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: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NRoger Quadros <rogerq@ti.com>
Acked-by: NFelipe Balbi <balbi@ti.com>

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: NGeorge Cherian <george.cherian@ti.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

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: NAustin Beam <austinbeam@ti.com>
Signed-off-by: NGeorge Cherian <george.cherian@ti.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

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: NGeorge Cherian <george.cherian@ti.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

Add support for Exynos 5250. This driver is to replace the old
USB 2.0 PHY driver.
Signed-off-by: NKamil Debski <k.debski@samsung.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

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: NKamil Debski <k.debski@samsung.com>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

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: NKamil Debski <k.debski@samsung.com>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

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: NKamil Debski <k.debski@samsung.com>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

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: NKishon Vijay Abraham I <kishon@ti.com>

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: NKishon Vijay Abraham I <kishon@ti.com>
Acked-by: NFelipe Balbi <balbi@ti.com>
Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

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: NKishon Vijay Abraham I <kishon@ti.com>

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: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Acked-by: NJason Cooper <jason@lakedaemon.net>

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: NHans de Goede <hdegoede@redhat.com>
Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

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: NYuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Signed-off-by: NGirish K S <ks.giri@samsung.com>
Signed-off-by: NVasanth Ananthan <vasanth.a@samsung.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

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: NSylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Acked-by: NJingoo Han <jg1.han@samsung.com>
Acked-by: NFelipe Balbi <balbi@ti.com>
Acked-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

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: NSylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Acked-by: NFelipe Balbi <balbi@ti.com>
Acked-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

PTR_ERR_OR_ZERO simplifies the code.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Cc: Matt Porter <mporter@linaro.org>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

Semicolon after switch statement is not needed.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

Silences the following warnings:
WARNING: sizeof *twl should be sizeof(*twl)
WARNING: sizeof *otg should be sizeof(*otg)
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

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: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Acked-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

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: NHans de Goede <hdegoede@redhat.com>
Acked-by: NRoger Quadros <rogerq@ti.com>
Acked-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

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: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

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: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

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: NRichard Weinberger <richard@nod.at>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

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: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NGregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

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: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NGregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

On archs like S390 or um this driver cannot build nor work.
Make it depend on HAS_IOMEM to bypass build failures.

drivers/built-in.o: In function `exynos_mipi_video_phy_probe':
drivers/phy/phy-exynos-mipi-video.c:130: undefined reference to `devm_ioremap_resource'
Signed-off-by: NRichard Weinberger <richard@nod.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Kirkwood and Dove can turn the SATA phy on and off. Add a PHY driver
to control this.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

There were a few places where variables are initialized unncessarily.
Remove those initializations.
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

Increment 'init_count' only if the 'init' callback succeeded and decrement
'init_count' only if the 'exit' callback succeded. Increment 'power_count'
only if 'power_on' callback succeded and if it failed disable the clocks using
phy_pm_runtime_put_sync(). Also decrement 'power_count' only if 'power_off'
callback succeded and if it failed do not disable the clocks.
Reported-by: NGeorge Cherian <george.cherian@ti.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

In case pm_runtime_get*() fails, it still
increments pm usage counter, so we *must*
make sure to pm_runtime_put() even in those
cases.

This patch fixes that mistake the same way
usbcore treats those possible failures.
Signed-off-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

Add a driver for the internal Broadcom Kona USB 2.0 PHY found
on the BCM281xx family of SoCs.
Signed-off-by: NMatt Porter <mporter@linaro.org>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Fixes
warning: (OMAP_USB2 && TWL4030_USB) selects USB_PHY which has unmet
direct dependencies (USB_SUPPORT)
that shows up while disabling USB_SUPPORT from menuconfig.
Reported-by: NRussell King <linux@arm.linux.org.uk>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Acked-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

If this was called with a NULL "dev" then it lead to a NULL dereference
when we called dev_WARN().  I have changed it to WARN_ON() so that we
get a stack dump and can fix the caller.

The rest of this patch is just cleanup like returning directly instead
of having do-nothing gotos.  Using descriptive labels instead of
GW-BASIC style "err0" and "err1".  I also flipped the order of
put_device() and ida_remove() so they are a mirror reflection of the
order they were allocated.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

'phy' was not being freed upon error in one of the cases.
Adjust the 'goto's to fix this.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix argument passed to the register setup helper function so
the phy is actually disabled. Now due to cut&paste error 1 is
passed to both phy_power_on() and phy_power_off().

Reported by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: NJingoo Han <jg1.han@samsung.com>
Acked-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Add a PHY provider driver for the Samsung Exynos SoC Display Port PHY.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Add a PHY provider driver for the Samsung S5P/Exynos SoC MIPI CSI-2
receiver and MIPI DSI transmitter DPHYs.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

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: NRoger Quadros <rogerq@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Now that twl4030-usb is adapted to the new generic PHY framework,
*set_suspend* and *phy_init* ops can be removed from twl4030-usb driver.
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Acked-by: NFelipe Balbi <balbi@ti.com>
Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>