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| author |   Geert Uytterhoeven <geert+renesas@glider.be> | 2014-05-22 20:07:35 +0200 |
|---|---|---|
| committer |   Mark Brown <broonie@linaro.org> | 2014-05-26 14:30:37 +0100 |
| commit | 3beb61dbfcf188399cbc36ce1eeb8b2ba724de38 (patch) | |
| tree | 03a8a90b71a75dfc60b468fc541d59731b92470a /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | Linux 3.15-rc1 (diff) | |
| download | linux-dev-3beb61dbfcf188399cbc36ce1eeb8b2ba724de38.tar.xz linux-dev-3beb61dbfcf188399cbc36ce1eeb8b2ba724de38.zip | |
spi: rspi: Round up division to avoid slave overclocking
The calculation of the bit rate divider used a standard C division, which
rounds down the quotient. This may lead to a higher bitrate than requested.
Round up to avoid this.
E.g. on Koelsch, the SPI flash (configured for 30 MHz) was driven at 48.75
MHz. After this patch it's driven at a safe 24.375 MHz.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions