drivers-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (99 commits)
  Revert "dts: socfpga: Add DTS entry for adding the stmmac glue layer for stmmac."
  Revert "net: stmmac: Add SOCFPGA glue driver"
  ARM: shmobile: r8a7791: Fix SCIFA3-5 clocks
  ARM: STi: Add reset controller support to mach-sti Kconfig
  drivers: reset: stih416: add softreset controller
  drivers: reset: stih415: add softreset controller
  drivers: reset: Reset controller driver for STiH416
  drivers: reset: Reset controller driver for STiH415
  drivers: reset: STi SoC system configuration reset controller support
  dts: socfpga: Add sysmgr node so the gmac can use to reference
  dts: socfpga: Add support for SD/MMC on the SOCFPGA platform
  reset: Add optional resets and stubs
  ARM: shmobile: r7s72100: fix bus clock calculation
  Power: Reset: Generalize qnap-poweroff to work on Synology devices.
  dts: socfpga: Update clock entry to support multiple parents
  ARM: socfpga: Update socfpga_defconfig
  dts: socfpga: Add DTS entry for adding the stmmac glue layer for stmmac.
  net: stmmac: Add SOCFPGA glue driver
  watchdog: orion_wdt: Use %pa to print 'phys_addr_t'
  drivers: cci: Export CCI PMU revision
  ...
2014-04-05 15:37:40 -07:00
Arnd Bergmann
cda88c8be5 mvebu driver changes for v3.15 (incremental pull #2)
- reset
     - re-use qnap-poweroff driver for Synology NASs
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Merge tag 'mvebu-drivers-3.15-2' of git://git.infradead.org/linux-mvebu into next/drivers

Merge "mvebu drivers for v3.15" from Jason Cooper:

pull request #1:

 - mvebu mbus
    - use of_find_matching_node_and_match

 - rtc
    - use PTR_ERR_OR_ZERO in isl12057
    - work around issue in mv where date returned is 2038

 - kirkwood -> mach-mvebu
    - various Kconfig oneliners to allow building kirkwood in -mvebu/

pull request #2:

 - reset
    - re-use qnap-poweroff driver for Synology NASs

* tag 'mvebu-drivers-3.15-2' of git://git.infradead.org/linux-mvebu:
  Power: Reset: Generalize qnap-poweroff to work on Synology devices.
  drivers: Enable building of Kirkwood drivers for mach-mvebu
  rtc: mv: reset date if after year 2038
  rtc: isl12057: use PTR_ERR_OR_ZERO to fix coccinelle warnings
  bus: mvebu-mbus: make use of of_find_matching_node_and_match

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-03-17 11:14:34 +01:00
Loc Ho
88e670fe9d PHY: add APM X-Gene SoC 15Gbps Multi-purpose PHY driver
This patch adds support for the APM X-Gene SoC 15Gbps Multi-purpose PHY.
This is the physical layer interface for the corresponding host
controller. Currently, only external clock and Gen3 SATA mode
are supported.

Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Tuan Phan <tphan@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09 12:45:13 +05:30
Roger Quadros
02133b9e54 phy: omap: Depend on OMAP_OCP2SCP bus driver
The OMAP_USB2 and OMAP_PIPE3 PHY devices will not be
detected if the OMAP_OCP2SCP bus driver is not present.
Make them depend on it.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09 12:45:12 +05:30
Roger Quadros
56042e4e97 phy: ti-pipe3: Fix suspend/resume and module reload
Due to Errata i783, SATA breaks if its DPLL is idled. The recommeded
workaround to issue a softreset to the SATA controller doesn't seem to
work. Here we just prevent SATA DPLL from Idling and hence avoid
the issue altogether.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09 12:45:11 +05:30
Roger Quadros
629138dbae phy: ti-pipe3: streamline PHY operations
Limit .power_on() and .power_off() to just control the
PHY power and not the DPLL. The DPLL will be enabled
in .init() and idled in .exit().

