Increase ARCH_NR_GPIO for ARCH_ASPEED?

[Andrew Jeffery]

On Mon, 18 Feb 2019, at 15:26, Tao Ren wrote:
> Hi Andrew,
> 
> On 2/17/19, 6:48 PM, "Andrew Jeffery" <andrew at aj.id.au> wrote:
> > However, there's no reason you can't narrow the change to only apply
> > to your system (rather than do it in the base defconfig and affect all
> > systems).
> 
> Perhaps it's my lack of greater knowledge on kconfig; I actually tried 
> a few options but couldn't find a nice way to apply the change to my 
> system only.
> 
> At first, I tried to customize ARCH_NR_GPIO in my <old.config> file, 
> but the value was set to default (or ignored) by running "make 
> olddefconfig".
> 
> Then I added "input prompt" for ARCH_NR_GPIO option: customized value 
> in <old.config> was applied while running "make olddefconfig", but my 
> concern is the approach may impact more users?
> 
> My third approach is what I proposed in this email thread (setting 
> default ARCH_NR_GPIO to 1024 for ARCH_ASPEED).
> 
> I'm looking forward for your suggestions. Thank you again.

As an example, for Tiogapass, you should be able to define `CONFIG_ARCH_NR_GPIO = 1024` in tiogapass.cfg:

https://github.com/openbmc/meta-facebook/blob/master/meta-tiogapass/recipes-kernel/linux/linux-aspeed/tiogapass.cfg

Andrew