Re: [PATCH 0/4] PCI legacy I/O port free driver (take 3)

[Grant Grundler <grundler@parisc-linux.org>]

On Mon, Feb 27, 2006 at 12:43:09PM -0500, Jeff Garzik wrote:
> This series still leaves a lot to be desired, and creates unnecessary
> driver churn.

This is a pretty small change and is not necessary for every driver.
What do you still desire that this patch set doesn't provide?

>   The better solution is:
> 
> 1) pci_enable_device() enables what it can
> 
> 2) Drivers, as they already do, will fail if they cannot map the desired
> memory or IO resources that are needed.
> 
> Thus, the PCI layer needs only to do #1, and existing driver code
> handles the rest of the situation as one currently expects.

If in #1 pci_enable_device() assigns I/O Port resources even though
the driver doesn't need it, PCI devices which _only_ support I/O Port
space will get screwed (depending on config). We are trying to avoid that.
Or do you have another way of avoiding unused resource allocation?

thanks,
grant