Mark Brown b158935f70 spi: Provide common spi_message processing loop ... The loops which SPI controller drivers use to process the list of transfers in a spi_message are typically very similar and have some error prone areas such as the handling of /CS. Help simplify drivers by factoring this code out into the core - if drivers provide a transfer_one() function instead of a transfer_one_message() function the core will handle processing at the message level. /CS can be controlled by either setting cs_gpio or providing a set_cs function. If this is not possible for hardware reasons then both can be omitted and the driver should continue to implement manual /CS handling. This is a first step in refactoring and it is expected that there will be further enhancements, for example factoring out of the mapping of transfers for DMA and the initiation and completion of interrupt driven transfers. Signed-off-by: Mark Brown <broonie@linaro.org>		2013-10-11 20:09:50 +01:00
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events	spi: Provide common spi_message processing loop	2013-10-11 20:09:50 +01:00
define_trace.h	tracing: Add DEFINE_EVENT_FN() macro	2013-06-20 22:24:32 -07:00
ftrace.h	tracing/perf: Avoid perf_trace_buf_*() in perf_trace_##call() when possible	2013-08-13 21:06:30 -04:00
syscall.h	tracing: Add missing syscall_metadata comment	2013-07-01 20:34:25 -04:00