We already have a considerable amount of USB
PHY drivers, making it a menuconfig just
prevents us from adding too much churn to
USB's menuconfig.

While at that, also select USB_OTG_UTILS from
this new menuconfig just to keep backwards
compatibility until we manage to remove
that symbol.
Signed-off-by: Felipe Balbi <balbi@ti.com>

that's a much more reasonable location for
those drivers. It helps us saving drivers/usb/otg/
for when we actually start adding generic OTG
code.

Also completely delete drivers/usb/otg/ as there's
nothing left there.
Signed-off-by: Felipe Balbi <balbi@ti.com>

we only want GPL users for our generic functions,
so let's switch over to EXPORT_SYMBOL_GPL.
Signed-off-by: Felipe Balbi <balbi@ti.com>

otg.c only had a single function definition
which might make more sense to be placed in
usb-common.c. While doing that, we also delete
otg.c since it's now empty.
Signed-off-by: Felipe Balbi <balbi@ti.com>

all other functions under drivers/usb/ start
with usb_, let's do the same thing.

This patch is in preparation for moving otg_state_string
to usb-common.c and deleting otg.c completely.
Signed-off-by: Felipe Balbi <balbi@ti.com>

that way we will only tell gadget framework about
the endpoints we actually have.
Signed-off-by: Felipe Balbi <balbi@ti.com>

hwparams2 holds the number of endpoints which
were selected during RTL generation, we can
use that on our driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>

kfree on NULL pointer is a no-op.
Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

CONFIG_USB_MUSB_DEBUG option was removed in

5c8a86e1 usb: musb: drop unneeded musb_debug trickery

to cleanup the code from driver specific debug facilities.  This patch
drops the last references to the musb debug config option,
unconditionally enabling all debug code paths, thus letting that code
being dropped at compile time if not needed.
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>

module_platform_driver_probe() eliminates the boilerplate and simplifies
the code.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

Now that machines may select dwc3's working mode (HOST only,
GADGET only or DUAL_ROLE) via Kconfig, let's set dwc3's mode
based on that, rather than fixing it to whatever hardware
says.

This way we can skip initializing Gadget/Host in case
we are using Host-only/Gadget-only mode respectively.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

This patch converts the mxs-phy driver from readl_relaxed(), writel_relaxed()
to the plain readl(), writel() functions, which are available on all platforms.

This is done to enable compile time testing on non ARM platforms.
Reported-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>

We now have usb_add_phy_dev(), so use it to register with the framework
to be able to find the phy from the USB driver.
Tested-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>

Most of otg/otg.c is not otg specific, but phy specific, so move it
to the phy directory.
Tested-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Reported-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>

In DWC3 versions < 2.50a configured without
Hibernation mode enabled, there will be an
extra link status change interrupt if device
detects host-initiated U3 exit.

In that case, core will generate an unnecessary
U3 -> RESUME transition which should be ignored
by the driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>

Some new revisions of the DWC3 core have
been released, let's add our defines to help
implementing known erratas.
Signed-off-by: Felipe Balbi <balbi@ti.com>

current code only allows the file owner (usually
root) to read current_speed and maximum_speed
sysfs files. Let anyone read those.
Signed-off-by: Felipe Balbi <balbi@ti.com>

now that no UDC driver touches gadget.dev.release
we can assign our release function to it without
being afraid of breaking anything.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

not all UDC drivers need a proper release function,
for those which don't need it, we udc-core will provide
a no-op release method so we can remove "redefinition"
of such methods in almost every UDC driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>

udc-core now handles that for us, which means
we can remove it from our driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>