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| H A D | spi-rockchip.c | diff 5d1d150d7d775db1dccb4dc4676075d456dea392 Thu Aug 28 18:43:48 CDT 2014 Doug Anderson <dianders@chromium.org> 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>
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