Re: [PATCH] gpio: omap: Honor "aliases" node

On Tue, Mar 02, 2021 at 05:21:23PM +0100, Linus Walleij wrote:

On Tue, Mar 2, 2021 at 2:18 AM Alexander Sverdlin
[off-list ref] wrote:

quoted

Currently the naming of the GPIO chips depends on their order in the DT,
but also on the kernel version (I've noticed the change from v5.10.x to
v5.11). Honor the persistent enumeration in the "aliases" node like other
GPIO drivers do.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
---
Yes, I noticed checkpatch "WARNING: DT binding docs and includes should be
a separate patch."
However, the parts below are tiny and barely make sense separately.

I've shut it down in the past because the instance ordering is a
linuxism and the needs are in the Linux userspace somehow.
It is different from a UART for example, which always need to
be at the same place on any operating system, hence it has an
alias.

For kernelspace the instance order should not matter, since
all resources are obtained from the device tree anyway
by phandle.

Thank you!

Can we remove the ones we have already for GPIO? 

BTW, It's been on my todo list for a while to start requiring 
documentation of alias names so we can reject new ones and get rid of 
some of the unused existing ones. Some platforms have numbered 
everything...

Rob