Re: [RFC 1/4] ARM: imx: use device_initcall for imx_soc_device_init

[Shawn Guo]

On Fri, Jan 17, 2020 at 08:15:54AM +0000, Peng Fan wrote:
> > > Subject: [RFC 1/4] ARM: imx: use device_initcall for
> > > imx_soc_device_init
> > >
> > > From: Peng Fan <peng.fan@xxxxxxx>
> > >
> > > This is preparation to move imx_soc_device_init to drivers/soc/imx/
> > >
> > > There is no reason to must put dt devices under /sys/devices/soc0,
> > > they could also be under /sys/devices/platform, so we could pass NULL
> > > as parent when calling of_platform_default_populate.
> > >
> > 
> > This change will impact various internal test case & userspace lib, I think.
> > Need to ask test team & other developer to double check the impact.
> 
> /sys/devices/soc0 is still there, the patchset only moves
> the platform devices which under /sys/devices/soc0 to /sys/devices/platform

Jacky's concern still stands, as there are many user spaces which will be
broken and need update.

> In this way, we aligned with ARM64. And simplify arch code by moving
> the code to drivers/soc/imx. In future, considering more cleanup,
> we could merge the code to soc-imx8.c, since they share similar
> silicon rev ocotp logic.

Though this is a good thing from maintenance point of view, we do not
want to break user spaces.

Shawn