Re: [PATCH 2/2] serial: Add support for Fintek F81216A LPC to 4 UART

[Ricardo Ribalda Delgado]

Hello Alan

> Less than ideal in some ways because the base may well be remapped by
> other hardware or on non x86 devices. No obvious ideas how to fix it
> though and PnP kind of implies x86.

If I extend the driver to consider other hw than x86 and PnP I will
definitely  look into this.

>
> On the bright side you can then make the resource layer do your locking
> work for you. We have an IORESOURCE_MUXED flag for these little horrors
> so you can request the resource with IORESOURCE_MUXED. If the resource is
> busy then you will get a failure back, if it is idle you will get the
> resource, if it is busy but held by another driver using IORESOURCE_MUXED
> then the request will block until they finish with it.

I was not aware of request_mutex, thanks for your help!. I am
preparing v2 with no mutex and requtest_mutex_region.

Thanks!

-- 
Ricardo Ribalda
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