On Wed, Feb 26, 2020 at 09:31:33AM +0800, Chuanhong Guo wrote:
> On Wed, Feb 26, 2020 at 1:31 AM Rob Herring <robh@kernel.org> wrote:

> > You should should really only need 'spi-max-frequency' if the max freq
> > is less than the minimum of the host and device max freq.

> But current spi framework forces that a "spi-max-frequency" property
> is present. [0]
> Should we patch spi framework then?

That's one option, yes.  As far as I can tell the bindings have always
required an explicit frequency specified in the bindings but I've no
idea why.