Don't reprogram the DPLL if it has been already locked
by the bootloader. This fixes a problem with SATA, where
it fails if SATA was used by the bootloader.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09 12:45:11 +05:30
Roger Quadros
9c7f044360 phy: ti-pipe3: Don't get 'wkupclk' and 'refclk' for SATA PHY
SATA PHY doesn't need 'wkupclk; and 'refclk' so don't
try to get them for SATA PHY.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09 12:45:10 +05:30
Roger Quadros
61f5467477 phy: ti-pipe3: Add SATA DPLL support
USB and SATA DPLLs need different settings. Provide
the SATA DPLL settings and use the proper DPLL settings
based on device tree node's compatible_id.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09 12:45:10 +05:30
Roger Quadros
1562864f0f phy: ti-pipe3: cleanup clock handling
As this driver is no longer USB specific, use generic clock names.
- Fix PLL_SD_SHIFT from 9 to 10
- Don't separate prepare/unprepare clock from enable/disable. This
  ensures optimal power savings.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09 12:45:09 +05:30
Roger Quadros
51c9f4adae phy: omap-control: update dra7 and am437 usb2 bindings
The dra7-usb2 and am437-usb2 bindings have not yet been used.
Change them to be more elegant.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09 12:45:09 +05:30
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
George Cherian
db68e80f08 phy: omap-usb2: Add different compatible for OMAP5
Add a new compatible for OMAP5 since it does not use any of the
OTG operations as of now.
HAS_SRP and SET_VBUS functionalities are used only for OMAP4.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09 12:45:08 +05:30
Austin Beam
7e472402ca phy: omap-usb2: Provide workaround for USB2PHY false disconnect
Enable the dra7x errata workaround for false disconnect problem
with USB2PHY. False disconnects were detected with some of the devices.
Reduce the sensitivity of the disconnect logic within the USB2PHY subsystem
to enusre these false disconnects are not registered.

[george.cherian@ti.com]
While at that, pass proper flags for each SoC's. This is a common driver
used across OMAP4,OMAP5,DRA7xx and AM437x USB2PHY.

False disconnect workaround is currently applicable for only DRA7x.

Signed-off-by: Austin Beam <austinbeam@ti.com>
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09 12:45:07 +05:30
George Cherian
09a0168de1 phy: omap-usb2: Adapt phy-omap-usb2 for AM437x
Adapt phy-omap-usb2 driver for AM437x.
	- Add new comaptible "ti,am437x-usb2" for AM437x
	- Pass proper data to differentiate AM437x and others.
	- AM437x doesnot support  set_vbus and start_srp.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09 12:45:07 +05:30
Kamil Debski
64bf2b2369 phy: Add Exynos 5250 support to the Exynos USB 2.0 PHY driver
Add support for Exynos 5250. This driver is to replace the old
USB 2.0 PHY driver.

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-08 12:39:44 +05:30
Kamil Debski
06fb01373c phy: Add new Exynos USB 2.0 PHY driver
Add a new driver for the Exynos USB 2.0 PHY. The new driver uses the generic
PHY framework. The driver includes support for the Exynos 4x10 and 4x12
SoC families.

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-08 12:39:44 +05:30
Kamil Debski
b5d682f4eb phy: core: Add devm_of_phy_get to phy-core
Adding devm_of_phy_get will allow to get phys by supplying a
pointer to the struct device_node instead of struct device.

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-08 12:39:43 +05:30
Kamil Debski
0b3f3b2c77 phy: core: Add an exported of_phy_get function
Previously the of_phy_get function took a struct device * and
was declared static. It was impossible to call it from
another driver and thus it was impossible to get phy defined
for a given node. The old function was renamed to _of_phy_get
and was left for internal use. of_phy_get function was added
and it was exported. The function enables to get a phy for
a given device tree node.

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-08 12:39:42 +05:30
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
Kishon Vijay Abraham I
8cf7651f70 usb: phy: omap-usb2: remove *set_suspend* callback from omap-usb2
Now that omap-usb2 is adapted to the new generic PHY framework,
*set_suspend* ops can be removed from omap-usb2 driver.

