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| author |   Jiada Wang <jiada_wang@mentor.com> | 2017-01-06 04:22:18 -0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2017-01-06 18:09:22 +0000 |
| commit | 66459c5a50a787c474b734b586328f7111ab6df0 (patch) | |
| tree | 88df0f0674456138bfc9842585e371ee8b82fe82 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | Merge remote-tracking branches 'spi/topic/spidev', 'spi/topic/sunxi', 'spi/topic/ti-qspi', 'spi/topic/topcliff-pch' and 'spi/topic/xlp' into spi-next (diff) | |
| download | linux-rng-66459c5a50a787c474b734b586328f7111ab6df0.tar.xz linux-rng-66459c5a50a787c474b734b586328f7111ab6df0.zip | |
spi: imx: adjust watermark level according to transfer length
Previously DMA watermark level is configured to fifosize/2,
DMA mode can be used only when transfer length can be divided
by 'watermark level * bpw', which makes DMA mode not pratical.
This patch adjusts watermark level to largest number (no bigger
than fifosize/2) which can divide 'tranfer length / bpw' for
each transfer.
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions