driver: workaroud resource request that conflicts with errno PTR ...

broken since

commit ed6e965
Author:     Sascha Hauer <s.hauer@pengutronix.de>
resource: Let dev_request_mem_region return an error pointer

Introduce dev_request_mem_region_err_null

only used on platform like at91 where the resource address conflicts
with errno PTR.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: remove doxygen documentation ...

The doxygen documentation is long outdated. Remove it. It will
be replaced with sphinx based documentation later.

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

x86: ns16550: Rework driver to allow for x86 I/O space ...

The current implementation fakes a memory-mapped I/O device
at 0x3f8 and 0x2f8, then uses platform read/write functions
to do the actual reading and writing. These platform functions
only exist for the x86 platform; better to move the I/O
routines into the driver and have the driver request I/O ports
using request_ioport_region.

Signed-off-by: Michel Stam <michel@reverze.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

common: Allow for I/O mapped I/O ...

Rework the current framework so that I/O mapped I/O resources are
also possible.

Signed-off-by: Michel Stam <michel@reverze.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/partitionhelper' ...

Conflicts:
	fs/devfs-core.c

devfs: partitioning: add new helper devfs_create_partitions ...

Compared to devfs_add_partition which adds a single partition
devfs_create_partitions creates several partitions at once. One nice
benefit is that this simplifies appending partitions because the start
of the latter partition doesn't need to be specified explicitly.
Also dev_add_bb_dev() is called by the new helper if the bbname is
specified for a partition.

Note that adding partitions is also more flexible now (also via
devfs_add_partition) because negative values for offset and size now
have a proper meaning instead of creating broken partitions.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

devfs_add_partition: make flags parameter unsigned ...

The value is only used to assign to a (*struct cdev)->flags which is an
unsigned int and it is passed as fourth parameter of mtd_add_partition which
is an unsigned long.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i2c/spi: match of_modaliases ...

i2c/spi devices in the devicetree often come with a "vendor,device"
comaptible string. These do not match in barebox, so add a
device_match_of_modalias function which does exactly that.

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

device: Add functions to add resources ...

We currently have functions to add a device based on function parameters.
This adds the corresponding functions to add resources to a device without
registering the device itself. This is useful to manipulate devices before
registering them.

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

cdev: store dos partition type in struct cdev ...

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

Merge branch 'for-next/of' ...

Conflicts:
	arch/arm/boards/freescale-mx53-loco/board.c
	drivers/of/Makefile

Merge branch 'for-next/mtd'

dma: apbh: Turn into a driver ...

This converts the apbh driver into a real driver.

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

cdev: add device_find_partition ...

device_find_partition allows to find a partition of a device with
a particular name.

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

cdev: allow to open a struct cdev ...

cdev_open() opens a cdev by name. This introduces cdev_do_open which
allows to open a cdev when the cdev is already found by other means.

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

cdev: introduce partition names ...

currently most partition cdevs have the name <devname>.<partname>
This makes it hard to find a partition by <partname>. This introduces
a partname field in struct cdev so that.

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

devfs: let devfs_add_partition return the new partition ...

Useful for unregistering later or for adding addional flags.

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

base: Transform "platform_match" into "device_match" and make this function public ...

This change will allow reuse this function for other buses.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

driver: implement device_detect_by_name function ...

It becomes a common pattern for boards to find a device and
call device_detect on it. Add a convenience wrapper for it.

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

Merge branch 'for-next/mci' ...

Conflicts:
	include/driver.h

devices: add detect mechanism ...

We often encounter the situation where slow devices should not be
probed during startup since probing is slow and maybe unnecessary
for unused devices. With MMC we have the 'probe' device parameter,
for ata we have the same, for USB we have the 'usb' command. Overall
this is not very consistent.
With MMC there is the additional problem that the probe parameter
is attached to the logical device when we often have the information
which physical device we want to probe.
This patch adds a 'detect' callback for devices and adds a command
to detect devices and to list the devices which are actually detecable.

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

driver: Attach info callback to device, not to driver ...

Since the info is device specific and not driver specific, attach
the callback to the device. This makes it possible to have a info
callback for a device which does not have a driver attached.

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

of: Add of_match_node function ...

To match a of_device_id arrays against a device_node. Same functionality
as in the kernel.

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

Merge branch 'for-next/malloc-all-initcalls'

bus: Make struct device a pointer ...

struct bus_type contains an embedded struct device_d which is quite
a big structure. Dynamically allocate this instead to save the space
in the binary.

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

Introduce console_platform_driver() macro and use it for serial drivers ...

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Extend device_platform_driver macro ...

This patch extends device_platform_driver macro, so now we allow
use it with various init levels and subsystems.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Make "dev_get_resource" publicly available ...

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Introduce device_platform_driver() macro ...

device_platform_driver() - Helper macro for drivers that don't do
anything special in module registration. This eliminates a lot of
boilerplate. Driver registration will called on device_initcall.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

consolidate print* in a single header ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>