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>
2014-03-06 14:49:33 +05:30
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
Sebastian Hesselbarth
06c886a95c phy: mvebu-sata: prepare new Dove DT Kconfig variable
DT-enabled Dove will move over from ARCH_DOVE in mach-dove to MACH_DOVE in
mach-mvebu. As non-DT ARCH_DOVE will stay to rot for a while, add a new
DT-only MACH_DOVE Kconfig.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
2014-03-04 11:16:33 +05:30
Hans de Goede
ba4bdc9e1d PHY: sunxi: Add driver for sunxi usb phy
The Allwinner A1x / A2x SoCs have 2 or 3 usb phys which are all accessed
through a single set of registers. Besides this there are also some other
phy related bits which need poking, which are per phy, but shared between the
ohci and ehci controllers, so these are also controlled from this new phy
driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-03 18:50:09 +05:30
Yuvaraj Kumar C D
bcff4cba41 PHY: Exynos: Add Exynos5250 SATA PHY driver
This patch adds the SATA PHY driver for Exynos5250.This driver uses the
generic PHY framework to deal with SATA PHY.Exynos5250 SATA PHY comprises
of CMU and TRSV blocks which are of I2C register Map.So this driver
configures the CMU and TRSV block of exynos5250 SATA PHY using i2c.

Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Signed-off-by: Girish K S <ks.giri@samsung.com>
Signed-off-by: Vasanth Ananthan <vasanth.a@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-03 18:50:09 +05:30
Sylwester Nawrocki
a50ce20eca phy: Select PHY_EXYNOS_DP_VIDEO by default for ARCH_EXYNOS
Instead of requiring user to figure out when PHY_EXYNOS_DP_VIDEO needs
to be selected select it by default for Exynos SoCs. Also enable it
when COMPILE_TEST is selected. If required the display port PHY driver
can be then disabled or compiled in as module.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-02 00:26:26 +05:30
Sylwester Nawrocki
13454e5e08 phy: Select PHY_EXYNOS_MIPI_VIDEO by default for ARCH_EXYNOS
Instead of requiring user to figure out when PHY_EXYNOS_MIPI_VIDEO needs
to be selected select it by default for Exynos SoCs. Also enable it when
COMPILE_TEST is selected. If required the MIPI CSIS/DPHY driver can be
then disabled or compiled in as module.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-02 00:26:26 +05:30
Sachin Kamat
e4b9f782fe usb: phy: bcm-kona-usb2: Use PTR_ERR_OR_ZERO
PTR_ERR_OR_ZERO simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Matt Porter <mporter@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-02 00:26:26 +05:30
Sachin Kamat
ed093e6109 usb: phy: twl4030-usb: Remove redundant semicolon
Semicolon after switch statement is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-02 00:26:26 +05:30
Sachin Kamat
b6d790f793 usb: phy: twl4030-usb: Silence checkpatch warnings
Silences the following warnings:
WARNING: sizeof *twl should be sizeof(*twl)
WARNING: sizeof *otg should be sizeof(*otg)

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-02 00:26:26 +05:30
Andrew Lunn
ff1f0018cf drivers: Enable building of Kirkwood drivers for mach-mvebu
With the move of kirkwood into mach-mvebu, drivers Kconfig need
tweeking to allow the kirkwood specific drivers to be built.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@linaro.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Bryan Wu <cooloney@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-24 17:28:31 +00:00
Kishon Vijay Abraham I
64fe189169 phy: let phy_provider_register be the last step in registering PHY
Registering phy_provider before creating the PHY can result in PHY
callbacks being invoked which will lead to aborts. In order to avoid this
invoke phy_provider_register after phy_create and phy_set_drvdata.

Reported-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:13:16 -08:00
Hans de Goede
b51fbf9fb0 phy-core: Don't allow building phy-core as a module
include/phy/phy.h has stub code in there for when building without the
phy-core enabled. This is useful for generic drivers such as ahci-platform,
ehci-platoform and ohci-platform which have support for driving an optional
phy passed to them through the devicetree.

Since on some boards this phy functionality is not needed, being able to
disable the phy subsystem without needing a lot of #ifdef magic in the
driver using it is quite useful.

