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>

drivers: bus: Match against id_table first ...

Matching against driver's name before looking throught its id_table
can lead to a somewhat strange and unintuitive behaviour where a
device whose driver's name matches one of the lines in id_table (which
is not unheard of in Linux kernel) will be probed against said driver
with 'id_table' field set to NULL which in turn will result in
dev_get_drvdata erroring out with -ENODEV.

This patch changes the behaviour such that device_match() only tries
to match against driver's name only if id_table of that driver is not
present.

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

drivers/base: Mark (of|platform)_device_id data as constant ...

There should be no reason to ever change the data pointed to by id_table
or of_compatible. So make this offical by adding some 'const's.

In Linux the corresponding pointers are marked as const, too.

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>

treewide: Add missing includes ...

A lot of files rely on include/driver.h including include/of.h (and
this including include/errno.h. include the files explicitly so we can
eventually get rid of including of.h from driver.h

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>

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>

bus: add bus device ...

automatically add it as parent of any bus device if none already specified

we have now a nice output per bus

barebox@Atmel at91sam9x5-ek:/
devices:
`---- platform
     `---- atmel_usart0
          `---- cs0
     `---- atmel_usart1
          `---- cs1
     `---- mem0
          `---- 0x00000000-0x07ffffff: /dev/ram0
     `---- mem1
          `---- 0x00000000-0x00007fff: /dev/sram0
     `---- mem2
          `---- 0x00000000-0x000037bf: /dev/defaultenv
     `---- mem3
          `---- 0x00000000-0xfffffffe: /dev/mem
     `---- cs2
     `---- w1-gpio
          `---- w1_bus0
               `---- w1-2d-0
                    `---- 0x00000000-0x0000007f: /dev/ds24310
               `---- w1-2d-1
                    `---- 0x00000000-0x0000007f: /dev/ds24311
               `---- w1-23-0
                    `---- 0x00000000-0x000001ff: /dev/ds24330
     `---- at91sam9x5cm
     `---- at91sam9x5ek
     `---- at91sam9x5dm
     `---- atmel_nand0
          `---- nand0
               `---- 0x00000000-0x1fffffff: /dev/nand0
               `---- 0x00000000-0x0003ffff: /dev/at91bootstrap_raw
               `---- 0x00040000-0x0009ffff: /dev/self_raw
               `---- 0x000a0000-0x000bffff: /dev/env_raw
               `---- 0x000c0000-0x000dffff: /dev/env_raw1
               `---- 0x00000000-0x0003ffff: /dev/nand0.at91bootstrap
               `---- 0x00040000-0x0009ffff: /dev/nand0.barebox
               `---- 0x000a0000-0x000bffff: /dev/nand0.bareboxenv
               `---- 0x000c0000-0x000dffff: /dev/nand0.bareboxenv2
               `---- 0x000e0000-0x000fffff: /dev/nand0.oftree
               `---- 0x00100000-0x001fffff: /dev/nand0.free
               `---- 0x00200000-0x007fffff: /dev/nand0.kernel
               `---- 0x00800000-0x07ffffff: /dev/nand0.rootfs
               `---- 0x08000000-0x1fffffff: /dev/nand0.data
     `---- macb0
          `---- miibus0
          `---- eth0
     `---- atmel_spi0
          `---- mtd_dataflash0
               `---- dataflash0
                    `---- 0x00000000-0x0041ffff: /dev/dataflash0
     `---- atmel_mci0
          `---- mci0
               `---- 0x00000000-0x1d9bfffff: /dev/disk0
               `---- 0x00100000-0x064fffff: /dev/disk0.0
               `---- 0x06500000-0x1d9bfffff: /dev/disk0.1
     `---- i2c-gpio0
          `---- i2c0
               `---- qt10700
                    `---- cs3
`---- mdio_bus
`---- spi
`---- i2c
`---- w1_bus
`---- fs
     `---- ramfs0
     `---- devfs0
`---- net
`---- global

drivers:
atmel_usart
ramfs
devfs
fat
macb
Generic PHY
atmel_nand
mtd_dataflash
m25p80
atmel_spi
i2c-gpio
mci
atmel_mci
qt1070
w1-gpio
ds2431
ds2433
mem

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

driver: make get_bus_by_name static ...

We have no prototype for it, so it should be static.

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

driver: search device and driver based on the bus instead of all ...

This will allow reduce the number of driver and device to search on.

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

driver: register bus ...

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