Hi, On Wed, Nov 02, 2011 at 07:54:04PM +0000, Russell King - ARM Linux wrote: > On Wed, Nov 02, 2011 at 09:48:28PM +0200, Felipe Balbi wrote: > > Hi, > > > > you forgot to comment on the fact that gpio_desc shouldn't be held in an > > array. Any comments ? > > I did not comment on that because that's someone elses problem. fair enough. > > What I mean is that, just like irq_descs, we should be able to allocate > > them dynamically. Maybe, just like irq_descs, hold them in a radix tree > > and maybe even have a matching API "gpio_alloc_descs()". > > Probably - I expect Grant would really like to see some patches along > those lines. As I say, someone elses problem. > > But what is _our_ problem is what to do with all the ARCH_NR_GPIOs > that we have now, and stop them increasing. There is a trivial solution > to that which I outlined which can be used until GPIO gets something > along your idea - and which doesn't involve me having to argue with > those who think that the kernel should remain as small as possible. k, I'll see if I can cook something up. -- balbi
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