diff options
| author | Geert Uytterhoeven <[email protected]> | 2014-05-22 20:07:35 +0200 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2014-05-26 14:30:37 +0100 |
| commit | 3beb61dbfcf188399cbc36ce1eeb8b2ba724de38 (patch) | |
| tree | 03a8a90b71a75dfc60b468fc541d59731b92470a /include/linux/fpga/fpga-mgr.h | |
| parent | c9eaa447e77efe77b7fa4c953bd62de8297fd6c5 (diff) | |
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 <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Diffstat (limited to 'include/linux/fpga/fpga-mgr.h')
0 files changed, 0 insertions, 0 deletions