However this breaks when the module using the phy subsystem is build-in and
the phy-core is not, which leads to the build failing with missing symbol
errors in the linking stage of the zImage.

Which leads to gems such as this being added to the Kconfig for achi_platform:

	depends on GENERIC_PHY || !GENERIC_PHY

Rather then duplicating this code in a lot of places using the phy-core,
I believe it is better to simply not allow the phy-core to be built as a
module. The phy core is quite small and has no external dependencies, so
always building it in when enabling it should not be an issue.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:13:16 -08:00
Hans de Goede
767a1b5d6e phy-core: Don't propagate -ENOSUPP from phy_pm_runtime_get_sync to caller
The phy-core allows phy_init and phy_power_on to be called multiple times,
but before this patch -ENOSUPP from phy_pm_runtime_get_sync would be
propagated to the caller for the 2nd and later calls.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:13:16 -08:00
Hans de Goede
f40037fd36 phy-core: phy_get: Leave error logging to the caller
In various cases errors may be expected, ie probe-deferral or a call to
phy_get from a driver where the use of a phy is optional.

Rather then adding all sort of complicated checks for this, and/or adding
special functions like devm_phy_get_optional, simply don't log an error,
and let deciding if get_phy returning an error really should result in a
dev_err up to the caller.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:13:15 -08:00
Richard Weinberger
06c304e889 phy,phy-bcm-kona-usb2.c: Add dependency on HAS_IOMEM
On archs like S390 or um this driver cannot build nor work.
Make it depend on HAS_IOMEM to bypass build failures.

drivers/phy/phy-bcm-kona-usb2.c:114: undefined reference to `devm_ioremap_resource'

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18 12:13:15 -08:00
Andrew Lunn
788a4d56ff drivers: phy: Add support for optional phys
Add devm_phy_optional_get and phy_optional_get, which should be used
when the phy is optional. They does not return an error when the phy
does not exist, rather they returns NULL, which is considered as a valid
phy, but results in NOPs when used with the consumer API.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-05 05:48:43 +00:00
Andrew Lunn
04c2facad8 drivers: phy: Make NULL a valid phy reference
The common clock framework considers NULL a valid clock
reference. This makes handling optional clocks simple, in that if the
optional clock is not available, a NULL reference can be used in the
place of a real clock, simplifying the clock consumer.

Extend this concept to the phy consumer API. A NULL can be passed to
the release calls, the phy_init() and phy_exit() calls, and
phy_power_on() and phy_power_off() and a NOP is performed.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-05 05:27:54 +00:00
Linus Torvalds
4ba9920e5e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) BPF debugger and asm tool by Daniel Borkmann.

 2) Speed up create/bind in AF_PACKET, also from Daniel Borkmann.

 3) Correct reciprocal_divide and update users, from Hannes Frederic
    Sowa and Daniel Borkmann.

 4) Currently we only have a "set" operation for the hw timestamp socket
    ioctl, add a "get" operation to match.  From Ben Hutchings.

 5) Add better trace events for debugging driver datapath problems, also
    from Ben Hutchings.

 6) Implement auto corking in TCP, from Eric Dumazet.  Basically, if we
    have a small send and a previous packet is already in the qdisc or
    device queue, defer until TX completion or we get more data.

 7) Allow userspace to manage ipv6 temporary addresses, from Jiri Pirko.

 8) Add a qdisc bypass option for AF_PACKET sockets, from Daniel
    Borkmann.

 9) Share IP header compression code between Bluetooth and IEEE802154
    layers, from Jukka Rissanen.

10) Fix ipv6 router reachability probing, from Jiri Benc.

11) Allow packets to be captured on macvtap devices, from Vlad Yasevich.

12) Support tunneling in GRO layer, from Jerry Chu.

13) Allow bonding to be configured fully using netlink, from Scott
    Feldman.

14) Allow AF_PACKET users to obtain the VLAN TPID, just like they can
    already get the TCI.  From Atzm Watanabe.

15) New "Heavy Hitter" qdisc, from Terry Lam.

