Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

The following patch deprecated the macro DEFINE_PCI_DEVICE_TABLE
in favor of using directly the structure type

------------------
commit 92e112fdbb3cb55b43390426501a7efacd893b96
Author: Joe Perches <joe@perches.com>
Date:   Fri Dec 13 11:36:22 2013 -0700

    PCI/checkpatch: Deprecate DEFINE_PCI_DEVICE_TABLE
------------------

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

It should not have any effect on previous kernels

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Compiling on kernel >=4.5 produces the following error:

  CC [M]  spec-sw/kernel/wr-nic-gpio.o
spec-sw/kernel/wr-nic-gpio.c: In function ‘gc_to_fmc’:
spec-sw/kernel/wr-nic-gpio.c:20:25: error: ‘struct gpio_chip’ has no member named ‘dev’
  struct device *dev = gc->dev;
                         ^
spec-sw/kernel/wr-nic-gpio.c: In function ‘wrn_gpio_init’:
spec-sw/kernel/wr-nic-gpio.c:75:4: error: ‘struct gpio_chip’ has no member named ‘dev’
  gc->dev = &fmc->dev;
    ^

This is due to a change in struct gpio_chip introduced in 4.5,
where the "dev" field was renamed to "parent".

58383c7 gpio: change member .dev to .parent

This patch makes our code compatible with modern kernel versions

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Signed-off-by: Dimitris Lampridis <Dimitris.Lampridis@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

This reverts commit 0598de40.

This was not a memory leakage because the fmc-bus release that
pointer for us. Is it good?

We allocate and it is someone else us free, it lacks of simmetry.
Probably the register function should be called devm_ like all
the others in the kernel who relase for your the memory. In this
way it is clear the behaviour.

We ack the GN4124 **before** the VIC. The other way around makes the
interrupt handling timing dependent. For instance. When the VIC
VIC_CTL_EMU_LEN_W is too short it may happens that the VIC asserts
the interrupt **before** the GN4124 is acked; then, so do not receive
interrupts anymore from the GN4124 because it misses the VIC edge.

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Signed-off-by: Michel Arruat <michel.arruat@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

with -V switch

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Changes in the buildsystem.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Use _ABS in Makefiles wherever possible.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

FMC_BUS_ABS is passed to Kbuild, which uses different current directory.
It is not trivial to handle FMC_BUS to be absolute or relative path.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

files wr_nic/.*.o.cmd were not removed

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

This allows parallel build.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Include parent_common.mk from up directory. Which may contain various
environment definitions such compiler, linker, etc. If such file is not
present it will not affect build.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

--export FMC_DRV
--correct passing GIT_VERSION

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

We were using vmalloc() assunign that its library was already included by some
other libraries. Today, this is not the case anymore, so we must include it

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Mainly for compatibility (simplification) with the CERN super module.
Insted of using a script to guess which fmc-bus define, assume always
that parent project define the FMC_BUS to use.

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

For the time being you must write the bitstream in a single write. For
example:

    dd if=/home/fvaga/spec-fmc-adc-v4.0.bin of=/dev/spec-0700 obs=5000000

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Typically old distro releases

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

a channel cannot be less than 0 due to data type (uint16_t). If someone
write a negative number this become something greater than 4 so the
control still works

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Since kernel 3.18 the gpiochip_remove function return void and not an
error code as before. In case the gpiochip is removed while there is a
requested gpio, the kernel will print an error message.

By applying this patch without any control on the kernel version we are
going to loose the error message in case of trouble with old kernels

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>