Add capability to SPIBUS to have child device with IRQ. For example many ADC chip have a dedicated pin to signal "data ready" and the host can just wait for a interrupt to go out and read the result. It is the same code as in R282674 and R282702 for IICBUS by Michal Meloun Submitted by: Oskar Holmund <oskar.holmlund@ohdata.se> Differential Revision: https://reviews.freebsd.org/D27396 |
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ofw_spibus.c | ||
spi.h | ||
spibus_if.m | ||
spibus.c | ||
spibusvar.h | ||
spigen.c |