The SPI API states:
"max_sys_freq is the maximum frequency supported by the slave it
will deal with"
However, currently, for DW the max_sys_freq is a divider which confuses
the user.
This patch adds a small hack to allow users to use both dividers and
frequencies when configuring the bus. The only trade-off is one has to
use dividers for bus frequencies smaller than 65536Hz. However, since
most devices nowadays can run at clock frequencies more than 100kHz,
this is a good compromise.
Change-Id: I44386cc8ad501b08eeaf71bc7588661ff36e108b
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
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