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| author | Yi Li <yi.li@analog.com> | 2009-06-03 13:46:22 +0400 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2010-10-18 10:49:29 +0400 |
| commit | f6a6d96685be6e784849d067b44acb831f595417 (patch) | |
| tree | 74676924942c6823b0b1517569394239d834943a /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | bb8beecd98de45f821a3360e0b061fc1f8da947c (diff) | |
| download | linux-f6a6d96685be6e784849d067b44acb831f595417.tar.xz | |
spi/bfin_spi: utilize the SPI interrupt in PIO mode
The current behavior in PIO mode is to poll the SPI status registers which
can obviously lead to higher latencies when doing a lot of SPI traffic.
There is a SPI interrupt which can be used instead to signal individual
completion of transactions.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions