Re: [PATCH] arm64: dts: sdm845: Add PSCI cpuidle low power states

From: Doug Anderson
Date: Tue Oct 30 2018 - 12:52:18 EST


Resending since I accidentally clicked back to HTML and lists all bounced. :(

On Tue, Oct 30, 2018 at 9:24 AM Raju P L S S S N <rplsssn@xxxxxxxxxxxxxx> wrote:
>
> On 10/24/2018 12:06 AM, Doug Anderson wrote:
> > Hi,
> >
> > On Mon, Oct 15, 2018 at 10:02 AM Raju P.L.S.S.S.N
> > <rplsssn@xxxxxxxxxxxxxx> wrote:
> >> + idle-states {
> >> + entry-method = "psci";
> >> +
> >> + C0_CPU_SPC: c0_spc {
> >
> > nit: all these nodes should have dashes instead of spaces in the node
> > names (labels can still have spaces). AKA:
> >
> > C0_CPU_SPC: c0-spc {
>
> Sure. I will change this. (However, from device tree specification v0.2,
> I see that Table 2.1 mentions underscore as valid character for node.
> Please correct me if I'm missing something)

You're right that I don't see it there. I've always heard that they
are allowed but discouraged. One place that mentions this:

https://elinux.org/Device_Tree_Linux

> Linux conventions
> * node names
> * use dash "-" instead of underscore "_"

That same site points that the majority of people use dashes in node
names instead of underscores.

-Doug