The various FSI devices (sbefifo, occ, scom, more to come) currently use misc devices. This is problematic as the minor device space for misc is limited and there can be a lot of them. Also it limits our ability to move them to a dedicated /dev/fsi directory or to be smart about device naming and numbering. It also means we have IDAs on every single of these drivers This creates a common fsi "device_type" for the optional /dev/fsi grouping and a dev_t allocator for all FSI devices. "Legacy" devices get to use a backward compatible numbering scheme (as long as chip id <16 and there's only one copy of a given unit type per chip). A single major number and a single IDA are shared for all FSI devices. This doesn't convert the FSI device drivers to use the new scheme yet, they will be converted individually. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> |
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.. | ||
cf-fsi-fw.h | ||
fsi-core.c | ||
fsi-master-ast-cf.c | ||
fsi-master-gpio.c | ||
fsi-master-hub.c | ||
fsi-master.h | ||
fsi-sbefifo.c | ||
fsi-scom.c | ||
Kconfig | ||
Makefile |