[PATCH 14/36] ARM: OMAP2+: gpmc: Allow drivers to reconfigure GPMC settings & timings

[Tony Lindgren]

* Roger Quadros <rogerq at ti.com> [140611 01:58]:
> Some devices (e.g. TUSB6010, omap-onenand) need to reconfigure the GPMC
> timings in order to operate with different peripheral clock frequencies.
> Introduce omap_gpmc_retime() to allow them to do that. The driver
> needs to pass the chips select number, GPMC settings and Device timings to
> omap_gpmc_retime().
> 
> NOTE: Device tree and board code must still pass the most conservative
> timings to GPMC so that the device can be probed by the respective driver.
> e.g. Onenand must operate in asynchronous mode at bootup. The device driver
> can then request for more optimal timings via omap_gpmc_retime().

Hmm but many of the devices are Linux generic like sms91x and 8250 so it's
not nice to start stuffing omap bus specific data there.

I wonder if we should just keep device specific gpmc-smc91x.c etc
in drivers/memory?

Regards,

Tony