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| author | Doug Anderson <dianders@chromium.org> | 2014-08-28 23:43:48 (GMT) |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-08-29 11:07:38 (GMT) |
| commit | 5d1d150d7d775db1dccb4dc4676075d456dea392 (patch) | |
| tree | 97b66a4e7603fcf679b1b2a54a7b63de61b3f793 /kernel/sys_ni.c | |
| parent | 0ac7a4904ae1a73ae4c2c18ff6a5dd2b7e03254c (diff) | |
| download | linux-5d1d150d7d775db1dccb4dc4676075d456dea392.tar.xz | |
spi/rockchip: Avoid accidentally turning off the clock
If our client is requesting a clock that is above the maximum clock
then the following division will result in 0:
rs->max_freq / rs->speed
We'll then program 0 into the SPI_BAUDR register. The Rockchip TRM
says: "If the value is 0, the serial output clock (sclk_out) is
disabled."
It's much better to end up with the fastest possible clock rather than
a clock that is off, so enforce a minimum value.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'kernel/sys_ni.c')
0 files changed, 0 insertions, 0 deletions