[PATCH 1/2] gpio: Add driver for AXM55xx SSP chip selects

[Mark Brown]

On Fri, Sep 05, 2014 at 11:05:37AM +0200, Anders Berg wrote:

> Well, the problem with adding this to the spi-pl022 driver (as a
> vendor specific extension) is that this IP block unfortunately isn't
> distinguishable from the standard ARM PL022 implementation (same
> values in the PrimeCell identification registers). That's why I went
> down the GPIO path...

Would it not be more straightforward to just register it as a platform
device in this case, or use a separate OF ID in the DT?  We appear to
specify a compatible string when registering AMBA devices even if we are
capable of identifying using the ID registers.
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