Messages in this thread | | | Date | Tue, 11 Oct 2011 13:17:03 -0600 (MDT) | From | Paul Walmsley <> | Subject | Re: [PATCH 1/5 v13] arm: omap: usb: ehci and ohci hwmod structures for omap4 |
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Hi
On Tue, 11 Oct 2011, Felipe Balbi wrote:
> On Tue, Oct 11, 2011 at 12:52:05PM -0600, Paul Walmsley wrote: > > > On Tue, 11 Oct 2011, Felipe Balbi wrote: > > > > > maybe, but let's go with EXPORT_SYMBOL_GPL(). My only concern is that > > > this IP comes from synopsys, and I'm not really keen on adding > > > OMAP-specific, integration-related knowledge on a driver which was > > > supposed to be reusable ;-) > > > > > > But at least for the time being, I guess that's what we need to do ;-) > > > > Which IP is coming from Synopsys - the TLL ? The EXPORT_SYMBOL approach > > TLL and UHH are OMAP-only wrappers. EHCI and OHCI are Synopsys IPs for > all I know.
Ah, I see.
> > shouldn't add anything OMAP-specific to the TLL driver. So the exported > > symbols should still be usable by drivers on other SoCs. But perhaps I am > > misunderstanding your point? > > A bit :-) > > EHCI/OHCI will need to ask TLL to enable TLL clock, because it's > EHCI/OHCI who configure the port. Unless I misunderstood what Keshava > did (and no, I didn't just read the code, too lazy :-)
The calls to the TLL driver only need to go into the OMAP-specific ehci-omap.c and ohci-omap3.c wrappers, as far as I can see. So I don't think there's a need to modify the generic OHCI/EHCI drivers...
- Paul
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