Merge branch 'for-next/usb'

Merge branch 'for-next/net-switch-mv88e6xxx'

Merge branch 'for-next/missing-prototypes'

Merge branch 'for-next/misc'

Merge branch 'for-next/imx'

Merge branch 'for-next/gpio'

Merge branch 'for-next/driver'

lib: Port CRC8 implementation from Linux kernel ...

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: implement d_revalidate ...

d_revalidate is useful when filesystems change under the hood of the
fs layer. This can happen with network filesystems or with devfs.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usbgadget: autostart: add DFU support ...

Use global variable dfu_function to autostart DFU. As similar code
is used to start multifunction gadget using command, move common
code to common/usbgadget.c and consolidate it.
It turned out that '-s' option of usbgadget command does nothing,
so remove its help text and make it function as '-a'.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: gadget: fsl_udc: pass controller instance to unregister ...

ci_udc_unregister() used to unregister "the controller". Since we
may register multiple chipidea devices we called ci_udc_unregister()
for each of them. This led to messages like:

ERROR: imx-usb 53f80000.usb: gadget not registered.

Fix this by returning the registered controller. This allows us to call
ci_udc_unregister() only when we actually registered one before.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: host: ehci: do not use dev->priv ...

An ehci can be registered with ehci_register which is passed a struct
device_d *. In that case the priv pointer may already be used by the
caller, so we must not use it in the ehci code. At least for the Atmel
ehci driver this fixes a bug, here dev->priv is set two times to
different values.
Since we need dev->priv in the ehci code to get the controller in
ehci_detect() we can no longer implement that without the help of the
caller, hence we eport ehci_detect() and epect it to be called by
the code which registers a ehci host.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: host: ehci: add ehci_unregister() ...

ehci_register() allocates data and registers a ehci host. Add
ehci_unregister() to properly halt the controller and to free the memory
again.. To do so, change ehci_register() to return the ehci host rather
than an error code.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

drivers: base: Drop dev_get_mem_region_by_name() ...

Drop dev_get_mem_region_by_name() which doesn't seem to have any users
in the codebase.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

gpiolib: Introduce gpio_find_by_label() ...

Introduce gpio_find_by_label() in order to allow manipulating GPIOs by
the labels assigned to them via DT or board/driver code.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: Port kstrtox.c from Linux kernel ...

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

linux/ctype.h: Port _tolower() ...

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: dhcp: fix option 54 ...

Option 54 (Server Identifier) is something different than
SIADDR (Server IP address). Currently they are used
interchangeably. This causes DHCPNAK with DHCP servers that
have configured different values for each field.

Create new 'dhcp_serverip' field in 'struct dhcp_result', so we treat
option 54 separately. This fixes DHCP requests for servers that send
two different values for SIADDR and option 54 in DHCPOFFER.

Fixes: 528298b702a0 ("net: dhcp: rework")
Fixes: e18cc5b7e9ce ("DHCP: fix option 54 passing")
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: Add usb_unregister_host() ...

We have usb_register_host() which puts a new host on the list
of hosts we should also have the opposite which removes the
host from the list again.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mdio_bus: Allow for non PHY-devices on MDIO buses ...

Instead of just creating a simple PHY device for every child of MDIO
bus node, add code to check if any of them have "compatible" property
set, as well as code to create a proper platform device for such
cases.

This change is useful for when MDIO bus and some of Ethernet ports are
connected to a switch or some other MDIO device that doesn't behave
like a generic PHY and can't be probed via its PHY ID.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i2c: introduce device_i2c_driver() macro ...

Add macro and dependency to avoid boilerplate code. Since now simple
i2c drivers only have to include the i2c.h header and call the
device_i2c_driver() macro to register a i2c device driver.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

dma: Add missing re-inclusion protector ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

include: linux: ethtool: Add missing *_UNKNOWN constants ...

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

include: linux: phy: Add missing PHY_INTERFACE_* constants ...

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

linux: string: Port kbasename() ...

Port kbasename() from Linux and use it to implement basename() we
already have.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

drivers: base: Convert device_d name to be dynamically allocated ...

Convert device_d name to be dynamically allocated in order to lift
MAX_DRIVER_NAME length limit needed for commits that follow.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

base: Don't use shared buffer for results of dev_id() ...

Using shared memory buffer to return results of dev_id() leads to
incorrect results when used as follows:

    dev_info(..., "... %s ...\n", ..., dev_name(foo), ...);

since result returned for dev_name(foo) will be overwritten by
dev_name() call that will happen as a part of dev_* logging functions.

To prevent that allocate a dedicated field "unique_name" in struct
device_d and use it to store unique name returned by
dev_id()/dev_name().

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

drivers: Introduce dev_set_name() ...

Introduce dev_set_name() in order to hide implementation details of
setting device's name so it'd be easier to change it.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/ubifs'

Merge branch 'for-next/ratp'