FMC: add a software mezzanine driver

This simple do-nothing mezzanine driver shows how to write a mezzanine
driver, that can also handle interrupts reported by the carrier.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Juan David Gonzalez Cobas <dcobas@cern.ch>
Acked-by: Emilio G. Cota <cota@braap.org>
Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/fmc/Kconfig b/drivers/fmc/Kconfig
index 505e96b02a93..7eacef990be8 100644
--- a/drivers/fmc/Kconfig
+++ b/drivers/fmc/Kconfig
@@ -25,4 +25,11 @@ config FMC_FAKEDEV
           that can be rewritten at run time and usef for matching
           mezzanines.
 
+config FMC_TRIVIAL
+        tristate "FMC trivial mezzanine driver (software testing)"
+        help
+          This is a fake mezzanine driver, to show how FMC works and test it.
+          The driver also handles interrupts (we used it with a real carrier
+          before the mezzanines were produced)
+
 endif # FMC