fmc-bus is now fixed WRT the dev->release(). Now devices are correctly
released when their use count reaches zero. Thus, we can't release them
ourselves.

This commit picks the new fmc-bus and adapts th own releae method.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This includes a new version of the submodule and fixes the code
to match the new set of fields in the fmc structure. The biggest change
is in the i2c address, that is now hosted in the fmc structure (this
changes the spec-i2c file).

Also, use new fmc_reprogram().  The function allows to centralize
dumping the eeprom and the sdb tree, so the bus framework dumps or
not, and can be changed at run time.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Juan David Gonzalez Cobas authored 12 years ago and Alessandro Rubini committed 12 years ago

Forgot to deallocate the fmc_device allocated in spec_fmc_create.

Signed-off-by: Juan David Gonzalez Cobas <dcobas@cern.ch>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

These bits were intruced in Linux-3.3, so don't refer to them.
Rather, err out on all unimplemented bits.  This is a different
patch from what David suggested.

Reported-by: Juan David Gonzalez Cobas <dcobas@cern.ch>
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Federico Vaga authored 12 years ago and Alessandro Rubini committed 12 years ago

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

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

We haven't been able to run Message Signalled Interrupt
reliably, for a quirck in the Gennum chip and the kernel
insisting to configure it according to the standard. So this
adds "use_msi" as a module parameter, disabled by default.
See documentation for details.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This redoes part of
   0dcf4ed3

 kernel/spec-fmc: only enable irq1 from fpga
that I reverted. With this patch I only accept the two interrupt
lines from the FPGA (even if only one is being used),
ignoring the test points.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This reverts commit 0dcf4ed3.

After this I started having irq problems (missing events) so I'm not sure
it was the right thing to do. Try reverting as a quick solution for me.

There's the risk of getting spurious interrupts if the test points are
not connected as I use them, and the same may happen to the unused irq0
pin from the fpga

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Actually, Tom suggsted the fix and he's the author, but the swearing
is mine and I'd better get authorship for my complaints.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Federico Vaga authored 12 years ago and Alessandro Rubini committed 12 years ago

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

This offset used to be mandatory, but it is not any more. The gateware
I'm using has two aliases  in the 1M address space, so offset 0 is as good.
Other gateware (like the 100Msample ADC) use the whole address space,
so after this patch the ADC driver can use the fmc accessors like other
drivers.

EOF