16) Significantly improve the IPSEC support in pktgen, from Fan Du.

17) Allow ipv4 tunnels to cache routes, just like sockets.  From Tom
    Herbert.

18) Add Proportional Integral Enhanced packet scheduler, from Vijay
    Subramanian.

19) Allow openvswitch to mmap'd netlink, from Thomas Graf.

20) Key TCP metrics blobs also by source address, not just destination
    address.  From Christoph Paasch.

21) Support 10G in generic phylib.  From Andy Fleming.

22) Try to short-circuit GRO flow compares using device provided RX
    hash, if provided.  From Tom Herbert.

The wireless and netfilter folks have been busy little bees too.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2064 commits)
  net/cxgb4: Fix referencing freed adapter
  ipv6: reallocate addrconf router for ipv6 address when lo device up
  fib_frontend: fix possible NULL pointer dereference
  rtnetlink: remove IFLA_BOND_SLAVE definition
  rtnetlink: remove check for fill_slave_info in rtnl_have_link_slave_info
  qlcnic: update version to 5.3.55
  qlcnic: Enhance logic to calculate msix vectors.
  qlcnic: Refactor interrupt coalescing code for all adapters.
  qlcnic: Update poll controller code path
  qlcnic: Interrupt code cleanup
  qlcnic: Enhance Tx timeout debugging.
  qlcnic: Use bool for rx_mac_learn.
  bonding: fix u64 division
  rtnetlink: add missing IFLA_BOND_AD_INFO_UNSPEC
  sfc: Use the correct maximum TX DMA ring size for SFC9100
  Add Shradha Shah as the sfc driver maintainer.
  net/vxlan: Share RX skb de-marking and checksum checks with ovs
  tulip: cleanup by using ARRAY_SIZE()
  ip_tunnel: clear IPCB in ip_tunnel_xmit() in case dst_link_failure() is called
  net/cxgb4: Don't retrieve stats during recovery
  ...
2014-01-25 11:17:34 -08:00
Linus Torvalds
ec513b16c4 USB patches for 3.14-rc1
Here's the big USB pull request for 3.14-rc1
 
 Lots of little things all over the place, and the usual USB gadget
 updates, and XHCI fixes (some for an issue reported by a lot of people.)
 USB PHY updates as well as chipidea updates and fixes.
 
 All of these have been in the linux-next tree with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here's the big USB pull request for 3.14-rc1

  Lots of little things all over the place, and the usual USB gadget
  updates, and XHCI fixes (some for an issue reported by a lot of
  people).  USB PHY updates as well as chipidea updates and fixes.

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

* tag 'usb-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (318 commits)
  usb: chipidea: udc: using MultO at TD as real mult value for ISO-TX
  usb: chipidea: need to mask INT_STATUS when write otgsc
  usb: chipidea: put hw_phymode_configure before ci_usb_phy_init
  usb: chipidea: Fix Internal error: : 808 [#1] ARM related to STS flag
  usb: chipidea: imx: set CI_HDRC_IMX28_WRITE_FIX for imx28
  usb: chipidea: add freescale imx28 special write register method
  usb: ehci: add freescale imx28 special write register method
  usb: core: check for valid id_table when using the RefId feature
  usb: cdc-wdm: resp_count can be 0 even if WDM_READ is set
  usb: core: bail out if user gives an unknown RefId when using new_id
  usb: core: allow a reference device for new_id
  usb: core: add sanity checks when using bInterfaceClass with new_id
  USB: image: correct spelling mistake in comment
  USB: c67x00: correct spelling mistakes in comments
  usb: delete non-required instances of include <linux/init.h>
  usb:hub set hub->change_bits when over-current happens
  Revert "usb: chipidea: imx: set CI_HDRC_IMX28_WRITE_FIX for imx28"
  xhci: Set scatter-gather limit to avoid failed block writes.
  xhci: Avoid infinite loop when sg urb requires too many trbs
  usb: gadget: remove unused variable in gr_queue_int()
  ...
2014-01-20 16:13:02 -08:00